热应激是影响家禽生长和健康的重要因素之一.肠道不仅是家禽消化、吸收营养物质的位点,更是抵御外界病源微生物的第一道防线.热应激影响家禽肠道的结构,干扰肠道微生物平衡,影响肠道的免疫功能,导致肠黏膜完整性受损,增加细菌移位的几率,最终影响家禽的生长和健康.本文归纳总结了有关热应激影响家禽肠道结构方面的研究结果,并初步提出热应激影响家禽肠道结构的可能原因,为进一步阐明热应激对家禽肠道健康的影响提供基础.%Heat stress is an important factor that affects the growth and health of poultry. The intestinal tract is not only the site of digestion and absorption of nutrients by poultry,but also the first line of defense against mi?croorganisms from the outside world. Heat stress affects the intestinal structural of poultry,interferes the intesti?nal microbial balance,influences the intestinal immune function,damages to the integrity of intestinal mucosa, increases the chance of bacterial translocation, and finally affects the growth and health of poultry. This paper mainly reviewed the results of studies on the effects of heat stress on intestinal structure of poultry,and prelimi?narily proposed the possible causes of heat stress affected intestinal structure of poultry,to provide scientific ba?sis for understanding the effects of heat stress on intestinal health of poultry.
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