发情

They transit estrous information mainly by making courting sound and spreading special estrum scent.

大熊猫主要通过求偶叫声和气味住处传递求偶信息。

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作用。

The sows of natural oestrus ovulated more swiftly than the superovulation, and the embryo quality of nature was better.

超数影响胚胎质，自然母较超数母较快，且胚胎质较好。

The grass grows and the horse is ruttish, how reasonable the natural is in turn. The copulation in mule market has become the common thing.

草长马，这种自然界交替是多么合乎理。骡马市上交配也就成了理之事。