热应激对反刍动物瘤胃功能及潜在耐热标志物的影响

Effects of Heat Stress on Rumen Function and Potential Heat Tolerance Markers in Ruminants

热应激是影响动物健康和生产的重要因素之一,瘤胃功能与反刍动物的营养吸收、机体健康和生产性能等密切相关。热应激容易引起瘤胃微生物结构、瘤胃上皮结构及屏障功能发生改变,进而影响反刍动物的瘤胃功能。有研究表明,瘤胃内某些特定瘤胃微生物、代谢产物、瘤胃上皮蛋白表达等可作为评价反刍动物热应激大小的潜在标志物。通过筛选瘤胃潜在耐热标志物,准确判断瘤胃所受热应激程度的大小,有助于更好地了解反刍动物的耐热机制,对研究瘤胃微生物结构、瘤胃代谢及瘤胃功能也具有重要的意义。作者主要综述了热应激对瘤胃微生物结构、瘤胃功能以及瘤胃潜在耐热标志物的影响,以期为热应激条件下的家畜健康生产提供理论依据和指导。

Heat stress is one of the important factors affecting animal health and production,and rumen function is closely related to nutrient absorption,body health and production performance of ruminants.Heat stress can easily cause changes in rumen microbial structure,rumen epithelial structure and barrier function,which in turn affects rumen function in ruminants.Current studies have shown that some specific rumen microorganisms,metabolites,and rumen epithelial protein expression in the rumen can be used as potential markers to evaluate the magnitude of heat stress in ruminants.By screening the potential heat tolerance markers of rumen and accurately judging the degree of heat stress in the rumen,it is helpful to better understand the mechanism of heat resistance in ruminants,and is also of great significance for the study of rumen microbial structure,rumen metabolism and rumen function.Therefore,the authors mainly review the effects of heat stress on rumen microbial structure,rumen function and potential heat tolerance markers of rumen,so as to provide theoretical basis and guidance for practical production and application under heat stress conditions.