饲粮添加铜对1~21日龄肉仔鸡生长性能和血清生化指标的影响  

Effect of Dietary Copper Supplementation on Growth Performance and Biochemical parameters in Serum of Broilers from 1 to 21 days of age

作　　者：陈志勇 廖秀冬[2] 张丽阳[2] 吕林[2] 黄艳玲[1] 罗绪刚 CHEN Zhiyong;LIAO Xiudong;ZHANG Liyang;LYU Lin;HUANG Yanling;LUO Xugang(College of Life Science and Technology,Southwest Minzu University,Sichuan Chengdu 610041,China;Mineral Nutrition Research Division,Institute of Animal Science,Chinese Academy of Agricultural Sciences,Beijing l00193,China;Poultry Mineral Nutrition Laboratory,College of Animal Science and Technology,Yangzhou University,Jiangsu Yangzhou 225000,China)

机构地区：[1]西南民族大学生命科学与技术学院,四川成都610041 [2]中国农业科学院北京畜牧兽医研究所,矿物元素营养研究室,北京100193 [3]扬州大学动物科技学院,家禽矿物元素营养研究室,江苏扬州225000

出　　处：《中国畜牧杂志》2020年第5期127-132,共6页Chinese Journal of Animal Science

基　　金：国家现代农业产业技术体系岗位专家专项经费(CA RS-41);中央高校基本科研业务费专项资金优秀学生培养工程项目(2018YXXS13);中国农业科学院科技创新工程专项经费(ASTIP-IAS08)。

摘　　要：本试验旨在研究饲粮中添加不同水平铜对1~21日龄肉仔鸡生长性能和血清生化指标的影响。选用192只初始体重(42.68±0.18)g的1日龄健康商品代爱拔益加(AA)肉公雏,随机分为3组,每组8个重复,每个重复8只鸡。采用单因子完全随机试验设计,对照组饲喂玉米-豆粕型基础饲粮(铜含量为5.17 mg/kg),其余2组分别在基础饲粮中添加6、12 mg/kg铜(源自无机硫酸铜),试验期21 d。结果表明:饲粮添加铜对1~21日龄肉仔鸡平均日增重、耗料增重比和死亡率均无显著影响;与对照组相比,饲粮中添加6 mg/kg或12 mg/kg铜显著降低了肉仔鸡平均日采食量;饲粮添加铜对21日龄肉仔鸡血清总胆固醇、甘油三酯、高密度脂蛋白胆固醇和低密度脂蛋白胆固醇含量均无显著影响;饲粮添加铜对21日龄肉仔鸡血清总蛋白、白蛋白、球蛋白、尿酸和尿素氮、葡萄糖含量及碱性磷酸酶、谷丙转氨酶、谷草转氨酶活性均无显著影响。综上,饲粮添加无机硫酸铜形式的铜可降低1~21日龄肉仔鸡采食量,但对肉仔鸡其他生长性能指标及血清生化指标均无不良影响。The objective of this experiment was to investigate the effect of dietary supplemental copper(Cu)levels on growth performance and serum biochemical parameters of broilers(initial body weight:42.68±0.18 g).A total of 192 oneday-old Arbor Acres(AA)male broilers were randomly allocated to one of three treatments(eight replicate cages of eight chicks per cage)in a completely randomized design.Broilers were fed on Cu-unsupplemented corn-soybean meal basal diets containing 5.17 mg/kg Cu or basal diets supplemented with 6 or 12 mg/kg Cu as Cu sulfate for the duration of 21 days.The results showed that dietary supplementation of Cu had no effect(P>0.05)on the average daily gain,feed/gain and mortality of broilers from 1 to 21 days of age,but affected(P<0.05)the average daily feed intake(ADFI).Compared with the control group,dietary supplementation of copper at 6 or 12 mg/kg reduced(P<0.05)ADFI of broilers from 1 to 21 days of age.Copper supplementation did not affect(P>0.05)the concentrations of total cholesterol,total triglycerides,high density lipoprotein cholesterol and low density lipoprotein cholesterol in the serum on d 21.In addition,copper supplementation had no effect(P>0.05)on the concentrations of total protein,albumin,globulin,uric acid,urea nitrogen and glucose,and activities of alkaline phosphatase,alanine transaminase and aspartate aminotransferase in the serum on d 21.These results indicate that dietary supplementation of Cu as Cu sulfate can decrease ADFI of broilers from 1 to 21 days of age,but have no adverse effect on the other growth performance parameters and serum biochemical indices of broilers.

关 键 词：铜水平 肉仔鸡 生长性能 血清生化指标 

分 类 号：S831.5[农业科学—畜牧学]