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<meta name="description" content="Search results for: cows"> <meta name="keywords" content="cows"> <meta name="viewport" content="width=device-width, initial-scale=1, minimum-scale=1, maximum-scale=1, user-scalable=no"> <meta charset="utf-8"> <link href="https://cdn.waset.org/favicon.ico" type="image/x-icon" rel="shortcut icon"> <link href="https://cdn.waset.org/static/plugins/bootstrap-4.2.1/css/bootstrap.min.css" rel="stylesheet"> <link href="https://cdn.waset.org/static/plugins/fontawesome/css/all.min.css" rel="stylesheet"> <link href="https://cdn.waset.org/static/css/site.css?v=150220211555" rel="stylesheet"> </head> <body> <header> <div class="container"> <nav class="navbar navbar-expand-lg navbar-light"> <a class="navbar-brand" href="https://waset.org"> <img src="https://cdn.waset.org/static/images/wasetc.png" alt="Open Science Research Excellence" title="Open Science Research Excellence" /> </a> <button class="d-block d-lg-none navbar-toggler ml-auto" type="button" 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class="input-group"> <i class="fas fa-search"></i> <input type="text" class="search-query" name="q" placeholder="Author, Title, Abstract, Keywords" value="cows"> <input type="submit" class="btn_search" value="Search"> </div> </div> </form> </div> </div> <div class="row mt-3"> <div class="col-sm-3"> <div class="card"> <div class="card-body"><strong>Commenced</strong> in January 2007</div> </div> </div> <div class="col-sm-3"> <div class="card"> <div class="card-body"><strong>Frequency:</strong> Monthly</div> </div> </div> <div class="col-sm-3"> <div class="card"> <div class="card-body"><strong>Edition:</strong> International</div> </div> </div> <div class="col-sm-3"> <div class="card"> <div class="card-body"><strong>Paper Count:</strong> 125</div> </div> </div> </div> <h1 class="mt-3 mb-3 text-center" style="font-size:1.6rem;">Search results for: cows</h1> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">125</span> Reproductive Performance of Dairy Cows at Different Parities: A Case Study in Enrekang Regency, Indonesia</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Muhammad%20Yusuf">Muhammad Yusuf</a>, <a href="https://publications.waset.org/abstracts/search?q=Abdul%20Latief%20Toleng"> Abdul Latief Toleng</a>, <a href="https://publications.waset.org/abstracts/search?q=Djoni%20Prawira%20Rahardja"> Djoni Prawira Rahardja</a>, <a href="https://publications.waset.org/abstracts/search?q=Ambo%20Ako"> Ambo Ako</a>, <a href="https://publications.waset.org/abstracts/search?q=Sahiruddin%20Sahiruddin"> Sahiruddin Sahiruddin</a>, <a href="https://publications.waset.org/abstracts/search?q=Abdi%20Eriansyah"> Abdi Eriansyah</a> </p> <p class="card-text"><strong>Abstract:</strong></p> The objective of this study was to know the reproductive performance of dairy cows at different parities. A total of 60 dairy Holstein-Friesian cows with parity one to three from five small farms raised by the farmers were used in the study. All cows were confined in tie stall barn with rubber on the concrete floor. The herds were visited twice for survey with the help of a questionnaire. Reproductive parameters used in the study were days open, calving interval, and service per conception (S/C). The results of this study showed that the mean (±SD) days open of the cows in parity 2 was slightly longer than those in parity 3 (228.2±121.5 vs. 205.5±144.5; P=0.061). None cows conceived within 85 days postpartum in parity 3 in comparison to 13.8% cows conceived in parity 2. However, total cows conceived within 150 days post partum in parity 2 and parity 3 were 30.1% and 36.4%, respectively. Likewise, after reaching 210 days after calving, number of cows conceived in parity 3 had higher than number of cows in parity 2 (72.8% vs. 44.8%; P<0.05). The mean (±SD) calving interval of the cows in parity 2 and parity 3 were 508.2±121.5 and 495.5±144.1, respectively. Number of cows with calving interval of 400 and 450 days in parity 3 was higher than those cows in parity 2 (23.1% vs. 17.2% and 53.9% vs. 31.0%). Cows in parity 1 had significantly (P<0.01) lower number of S/C in comparison to the cows with parity 2 and parity 3 (1.6±1.2 vs. 3.5±3.4 and 3.3±2.1). It can be concluded that reproductive performance of the cows is affected by different parities. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=dairy%20cows" title="dairy cows">dairy cows</a>, <a href="https://publications.waset.org/abstracts/search?q=parity" title=" parity"> parity</a>, <a href="https://publications.waset.org/abstracts/search?q=days%20open" title=" days open"> days open</a>, <a href="https://publications.waset.org/abstracts/search?q=calving%20interval" title=" calving interval"> calving interval</a>, <a href="https://publications.waset.org/abstracts/search?q=service%20per%20conception" title=" service per conception"> service per conception</a> </p> <a href="https://publications.waset.org/abstracts/60110/reproductive-performance-of-dairy-cows-at-different-parities-a-case-study-in-enrekang-regency-indonesia" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/60110.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">257</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">124</span> Investigation the Difference of Several Hormones Correlated to Reproduction between Infertile and Fertile Dairy Cows</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Ali%20M.%20Mutlag">Ali M. Mutlag</a>, <a href="https://publications.waset.org/abstracts/search?q=Yang%20Zhiqiang"> Yang Zhiqiang</a>, <a href="https://publications.waset.org/abstracts/search?q=Meng%20Jiaren"> Meng Jiaren</a>, <a href="https://publications.waset.org/abstracts/search?q=Zhang%20Jingyan"> Zhang Jingyan</a>, <a href="https://publications.waset.org/abstracts/search?q=Li%20Jianxi"> Li Jianxi</a> </p> <p class="card-text"><strong>Abstract:</strong></p> The object of this study was to investigate several hormones correlated to the reproduction and Inhibin A, Inhibin B and NO levels in the infertile dairy cows as attempt to illustrate the physiological causes of dairy cows infertility. 40 Holstein cows (21 infertile and 19 fertile) were used at estrous phase of the cycle, Hormones FSH, LH, E2, Testosterone, Were measured using ELISA method. Inhibin A and B also estimated by ELISA method, Nitric oxide was measured by Greiss reagent method. The results showed different concentrations of the hormone in which FSH illustrated significantly higher concentration in the infertile cows than fertile cows (P<0.05). LH and E2 showed significant decrease in the infertile cows than the fertile cows (P<0.05), No significant difference appeared in testosterone concentrations in the fertile cows and infertile cows (P>0.05). The both inhibins A and B showed significant P<0.05 decrease concentrations in the infertile cows also NO showed clearly significant decrease P<0.05 in the infertile cows. In conclusion, The present study approved the poorly ovarian activities and reproduction disturbance of infertile cows in spite of trigger estrous signs, The study confirmed a positive correlation between inhibins and NO to regulate the ovarian physiology. These inhibins represent effective markers of dairy cows infertility. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=cows" title="cows">cows</a>, <a href="https://publications.waset.org/abstracts/search?q=inhibins%20A%20and%20B" title=" inhibins A and B"> inhibins A and B</a>, <a href="https://publications.waset.org/abstracts/search?q=infertility" title=" infertility"> infertility</a>, <a href="https://publications.waset.org/abstracts/search?q=nitric%20oxide%20%28NO%29" title=" nitric oxide (NO)"> nitric oxide (NO)</a> </p> <a href="https://publications.waset.org/abstracts/1332/investigation-the-difference-of-several-hormones-correlated-to-reproduction-between-infertile-and-fertile-dairy-cows" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/1332.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">288</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">123</span> Cows Milk Quality on Different Sized Dairy Farms</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Ramut%C4%97%20Miseikien%C4%97">Ramutė Miseikienė</a>, <a href="https://publications.waset.org/abstracts/search?q=Saulius%20Tusas"> Saulius Tusas</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Somatic cell count and bacteria count are the main indicators of cow milk quality. The aim of this study was to analyze and compare parameters of milk quality in different-sized cows herds. Milk quality of ten dairy cows farms during one year period was analyzed. Dairy farms were divided into five groups according to number of cows in the farm (under 50 cows, 51–100 cows, 101–200 cows, 201–400 cows and more than 400 cows). The averages of somatic cells bacteria count in milk and milk freezing temperature were analyzed. Also, these parameters of milk quality were compared during outdoor (from May to September) and indoor (from October to April) periods. The largest number of SCC was established in the smallest farms, i.e., in farms under 50 cows and 51-100 cows (respectively 264±9,19 and 300±10,24 thousand/ml). Reliable link between the smallest and largest dairy farms and farms with 101-200 and 201-400 cows and count of somatic cells in milk has not been established (P > 0.05). Bacteria count had a low tendency to decrease when the number of cows in farms increased. The highest bacteria number was determined in the farms with 51-100 cows and the the lowest bacteria count was in milk when 201-400 and more than 401 cows were kept. With increasing the number of cows milk maximal freezing temperature decreases (significant negative trend), i. e, indicator is improving. It should be noted that in all farms milk freezing point never exceeded requirements (-0.515 °C). The highest difference between SCC in milk during the indoor and outdoor periods was established in farms with 201-400 cows (respectively 218.49 thousand/ml and 268.84 thousand/ml). However, the count of SC was significantly higher (P < 0.05) during outdoor period in large farms (201-400 and more cows). There was no significant difference between bacteria count in milk during both – outdoor and indoor – periods (P > 0.05). <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=bacteria" title="bacteria">bacteria</a>, <a href="https://publications.waset.org/abstracts/search?q=cow" title=" cow"> cow</a>, <a href="https://publications.waset.org/abstracts/search?q=farm%20size" title=" farm size"> farm size</a>, <a href="https://publications.waset.org/abstracts/search?q=somatic%20cell%20count" title=" somatic cell count"> somatic cell count</a> </p> <a href="https://publications.waset.org/abstracts/69022/cows-milk-quality-on-different-sized-dairy-farms" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/69022.