摘要
本文简述了维生素A、维生素D、维生素E和生物素对奶牛健康和生产性能的维持所起的作用 。
This paper briefly described that Vitamin A?D?E and biotin play an important role in mamtamable health and productive performance of dairy cattle , and feeding dose of reasonable Vitamins was deterised in it.
出处
《草食家畜》
2002年第3期38-38,40,共2页
Grass-Feeding Livestock
