摘要
猪只日粮中添加纤维会在一定程度上降低营养物质的吸收效率,但是饲粮纤维可在猪只肠道后端进行一定程度的发酵,并产生大量的挥发性脂肪酸,具备了一定的营养作用。同时,也因此而降低猪只肠道pH,影响肠道菌群丰度及菌群结构。通过改变纤维日粮的组成来影响肠道中的菌群,发挥肠道上皮屏障功能,并且通过调节肠道微生物的组成来维持肠道微生物生态的稳定,是猪只肠道健康的关键控制点。肠道菌群与宿主相互协同,构成了肠道微生态系统,能够促进猪只对营养物质吸收利用。文章综述了不同纤维源日粮对猪只肠道菌群的影响,为养猪生产实践中应用不同纤维源提供一定理论依据。
Adding fiber to diet can reduce the absorption efficiency of nutrients in some degree,However,the fiber can ferment in the hindgut of pigs to produce a large number of volatile fatty acids.It also can decrease the intestinal pH value and affect the abundance and structure of intestinal fl ora.Dietary compositions have a signifi cant effect on intestinal fl ora,which can promote the function of intestinal epithelial barrier,so it is a key control point for intestinal health of pigs.The ecosystems formed by co-existence between intestinal fl ora and the host play an important role in promoting food digestion.This paper discussed the effects of different fi ber sources on intestinal microbes.It provides a theoretical basis for pig production of different fi ber sources.
作者
王艳玲
赵传芳
姜海龙
Yanling Wang;Chuanfang Zhao;Hailong Jiang(Department of Animal Science and Technology,Changchun,Jilin 130118,China;Jilin Agricultural University,Jilin Provincial Swine Industry Technical Innovation Centre,Changchun,Jilin 130118,China;Institute of Special Animal and Plant Sciences,Chinese Academy of Agricultural Sciences,Changchun,Jilin 130112,China)
出处
《猪业科学》
2021年第2期70-74,共5页
Swine Industry Science
基金
国家重点研发技术项目(2017YFD0502001)。
关键词
豌豆纤维
苜蓿草粉
甜菜渣
麦麸
肠道菌群
猪
Pea Fiber
Alfalfa meal
Beet residue
Wheat bran
Intestinal fl ora
Pig