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">267</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">122</span> Rumination Time and Reticuloruminal Temperature around Calving in Eutocic and Dystocic Dairy Cows</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Levente%20Kov%C3%A1cs">Levente Kovács</a>, <a href="https://publications.waset.org/abstracts/search?q=Fruzsina%20Luca%20K%C3%A9z%C3%A9r"> Fruzsina Luca Kézér</a>, <a href="https://publications.waset.org/abstracts/search?q=Ott%C3%B3%20Szenci"> Ottó Szenci</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Prediction of the onset of calving and recognizing difficulties at calving has great importance in decreasing neonatal losses and reducing the risk of health problems in the early postpartum period. In this study, changes of rumination time, reticuloruminal pH and temperature were investigated in eutocic (EUT, n = 10) and dystocic (DYS, n = 8) dairy cows around parturition. Rumination time was continuously recorded using an acoustic biotelemetry system, whereas reticuloruminal pH and temperature were recorded using an indwelling and wireless data transmitting system. The recording period lasted from 3 d before calving until 7 days in milk. For the comparison of rumination time and reticuloruminal characteristics between groups, time to return to baseline (the time interval required to return to baseline from the delivery of the calf) and area under the curve (AUC, both for prepartum and postpartum periods) were calculated for each parameter. Rumination time decreased from baseline 28 h before calving both for EUT and DYS cows (P = 0.023 and P = 0.017, respectively). After 20 h before calving, it decreased onwards to reach 32.4 ± 2.3 and 13.2 ± 2.0 min/4 h between 8 and 4 h before delivery in EUT and DYS cows, respectively, and then it decreased below 10 and 5 min during the last 4 h before calving (P = 0.003 and P = 0.008, respectively). Until 12 h after delivery rumination time reached 42.6 ± 2.7 and 51.0 ± 3.1 min/4 h in DYS and EUT dams, respectively, however, AUC and time to return to baseline suggested lower rumination activity in DYS cows than in EUT dams for the 168-h postpartum observational period (P = 0.012 and P = 0.002, respectively). Reticuloruminal pH decreased from baseline 56 h before calving both for EUT and DYS cows (P = 0.012 and P = 0.016, respectively), but did not differ between groups before delivery. In DYS cows, reticuloruminal temperature decreased from baseline 32 h before calving by 0.23 ± 0.02 °C (P = 0.012), whereas in EUT cows such a decrease was found only 20 h before delivery (0.48 ± 0.05 °C, P < 0.01). AUC of reticuloruminal temperature calculated for the prepartum period was greater in EUT cows than in DYS cows (P = 0.042). During the first 4 h after calving, it decreased from 39.7 ± 0.1 to 39.00 ± 0.1 °C and from 39.8 ± 0.1 to 38.8 ± 0.1 °C in EUT and DYS cows, respectively (P < 0.01 for both groups) and reached baseline levels after 35.4 ± 3.4 and 37.8 ± 4.2 h after calving in EUT and DYS cows, respectively. Based on our results, continuous monitoring of changes in rumination time and reticuloruminal temperature seems to be promising in the early detection of cows with a higher risk of dystocia. Depressed postpartum rumination time of DYS cows highlights the importance of the monitoring of cows experiencing difficulties at calving. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=reticuloruminal%20pH" title="reticuloruminal pH">reticuloruminal pH</a>, <a href="https://publications.waset.org/abstracts/search?q=reticuloruminal%20temperature" title=" reticuloruminal temperature"> reticuloruminal temperature</a>, <a href="https://publications.waset.org/abstracts/search?q=rumination%20time" title=" rumination time"> rumination time</a>, <a href="https://publications.waset.org/abstracts/search?q=dairy%20cows" title=" dairy cows"> dairy cows</a>, <a href="https://publications.waset.org/abstracts/search?q=dystocia" title=" dystocia"> dystocia</a> </p> <a href="https://publications.waset.org/abstracts/61949/rumination-time-and-reticuloruminal-temperature-around-calving-in-eutocic-and-dystocic-dairy-cows" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/61949.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">316</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">121</span> Relationship between Reproduction Performances and Coat Characteristics of Montbeliarde Cows during Hot Season in Algeria</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Sara%20Lamari">Sara Lamari</a>, <a href="https://publications.waset.org/abstracts/search?q=Toufik%20Madani"> Toufik Madani</a> </p> <p class="card-text"><strong>Abstract:</strong></p> This study aimed to explore the relationship between reproduction performances and coat characteristics of Montbéliarde cows born in Algeria or imported from Europe during the hot season in Algeria. Hair coat traits (hair coat color, Hair Weight, hair length, the number of hair per unit area, total hair diameters and hair medulla diameters) were estimated in 18 imported cattle and 49 locally born cows. These traits were measured in an area of 20cm below the dorsal line in the center of the thorax. Results showed that hair coats were significantly different between locally born and imported cows. Imported cows had whiter coats when compared to locally born cows for Montbéliarde cows. A significant effect of total hair diameter was observed on the interval from calving to conception (IC) for imported Montbéliarde cows, suggesting less incidence of heat stress on reproduction efficiency of cows with thin diameter hair coats. Montbéliarde cows with short hair coat registered significantly more number of mating per conception (2, 28±1, 93 Vs. 1,67±0,92) and IC (98,04±78,81Vs 74.53 ± 35.60 days) when compared to cows with long hairs. Hair works as a temperature regulator in association with muscles in the skin and may affect reproduction performances during hit stress season. It can be assumed that the length and a total diameter of hairs for the Montbeliarde breed appears to be related to their reproductive efficiency. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=hair%20coat" title="hair coat">hair coat</a>, <a href="https://publications.waset.org/abstracts/search?q=reproduction" title=" reproduction"> reproduction</a>, <a href="https://publications.waset.org/abstracts/search?q=Montbeliarde%20cow" title=" Montbeliarde cow"> Montbeliarde cow</a>, <a href="https://publications.waset.org/abstracts/search?q=hot%20season" title=" hot season"> hot season</a> </p> <a href="https://publications.waset.org/abstracts/138643/relationship-between-reproduction-performances-and-coat-characteristics-of-montbeliarde-cows-during-hot-season-in-algeria" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/138643.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">165</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">120</span> Acute Phase Proteins as Biomarkers of Urinary Tract Infection (UTI) in Dairy Cattle</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Wael%20El-Deeb">Wael El-Deeb</a> </p> <p class="card-text"><strong>Abstract:</strong></p> The present study aimed to investigate the diagnostic importance of acute phase proteins in urinary tract infection (UTI) in cattle. We describe the clinical, bacteriological and biochemical findings in 99 lactating cows. Blood and urine samples from diseased (n=84) and control healthy cows (n=15) were submitted to laboratory investigations. The urine analysis revealed hematuria and pyuria in UTI group. The isolated bacteria were E.coli (43/84) Corynebacterium spp, (31/84), Proteus spp. (6/84) and Streptococcus spp (4/84). The concentrations of Haptoglobin (Hp), serum amyloid A (SAA), α1-Acid glycoprotein (AGP), fibrinogen (Fb), total protein, albumen, and globulin were higher in cows with UTI when compared to healthy ones. Fifty-one of 84 cows with UTI were successfully treated. The levels of Hp, SAA, AGP, total protein, and globulin were associated with the odds of treatment failure. Conclusively, acute phase proteins could be used as diagnostic and prognostic biomarkers in cows with UTI. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=cows" title="cows">cows</a>, <a href="https://publications.waset.org/abstracts/search?q=urinary" title=" urinary"> urinary</a>, <a href="https://publications.waset.org/abstracts/search?q=infections" title=" infections"> infections</a>, <a href="https://publications.waset.org/abstracts/search?q=haptoglobin" title=" haptoglobin"> haptoglobin</a>, <a href="https://publications.waset.org/abstracts/search?q=serum%20Amyloid%20A" title=" serum Amyloid A"> serum Amyloid A</a> </p> <a href="https://publications.waset.org/abstracts/17849/acute-phase-proteins-as-biomarkers-of-urinary-tract-infection-uti-in-dairy-cattle" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/17849.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">724</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">119</span> Ultrasonic Assessment of Corpora lutea and Plasma Progesterone Levels in Early Pregnant and Non Pregnant Cows</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Abdurraouf%20O.%20Gaja">Abdurraouf O. Gaja</a>, <a href="https://publications.waset.org/abstracts/search?q=Salah%20Y.%20A.%20Al-Dahash"> Salah Y. A. Al-Dahash</a>, <a href="https://publications.waset.org/abstracts/search?q=Guru%20Solmon%20Raju"> Guru Solmon Raju</a>, <a href="https://publications.waset.org/abstracts/search?q=Chikara%20Kubota"> Chikara Kubota</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Corpus luteum cross sectional (by ultrasonography) and plasma progesterone (by DELFIA) were estimated in early pregnant and non pregnant cows on days 14th and 20th to 23rd post insemination. On day 14th, corpus luteum sectional area was 348.43 mm2 in pregnant and 387.84mm2 in non pregnant cows. Within days 20th to 23rd, corpus luteum sectional area ranged between 342.06 and 367.90 mm2 in pregnant and between 193.85 and 270.69 mm2 in non pregnant cows. Plasma progesterone level was 2.43 ng/ml in pregnant and 2.46 ng/ml in non pregnant cows on day 14th, while during days 20th to 23rd the level ranged between 2.47 and 2,84 ng/ml in pregnant and between 0.53 and 1.17 ng/ml in non pregnant cows. Results of both luteal tissue areas as well as plasma progesterone levels were highly significantly deferent (P<0.01) between pregnant and non pregnant cows during days 20th to 23rd, but there were no significant differences on day 14th. The correlation between CL cross-sectional area and plasma progesterone level was 0.4 in pregnant cows and 0.99 in non pregnant cow. It is clear, from this study, that ultrasonic assessment of corpora lutea is a viable alternative to determine plasma progesterone levels for early pregnancy diagnosis in cows. