摘要
赖氨酸是最主要的限制性氨基酸之一。奶牛小肠吸收的氨基酸对于维持生长发育、繁殖和泌乳等生命活动而言极为重要。通常反刍动物自身不能合成赖氨酸,需要通过外源补充以满足动物的需要。反刍动物小肠内的氨基酸来自瘤胃微生物蛋白和瘤胃未降解蛋白。目前常采用添加过瘤胃保护赖氨酸的方式来提高小肠代谢赖氨酸的含量,从而提高生产性能和经济效益。文章就赖氨酸对奶牛生产性能的影响和过瘤胃保护蛋白的研究进行了综述。
Lysine is one of the most important limiting amino acids.Ami no acids of dairy cow small intestinal absorption to maintain growth reproduction and lactation has extremely important life activities.Usually ruminants cannot synthesis lysine by themselves,and need to be supplemented by exogenous sources to meet the needs of the animals,amino acids in ruminant animal intestine of were from rumen microbial protein and rumen undegraded protein.At present,the method of adding rumen-protected lysine is often used to increase the content of metabolized lysine in the small intestine,thereby improving production performance and economic benefits.In this paper,the effect of lysine on dairy cow production performance and research of bypass rumen protected protein were summarized.
作者
毛家真
杨金勇
王俊红
王艳明
俞佳妃
崔艳军
王翀
MAO Jiazhen;YANG Jinyong;WANG Junhong;WANG Yanming;YU Jiafei(College of Jixian,College of Animal Science and Technology,College of Veterinary Medicine,Zhejiang Agriculture and Forestry University.Key Laboratory of Application Technology of Green Ecological and Healthy Breeding of Livestock and Poultry in Zhejiang Province,Zhejiang Engineering Laboratoiy of Animal Health Internet Detection Technology.Hangzhou 311300,China;Zhejiang Province Animal Husbandry Technology Promotion and Breeding Livestock and Poultry Monitoring Station.Hangzhou 310021,China;College of Animal Science,Zhejiang University,Hangzhou 310058,China;Jianming(China)Technology Co.,Ltd.,Zhuhai 519040,Guangdong China)
出处
《饲料博览》
CAS
2021年第2期14-16,共3页
Feed Review
基金
浙江省畜牧产业技术项目
浙江省农业重大技术协同推广计划项目(2019XTTGXM02-3)
浙江省“三农六方”科技协作项目(2019SNLF019,2020SNLF019)
浙江省畜禽绿色生态健康养殖应用技术研究重点实验室项目(KLGEH003)
浙江省团队科技特派员结对服务计划项目。
关键词
赖氨酸
泌乳奶牛
生产性能
过瘤胃保护蛋白
lysine
lactation dairy cows
production performance
rumen protective protein
