山地林下生态牧养蛋鸡日粮中人工补料添加量的研究  

Effects of Different Level Feed Supplements of Diet on Free Range Grazing Layers

作　　者：赵晓钰[1] 张学刚 林洋 宁中华[1] 

机构地区：[1]中国农业大学动物科技学院,北京100193 [2]河南柳江禽业有限公司,河南鹤壁458000

出　　处：《中国家禽》2011年第24期12-15,共4页China Poultry

基　　金：国家现代蛋鸡产业技术体系(nycytx-41);农业公益行业项目(nyhyzx07039)

摘　　要：本试验研究了山地林下生态牧养条件下,蛋鸡对日粮中人工补料的依赖程度。选取苏禽绿壳蛋鸡600只,随机分5个处理组,每组4个重复,每个重复30只,从第1组到第5组蛋鸡日粮中人工补料的添加量依次为:0%、0.50%、0.75%、1.00%(常量对照组)、1.25%。结果表明,第5组蛋鸡的产蛋率显著高于第1组(P<0.05);除第5组蛋形指数显著低于第一组外(P<0.05),其它蛋品质指标间均无显著差异(P>0.05),但第5组鸡蛋中的维生素、矿物质等营养成分总体含量明显高于其它几组(P<0.05)。This paper aimed at evaluating the effects of different level feed supplements of layer diet on the egg production and egg quality of laying hens kept in free range system. Six-hundred green shell layers were randomly divided into five treatments,four replicates with thirty birds in each. The first to fifth group＇s experimental diets consisted of a basal diet with artificial supplements,which was 0%,0.50%,0.75%, 1.00% （control group）,1.25%. The laying rate of the group 5 was significantly higher than that of the group 1 （P〈0.05）;The eggshape index of the group 5 was lower than that of the group 1 （P〈0.05）,the lowest level supplements had no significant effects on other egg quality parameters （P〉0.05）over the entire experiment,while the vitamins,minerals and the other nutrients of group 5 were obviously higher than that of the other four groups （P〈0.05）.

关 键 词：生态牧养 蛋鸡 补料 生产性能 蛋品质 

分 类 号：S831.5[农业科学—畜牧学]