在基础饲粮中添加不同比例的凹凸棒石粉，观察其对蛋鸡生产性能的影响，结果表明，与对照组相比，基础饲粮+1.5%凹凸棒石粉处理组入舍母鸡产蛋率显著提高，且料蛋比显著降低。基础饲粮+2.0%凹凸棒石粉处理组入舍母鸡产蛋率和入舍母鸡产蛋重均显著低于基础饲粮+1.5%凹凸棒石粉处理组，而料蛋比显著高于基础饲粮+1.5%凹凸棒石粉处理组。试验组的日耗料量、死淘率和破汤蛋率都有不同程度的降低，但差异均不显著。

Adding different proportions in the basic diet attapulgite powder， to observe its effect on production performance of laying hens， the result shows that compared with the control group， the basal diet +1.5% attapulgite powder， its effect on the treatment group of hen egg laying rate increased and the feed egg ratio decreased significantly . The basal diet +2.0% attapulgite powder treatment group hen laying rate and hen egg weight is significantly lower than the basal diet +1.5% attapulgite powder treatment group， and the feed egg ratio is significantly higher than that in the basal diet +1.5% attapulgite powder treatment group . In experimental group， daily feed consumption， mortality and broken soup egg rate are decreased in different degree， but the difference is not significant .

S831.4