肉鸡日粮中补铬的研究

Study of Dietary Chromium Supplementation of Broiler

选用 40 0只 1日龄艾维茵肉仔鸡 ,随机均分为四组 (公母各半 )。Ⅰ组喂基础日粮作对照组 ,Ⅱ、Ⅲ和Ⅳ组分别于基础日粮中添加 1× 1 0 -4 、2× 1 0 -4 和 3× 1 0 -4 吡啶羧酸铬(以铬计 ) ,试验期 42天。结果表明 :日粮补铬对生产性能和屠宰率无显著影响 (P >0 0 5 ) ;补铬可显著降低腹脂率和血清中胆固醇的含量 (P <0 0 5 ) ;补铬可显著提高胸肌率 (P <0 0 5 )。

Avian briolers of 1 day were vandomly divided into four groups Ⅰ group,Ⅱ group,Ⅲ group and Ⅳ group were feed on basal diet,basal diet+1×10 -5 Cr,basal diet+2×10 -5 Cr and basal diet+3×10 -5 Cr respectively Ⅰ group is control group,Ⅱ,Ⅲ,Ⅳ groups are experimental groups The experiment was for 42 days The result show that Ab dominal fat and serum total cholesterol were significant decreased in experimental groups (P<0 05),the percentag of brisket was significant increased in experimental groups (P<0 05) There were no remarkable differences of performance and dressing percentage among the four groups (P>0 05)