日粮铬水平对肉鸡生长性能、免疫机能及胴体脂肪含量的影响  

EFFECT OF DIETARY CHROMIUM PICOLINATE LEVEL ON GRAWTH PERFORMANCE,IMMUNE FUNCTION AND CARCASS FAT CONTENT OF BROILER

作　　者：王丹莉[1] 张敏红[1] 杜荣[1] 张卫红[1] 

机构地区：[1]中国农业科学院畜牧研究所

出　　处：《动物营养学报》1999年第2期19-23,共5页CHINESE JOURNAL OF ANIMAL NUTRITION

基　　金：国家"九五"攻关专题

摘　　要：选用３００只１日龄艾维茵肉仔鸡，研究了日粮中添加不同水平的吡啶羧酸铬对肉鸡的生长性能、免疫机能及胴体品质的影响。日粮添加的吡啶羧酸铬水平分别为０、２００、４００和６００μｇ／ｋｇ。试验期为８周。试验结果表明，０～８周日粮添加６００μｇ／ｋｇ的吡啶羧酸铬时肉鸡生长速度最快，显著高于对照组（Ｐ＜０．０５）。添加吡啶羧酸铬２００～６００μｇ／ｋｇ，对３周龄肉鸡的脾脏、胸腺和法氏囊的发育没有显著影响，对肉鸡血清抗体滴度没有显著影响。吡啶羧酸铬可以降低肉鸡腹脂和肝脂率，对改善胴体品质有益。A trial was conducted to evaluate the effect of dietary chromium picolinate level on growth,immune respones and carcass trait of broiler.300 one-day old Avian chickens were randomly alloted to one of four treatments:1)basal diet;2)basal+200g/kg chromium as chromium picolinate;3)basal+400g/kg chromium as chromium picolinate;4)basal+600g/kg chromium as chromium picolinate.Average daily gain was significantly increased(P<0.05) in broilers fed diet supplemented with 600 g/kg Cr.However,the development of spleen,thymus and bursa of fabricius,and serum antibody titres to Newcastle disease virus were not affected(P>0.05) by the treatments.Cr addition to diet reduced the abdominal fat and liver fat content.

关 键 词：肉鸡 吡啶羧酸铬 生长性能 免疫机能 饲料 

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