Intestinal health is critically important for the digestion and absorption of nutrients and thus is a key factor in determining performance. Intestinal health issues are very common in high performing poultry lines due to the high feed intake, which puts pressure on the physiology of the digestive system. Excess nutrients which are not digested and absorbed in the small intestine may trigger dysbiosis, i.e. a shift in the microbiota composition in the intestinal tract. Dysbiosis as well as other stressors elicit an inflammatory response and loss of integrity of the tight junctions between the epithelial cells, leading to gut leakage. In this paper, key factors determining intestinal health and the most important nutritional tools which are available to support intestinal health are reviewed.

肠道健康对于营养物质的消化和吸收至关重要，因此是决定运动表现的关键因素。由于高采食量给消化系统的生理学带来压力，因此肠道健康问题在高性能家禽系列中非常常见。未在小肠中消化和吸收的过量营养素可能会引发生态失调，即肠道微生物群组成发生变化。生态失调以及其他应激源会引起炎症反应和上皮细胞之间紧密连接的完整性丧失，从而导致肠漏。本文综述了决定肠道健康的关键因素以及支持肠道健康的最重要的营养工具。