日粮苏氨酸水平对0～3周龄肉仔鸡生长性能、血清生化指标及免疫机能的影响  

Effect of Dietary Threonine Levels on Growth Performance,Serum Biochemical Parameters and Immune Function in Broilers at 0～3 weeks

作　　者：王红梅[1] 刘国华[2] 陈玉林[1] 李建涛[2] 

机构地区：[1]西北农林科技大学动物科技学院,陕西杨凌712100 [2]中国农业科学研究院饲料研究所,北京100081

出　　处：《中国家禽》2005年第20期12-15,共4页China Poultry

基　　金：国家"十五"重点科技攻关项目(2004BA514A13)资助。

摘　　要：选用360只1日龄体重相近的健康AA肉公雏,随机分成5组,每组6个重复。5个试验日粮可消化苏氨酸水平分别为0.53%、0.60%、0.67%、0.70%和0.73%。结果表明,日粮苏氨酸水平显著影响肉仔鸡日增重和饲料转化率,以生长性能为指标确定的可消化苏氨酸需要量为0.60%,Thr/Lys为60%。日粮中添加苏氨酸显著提高了肉仔鸡细胞免疫和体液免疫功能。Three hundred and sixty one-day aged AA broilers were randomly allocated to 5 dietary treatments with 6 replicates of 12 male chicks. Dietary digestive threonine levels were 0.53%,0.60%,0.67%,0.70%,0.73% for 5 trail diets, respectively. The results showedthat dietary threonine levels affected daily gain feed efficiency significantly. Immune function was significantly improved by Thr level.

关 键 词：肉仔鸡 生长性能 血清生化指标 免疫机能 日粮 苏氨酸 饲料转化率 

分 类 号：S831.5[农业科学—畜牧学]