综述 Review

胃肠道脂多糖对奶牛健康及生产性能的影响及其防治措施

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  • 1. 中国农业科学院, 北京畜牧兽医研究所, 动物营养学国家重点实验室, 北京 100193;
    2. 北京农学院, 奶牛营养学北京市重点实验室, 北京 102206
唐志文(1992—),男,山西朔州人,硕士研究生,从事反刍动物营养与饲料研究。E-mail:tzwcaas@163.com

收稿日期: 2017-02-01

  网络出版日期: 2017-08-02

基金资助

国家"十三五"重点研发课题(2016YFD0700205,2016YFD0700201)

Effects of Gastrointestinal Endotoxin on Health and Production Performance of Dairy Cows and Prevention Methods

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  • 1. State Key laboratory of Animal Nutrition, Institute of Animal Science, Chinese Academy of Agricultural Sciences, Beijing 100193, China;
    2. Beijing Key Laboratory for Dairy Cow Nutrition, Beijing University of Agriculture, Beijing 102206, China

Received date: 2017-02-01

  Online published: 2017-08-02

摘要

脂多糖是革兰氏阴性细菌细胞外膜的主要组成成分,奶牛饲粮中精料比例过高或有效中性洗涤纤维含量过低均会显著增加胃肠道脂多糖含量。脂多糖可与pH等胃肠道环境因素共同作用,损伤胃肠道上皮,一旦胃肠道上皮受损,脂多糖便会易位进入机体外周循环系统,导致奶牛机体发生一系列免疫代谢反应,进而影响奶牛健康及生产性能。本文从脂多糖的结构及来源、胃肠道脂多糖对奶牛健康及生产性能的影响及其缓解方法方面进行综述,以期为现代化奶牛生产中保障奶牛健康、提高奶牛生产性能提供理论依据。

本文引用格式

唐志文, 蒋林树, 杨亮, 王坤, 熊本海 . 胃肠道脂多糖对奶牛健康及生产性能的影响及其防治措施[J]. 动物营养学报, 2017 , 29(8) : 2650 -2656 . DOI: 10.3969/j.issn.1006-267x.2017.08.006

Abstract

Endotoxin is a composition of cell outer membrane of Gram negative bacteria, feeding high-concentrate or low-neutral detergent fibre diets can result in a remarkably increased content of gastrointestinal endotoxin. Gastrointestinal environmental factor such as endotoxin and pH can cooperate to damage epithelial cells, then endotoxin will translocate from the gastrointestinal tract into peripheral circulation which will cause a series of immune metabolic changes, and affect the health and production performance of cows. This article reviewed structure and source of endotoxin, effects of gastrointestinal endotoxin on health and production performance of dairy cows and the prevention methods, in purpose to provide references for ensure health and enhance production performance of cows.

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