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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
引用本文:王丹莉,张敏红,杜荣,张卫红.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[J].动物营养学报,1999(2).
作者姓名:王丹莉  张敏红  杜荣  张卫红
作者单位:中国农业科学院畜牧研究所
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。

关 键 词:肉鸡  吡啶羧酸铬  生长性能  新城疫抗体效价

EFFECT OF DIETARY CHROMIUM PICOLINATE LEVEL ON GRAWTH PERFORMANCE,IMMUNE FUNCTION AND CARCASS FAT CONTENT OF BROILER
WNG Dan-li,ZHANG Min-hong,DU Rong,ZHANG Wei-hong.EFFECT OF DIETARY CHROMIUM PICOLINATE LEVEL ON GRAWTH PERFORMANCE,IMMUNE FUNCTION AND CARCASS FAT CONTENT OF BROILER[J].Acta Zoonutrimenta Sinica,1999(2).
Authors:WNG Dan-li  ZHANG Min-hong  DU Rong  ZHANG Wei-hong
Abstract: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.
Keywords:Cr  growth performance  immune function  broiler  
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