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47 results for “Calves”
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Research ArticleOpen accessEvery word in the titleDiarrhea in Pre-Weaned Calves: Relative Risk Rates for Morbidity and Mortality in 13 Commercial Farms of Hot Arid ZoneM. A. Razzaque, T. Al-Mutawa, S. A. MohammedProblem statement: In many hot arid countries, pregnant Holstein Friesian heifers are imported for herd replacement. The calves obtained from exotic cows are exposed to adverse climate in feedlot system resulting in very high morbidity and mortality rates. Diarrhea, dehydration and deaths are causing a major loss to the producers. This study examines the Risk Rates (RR) for morbidity and … …American Journal of Animal and Veterinary Sciences, Vol. 5, Issue 3 · 30 Sep 2010 · 7,616 accessesView PDFCite
Research ArticleOpen accessEvery word in the titleEffect of Calcium Supplementation on Growth, Nutrient Digestibility and Fecal Lactobacilli in Dairy CalvesC. Yuangklang, C. Wachirapakorn, H.E. Mohamed et al.Problem statement: Based on earlier studies in veal calves and rats, the hypothesis tested was that high calcium intakes by ruminating dairy calves reduce fat digestibility, but do not affect growth performance due to enhanced colonization of the intestine with lactobacilli. Approach: In dairy calves that were fed on a combination of milk replacer, concentrate on grass hay, the effects … …American Journal of Animal and Veterinary Sciences, Vol. 5, Issue 2 · 30 Jun 2010 · 8,247 accessesView PDFCite
Research ArticleOpen accessEvery word in the titlePerformance of Pre-Weaned Dairy Calves under Hot Arid Environment: Effects of Immunoglobulins and Age on Diseases and MortalityM. A. Razzaque, T. Al-Mutawa, S. Abbas, M. BedairProblem statement: A high mortality rate (crude mortality 43.6%) of pre-weaned dairy calves resulted in unavailability of replacement heifers in Kuwait. Dairy producers resorted to import pregnant heifers for herd replacement. This study was undertaken to investigate the effects of dam vaccination and age, serum Immunoglobulin (Ig) on disease syndromes and mortality in pre-weaned calves. Approach: Late pregnant Holstein Friesian … …American Journal of Applied Sciences, Vol. 6, Issue 11 · 30 Nov 2009 · 7,555 accessesView PDFCite
Research ArticleOpen accessEvery word in the titleEffect of Cassava (Manihot esculenta) Foliage Supplementation to Calves on the Viability and Egg Count of Haemonchus contortus NematodesJuan López, Esteban Machín, Arturo Zentella et al.Thirty early-weaned 5±3 month-old calves with an average body weight of 96±23 kg were used; 24 were artificially infested with 90 larvae (L3), of H. contortus per kilogram body weight. Calves grazed on African Star Grass (Cynodon plectostachyus) from 0600 to 1300 hours. Grazing was supplemented with lucerne hay (Medicago sativa) or cassava foliage (Manihot esculenta), and 500 g-1 head-1 … …American Journal of Animal and Veterinary Sciences, Vol. 2, Issue 4 · 31 Dec 2007 · 7,065 accessesView PDFCite
Research ArticleOpen accessEvery word in the titleThe Effect of Early Weaning on Performance, Health Parameters, and Carcass Traits of Bonsmara Bull Calves Under Feedlot ConditionsKgotso Patrick Matli, Thobela Louis Tyasi, Pieter FourieA feedlot is an intensive farming system used for finishing livestock. This study analyzed the performance, health, and carcass traits of Early-Weaned Calves (EWC) and Traditionally-Weaned Calves (TWC). A total of 285 Bonsmara bull calves were grouped into two weaning strategies, with 136 EWC (255±27.30 kg) and 149 TWC (308±24.60 kg). Backgrounding was followed by a finishing phase, with a … …American Journal of Animal and Veterinary Sciences, Vol. 21, Issue 2 · 14 Aug 2026 · 1,233 accessesView PDFCite
Research ArticleOpen accessEvery word in the titleThe Effect of the Saccharomyces Boulardii Supplement in Combined Feed on the Health, Growth, and Fecal Microbiota of Growing CalvesDulat Zhalelov, Serkan Ozkaya, Mehmet Gündoğdu et al.The aim of this study was to study the effect of a specific strain of yeast, Saccharomyces cerevisiae boulardii T8-3C (SCB), on the growth, health, and bacterial profile of calves' feces. A total of 12 animals were included in the experiment on a commercial calf farm for a total of 90 days. The calves were fed hay and alfalfa twice … …OnLine Journal of Biological Sciences, Vol. 25, Issue 3 · 27 Nov 2025 · 2,309 accessesView PDFCite
Research ArticleOpen accessEvery word in the titleInfluence of Various Schemes of Feeding Calves with Whole Milk on their Growth Indicators and Physiological StateK. K. Akhazhanov, T. K. Bekseitov, J. J. Uakhitov et al.In dairy farming, special requirements are imposed on the feeding of replacement young animals. The period when young animals receive colostrum and milk is considered important for raising viable and productive animals. During this time, a large amount of whole milk is consumed by calves. In this connection, the purpose of our study was to compare the effect of various … …American Journal of Animal and Veterinary Sciences, Vol. 18, Issue 3 · 16 Aug 2023 · 5,361 accessesView PDFCite
Research ArticleOpen accessEvery word in the titleEffect of Semen on the Embryo Productivity of Donor Cows and the Development of Transplant CalvesBolatbek Ateikhan, Toktar Karibaevich Bexeitov, Talgat Kozybakovich Seiteuov et al.In animal husbandry, more heifers are requiredfor the expanded reproduction of the herd or milk, and more bulls are needed toobtain meat. One of the effective ways to artificially regulate the secondary(at birth) sex ratio is the technology of sexed semen. In this connection, thepurpose of this study was to study the effect of sexed and native semen on theembryonic … …OnLine Journal of Biological Sciences, Vol. 22, Issue 3 · 6 Sep 2022 · 5,430 accessesView PDFCite
Research ArticleOpen accessEvery word in the titleEvaluation of Different Oral Rehydration Solutions for Diarrheic Dairy CalvesEvangelina Miqueo, Jackeline Thais da Silva, Fernanda Lavínia Moura Silva et al.Regardless of the causative agent, diarrhea results in large loss of water and electrolytes, which leads to reduced performance and mortality. The aim of this study was to evaluate oral rehydration solutions in order to determine the most effective in restoring electrolytes and water while maintaining animal performance. Forty two calves (14 per treatment) were distributed in one of three … …American Journal of Animal and Veterinary Sciences, Vol. 13, Issue 4 · 26 Nov 2018 · 8,385 accessesView PDFCite
Research ArticleOpen accessEvery word in the titleInclusion of Molasses or Glucose Syrup in Starter Concentrate for Dairy Calves: Effects on Diarrheic CalvesMarcelo Cezar Soares, Carlos Eduardo Oltramari, Marília Ribeiro de Paula et al.Severity of metabolic acidosis and other clinical signs in diarrheic dairy calves fed a starter concentrate containing molasses or glucose syrup as a replacement for corn were evaluated. Thirty-two calves were blocked according to birth weight and were divided into four treatments according to starter concentrate composition: (1) Control, starter concentrate based on corn; (2) 5% of molasses as a … …American Journal of Animal and Veterinary Sciences, Vol. 11, Issue 1 · 28 Mar 2016 · 7,254 accessesView PDFCite