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=progesterone" title="progesterone">progesterone</a>, <a href="https://publications.waset.org/abstracts/search?q=ultrasonography" title=" ultrasonography"> ultrasonography</a>, <a href="https://publications.waset.org/abstracts/search?q=corpus%20luteum" title=" corpus luteum"> corpus luteum</a>, <a href="https://publications.waset.org/abstracts/search?q=pregnancy%20diagnosis" title=" pregnancy diagnosis"> pregnancy diagnosis</a>, <a href="https://publications.waset.org/abstracts/search?q=cow" title=" cow"> cow</a> </p> <a href="https://publications.waset.org/abstracts/1328/ultrasonic-assessment-of-corpora-lutea-and-plasma-progesterone-levels-in-early-pregnant-and-non-pregnant-cows" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/1328.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">308</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">118</span> The Effect of Cow Reproductive Traits on Lifetime Productivity and Longevity</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=L%C4%81sma%20Cielava">Lāsma Cielava</a>, <a href="https://publications.waset.org/abstracts/search?q=Daina%20Jonkus"> Daina Jonkus</a>, <a href="https://publications.waset.org/abstracts/search?q=L%C4%ABga%20Paura"> Līga Paura</a> </p> <p class="card-text"><strong>Abstract:</strong></p> The age of first calving (AFC) is one of the most important factors that have a significant impact on cow productivity in different lactations and its whole life. A belated AFC leads to reduced reproductive performance and it is one of the main reasons for reduced longevity. Cows that calved in time period from 2001-2007 and in this time finished at least four lactations were included in the database. Data were obtained from 68841 crossbred Holstein Black and White (HM), crossbred Latvian Brown (LB), and Latvian Brown genetic resources (LBGR) cows. Cows were distributed in four groups depending on age at first calving. The longest lifespan was conducted for LBGR cows, but they were also characterized with lowest lifetime milk yield and life day milk yield. HM breed cows had the shortest lifespan, but in the lifespan of 2862.2 days was obtained in average 37916.4 kg milk accordingly 13.2 kg milk in one life day. HM breed cows were also characterized with longer calving intervals (CI) in first four lactations, but LBGR cows had the shortest CI in the study group. Age at first calving significantly affected the length of CI in different lactations (p<0.05). HM cows that first time calved >30 months old in the fourth lactation had the longest CI in all study groups (421.4 days). The LBGR cows were characterized with the shortest CI, but there was slight increase in second and third lactation. Age at first calving had a significant impact on cows’ age in each calving time. In the analysis, cow group was conducted that cows with age at first calving <24 months or in average 580.5 days at the time of fifth calving were 2156.7 days (5.9 years) old, but cows with age at first calving >30 months (932.6 days) at the time of fifth calving were 2560.9 days (7.3 years) old. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=age%20at%20first%20calving" title="age at first calving">age at first calving</a>, <a href="https://publications.waset.org/abstracts/search?q=calving%20interval" title=" calving interval"> calving interval</a>, <a href="https://publications.waset.org/abstracts/search?q=longevity" title=" longevity"> longevity</a>, <a href="https://publications.waset.org/abstracts/search?q=milk%20yield" title=" milk yield"> milk yield</a> </p> <a href="https://publications.waset.org/abstracts/60223/the-effect-of-cow-reproductive-traits-on-lifetime-productivity-and-longevity" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/60223.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">218</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">117</span> An Algorithm for Herding Cows by a Swarm of Quadcopters</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Jeryes%20Danial">Jeryes Danial</a>, <a href="https://publications.waset.org/abstracts/search?q=Yosi%20Ben%20Asher"> Yosi Ben Asher</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Algorithms for controlling a swarm of robots is an active research field, out of which cattle herding is one of the most complex problems to solve. In this paper, we derive an independent herding algorithm that is specifically designed for a swarm of quadcopters. The algorithm works by devising flight trajectories that cause the cows to run-away in the desired direction and hence herd cows that are distributed in a given field towards a common gathering point. Unlike previously proposed swarm herding algorithms, this algorithm does not use a flocking model but rather stars each cow separately. The effectiveness of this algorithm is verified experimentally using a simulator. We use a special set of experiments attempting to demonstrate that the herding times of this algorithm correspond to field diameter small constant regardless of the number of cows in the field. This is an optimal result indicating that the algorithm groups the cows into intermediate groups and herd them as one forming ever closing bigger groups. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=swarm" title="swarm">swarm</a>, <a href="https://publications.waset.org/abstracts/search?q=independent" title=" independent"> independent</a>, <a href="https://publications.waset.org/abstracts/search?q=distributed" title=" distributed"> distributed</a>, <a href="https://publications.waset.org/abstracts/search?q=algorithm" title=" algorithm"> algorithm</a> </p> <a href="https://publications.waset.org/abstracts/134795/an-algorithm-for-herding-cows-by-a-swarm-of-quadcopters" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/134795.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">177</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">116</span> The Possibility of Increase UFA in Milk by Adding of Canola Seed in Holstein Dairy Cow Diets</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=H.%20Mansoori%20Yarahmadi">H. Mansoori Yarahmadi</a>, <a href="https://publications.waset.org/abstracts/search?q=A.%20Aghazadeh"> A. Aghazadeh</a>, <a href="https://publications.waset.org/abstracts/search?q=K.%20Nazeradl"> K. Nazeradl</a> </p> <p class="card-text"><strong>Abstract:</strong></p> This study was done to evaluate the effects of feeding canola seed for enrichment of UFA and milk performance of early lactation dairy cows. Twelve multi parous Holstein cows (635.3±18 kg BW and 36±9 DIM) were assigned to 1 of 3 treatments: 1- Control (CON) without canola seed, 2- 7.5% raw canola seed (CUT), and 3- 7.5% Heat-treated canola seed (CHT) of the total ration. Diets contained same crude protein, but varied in net energy. Diets were composed by basis of corn silage and alfalfa. Cows were milked twice daily for 4 wk. The inclusion of canola seed did not alter DM intake, weight gain, or body condition score of cows. Milk fat from CHT cows had greater proportions of UFA and MUFA (P < 0.05). Feeding CUT increased PUFA without significant difference. Milk fat from CHT had a greater proportion of C18 UFA and tended to have a higher proportion of other UFA. FCM milk yields, milk fat and protein percentages and total yield of these components were similar between treatments. Milk urea nitrogen was lower in cows fed CON and CHT. Feeding canola seed to lactating dairy cows resulted in milk fat with higher proportions of healthful fatty acids without adverse affecting milk yield or milk composition. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=canola%20seed" title="canola seed">canola seed</a>, <a href="https://publications.waset.org/abstracts/search?q=fatty%20acid" title=" fatty acid"> fatty acid</a>, <a href="https://publications.waset.org/abstracts/search?q=dairy%20cow" title=" dairy cow"> dairy cow</a>, <a href="https://publications.waset.org/abstracts/search?q=milk" title=" milk"> milk</a> </p> <a href="https://publications.waset.org/abstracts/28716/the-possibility-of-increase-ufa-in-milk-by-adding-of-canola-seed-in-holstein-dairy-cow-diets" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/28716.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">598</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">115</span> Potential Risk Factors Associated with Sole Hemorrhages Causing Lameness in Egyptian Water Buffaloes and Native Breed Cows</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Waleed%20El-Said%20Abou%20El-Amaiem">Waleed El-Said Abou El-Amaiem</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Sole hemorrhages are considered as a main cause for sub clinical laminitis. In this study we aimed at discussing the most prominent risk factors associated with sole hemorrhages causing lameness in Egyptian water buffaloes and native breed cows. The final multivariate logistic regression model showed, a significant association between sub acute ruminal acidosis (P< 0.05), limb affected (P< 0.05) and weight (P< 0.05) and sole hemorrhages causing lameness in Egyptian water buffaloes and native breed cows. According to our knowledge, this is the first paper to discuss the risk factors associated with sole hemorrhages causing lameness in Egyptian water buffaloes and native breed cows. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=lameness" title="lameness">lameness</a>, <a href="https://publications.waset.org/abstracts/search?q=buffalo" title=" buffalo"> buffalo</a>, <a href="https://publications.waset.org/abstracts/search?q=sole%20hemorrhages" title=" sole hemorrhages"> sole hemorrhages</a>, <a href="https://publications.waset.org/abstracts/search?q=breed%20cows" title=" breed cows"> breed cows</a> </p> <a href="https://publications.waset.org/abstracts/28867/potential-risk-factors-associated-with-sole-hemorrhages-causing-lameness-in-egyptian-water-buffaloes-and-native-breed-cows" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/28867.