饲养场
牛呼吸道疾病
食欲
动物科学
畜牧业
牧场
疾病
生物
环境卫生
医学
内分泌学
内科学
农业
免疫学
农学
生态学
作者
C. D. Reinhardt,Daniel U. Thomson
标识
DOI:10.1016/j.cvfa.2015.03.010
摘要
The stress of transition from pasture to the feedlot environment creates unique and variable nutritional challenges. The factors that are used to assign a risk category for the likelihood of developing bovine respiratory disease include time in transit from their origin, which is likely to be highly correlated with the amount of time away from quality feed and water. A high risk of developing respiratory disease is likely to correlate well with the animals' suppressed appetite immediately after arrival. This article discusses 2 distinctive categories of feeder animals (high-risk calves and yearlings) and their nutritional needs.
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