estrus cycle meaning in Chinese

动情周期
发情周期

A cow's estrus cycle averages 21 days .
母牛的发情周期平均为21天。
In the present study , in order to investigate the effects of endogenous estrogen on the daergic terminals in amy and the daergic neurons in midbrain , fast cyclic voltammetry ( fcv ) was used to examine da release evoked by electrical stimulation from amy of female rats in different phases of estrus cycle , ovx rats and male rats . and tyrosine hydroxylase ( th ) immunohistochemi stry was employed to measure the numbers of daergic neurons of ventral tegmental area ( vta ) and substantia nigra ( snc ) in the rats
因此，为进一步探讨大鼠内源性雌激素水平的变化对amyda能神经系统及中脑da能神经元的影响，本工作应用快速周期伏安法( fcv )在体监测了处于动情周期各期雌鼠、 ovx鼠和雄鼠经电刺激诱发的amyda释放，并应用酪氨酸羟化酶( th )免疫组化方法测定了以上各组大鼠腹侧背盖区( vta ) 、黑质( snc )的th阳性神经元数目。