饲料研究2024，Vol.47Issue(19)：43-49,7.DOI:10.13557/j.cnki.issn1002-2813.2024.19.009
饲粮蛋氨酸水平对1～42日龄盐津乌骨鸡生长发育的影响
Effect of dietary methionine level on growth and development of Yanjin silky fowl chickens aged 1 to 42 days
摘要
Abstract
The experiment aimed to investigate the effect of dietary methionine levels on the growth and development of Yanjin silky fowl chickens aged 1 to 42 days.A total of 200 one-day-old healthy Yanjin silky fowl chickens with similar body weights were randomly divided into five groups,with five replicates per group and eight chickens per replicate,including both males and females.Each group was fed experimental diets with methionine levels of 0.32％,0.41％,0.50％,0.59％,and 0.68％.The trial period was 42 days.The results showed that there were significant differences in the body weight of chicks from 7 to 28 days old among the groups,with the 0.41％and 0.50％groups had higher body weights,and the weight gain in the 0.41％group was significantly higher than that of the 0.50％and 0.59％groups in the sixth week(P＜0.05).The dietary methionine levels significantly affected the body slanting length,breast width,breast depth,keel length,tibial circumference,and pelvic width of chicks at 7 days old,as well as the body slanting length,breast width,breast depth at 42 days old,and tibial length from 14 to 42 days old.At 42 days old,the breast width of the 0.41％group was significantly higher than that of the 0.32％group(P＜0.05),and the tibial length was significantly higher than that of the 0.32％,0.59％,and 0.68％groups(P＜0.05).At 42 days old,the lengths of the ileum,rectum,and total intestine,as well as the indices of the ileocecal,muscular gastrulae,cardiac,hepatic,and splenic of the chicks,showed significant differences among the groups.The length of rectum was significantly higher in the 0.41％group than that of the other groups(P＜0.05).The dietary methionine levels significantly affected the length of the parafoil feathers at 28 and 35 days old,and the number of primary wing feathers at 7,21,and 35 days old.The study indicates that when the dietary methionine level is 0.41％,the growth and development of Yanjin silky fowl chickens from 1 to 42 days old is better.关键词
饲粮蛋氨酸水平/盐津乌骨鸡/育雏期/生长发育Key words
dietary methionine level/Yanjin silky fowl chicken/brooding period/growth and development分类
农业科技引用本文复制引用
付礼想,李涵,苏祉娴,孙金东,汤安兴,杨亮宇,牛国一,陶琳丽..饲粮蛋氨酸水平对1～42日龄盐津乌骨鸡生长发育的影响[J].饲料研究,2024,47(19):43-49,7.基金项目
国家重点研发计划课题(项目编号:2022YFD1601904) （项目编号:2022YFD1601904）
国家级大学生创新创业训练计划项目(项目编号:202310676018) （项目编号:202310676018）
云南省现代农业禽蛋产业技术体系项目(项目编号:2017KJTX0017) （项目编号:2017KJTX0017）
盐津县乌骨鸡全产业链技术服务项目 （）