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">451</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">114</span> Effect of Parenteral Administration of Vitamin A in Pregnant Dry Cows, on Vitamin A Status of Neonatal Calves</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Samad%20Lotfollahzadeh">Samad Lotfollahzadeh</a> </p> <p class="card-text"><strong>Abstract:</strong></p> To evaluate the effect of intramuscular administration of vitamin A during dry period in pregnant dairy cows, which already received it in their daily ration, on vitamin A status of neonatal calves, a total of 30 cows were randomly selected and divided to two main groups; treatment and control group. Animals in the treatment group were subdivided into two groups. Single intramuscular injection of 2000000 IU vitamin A; was carried in 10 dairy cows at 7 months of pregnancy (group 1). In the second group of treated animals (10 cows) the injection was performed in 8 months of pregnancy (group 2). Ten pregnant dairy cows were received saline injection as placebo and selected as the control group. Blood samples were collected from experimental dairy cows at 7 and 8 months of pregnancy as well as their newborn calves’ pre and after colostrum intake. There was no significant difference between vitamin A and β- carotene concentration of dairy cows of three groups in two last months of pregnancy (P > 0.05). Vitamin A concentration of calves of two treatment groups before and after receiving of colostrum were significantly higher than that in the control group (P < 0.05). There was no significant difference between serum concentrations of vitamin A in calves of two treated groups (P > 0.05). β- Carotene concentration of serum samples of dairy cows and neonatal calves of three groups were not significantly different as compared with together. From results of the present study it can be concluded that daily supplementation of vitamin A in late pregnancy in dairy cows may not compensate the calves need for vitamin A and single injection of this vitamin A during dry either in 7 or 8 months of pregnancy can significantly increase level of vitamin A in their colostrum and neonatal calves. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=dry%20cow" title="dry cow">dry cow</a>, <a href="https://publications.waset.org/abstracts/search?q=beta%20carotene" title=" beta carotene"> beta carotene</a>, <a href="https://publications.waset.org/abstracts/search?q=newborn%20calves" title=" newborn calves"> newborn calves</a>, <a href="https://publications.waset.org/abstracts/search?q=vitamin%20A" title=" vitamin A"> vitamin A</a>, <a href="https://publications.waset.org/abstracts/search?q=dry%20cows" title=" dry cows"> dry cows</a> </p> <a href="https://publications.waset.org/abstracts/37739/effect-of-parenteral-administration-of-vitamin-a-in-pregnant-dry-cows-on-vitamin-a-status-of-neonatal-calves" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/37739.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">376</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">113</span> Effect of Feed Supplement Optipartum C+ 200 (Alfa- Amylase and Beta-Glucanase) in In-Line Rumination Parameters</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Ram%C5%ABnas%20Antanaitis">Ramūnas Antanaitis</a>, <a href="https://publications.waset.org/abstracts/search?q=Lina%20Anskien%C4%97"> Lina Anskienė</a>, <a href="https://publications.waset.org/abstracts/search?q=Robertas%20Sto%C5%A1kus"> Robertas Stoškus</a> </p> <p class="card-text"><strong>Abstract:</strong></p> This study was conducted during 2021.05.01 – 2021.08.31 at the Lithuanian University of health sciences and one Lithuanian dairy farm with 500 dairy cows (55.911381565736, 21.881321760608195). Average calving – 50 cows per month. Cows (n=20) in the treatment group (TG) were fed with feed supplement Optipartum C+ 200 (Enzymes: Alfa- Amylase 57 Units; Beta-Glucanase 107 Units) from 21 days before calving till 30 days after calving with feeding rate 200g/cow/day. Cows in the control group (CG) were fed a feed ration without feed supplement. Measurements started from 6 days before calving and continued till 21 days after calving. The following indicators were registered: with the RumiWatch System: Rumination time; Eating time; Drinking time; Rumination chews; Eating chews; Drinking gulps; Bolus; Chews per minute; Chews per bolus. With SmaXtec system - the temperature, pH of the contents of cows' reticulorumens and cows' activity. According to our results, we found that feeding of cows, from 21 days before calving to 30 days after calving, with a feed supplement with alfa- amylase and beta-glucanase (Optipartum C+ 200) (with dose 200g/cow/day) can produce an increase in: 9% rumination time and eating time, 19% drinking time, 11% rumination chews, 16% eating chews,13% number of boluses per rumination, 5% chews per minute and 16% chews per bolus. We found 1.28 % lower reiticulorumen pH and 0.64% lower reticulorumen temperature in cows fed with the supplement compared with control group cows. Also, cows feeding with enzymes were 8.80% more active. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=Alfa-Amylase" title="Alfa-Amylase">Alfa-Amylase</a>, <a href="https://publications.waset.org/abstracts/search?q=Beta-Glucanase" title=" Beta-Glucanase"> Beta-Glucanase</a>, <a href="https://publications.waset.org/abstracts/search?q=cows" title=" cows"> cows</a>, <a href="https://publications.waset.org/abstracts/search?q=in-line" title=" in-line"> in-line</a>, <a href="https://publications.waset.org/abstracts/search?q=sensors" title=" sensors"> sensors</a> </p> <a href="https://publications.waset.org/abstracts/143264/effect-of-feed-supplement-optipartum-c-200-alfa-amylase-and-beta-glucanase-in-in-line-rumination-parameters" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/143264.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">326</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">112</span> Effects of Specific Essential Oil Compounds on, Feed Intake, Milk Production, and Ruminal Environment in Dairy Cows during Heat Exposure</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Kamran%20Reza-Yazdi">Kamran Reza-Yazdi</a>, <a href="https://publications.waset.org/abstracts/search?q=Mohammad%20Fallah"> Mohammad Fallah</a>, <a href="https://publications.waset.org/abstracts/search?q=Mahdi%20Khodaparast"> Mahdi Khodaparast</a>, <a href="https://publications.waset.org/abstracts/search?q=Farshad%20Kateb"> Farshad Kateb</a>, <a href="https://publications.waset.org/abstracts/search?q=Morteza%20Hosseini-Ghaffari"> Morteza Hosseini-Ghaffari </a> </p> <p class="card-text"><strong>Abstract:</strong></p> The objective of this study was to determine effect of dietary essential oil (EO) compounds, which contained cinnamaldehyde, eugenol, peppermint, coriander, cumin, lemongrass, and an organic carrier on feed intake, milk composition, and rumen fermentation of dairy cows during heat exposure. Thirty-two Holstein cows (days in milk= 60 ± 5) were assigned to one of two treatment groups: a Control and EO fed. The experiment lasted 28 days. Dry matter intake (DMI) was measured daily while and milk production was measured weekly. Our result showed that DMI and milk yield was decreased (P < 0.01) in control cows relative to EO cows. Furthermore, supplementation with EO was associated with a decrease in the molar proportion of propionate (P < 0.05) and increase (P < 0.05) in acetate to propionate ratio. In conclusion, EO supplementations in diets can be useful nutritional modification to alleviate for the decrease DMI and milk production during heat exposure in lactating dairy cows. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=dairy%20cow" title="dairy cow">dairy cow</a>, <a href="https://publications.waset.org/abstracts/search?q=feed%20additive" title=" feed additive"> feed additive</a>, <a href="https://publications.waset.org/abstracts/search?q=plant%20extract" title=" plant extract"> plant extract</a>, <a href="https://publications.waset.org/abstracts/search?q=eugenol" title=" eugenol"> eugenol</a> </p> <a href="https://publications.waset.org/abstracts/17039/effects-of-specific-essential-oil-compounds-on-feed-intake-milk-production-and-ruminal-environment-in-dairy-cows-during-heat-exposure" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/17039.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">793</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">111</span> Effect of Non-Genetic Factors and Heritability Estimate of Some Productive and Reproductive Traits of Holstein Cows in Middle of Iraq</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Salim%20Omar%20Raoof">Salim Omar Raoof</a> </p> <p class="card-text"><strong>Abstract:</strong></p> This study was conducted at the Al-Salam cows’ station for milk production located in Al-Latifiya district - Al-Mahmudiyah district (25 km south of Baghdad governorate) on a sample of (180) Holstein cows imported from Germany by Taj Al-Nahrain company in order to study the effect of the sequence, season and calving year on Total Milk Production (TMP). The lactation period (LP), calving interval, Services per conception and the estimate of the heritability of the studied traits. The results showed that the overall mean of TMP and LP were 3172.53 kg and 237.09-day respectively. The parity effect on TMP in Holstein cows was highly significant (P≤0.01). Total Milk production increased with the advance of parity and mostly reached its maximum value in the 4th and 3rd parity being 3305.87 kg and3286.35 kg per day, respectively. Season of calving has a highly significant (P≤0.01), effect on (TMP). Cows calved in spring had a highest milk production than those calved in other seasons. Season of calving had a highly significant (P≤0.01) effect on services per conception. The result of the study showed the heritability values for TMP, LP, SPC and CL were 0.21, 0.08, 0.08 and 0.07, respectively. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=cows" title="cows">cows</a>, <a href="https://publications.waset.org/abstracts/search?q=non%20genetic" title=" non genetic"> non genetic</a>, <a href="https://publications.waset.org/abstracts/search?q=milk%20production" title=" milk production"> milk production</a>, <a href="https://publications.waset.org/abstracts/search?q=heritability" title=" heritability"> heritability</a> </p> <a href="https://publications.waset.org/abstracts/178895/effect-of-non-genetic-factors-and-heritability-estimate-of-some-productive-and-reproductive-traits-of-holstein-cows-in-middle-of-iraq" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/178895.