Beef derived from Holstein steers is a significant source of the U.S. beef supply. The nation’s 9.1 million dairy cows in 2003 were 22% of the U.S. cow herd (NASS, 2005). Given the typical breed distribution of dairy cows, calving interval, full-term pregnancy rate, peri-natal calf death loss (NAHMS, 2002), gender distribution, dairy beef placement (80%) and survival to market (94%), it can be ...

Fikre Lobago, 2007. Reproductive and Lactation Performance of Dairy Cattle in the Oromia Central Highlands of Ethiopia with Special Emphasis on the Pregnancy Period. Doctoral thesis. ISSN 1652-6880, ISBN 978-91-85913-20-6 This thesis presents studies of the reproductive and lactation performance of dairy cattle in the Oromia Central Highlands of Ethiopia, with particular emphasis on diagnosing ...

Social contact affects social development and response to novelty in dairy calves, but the age of introduction housing varies on-farm may have implications for behavioral grouping. The objective this experiment was evaluate effects early during approximately first 2 wk life on calf behavior performance responses following initial regrouping, followed by subsequent regrouping. At birth, calves w...

Calf diseases remain a challenge for dairy producers from both an economic and welfare perspective. Genetically selecting disease resistance in calves is promising approach that could contribute to sustainable farming. Genetic evaluations, however, require well-defined consistently recorded phenotypes be successful. Therefore, this study aimed understand the current state of calf recording on O...

Abstract A study was conducted to evaluate the effects of a live yeast supplement in preweaning and finishing diets Holstein bull calves on growth performance, carcass quality attributes physiochemical traits. bulls (n = 39) at 5 days age were randomly allocated one two treatment groups with 20 receiving no 19 supplement. The inclusion level pre-weaning diet 54 mg/calf/day added milk replacer. ...