estrus

1.Anestrus (absence of estrus ) is not a disease but a sign of a variety of conditions.

乏情不是一种疾病，而是一种多方面的体态迹象。

2.The result suggested that OCE was able to indue luteolysis and estrus in infertile cows with PCL.

这些结果表明，复方缩宫素具有溶解黄体和诱导发情的作用。