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">79</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">110</span> Effect of Non-Genetic Factors and Heritability Estimate of Some Productive and Reproductive Traits of Holstein Cows in Middle of Iraq</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Salim%20Omar%20Raoof">Salim Omar Raoof</a> </p> <p class="card-text"><strong>Abstract:</strong></p> This study was conducted at the Al-Salam cows’ station for milk production located in Al-Latifiya district - Al-Mahmudiyah district (25 km south of Baghdad governorate) on a sample of (180) Holstein cows imported from Germany by Taj Al-Nahrain company, in order to study the effect of the sequence, season and calving year on Total Milk Production (TMP). the lactation period (LP), calving interval, Services per conception and the estimate the heritability of the studied traits. The results showed that the overall mean of TMP and LP were 3172.53 kg and237.09-day respectively. The parity effect on TMP in Holstein cows was highly significant (P≤0.01). total Milk production increased with the advanced of parity and mostly reached its maximum value in the 4th and 3rd parity being 3305.87 kg and3286.35 kg per day, respectively. Season of calving has a highly significant (P≤0.01) effect on (TMP). Cows calved in spring had a highest milk production than that calved in other seasons. Season of calving had highly significant (P≤0.01) effect on services per conception. The result of the study showed the heritability value for TMP, LP, SPC and CL were 0.21 ,0.08 ,0.08 and 0.07 respectively. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=Holstein" title="Holstein">Holstein</a>, <a href="https://publications.waset.org/abstracts/search?q=cows" title=" cows"> cows</a>, <a href="https://publications.waset.org/abstracts/search?q=milk%20production" title=" milk production"> milk production</a>, <a href="https://publications.waset.org/abstracts/search?q=non-genetic" title=" non-genetic"> non-genetic</a>, <a href="https://publications.waset.org/abstracts/search?q=hertability" title=" hertability"> hertability</a> </p> <a href="https://publications.waset.org/abstracts/177131/effect-of-non-genetic-factors-and-heritability-estimate-of-some-productive-and-reproductive-traits-of-holstein-cows-in-middle-of-iraq" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/177131.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">67</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">109</span> Diagnostics of Subclinical Mastitis in Dairy Cows</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=G.%20Tanbayeva">G. Tanbayeva</a>, <a href="https://publications.waset.org/abstracts/search?q=Z.%20Myrzabekov"> Z. Myrzabekov</a>, <a href="https://publications.waset.org/abstracts/search?q=O.%20Tagayev"> O. Tagayev</a>, <a href="https://publications.waset.org/abstracts/search?q=B.%20Barakhov"> B. Barakhov</a>, <a href="https://publications.waset.org/abstracts/search?q=M.%20Tokayeva"> M. Tokayeva</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Mastitis is widely spread among dairy cows bringing large economic damage resulting in decreased milk yield, deterioration of the milk quality, gastrointestinal tract disorders among young animals, culling of breeding stock, and expenses for sick animal treatment. Up-to-date and accurate diagnostics of subclinical (latent) mastitis in dairy cows has huge practical and economical significance. The aim of the research was to develop a new optimal alternative rapid method for the diagnosis of subclinical mastitis in cows. The study was performed in the laboratory of the Hygiene and Sanitation of Kazakh National Agrarian University. The first stage was to evaluate the different percentages of “Promastit” preparation. It showed that the best diagnostics capacity had 10% dilution. The second stage was to compare “Promastit” with some of the domestic and foreign analogues “Somatic-Test” (Denmark), “MastTest” (Russia), “Mastidin” (Ukraine), “Diagmast” (Kazakhstan). The observation was carried out on 520 dairy cows with subclinical mastitis on farms of Almaty region of Kazakhstan. The effectiveness was checked by milk sedimentation test. Our research tends to show that the diagnostic test "Promastitis" revealed subclinical mastitis in 193 out of 520 lactating cows (37.1% of those examined). At the same time, in the case of using other diagnostic tests, the given index was as follows: 35.5% (mastidin), 34.4% (masttest-AF), 33.8% (somatic-test Ecotest), 30.7% (diagmast). <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=dairy%20cows" title="dairy cows">dairy cows</a>, <a href="https://publications.waset.org/abstracts/search?q=diagnostics" title=" diagnostics"> diagnostics</a>, <a href="https://publications.waset.org/abstracts/search?q=subclinical%20mastitis" title=" subclinical mastitis"> subclinical mastitis</a>, <a href="https://publications.waset.org/abstracts/search?q=test%20Promastit" title=" test Promastit"> test Promastit</a> </p> <a href="https://publications.waset.org/abstracts/43472/diagnostics-of-subclinical-mastitis-in-dairy-cows" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/43472.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">354</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">108</span> Histopathological and Microbiological Studies on Subclinical Endometritis in Repeat Breeder Cow</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Mehmet%20Akoz">Mehmet Akoz</a> </p> <p class="card-text"><strong>Abstract:</strong></p> In this study the clinical, mikrobiological and histopathological diagnoses of subclinic and nonspecific endometritis resulting in repeat breeder. Total of 36 cows, aging between 3-9 years having normal oestrous cycles with no pregnancy following at least 3 unsuccesful inseminations, were used. Biopsy specimens for histopathological and swab for bacteri microbiological cultures were obtanied from endometrium of repeat breeders showing no macroskopic evidence of any defectiveness of genital organs and based on anamneses. Eleven out of 36 cows have positive bacteriological results. While 19 cows have varying degrees of and endometritis, the other 17 cows did not have any pathologic lesions. A total of 19 biopsies in 4 of the I. degree in endometritis, 9 of them II. degree endometritis and 6 were also III. degree endometritis was evaluated. In the majority of cows by the histopathological evaluation results (78.9%) monitored by the second and third-degree endometritis shape, in 83.3% of the isolated microorganisms were identified similar results. Histopathological and microbiological evaluation, along with clinical examination are important for the diagnoses and treatment of repeat breeders, having no resistance with well dissipation to endometrium rifaximina foam formulation was found to be more effective than PGF2α. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=repeat%20breeder" title="repeat breeder">repeat breeder</a>, <a href="https://publications.waset.org/abstracts/search?q=dairy%20cattle" title=" dairy cattle"> dairy cattle</a>, <a href="https://publications.waset.org/abstracts/search?q=histopathology" title=" histopathology"> histopathology</a>, <a href="https://publications.waset.org/abstracts/search?q=PGF2%CE%B1" title=" PGF2α"> PGF2α</a>, <a href="https://publications.waset.org/abstracts/search?q=rifaximina" title=" rifaximina"> rifaximina</a> </p> <a href="https://publications.waset.org/abstracts/47892/histopathological-and-microbiological-studies-on-subclinical-endometritis-in-repeat-breeder-cow" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/47892.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">288</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">107</span> Genetic Polymorphism of Milk Protein Gene and Association with Milk Production Traits in Local Latvian Brown Breed Cows</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Daina%20Jonkus">Daina Jonkus</a>, <a href="https://publications.waset.org/abstracts/search?q=Solvita%20Petrovska"> Solvita Petrovska</a>, <a href="https://publications.waset.org/abstracts/search?q=Dace%20Smiltina"> Dace Smiltina</a>, <a href="https://publications.waset.org/abstracts/search?q=Lasma%20Cielava"> Lasma Cielava</a> </p> <p class="card-text"><strong>Abstract:</strong></p> The beta-lactoglobulin and kappa-casein are milk proteins which are important for milk composition. Cows with beta-lactoglobulin and kappa-casein gene BB genotypes have highest milk crude protein and fat content. The aim of the study was to determinate the frequencies of milk protein gene polymorphisms in local Latvian Brown (LB) cows breed and analyze the influence of beta-lactoglobulin and kappa-casein genotypes to milk productivity traits. 102 cows’ genotypes of milk protein genes were detected using Polymerase Chain Reaction and Restriction Fragment Length Polymorphism (PCR-RFLP) and electrophoresis on 3% agarose gel. For beta-lactoglobulin were observed 2 types of alleles A and B and for kappa-casein 3 types: A, B and E. Highest frequency in beta-lactoglobulin gene was observed for B allele – 0.926. Molecular analysis of beta-lactoglobulin gene shows 86.3% of individuals are homozygous by B allele and animals are with genotypes BB and 12.7% of individuals are heterozygous with genotypes AB. The highest milk yield 4711.7 kg was for 1st lactation cows with AB genotypes, whereas the highest milk protein content (3.35%) and fat content (4.46 %) was for BB genotypes. Analysis of the kappa-casein locus showed a prevalence of the A allele – 0.750. The genetic variant of B was characterized by a low frequency – 0.240. Moreover, the frequency of E occurred in the LB cows’ population with very low frequency – 0.010. 54.9 % of cows are homozygous with genotypes AA, and only 4.9 % are homozygous with genotypes BB. 32.8 % of individuals are heterozygous with genotypes AB, and 2.0 % are with AE. The highest milk productivity was for 1st lactation cows with AB genotypes: milk yield 4620.3 kg, milk protein content 3.39% and fat content 4.53 %. According to the results, in local Latvian brown there are only 2.9% of cows are with BB-BB genotypes, which is related to milk coagulation ability and affected cheese production yield. Acknowledgment: the investigation is supported by VPP 2014-2017 AgroBioRes Project No. 3 LIVESTOCK. