饲料研究2025，Vol.48Issue(5)：169-174,6.DOI:10.13557/j.cnki.issn1002-2813.2025.05.030
热应激对奶牛的损伤机制及调控措施的研究进展
Research progress on damage mechanism and regulatory measures of heat stress on dairy cows
摘要
Abstract
Hot weather is a major challenge in dairy farming.Heat stress can reduce milk yield,milk protein and unsaturated fatty acids,affect oocyte and sperm cell development,reduce pregnancy rate,damage embryo and calf development,weaken the immune function of dairy cows and cause inflammation of uterus and mammary gland,increase the level of oxidative stress in dairy cows,reduce antioxidant performance and metabolic function,reduced feed intake in dairy cows,resulting in limited rumen function,blocked transport of short-chain fatty acids,and increased fecal E.coli.The serious damage caused by heat stress to dairy cows can be effectively mitigated by feeding management measures such as changing feeding time,increasing drinking water equipment,adding fans,and adding feed additives such as probiotics,amino acids,plant extracts,vitamins,minerals and fatty acids in diets,so as to improve the health level and production performance of dairy cows.This study reviewed the heat stress indexes of dairy cows,the damage mechanism of heat stress on production performance,reproductive performance,immune and antioxidant performance,digestion and absorption function of dairy cows,and effective regulation measures,so as to provide reference for effectively coping with heat stress in summer dairy cattle breeding.关键词
热应激/奶牛/饲料添加剂/损伤机制/调控措施Key words
heat stress/dairy cow/feed additives/damage mechanism/regulatory measures分类
农业科技引用本文复制引用
付建中,陈玉武,庄佳荣,提金凤..热应激对奶牛的损伤机制及调控措施的研究进展[J].饲料研究,2025,48(5):169-174,6.基金项目
山东省高等学校科技发展计划项目(项目编号:J17KB104) （项目编号:J17KB104）
潍坊市重点实验室项目(项目编号:潍科字202141号) （项目编号:潍科字202141号）
