日粮铜水平对育成蛋鸡生长性能和新城疫抗体效价的影响  

Effect of Dietary Copper Levels on Growth Performance and the Value of Serum Antibody aganist Newcastle Disease of Growing Layers

作　　者：张彩英[1] 郭小权[1] 曹华斌[1] 李浩棠[1] 胡国良[1] 

机构地区：[1]江西农业大学动物科学技术学院,江西南昌330045

出　　处：《江西农业大学学报》2010年第2期206-209,共4页Acta Agriculturae Universitatis Jiangxiensis

基　　金：国家自然科学基金资助(30860212);江西省教育厅科技项目(GJJ08183)

摘　　要：通过探讨有机铜对育成蛋鸡免疫功能和生产性能的影响,为蛋白质螯合铜在生产中的应用提供理论依据。试验选用9周龄的海兰褐蛋鸡216只,随机分为6组,每组3个重复,每个重复12只鸡,11周龄时开始进入正式试验。分别饲喂添加蛋白质螯合铜(以铜量计)0mg/kg(Ⅰ组)、6.5mg/kg(Ⅱ组,对照组)、15mg/kg(Ⅲ组)、30mg/kg(Ⅳ组)、60mg/kg(Ⅴ组)、125mg/kg(Ⅵ组)相同的基础日粮,试验期为6周,测定鸡的平均日增重、平均日采食量和新城疫抗体效价。结果表明:与对照组相比,Ⅲ组和Ⅳ组显著提高育成蛋鸡平均日增重、平均日采食量和新城疫抗体效价。添加15mg/kg和30mg/kg铜(以蛋白质螯合铜的形式)可显著提高育成蛋鸡的生产性能和免疫功能,15～30mg/kg铜(以蛋白质螯合铜的形式)为育成蛋鸡最适宜的添加范围。Two-hundred and sixteen 9-week-age Hailan brown growing layers were used in the 6-week trial to examine the effect of different levels of dietary copper-proteinate （Cu-proteinate） on growth performance and immune function.The growing layers were randomly divided into 6 groups with three repeats per group and 12 growing layers in a repeat.Dietary treatments were 0 （Ⅰ）,6.5（Ⅱ）,15（Ⅲ）,30（Ⅳ）,60（Ⅴ）or 125（Ⅵ） mg/kg of supplemental Cu from Cu-proteinate.The experiment began at 11-week-age of the growing layers.The results showed that 15 and 30 mg/kg Cu-proteinate increased the values of mean daily feed intake and mean weight and the value of serum antibody against Newcastle disease,compared with the control group （6.5 mg/kg）.As a whole,15-30 mg/kg copper from Cu-proteinate increased growth performance and immune function and was presumed the best supplementation of growing layers.

关 键 词：蛋白质螯合铜 育成蛋鸡 生产性能 新城疫抗体效价 

分 类 号：S816.72[农业科学—饲料科学] S831.5[农业科学—畜牧学]