后期限饲和补饲对蛋鸡产蛋性能的影响

通过限饲和补饲比较不同配比饲料对蛋鸡生长发育与产蛋量方面的差别.选用43周龄的封闭系统下饲养的普通级罗曼褐壳蛋鸡60只,体重2.1～2.3kg,外观健康,剖检无临床病变.按体重配对随机分为3组,每组20只,各组间体重无显著性差异.Ⅰ组为正常对照组,Ⅱ组限饲,Ⅲ组补饲.试验期4个月.试验完毕统计产蛋量,测定各项指标.结果表明,试验组产蛋量和产蛋率均高于对照组(P＜0.05),限饲组Ⅱ产蛋量和产蛋率均高于补饲组Ⅲ(P＜0.05),后期限饲和补饲均可提高蛋鸡的生产性能,整体补充饲养有利于蛋鸡的生长和生产性能提高.

Effect of limited feeding and supplementary feeding on the laying production

This experiment was conducted in order to investigate the effect of laying hen's growth and egg production between different breeding styles.A total of 60 romance laying hens(2.1-2.3 kg) were randomly divided into three groups by their weights at the age of 43 weeks.Group Ⅰ was normal control which was reared with the fundamental feed.The two experimental groups: limited feeding(Ⅱ) and supplementary feeding(Ⅲ).These laying hens were fed for 4 months.At the end of the experiment,various indexes were determined.The results showed that the egg production and the rate of egg production of experimental groups were obviously higher than that in the control group(P<0.05),and group Ⅱ was higher than group Ⅲ(P<0.05).All these results indicated that limited feeding and supplementary feed could greatly affect the egg production and the rate of egg production of laying hens,and that supplementary feeding was more effective.