Anestrus: No sexual activity takes place. Anestrus lasts between three and four months. 休情期:没有性活跃发生的时期。通常持续三到四个月。
anestrus
[ noun ] applies to nonhuman mammals: a state or interval of sexual inactivity between two periods of estrus <noun.state>
anestrus \anestrus\ n. 1. 1 a state or interval of sexual inactivity between two periods of estrus; -- applies to nonhuman mammals. [Also spelled {anoestrus}.] [WordNet 1.5]