4 articles for “pre-weaned calves”

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Research ArticleOpen accessPhrase 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 PDF Cite

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 PDF Cite

Research ArticleOpen accessEvery word in the titleEffect of Saccharomyces cerevisiae and Mannan-Oligosaccharides on Daily Weight Gain and Health of Pre-Weaned Holstein Calves in ChilePedro Melendez, Pablo Pinedo, Maria Paz Marin, Angelica AriasThe objective was to compare the effect of S. cerevisiae and mannan-oligosaccharides on Average Daily Gain (ADG), live weight and health of dairy calves in Chile. Calves were weighed at birth and randomly assigned to 3 groups: (i) Yeast (YS): 5 g/calf/day of a live yeast (n = 25); (ii) Mannan (MN): 3 g/calf/day of mannan-oligosaccharides (n = 25); (iii) … …American Journal of Animal and Veterinary Sciences, Vol. 13, Issue 1 · 1 Feb 2018 · 8,073 accessesView PDF Cite

Research ArticleOpen accessIn the abstractImproving Performance of Replacement Heifers in Hot Arid Environment Under Intensive ManagementM. A. Razzaque, S. A. Mohammed, T. Al- Mutawa, M. BedairProblem statement: Imported Holstein Friesian dairy cattle are exposed to hot arid climate in feedlot management in Kuwait. Desert climate is extreme reaching high 45-50°C in summer and low -4ºC in winter at day and night respectively. High calf mortality, poor reproduction and milk yields were main constraints to viable dairying. The objectives of this study were to assess the … …American Journal of Animal and Veterinary Sciences, Vol. 4, Issue 4 · 31 Dec 2009 · 6,983 accessesView PDF Cite