在蛋鸡基础饲粮(玉米-豆粕-杂粕型)中添加不同比例的凹凸棒石粉，观察其对鸡蛋品质的影响。结果表明，基础饲粮+1.5%凹凸棒石粉效果较好，与基础饲粮(不添加凹凸棒石粉)相比，蛋壳厚度显著提高，平均蛋重、哈氏单位、蛋壳强度、单位面积蛋壳重均有不同程度提高。

Adding different proportions of attapulgite powder in the basal diet(corn-soybean-miscellaneous meal)， to observe its effect on production performance of egg quality， the result shows that compared with the control group， effect of the basal diet + 1.5% attapulgite powder is better， its shell thickness increased significantly， the average egg weight， Haugh unit， eggshell strength， shell weight per unit area are improved in different degree .

S565.5