江西农业学报2023，Vol.35Issue(10)：74-79,6.DOI:10.19386/j.cnki.jxnyxb.2023.10.012
宁都黄鸡新品系剩余采食量与生产性能的相关性分析
Correlation Analysis of Residual Feed Intake and Growth Performance of New Ningdu Yellow Chicken Strains
摘要
Abstract
The two new lines of Ningdu yellow chicken were used as the research object,and two growth stages were selected:42～56 and 84～98 day old.The remaining feed intake,daily average feed intake,body weight gain,and other indicators were measured,and genetic parameters were analyzed.The results showed that there were significant differences in remaining feed intake,metabolic weight,and average daily gain between the two lines.The residual feed intake of the two strains showed moderate heritability and had moderate positive genetic correlation with feed conversion rate and average daily feed intake(ra＞0.30),but had negative genetic correlation with metabolic weight and average daily gain.The residual feed intake has a correlation with the carcass traits and will be beneficial for improving the carcass traits of Ningdu yellow chicken strains.The research results indicate that residual feed intake and growth traits are independent of each other.Taking residual feed intake as a selection trait is more conducive to improving the feed conversion efficiency of the two strains of Ningdu yellow chicken without affecting growth traits.It can also be used for indirect selection of carcass traits,which has important guiding significance for the balanced breeding of Ningdu yellow chicken.关键词
宁都黄鸡/剩余采食量/生长性能/饲料转化率Key words
Ningdu yellow chicken/Residual feed intake/Growth performance/Feed conversion rate分类
农业科技引用本文复制引用
魏岳,唐维国,刘林秀,康昭风,武艳平,张危红,谢金防,陈荣俊..宁都黄鸡新品系剩余采食量与生产性能的相关性分析[J].江西农业学报,2023,35(10):74-79,6.基金项目
江西省重点研发计划项目(20192BBFL60019) （20192BBFL60019）
江西现代农业科研协同创新专项项目(JXXTCXQN202202) （JXXTCXQN202202）
国家肉鸡产业技术体系(CARS-42-Z10). （CARS-42-Z10）
