proestrus

proestrus

美 [pro?'estr?s] 　英 [pr??'estr?s]

• n.發情前期；動情前期

英漢解釋

n.	1. 發情前期 2. 動情前期

英英解釋

n.	1. the period in the estrus cycle immediately preceding estrus

例句

Proestrus lasts approximately nine days; the female, however, will not allow coitus at this time.

發情前期約持續九天，不過，這段時間，母犬并不與公犬交配。

Most dogs are first bred between the 10th and 14th day after the onset of proestrus.

一般，第一次交配發生在母犬進入發情期開始計算的第10-14天內。