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=beta-lactoglobulin" title="beta-lactoglobulin">beta-lactoglobulin</a>, <a href="https://publications.waset.org/abstracts/search?q=cows" title=" cows"> cows</a>, <a href="https://publications.waset.org/abstracts/search?q=genotype%20frequencies" title=" genotype frequencies"> genotype frequencies</a>, <a href="https://publications.waset.org/abstracts/search?q=kappa-casein" title=" kappa-casein"> kappa-casein</a> </p> <a href="https://publications.waset.org/abstracts/59510/genetic-polymorphism-of-milk-protein-gene-and-association-with-milk-production-traits-in-local-latvian-brown-breed-cows" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/59510.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">272</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">106</span> Effect of Prophylactic Oxytocin Therapy on Duration of Retained Fetal Membrane (RFM) in Periparturient Dairy Cows</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Hamid%20Ghasemzadeh-%20Nava">Hamid Ghasemzadeh- Nava</a>, <a href="https://publications.waset.org/abstracts/search?q=Maziar%20Kaveh%20Baghbadorani"> Maziar Kaveh Baghbadorani</a>, <a href="https://publications.waset.org/abstracts/search?q=Amin%20Tamadon"> Amin Tamadon</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Considering response of uterus to ecbolic effect of oxytocin near the time of parturition, this study was done for investigating the effect of prophylactic administration of this hormone on duration of fetal membrane retention, time interval to first detectable estrus, time interval to first service, and conception rate at first service in cases of both normal parturition and dystocia. For this reason cows with (n=18) and without (n=18) dystocia assigned randomly to treatment (n=12) or control (n=6) groups and received intramuscular injection of 100 IU of oxytocin or 10 mL of normal saline respectively. Further observations and investigations indicate that duration of fetal retention is significantly shorter in treatment group cows compared to control groups, regardless of having dystocia (P=0.002) or normal spontaneous calving (P=0.001). The same trend exists for conception rate at first service in which cows in treatment groups had significantly higher conception rate (CR) in comparison to cows in control groups with (P=0.0003) or without dystocia (P=0.017). The time interval to first detected heat and first service didn’t show any difference between groups. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=conception%20rate" title="conception rate">conception rate</a>, <a href="https://publications.waset.org/abstracts/search?q=oxytocin" title=" oxytocin"> oxytocin</a>, <a href="https://publications.waset.org/abstracts/search?q=RFM" title=" RFM"> RFM</a>, <a href="https://publications.waset.org/abstracts/search?q=time%20to%20first%20service" title=" time to first service"> time to first service</a> </p> <a href="https://publications.waset.org/abstracts/37647/effect-of-prophylactic-oxytocin-therapy-on-duration-of-retained-fetal-membrane-rfm-in-periparturient-dairy-cows" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/37647.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">436</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">105</span> Effect of Calving Season on the Economic and Production Efficiency of Dairy Production Breeds</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Eman.%20K.%20Ramadan">Eman. K. Ramadan</a>, <a href="https://publications.waset.org/abstracts/search?q=Abdelgawad.%20S.%20El-Tahawy"> Abdelgawad. S. El-Tahawy</a> </p> <p class="card-text"><strong>Abstract:</strong></p> The objective of this study was to evaluate the effects of calving season on the production and economic efficiency of dairy farms in Egypt. Our study was performed at dairy production farms in the Alexandria, Behera, and Kafr El-Sheikh provinces of Egypt from summer 2010 to winter 2013. The randomly selected dairy farms had herds consisting of Baladi, Holstein-Friesian, or cross-bred (Baladi × Holstein-Friesian) cows. The data were collected from production records and responses to a structured questionnaire. The average total return differed significantly (P < 0.05) between the different cattle breeds and calving seasons. The average total return was highest for the Holstein-Friesian cows that calved in the winter (29106.42 EGP/cow/year), and it was lowest for Baladi cows that calved in the summer (12489.79 EGP/cow/year). Differences in total returns between the cows that calved in the winter or summer or between the foreign and native breeds, as well as variations in calf prices, might have contributed to the differences in milk yield. The average net profit per cow differed significantly (P < 0.05) between the cattle breeds and calving seasons. The average net profit values for the Baladi cows that calved in the winter or summer were 2413 and 2994.96 EGP/cow/year, respectively, and those for the Holstein-Friesian cows were 10744.17 and 7860.56 EGP/cow/year, respectively, whereas those for the cross-bred cows were 10174.86 and 7571.33 EGP/cow/year, respectively. The variations in net profit might have resulted from variation in the availability or price of feed materials, milk prices, or sales volumes. Our results show that the breed and calving season of dairy cows significantly affected the economic efficiency of dairy farms in Egypt. The cows that calved in the winter produced more milk than those that calved in the summer, which may have been the result of seasonal influences, such as temperature, humidity, management practices, and the type of feed or green fodder available. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=calving%20season" title="calving season">calving season</a>, <a href="https://publications.waset.org/abstracts/search?q=economic" title=" economic"> economic</a>, <a href="https://publications.waset.org/abstracts/search?q=production" title=" production"> production</a>, <a href="https://publications.waset.org/abstracts/search?q=efficiency" title=" efficiency"> efficiency</a>, <a href="https://publications.waset.org/abstracts/search?q=dairy" title=" dairy"> dairy</a> </p> <a href="https://publications.waset.org/abstracts/8673/effect-of-calving-season-on-the-economic-and-production-efficiency-of-dairy-production-breeds" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/8673.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">429</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">104</span> Exploring the Feasibility of Introducing Particular Polyphenols into Cow Milk Naturally through Animal Feeding</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Steve%20H.%20Y.%20Lee">Steve H. Y. Lee</a>, <a href="https://publications.waset.org/abstracts/search?q=Jeremy%20P.%20E.%20Spencer"> Jeremy P. E. Spencer</a> </p> <p class="card-text"><strong>Abstract:</strong></p> The aim of the present study was to explore the feasibility of enriching polyphenols in cow milk via addition of flavanone-rich citrus pulp to existing animal feed. 8 Holstein lactating cows were enrolled onto the 4 week feeding study. 4 cows were fed the standard farm diet (control group), with another 4 (treatment group) which are fed a standard farm diet mixed with citrus pulp diet. Milk was collected twice a day, 3 times a week. The resulting milk yield and its macronutrient composition as well as lactose content were measured. The milk phenolic compounds were analysed using electrochemical detection (ECD). <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=milk" title="milk">milk</a>, <a href="https://publications.waset.org/abstracts/search?q=polyphenol" title=" polyphenol"> polyphenol</a>, <a href="https://publications.waset.org/abstracts/search?q=animal%20feeding" title=" animal feeding"> animal feeding</a>, <a href="https://publications.waset.org/abstracts/search?q=lactating%20cows" title=" lactating cows"> lactating cows</a> </p> <a href="https://publications.waset.org/abstracts/11683/exploring-the-feasibility-of-introducing-particular-polyphenols-into-cow-milk-naturally-through-animal-feeding" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/11683.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">299</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">103</span> Effects of Organic Chromium and Propylene Glycol on Milk Yield and Some Serum Biochemical Parameters of Early Lactation Dairy Cows</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Cangir%20Uyarlar">Cangir Uyarlar</a>, <a href="https://publications.waset.org/abstracts/search?q=Ismail%20Bayram"> Ismail Bayram</a>, <a href="https://publications.waset.org/abstracts/search?q=Ibrahim%20Sadi%20Cetingul"> Ibrahim Sadi Cetingul</a>, <a href="https://publications.waset.org/abstracts/search?q=Mustafa%20Kabu"> Mustafa Kabu</a>, <a href="https://publications.waset.org/abstracts/search?q=Eyup%20Eren%20Gultepe"> Eyup Eren Gultepe</a> </p> <p class="card-text"><strong>Abstract:</strong></p> This study was conducted to determine the effects of organic chromium and organic chromium+propylene glycol on milk yield and some blood parameters related with liver fatty acid metabolism in early lactation dairy cows. Thirty multiparous Holstein dairy cows were used as study material. Cows assigned to three groups as control (C), chromium (Cr) and chromium+propylene glycol (CP). Live weight, parity and body condition score were used as covariates for statistical analyses. The study began at calving and finished at 3 weeks after calving. All cows were consumed same diet. Organic chromium and organic chromium+propylene glycol were orally administrated to cows in treatment groups shortly after the morning milking. Blood samples were collected from all cows on 0 (calving), 3rd, 6th, 9th, 12th, 15th, 18th, 21th days after calving. Then, samples were analyzed for BHBA (Betahydroxybutiric acids), NEFA (Non Esterified Fatty Acids), urea, total protein (TP) and glucose concentrations. Weekly milk yields were calculated from daily milk data on farm. Organic chromium treatment had no significant differences on serum biochemical parameters and milk yields. However, administration of organic chromium and propylene glycol combination decreased serum urea and total protein concentration, helped to protection from subclinical metabolic diseases via decreasing serum NEFA and BHBA concentrations. Also, this combination decreased serum glucose levels of cows. Neither only chromium nor chromium and propylene glycol combination did not affect milk yield throughout the study. These findings were suggested that orally administrations of chromium and propylene glycol combination improved liver glucose and fatty acid metabolism, decreased serum parameters which are representing subclinical diseases in early lactation dairy cows. