日粮核苷酸对动物肠道健康和免疫功能的影响及其在养猪生产中的应用  

Effects of dietary nucleotides on gut health and immune function of animals and its application in pig production

作　　者：纪勇成 李佳颖[1] 谭成全 印遇龙[1,2] 邓近平 JI Yongcheng;LI Jiaying;TAN Chengquan;YIN Yulong;DENG Jinping(College of Animal Science,South China Agricultural University,Guangzhou,Guangdong Province 510642,China;Institute of Subtropical Agriculture,Chinese Academy of Sciences,Changsha,Hunan Province 410125,China)

机构地区：[1]华南农业大学动物科学学院,广东广州510642 [2]中国科学院亚热带农业生态研究所,湖南长沙410125

出　　处：《中国饲料》2019年第19期5-12,共8页China Feed

基　　金：十三五国家重点研发计划项目(2018YFD0500600);广东省自然科学基金项目(2017A030310398)

摘　　要：核苷酸作为营养素代谢补充剂在动物机体中发挥重要的生理生化作用。正常情况下,机体能通过内源途径从头合成核苷酸满足机体需要。然而,当动物处于快速生长或受到免疫应激、肠道损伤及氧化应激情况下,体内合成的核苷酸不能满足需要,需额外添加。本文结合国内外研究进展,从核苷酸的结构和来源及其消化、吸收和代谢入手,综述了日粮核苷酸对动物肠道健康、免疫功能的影响及其在养猪生产中的应用,旨在为日粮核苷酸在养猪生产中的应用提供理论指导。Nucleotides play an important physiological and biochemical role in the animal body as a nutrient metabolic supplement.Under normal circumstances, nucleotides can meet the needs of the body by denovo synthesis of that.However,when the animal is in the condition of rapid growth or subject to immune stress,intestinal injury and oxidative stress, in vivo synthesis of nucleotides can not meet the needs of the body.Therefore, it is necessary to add exogenous nucleotides.Referring to domestic and oversea research, this review summarized the structure and source of nucleotides and their digestion, absorption and metabolism.At the same time, the effects of dietary nucleotides on gut health and immune function of animals and its application in pig production were reviewed so as to provides theoretical guidance for the application of dietary nucleotides in pig production.

关 键 词：核苷酸 代谢 肠道 免疫 猪 

分 类 号：S816.7[农业科学—饲料科学]