干奶期热应激对奶牛新生犊牛机体健康及头胎母牛繁殖与产奶性能的影响

Effects of Heat Stress during the Dry Period of Dairy Cows on Body Health of Newborn Calves, Fertility and Milk Production of First Lactation Cows

干奶期是奶牛生产中的关键阶段,该时期热应激可影响奶牛新生犊牛的机体健康及育成后头胎母牛的生产性能。本文围绕新生犊牛生长、免疫、糖代谢及头胎母牛繁殖与产奶性能等5个方面,综述了干奶期热应激对奶牛新生犊牛机体健康及头胎母牛繁殖与产奶性能的影响,旨在为热应激干奶牛的管理提供指导,最终为奶牛场高效生产管理提供理论依据。

The dry period is a critical time in the production cycle of dairy cows. Heat stress during the dry period could prevent the body health and production performance of the offspring. Thus, the effects of heat stress during the dry period of dairy cows on body health of newborn calves, fertility and milk production of first lactation cows were summarized in this review, based on the calves growth, immunity, glycometabolism, fertility and milk production of first lactation cows. The main purpose of this paper is to provide guidance for management of dry cows under heat stress, and to provide theoretical basis for effective management of dairy farms.