NEB delays the time of first ovulation through inhibition of LH pulse frequency and low levels of blood glucose, insulin and insulin-like growth factor-I (IGF-I).

• NEB可通过抑制LH脉冲频率、降低血浆葡萄糖、胰岛素和胰岛素样生长-1(IGF-I)因子浓度,从而造成奶牛分娩后首次排卵间隔延长;