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=chromium" title="chromium">chromium</a>, <a href="https://publications.waset.org/abstracts/search?q=early%20lactation%20dairy%20cows" title=" early lactation dairy cows"> early lactation dairy cows</a>, <a href="https://publications.waset.org/abstracts/search?q=propylene%20glycol" title=" propylene glycol"> propylene glycol</a>, <a href="https://publications.waset.org/abstracts/search?q=milk%20yield" title=" milk yield"> milk yield</a> </p> <a href="https://publications.waset.org/abstracts/33747/effects-of-organic-chromium-and-propylene-glycol-on-milk-yield-and-some-serum-biochemical-parameters-of-early-lactation-dairy-cows" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/33747.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">492</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">102</span> Influence of Probiotics on Dairy Cows Diet</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=V.%20A.%20Vieira">V. A. Vieira</a>, <a href="https://publications.waset.org/abstracts/search?q=M.%20P.%20Sforcini"> M. P. Sforcini</a>, <a href="https://publications.waset.org/abstracts/search?q=V.%20Endo"> V. Endo</a>, <a href="https://publications.waset.org/abstracts/search?q=G.%20C.%20Magioni"> G. C. Magioni</a>, <a href="https://publications.waset.org/abstracts/search?q=M.%20D.%20S.%20Oliveira"> M. D. S. Oliveira</a> </p> <p class="card-text"><strong>Abstract:</strong></p> The main goal of this paper was evaluate the effect of diets containing different levels of probiotic on performance and milk composition of lactating cows. Eight Holstein cows were distributed in two 4x4 Latin square. The diets were based on corn silage, concentrate and the treatment (0, 3, 6 or 9 grams of probiotic/animal/day). It was evaluated the dry matter intake of nutrients, milk yield and composition. The use of probiotics did not affect the nutrient intake (p>0.05) neither the daily milk production or corrected to 4% fat (p>0.05). However, it was observed that there was a significant fall in milk composition with higher levels of probiotics supplementation. These results emphasize the need of further studies with different experimental designs or improve the number of Latin square with longer periods of adaptation. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=dairy%20cow" title="dairy cow">dairy cow</a>, <a href="https://publications.waset.org/abstracts/search?q=milk%20composition" title=" milk composition"> milk composition</a>, <a href="https://publications.waset.org/abstracts/search?q=probiotics" title=" probiotics"> probiotics</a>, <a href="https://publications.waset.org/abstracts/search?q=daily%20milk%20production" title=" daily milk production"> daily milk production</a> </p> <a href="https://publications.waset.org/abstracts/11939/influence-of-probiotics-on-dairy-cows-diet" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/11939.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">261</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">101</span> Biological Organic or Inorganic Sulfur Sources Feeding Effects on Intake and Some Blood Metabolites of Close-Up Holstein Cows</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Mehdi%20Kazemi-Bonchenari">Mehdi Kazemi-Bonchenari</a>, <a href="https://publications.waset.org/abstracts/search?q=Esmaeil%20Manidari"> Esmaeil Manidari</a>, <a href="https://publications.waset.org/abstracts/search?q=Vahid%20Keshavarz"> Vahid Keshavarz</a> </p> <p class="card-text"><strong>Abstract:</strong></p> This study was carried out to investigate the effects of increased level of sulfur by supplementing magnesium sulfate with or without biologically organic source in dairy cow close-up diets on dry matter intake (DMI) and some blood metabolites. The 24 multiparous close-up Holstein cows averaging body weight 687.94 kg and days until expected calving date 21.89 d were allocated in three different treatments (8 cows per each) in a completely randomized design. The first treatment (T1) has contained 0.21% sulfur (DM basis), the second treatment (T2) has contained 0.41% sulfur which entirely supplied through magnesium sulfate and the third treatment (T3) has contained 0.41% sulfur which supplied through combination of magnesium sulfate and an organic source of sulfur. All the cows were fed same diet after parturition until 21 d. The DMI for both pre-calving (P < 0.001) and post-calving was affected by treatments (P < 0.004) and T2 showed the lowest DMI among treatments. Among the blood metabolites, glucose, calcium, and copper were decreased in T2 (P < 0.05). However, blood concentrations of BHBA, NEFA, urea, CPK, and AST were increased in T2 (P < 0.05). The results of the present study indicate that although magnesium sulfate has negative effect on dairy cow health and performance, a combination of magnesium sulfate and biological organic source of sulfur in close-up diets could have positive effects on DMI and performance of Holstein dairy cows. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=organic%20sulfur" title="organic sulfur">organic sulfur</a>, <a href="https://publications.waset.org/abstracts/search?q=dairy%20cow" title=" dairy cow"> dairy cow</a>, <a href="https://publications.waset.org/abstracts/search?q=intake" title=" intake"> intake</a>, <a href="https://publications.waset.org/abstracts/search?q=blood%20metabolites" title=" blood metabolites"> blood metabolites</a> </p> <a href="https://publications.waset.org/abstracts/10692/biological-organic-or-inorganic-sulfur-sources-feeding-effects-on-intake-and-some-blood-metabolites-of-close-up-holstein-cows" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/10692.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">309</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">100</span> Quantifying Rumen Enteric Methane Production in Extensive Production Systems</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Washaya%20Soul">Washaya Soul</a>, <a href="https://publications.waset.org/abstracts/search?q=Mupangwa%20John"> Mupangwa John</a>, <a href="https://publications.waset.org/abstracts/search?q=Mapfumo%20Lizwell"> Mapfumo Lizwell</a>, <a href="https://publications.waset.org/abstracts/search?q=Muchenje%20Voster"> Muchenje Voster</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Ruminant animals contribute a considerable amount of methane to the atmosphere, which is a cause of concern for global warming. Two studies were conducted in beef and goats where the studies aimed to determine the enteric CH₄ levels from a herd of beef cows raised on semi-arid rangelands and to evaluate the effect of supplementing goats with forage legumes: Vigna unguiculata and Lablab purpureus on enteric methane production. A total of 24 cows were selected from Boran and Nguni cows (n = 12 per breed) from two different farms; parity (P1 – P4) and season (dry vs. wet) were considered predictor variables in the first experiment. Eighteen goats (weaners, 9 males, 9 females) were used, in which sex and forage species were predictor variables in the second experiment. Three treatment diets were used in goats. Methane was measured using a Laser methane detector [LMD] for six consecutive days and repeated once after every three months in beef cows and once every week for 6 weeks in goats during the post-adaptation period. Parity and breed had no effects on CH₄ production in beef cows; however, season significantly influenced CH₄ outputs. Methane production was higher (P<0.05) in the dry compared to the wet season, 31.1CH₄/DMI(g/kg) and 28.8 CH₄/DMI(g/kg) for the dry and wet seasons, respectively. In goats, forage species and sex of the animal affected enteric methane production (P<0.05). Animals produce more gas when ruminating than feeding or just standing for all treatments. The control treatment exhibited higher (P<0.05) methane emissions per kg of DMI. Male goats produced more methane compared to females (17.40L/day; 12.46 g/kg DMI and 0.126g/day) versus (15.47L/day, 12.28 g/kg DMI, 0.0109g/day) respectively. It was concluded that cows produce more CH₄/DMI during the dry season, while forage legumes reduce enteric methane production in goats, and male goats produce more gas compared to females. It is recommended to introduce forage legumes, particularly during the dry season, to reduce the amount of gas produced. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=beef%20cows" title="beef cows">beef cows</a>, <a href="https://publications.waset.org/abstracts/search?q=extensive%20grazing%20system" title=" extensive grazing system"> extensive grazing system</a>, <a href="https://publications.waset.org/abstracts/search?q=forage%20legumes" title=" forage legumes"> forage legumes</a>, <a href="https://publications.waset.org/abstracts/search?q=greenhouse%20gases" title=" greenhouse gases"> greenhouse gases</a>, <a href="https://publications.waset.org/abstracts/search?q=goats%20Laser%20methane%20detector." title=" goats Laser methane detector."> goats Laser methane detector.</a> </p> <a href="https://publications.waset.org/abstracts/163252/quantifying-rumen-enteric-methane-production-in-extensive-production-systems" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/163252.