奶牛乳汁中孕酮的浓度值与受胎率之间关系的研究

晋鹏,乌志平

The Relationship between Milk Progesterone Concentration and Conception Rate for Cows

畜牧与饲料科学 . 2001, (5): 7 -7 . DOI: 10.12160/j.issn.1672-5190.2001.05.003