瘤胃蛋白质营养调控  

The regulation of rumen protein nutrition

作　　者：方兴强 杨震国 FANG Xingqiang;YANG Zhenguo(Laboratory for Bio-feed and Molecular Nutrition,College of Animal Science and Technology,Southwest University,Chongqing 400715,China;Chongqing Key Laboratory of Forage&Herbivore,Chongqing Engineering Research Center for Herbivores Resource Protection and Utilization,Chongqing Herbivore Engineering Research Center,Chongqing 400715,China)

机构地区：[1]西南大学动物科技学院/生物饲料与分子营养实验室,重庆400715 [2]重庆市牧草与草食家畜重点实验室/重庆市草食动物资源保护与利用工程技术研究中心/重庆市高校草食动物工程研究中心,重庆400715

出　　处：《黑龙江畜牧兽医》2020年第17期37-40,44,共5页Heilongjiang Animal Science And veterinary Medicine

基　　金：国家重点研发计划项目(2018YFD0501004);中国科协优秀中外青年交流计划(2019年度)项目(〔2019〕293-98);中国博士后科学基金第64批面上项目(2018M640895);2019年重庆市留学人员回国创业创新支持计划项目(cx2019093);重庆市博士后科研项目(XmT2018061);重庆高校创新团队建设计划项目(CXTDG201602004)。

摘　　要：蛋白质是构成动物体组织和维持生命活动不可或缺的物质之一。饲料中的蛋白质在消化道内被分解成氨基酸和小肽,然后进入肠系膜静脉,汇入门静脉,经过肝脏的转化代谢后进入心脏,经血液循环运送至全身组织/器官并被利用。近年来,由于蛋白质饲料资源日益短缺,对于反刍动物而言,如何加强饲料蛋白质过瘤胃保护,提高饲料蛋白质利用效率变得尤为重要。文章主要从蛋白质的过瘤胃保护和反刍动物蛋白质营养调控两方面对反刍动物蛋白质营养研究新进展进行综述,旨在为后续相关研究提供有益的参考。Protein is one of the indispensable substances that constitutes animal tissues and maintain life activities. The protein in the feed is broken down into amino acids and small peptides in the digestive tract, then enters the mesenteric vein, merges into the portal vein, enters the heart after the transformation and metabolism of the liver, is transported to the whole body tissues and organs through the blood circulation and is utilized. In recent years, due to the growing shortage of protein feed resource, it is particularly important for ruminants to increase rumen-bypass protein and improve the efficiency of dietary protein utilization. In this paper, the new progress in ruminant protein nutrition research from the aspects of the protection of proteins in the rumen and the regulation of protein nutrition in ruminants, in order to provide beneficial references for the future studies of protein nutrition in ruminants.

关 键 词：反刍动物 蛋白质 过瘤胃保护 营养调控 消化 

分 类 号：S816.4[农业科学—饲料科学]