发情期和妊娠早期孕酮对奶牛繁殖的影响及调控方法

Effects and Regulation Methods of Progesterone on Reproduction in Dairy Cows During Estrus and Early Pregnancy

奶牛发情期和妊娠早期体内孕酮水平不足是导致其繁殖效率低的重要因素之一。较高的孕酮水平能够提高卵母细胞质量、调节激素分泌、调控子宫内环境以及促进胚胎发育,从而提升奶牛的繁殖效率。因此,发情期和妊娠早期孕酮水平与奶牛繁殖效率之间的关系受到广泛了关注。本文总结了孕酮对奶牛发情期及妊娠早期不同阶段的影响,并探讨了在这些关键时期提高孕酮水平的方法,以期为奶牛养殖产业提供生产指导,助力奶牛繁育工作提质增效。

Insufficient progesterone levels during estrus and early pregnancy in dairy cows is one of significant factors contributing to low reproductive efficiency.Elevated progesterone levels have been shown to enhance oocyte quality,regulate hormone secretion,control the uterine environment,and promote embryonic development,thereby improving reproductive efficiency in dairy cows.Consequently,the relationship between progesterone levels during estrus and early pregnancy and reproductive efficiency in dairy cows has attracted significant attention.This paper summarizes the effects of progesterone on various stages of estrus and early pregnancy in dairy cows and explores methods to enhance progesterone levels during these critical periods.The objective is to provide production guidance for dairy farming industry and to improve the quality and efficiency of dairy cow breeding.