热应激条件下日粮添加不同类型的γ-氨基丁酸对黄羽肉鸡生长性能的影响  

Effect of adding different types ofγ-aminobutyric acid to the daily ration on the growth performance of yellow-feathered broiler chicken under heat stress conditions

作　　者：刘松柏 张祥斌 谭会泽[1] 张齐 邹轶 苗丽萍 杨露 黎鸿彬 覃健萍 LIU Song-bai;ZHANG Xiang-bin;TAN Hui-ze;ZHANG Qi;ZOU Yi;MIAO Li-ping;YANG Lu;LI Hong-bin;TAN Jian-ping(Wen’s Foodstuffs Group Co.,Ltd.//Key Laboratory of Animal Nutrition and Feed Science,Ministry of Agriculture,Yunfu 527400,China;College of Animal Science of South China Agricultural University,Guangzhou 510642,China)

机构地区：[1]温氏食品集团股份有限公司∥农业农村部动物营养与健康养殖重点实验室,广东云浮527400 [2]华南农业大学动物科学学院,广东广州510642

出　　处：《粮食与饲料工业》2024年第5期54-55,59,共3页Cereal & Feed Industry

基　　金：以农产品为单元的广东省现代农业产业技术体系创新团队建设项目(2023KJ115)。

摘　　要：试验旨在研究热应激条件下日粮添加不同类型的γ-氨基丁酸对黄羽肉鸡生长性能的影响。将1680只22日龄的黄羽肉鸡随机分为3个组(对照组,发酵型γ-氨基丁酸组,合成型γ-氨基丁酸组),每组8个重复,每个重复70只鸡。进行为期21 d的试验。结果表明:热应激条件下日粮中添加30 mg/kg发酵型γ-氨基丁酸能显著(P<0.01)改善肉鸡的日均增重及耗料增重比,日粮中添加30 mg/kg合成型γ-氨基丁酸组对肉鸡的日均增重及耗料增重比均无显著(P>0.05)的改善作用。综上所述,热应激条件下日粮添加30 mg/kg发酵型γ-氨基丁酸可改善黄羽肉鸡生长性能。The aim of this experiment is to investigate the effect of adding different types ofγ-aminobutyric acid to the daily ration on the growth performance of yellow feathered broiler chicken under heat stress conditions.Altogether 1,68022-day-old yellow feathered broiler chicken were randomized into three groups(namely control group,fermentedγ-aminobutyric acid group,and synthesizedγ-aminobutyric acid group),with 8 replicates in each group and 72 chickens in each replicate to undergo a 21-day experiment.The results showed that adding 30 mg/kg of fermentedγ-aminobutyric acid to the daily ration under heat stress conditions could significantly improve the average daily gain(ADG)and the feed to gain ratio(F/G)of broiler chicken(P<0.01).By contrast,adding 30 mg/kg synthesizedγ-aminobutyric acid to the daily ratio failed to significantly improve the ADG or F/G of the broiler chicken(P>0.05).Taken together,adding 30 mg/kg of fermentedγ-aminobutyric acid to the daily ration under heat stress conditions could improve the growth performance of yellow feathered broiler chicken.

关 键 词：饲料添加剂 Γ-氨基丁酸 黄羽肉鸡 生长性能 

分 类 号：TS207[轻工技术与工程—食品科学]