estrus

In cows and many other animals, the female is in estrus just before ovulation.

母牛和许多其他的雌性动物都正好是在排卵前发情.

During estrus, the female is fertile and will accept a male.

在发情期, 母犬可以接受交配并且具有生育能力.

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.

The next estrus was delayed.

下一次发情推迟了.

Three Methods: Were applied to research the estrus and ovulation induction of sows.

采用三种处理方法对母猪进行了诱导发情及排卵研究.

A cow's estrus cycle averages 21 days.

母牛的发情周期平均为21天.

Estrus synchronization is one of the reproductive biotechnologies, and has been applied extensively to animal husbandry.

同期发情是动物繁殖生物技术之一, 已广泛应用于畜牧生产中.

Estrus recurs at intervals of approximately six months until late in life.

从一个发情期至第二个发情期之间约为六个月.

Numbers of sows were estrus within 70 days after weaning.

离乳后70日以内发情之母猪头数.