畜牧兽医学报2024，Vol.55Issue(1)：31-38,8.DOI:10.11843/j.issn.0366-6964.2024.01.004
家禽支链氨基酸营养需要研究进展
Advances in Research on the Nutritional Requirements of Branched-Chain Amino Acids in Poultry
摘要
Abstract
Branched-chain amino acids(BCAA)play important roles in poultry growth,production performance,immune function and intestinal health.They are involved in key processes such as organ development,immune response,muscle protein turnover and gene regulation.However,an excess,deficiency or imbalance of a single BCAA can affect poultry protein synthesis and intestinal health.Therefore,maintaining a balanced ratio of BCAA is critical for poultry performance.Although the NRC(1994)provides recommended amounts of BCAA for broilers,laying hens,and breeders,there are variations in BCAA requirements among poultry breeds,dietary protein levels,and growth stages.Meanwhile,the ban on antibiotic growth promoters and the challenges of multiple diseases in poultry farming necessitate a re-evaluation of the recommended levels of BCAA intake.Additionally,more research is needed to explore the mechanisms of action of BCAA in maintaining intestinal integrity and regulating gut microbial composition and enhancing protein turnover efficiency in the body.This review aims to describe the nutritional and physiological roles of BCAA in poultry,as well as their effects on production and health.And also provides BCAA requirements for different broiler breeds(broilers,laying hens and breeders)under various feeding conditions.These recommendations aim to provide theoretical references for the recommended levels of BCAA in low-protein diets for poultry.关键词
家禽/支链氨基酸/生产性能/免疫功能/肠道健康Key words
poultry/branched-chain amino acids/productive performance/immune function/intestinal health分类
农业科技引用本文复制引用
牟湘钰,徐云若,胡静怡,周欣妍,朱勇文..家禽支链氨基酸营养需要研究进展[J].畜牧兽医学报,2024,55(1):31-38,8.基金项目
大学生创新创业训练计划省级项目(S202210564024) （S202210564024）
狮头鹅绿色高效养殖技术创新与示范(210723106900762) （210723106900762）
