Divide 500 Dika young roosters for egg production into six groups at random,and adopt different treatments for each of them (Add dry chick faeces in different proportions to the ration of each group).

• 将500羽迪卡蛋仔公鸡随机分为六组,采用六种不同的处理(各组日粮中添加不同比例的干燥鸡粪),进行90天的饲养试验。 饲养结果表明:1、添加干燥鸡粪的量为5%25、10%25、15%25的三个组,其日增重均超过对照组;