搜索结果: 1-1 共查到“农学 Trace Element”相关记录1条 . 查询时间(0.062 秒)
Effect on Milking Performance of Vitamin-Trace Element Supplements to Early Lactation Italian Brown Cows Grazing Ryegrass (Lolium multiflorum) Pasture
Cow Pasture Vitamin Trace Element Milk Yield
2016/5/6
The objective of this study was to examine the effects of concentrates containing different levels of a vitamin-trace elements premix on milk yield and composition of dairy cows. The trial, which last...