初产蛋鸡软壳蛋防治试验

Control Technology of Soft-Shelled Eggs in the Beginning of Laying Hens

选择同一批次100日龄青年期京红1号蛋鸡4 000只,分为A、B、C、D四个组,每组1000只,使用不同的石粉添加剂量,分析对蛋壳质量的影响。结果表明:石粉添加时间可在100日龄就开始;100~126日龄添加石粉2%的A组添加量偏低;100~126日龄添加石粉4%的B组与100~110日龄添加石粉2%、110~126日龄添加石粉4%的C组的效果均佳,且这两组间无差异,B、C组与A组差异显著(P<0.05),B、C组与D组(100~126日龄不添加石粉)差异极显著(P<0.01)。

4 000 Beijing Red hens at 100-day-old were selected and randomly devided into 4treatments A,B,C and D,with different limestones supplyment to analyze the influence of eggshell quality.The results showed that the limestone supplyment time is 100day-old,100-126 day-old add 2% of stone,powder content of group A is low;group B,100-110 days of age and powder 2%,110-126 day-old the effect of adding powder 4% C group were better,and no difference between the two groups（P〈0.05）,B,C and D group（100~126 day-old）has extremely significant difference（P〈0.01）.