国内外奶牛的胎衣不下的研究进展

National and International Development of Retention of the Afterbirth of the Cow

奶牛的胎衣不下 ,是严重影响奶牛经济效益的常见病 .本文从该病的病因。

Retention of the afterbirth of the cow is the common disease to seriously affect the economy mileage. In this paper, we report from the cause of the complaint, the pathological and its results in the economy loss and precautionary measure.