饲粮精氨酸水平对肉鸡生长性能、免疫功能及小肠发育的影响
Effects of dietary arginine level on growth performance,immune function,and small intestine development of broilers
伏春燕 1李霞 1王文彬 1张亨 1高庆涛 1商延 1燕磊 2刘雪兰1
作者信息
- 1. 山东省农业科学院家禽研究所,山东济南 250023
- 2. 山东新希望六和集团有限公司,山东青岛 266100
- 折叠
摘要
试验旨在研究饲粮精氨酸水平对肉鸡生长性能、免疫功能及小肠发育的影响.选取1日龄雄性爱拔益加肉仔鸡600只,随机分为5组,每组6个重复,每个重复20只鸡.各组分别在基础饲粮中额外添加0、0.65％、1.15％、1.65％和2.15％精氨酸.试验期42 d.结果显示:与对照组相比,0.65％添加组的肉鸡体重和生长全期平均日增重(ADG)显著升高(P＜0.05),试验42 d肉鸡十二指肠、空肠的绒毛高度/隐窝深度值显著升高(P＜0.05).与对照组相比,2.15％添加组肉鸡的试验21 d血清免疫蛋白含量显著升高(P＜0.05),42 d法氏囊指数显著升高(P＜0.05).研究表明,基础饲粮中添加0.65％精氨酸可以提高肉鸡的体重、平均日增重,促进机体发育和生长后期十二指肠、空肠的发育;高水平(2.15％)的精氨酸可以提高血清免疫蛋白水平、促进小肠发育.
Abstract
The purpose of this experiment was to study the effects of dietary arginine level on the growth performance,immune function,and small intestine development of broilers.A total of 600 one-day-old male Arbor Acres broilers were randomly divided into five groups with six replicates in each group and 20 chickens in each replicate.Each group was supplemented with 0,0.65％,1.15％,1.65％,and 2.15％arginine in the basal diet.The trial period was 42 days.The results showed that compared with the control group,the body weight and average daily gain(ADG)of broilers in the 0.65％supplementation group were significantly higher(P＜0.05),and the villus height/recess depth of duodenum and jejunum were significantly higher after 42 days of experiment(P＜0.05).Compared with the control group,the content of serum immune protein in the 2.15％supplementation group increased significantly on the 21st day(P＜0.05),and the index of bursa of fabricius increased significantly on the 42st day(P＜0.05).The study indicates that proper addition of 0.65％arginine in basal diet can increase the body weight,average daily gain,and promote the development of duodenum and jejunum in the later growth stage of broilers.High level of arginine(2.15％)can improve the level of serum immune protein and promote the development of small intestine.
关键词
肉鸡/精氨酸/生长性能/免疫功能/肠道发育Key words
broilers/arginine/growth performance/immune function/intestinal development引用本文复制引用
基金项目
山东省重大科技创新工程项目(2019JZZY020602)
国家自然科学基金(31902176)
山东省农科院农业科技创新工程项目(CXGC2023D06)
东营市科技计划(2020JCYJ105)
济南引进创新团队项目(202228037)
出版年
2024
国家科技期刊平台
NSTL
万方数据