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">66</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">99</span> Profile of Cortisol in Bali's Crossbreed Cows for 120 Hours Shipping Using Traditional Vessel</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Hindar%20Panguji">Hindar Panguji</a>, <a href="https://publications.waset.org/abstracts/search?q=Nichlah%20%20Rifqiyah"> Nichlah Rifqiyah</a>, <a href="https://publications.waset.org/abstracts/search?q=Irkham%20Widiono"> Irkham Widiono</a>, <a href="https://publications.waset.org/abstracts/search?q=Pudji%20Astuti"> Pudji Astuti</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Many transportations of livestock in Indonesia is still managed traditionally. Transportation involves several things that may cause stress, from a certain treatment or other factors, either externally or internally, that act as stressors. This study aimed to determine the profile of cortisol and IL-6 in female Bali breeding cattle transported for 120 hours using 100 GT traditional vessels with two floors and a capacity of 300-400 heads. Before transportation, all of the animals have got the vaccination. Blood samples from thirty cows were taken before transportation, during loading, during docking, and after transportation. ELISA method was used to analyze the concentration of cortisol and IL6. The averages of cortisol concentration before transportation, during loading, docking, and after transportation were 78.21±27.96 ng/mL, 90.78±30.91 ng/mL, 69.90±53.92 ng/mL and 69.34±32.03 ng/mL respectively. The average concentration of IL-6 before, during, docking and after transportation were 259.86±70.16 pg/mL, 315.41±64.21 pg/mL, 410.13±247.43 pg/mL dan 424.81±98.86 pg/mL. It was concluded there were no differences in cortisol concentrations and level of IL6 of each cow at different stages of transportation (p > 0.05) It would be possible that vaccination could reduce the fluctuation of cortisol. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=shipping" title="shipping">shipping</a>, <a href="https://publications.waset.org/abstracts/search?q=Bali%27s%20breed%20cows" title=" Bali's breed cows"> Bali's breed cows</a>, <a href="https://publications.waset.org/abstracts/search?q=vessel" title=" vessel"> vessel</a>, <a href="https://publications.waset.org/abstracts/search?q=cortisol" title=" cortisol"> cortisol</a>, <a href="https://publications.waset.org/abstracts/search?q=IL6" title=" IL6"> IL6</a> </p> <a href="https://publications.waset.org/abstracts/73709/profile-of-cortisol-in-balis-crossbreed-cows-for-120-hours-shipping-using-traditional-vessel" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/73709.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">223</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">98</span> Dietary Anion-Cation Balance of Grass and Net Acid-Base Excretion in Urine of Suckler Cows </h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=H.%20Scholz">H. Scholz</a>, <a href="https://publications.waset.org/abstracts/search?q=P.%20Kuehne"> P. Kuehne</a>, <a href="https://publications.waset.org/abstracts/search?q=G.%20Heckenberger"> G. Heckenberger</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Dietary Anion-Cation Balance (DCAB) in grazing systems under German conditions has a tendency to decrease from May until September and often are measured DCAB lower than 100 meq per kg dry matter. Lower DCAB in grass feeding system can change the metabolic status of suckler cows and often are results in acidotic metabolism. Measurement of acid-base excretion in dairy cows has been proved to a method to evaluate the acid-base status. The hypothesis was that metabolic imbalances could be identified by urine measurement in suckler cows. The farm study was conducted during the grazing seasons 2017 and 2018 and involved 7 suckler cow farms in Germany. Suckler cows were grazing during the whole time of the investigation and had no access to other feeding components. Cows had free access to water and salt block and free access to minerals (loose). The dry matter of the grass was determined at 60 °C and were then analysed for energy and nutrient content and for the Dietary Cation-Anion Balance (DCAB). Urine was collected in 50 ml-glasses and analysed for net acid-base excretion (NSBA) and the concentration of creatinine and urea in the laboratory. Statistical analysis took place with ANOVA with fixed effects of farms (1-7), month (May until September), and number of lactations (1, 2, and ≥ 3 lactations) using SPSS Version 25.0 for windows. An alpha of 0.05 was used for all statistical tests. During the grazing periods of years 2017 and 2018, an average DCAB was observed in the grass of 167 meq per kg DM. A very high mean variation could be determined from -42 meq/kg to +439 meq/kg. Reference values in relation to DCAB were described between 150 meq and 400 meq per kg DM. It was found the high chlorine content with reduced potassium level led to this reduction in DCAB at the end of the grazing period. Between the DCAB of the grass and the NSBA in urine of suckler cows was a correlation according to PEARSON of r = 0.478 (p ≤ 0.001) or after SPEARMAN of r = 0.601 (p ≤ 0.001) observed. For the control of urine values of grazing suckler cows, the wide spread of the values poses a challenge of the interpretation, especially since the DCAB is unknown. The influence of several feeding components such as chlorine, sulfur, potassium, and sodium (ions for the DCAB) and dry matter feed intake during the grazing period of suckler cows should be taken into account in further research. The results obtained show that up a decrease in the DCAB is related to a decrease in NSBA in urine of suckler cows. Monitoring of metabolic disturbances should include analysis of urine, blood, milk, and ruminal fluid. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=dietary%20anion-cation%20balance" title="dietary anion-cation balance">dietary anion-cation balance</a>, <a href="https://publications.waset.org/abstracts/search?q=DCAB" title=" DCAB"> DCAB</a>, <a href="https://publications.waset.org/abstracts/search?q=net%20acid-base%20excretion" title=" net acid-base excretion"> net acid-base excretion</a>, <a href="https://publications.waset.org/abstracts/search?q=NSBA" title=" NSBA"> NSBA</a>, <a href="https://publications.waset.org/abstracts/search?q=suckler%20cow" title=" suckler cow"> suckler cow</a>, <a href="https://publications.waset.org/abstracts/search?q=grazing%20period" title=" grazing period"> grazing period</a> </p> <a href="https://publications.waset.org/abstracts/123263/dietary-anion-cation-balance-of-grass-and-net-acid-base-excretion-in-urine-of-suckler-cows" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/123263.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">151</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">97</span> Influence of Dairy Cows Food on Uncooked Pressed Dough Cheese "Edam" Quality</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Nougha%20Meriem">Nougha Meriem</a>, <a href="https://publications.waset.org/abstracts/search?q=Sadouki%20Mohammed"> Sadouki Mohammed</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Cheese quality is an important manufacturing requirement. It deals with traceability, from the dairy cows feed to the storage location. In this study, we have seen the impact of distributing two different types of green feed (purple clover VS alfalfa), in a ration composed of oat hay, silage of corn and concentrated feed, in equal quantities, on resulting milk destined for an Edam manufacturing. It reveals that alfalfa allows a high production of milk, comparatively to purple clover. However, this latter allows a high quality of milk, in point of view physico-chemical properties, especially regarding proteins and fat yields, two essential factors affecting Edam quality. The obtained results indicated that milk allowed by purple clover shows a best physico-chemical quality beside alfalfa, for it use in Edam manufacturing according to the values recommended by standardized dairies. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=dairy%20cows" title="dairy cows">dairy cows</a>, <a href="https://publications.waset.org/abstracts/search?q=Edam" title=" Edam"> Edam</a>, <a href="https://publications.waset.org/abstracts/search?q=food" title=" food"> food</a>, <a href="https://publications.waset.org/abstracts/search?q=quality" title=" quality"> quality</a> </p> <a href="https://publications.waset.org/abstracts/23158/influence-of-dairy-cows-food-on-uncooked-pressed-dough-cheese-edam-quality" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/23158.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">321</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">96</span> Effects of Maternal Nutrition at Different Stages of Pregnancy in Bali Cows on Growth Performance of the Offspring to Weaning</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=D.%20P.%20Rahardja">D. P. Rahardja</a>, <a href="https://publications.waset.org/abstracts/search?q=A.%20L.%20Toleng"> A. L. Toleng</a>, <a href="https://publications.waset.org/abstracts/search?q=M.%20Yusuf"> M. Yusuf </a> </p> <p class="card-text"><strong>Abstract:</strong></p> The objective of this study was to investigate the life-long effect of in utero nutrition fed at different stages of pregnancy in Bali cows (n = 40): (U1) without in utero nutrition (0 – parturition, negative control); (U2) 0 – 90 d of gestation; (U3) 90 - 180 d of gestation; (U4) 180 d – parturition; and (U5) in utero nutrition along gestation period (0 d to parturition – positive control) on the growth performance of the offspring to weaning age. The results indicated that effect of maternal nutrition on male and female offspring were particularly indicated by the growth performance of both the male and female offspring from birth to weaning. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=Bali%20cows" title="Bali cows">Bali cows</a>, <a href="https://publications.waset.org/abstracts/search?q=birth%20weight" title=" birth weight"> birth weight</a>, <a href="https://publications.waset.org/abstracts/search?q=maternal%20nutrition" title=" maternal nutrition"> maternal nutrition</a>, <a href="https://publications.waset.org/abstracts/search?q=pre-weaning%20daily%20gain" title=" pre-weaning daily gain"> pre-weaning daily gain</a>, <a href="https://publications.waset.org/abstracts/search?q=weaning%20weight" title=" weaning weight "> weaning weight </a> </p> <a href="https://publications.waset.org/abstracts/8557/effects-of-maternal-nutrition-at-different-stages-of-pregnancy-in-bali-cows-on-growth-performance-of-the-offspring-to-weaning" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/8557.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">312</span> </span> </div> </div> <ul class="pagination"> <li class="page-item disabled"><span class="page-link">&lsaquo;</span></li> <li class="page-item active"><span class="page-link">1</span></li> <li class="page-item"><a class="page-link" href="https://publications.waset.org/abstracts/search?q=cows&page=2">2</a></li> <li class="page-item"><a class="page-link" href="https://publications.waset.org/abstracts/search?q=cows&page=3">3</a></li> <li class="page-item"><a class="page-link" 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