摘要
现代养禽业采用的高密度笼养体系、分阶段饲养、断喙等管理措施可引起禽的过度应激,使它们出现啄羽、攻击或同类相食等异常行为。肠道菌群被视为一种跨物种的虚拟内分泌器官,通过肠-脑轴的双向通讯整合来自代谢、免疫、内分泌和神经通路发出的信号,并通过肠神经和迷走神经等外周神经系统、5-羟色胺和短链脂肪酸等微生物代谢产物以及免疫系统等途径调控动物应激反应及相应异常行为。本文系统地总结了蛋鸡饲养管理措施所造成的禽过度应激行为,并对微生物-肠-脑轴对鸡应激及其相关行为调控的可能机制进行论述,旨在为益生菌在蛋鸡饲养管理的推广应用提供参考依据。
In the modern poultry industry,some management practices,such as raring birds in a cage system with high density,phase feeding and beak trimming,may cause excessive stress in birds,leading to abnormal behaviors,such as feather pecking,aggression and even cannibalism.The gut microbiota has been recognized as a virtual endocrine organ across species and regulates the hosts’stress response and related abnormal behav⁃iors via the established bidirectional communications of the gut⁃brain axis which can integrate information from metabolism,immune,endocrine and neural pathways,and through the peripheral nervous system including in⁃testinal nerve and vagus,microbial metabolites such as 5⁃hydroxytryptamine and short chain fatty acids,and immune system.In this review,the excessive stress behaviors of laying hens caused by feeding and manage⁃ment measures were systematically summarized,and possible mechanism of microbial⁃intestinal⁃brain axis reg⁃ulating chicken stress and related behaviors was also discussed,aiming to provide some references for probiot⁃ics application in the breeding and management of laying hens.
作者
邹昕羽
CHENG Hengwei
金美兰
江莎
ZOU Xinyu;CHENG Hengwei;JIN Meilan;JIANG Sha(Joint International Research Laboratory of Animal Health and Animal Food Safety,College of Veterinary Medicine,Southwest University,Chongqing 400715,China;USDA Agricultural Research Service,West Lafayette 479072,USA;Immunology Research Center,Medical Research Institute,Southwest University,Chongqing 402460,China)
出处
《动物营养学报》
CAS
CSCD
北大核心
2021年第4期1859-1868,共10页
CHINESE JOURNAL OF ANIMAL NUTRITION
基金
中央高校基本业务费(XDJK2019B013)。
关键词
蛋鸡
应激
异常行为
肠道菌群
微生物-肠-脑轴
laying hens
stress
abnormal behavior
gut microbiota
microbiota⁃gut⁃brain axis
作者简介
邹昕羽(1996—),女,湖北宜昌人,硕士研究生,动物医学基础兽医专业。E⁃mail:136558160@qq.com;通信作者:江莎,副教授,硕士生导师,E⁃mail:jiangsha0527@swu.edu.cn。
