The intestinal barrier is the largest interface between animal and the external environment,which includes physical barrier,chemical barrier,immune barrier and microorganism barrier. The integrity of intestinal barrier has an important role in preserving health. Many kinds of stress can influence the integrity. The author reviewed the effect of prolonged exercise,restraint stress and heat stress on the intestinal barrier,and the measures to solve it.%动物的胃肠道是机体和外部环境之间最大的屏障,由物理屏障、化学屏障、免疫屏障和微生物屏障组成.胃肠道屏障的完整性对动物的健康起着至关重要的作用,许多类型的应激都会影响胃肠道屏障的完整性.作者主要介绍了长时间运动、束缚应激和热应激对胃肠道屏障功能的影响及其应对措施.
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