膳食营养素及饲料添加剂对猪肠道微生物群的影响研究进展

Research progress on effect of dietary nutrients and feed additives on intestinal microflora of pigs

肠道微生物群有助于宿主肠道发挥多种生理功能,对改善猪的肠道健康、提高猪的生产性能具有重要作用。肠道微生物具有很强的可塑性,易受饮食、抗生素的摄入、病原体感染、宿主状况、外界环境等因素的影响。饮食的变化是影响肠道微生物群的主要因素。很多营养素和饲料添加剂具有调控猪肠道微生物的结构组成、促进肠道健康的作用。调节日粮营养素水平、补充饲料添加剂是猪生产中常用干预肠道微生物方法之一。文章综述膳食营养素和饲料添加剂(益生菌、益生元、酶制剂和植物生物素等)对猪肠道微生物群的影响,为其在猪生产中的应用提供参考。

The gut microbiota helps host gut to perform a variety of physiological functions,which plays an important role in improving the intestinal health and performance of pigs.Intestinal microbiota has strong plasticity,which is readily changeable by diet,ingestion of antibiotics,infection by pathogens and other host-and environmental-dependent events.The change of diet is the main factor affecting intestinal microbiota.Many nutrients and feed additives can regulate the structural composition of intestinal microbiota,promoting intestinal health in pigs.Adjusting dietary nutrient level and supplementing feed additives is one of the commonly used methods to intervene intestinal microorganisms in pig production.The paper reviews the effect of dietary nutrients and some feed additives(probiotics,prebiotics,enzymes and phytobiotics)on intestinal microbiota in pigs,to provide reference for its application in pig production.