Combined use of milk progesterone profiles, clinical examination and oestrus observation for the study of fertility in the post-partum period of dairy cows.
作者信息
van de Wiel D F, Kalis C H, Shah S N
出版信息
Br Vet J. 1979 Nov-Dec;135(6):568-77. doi: 10.1016/s0007-1935(17)30011-8.
PMID:534942
Abstract
摘要
Zotero 插件