【摘要】 本试验选用108只商品代蛋鸡公雏,分成三组,每组三个重复,每个重复12只。三组分别设为对照组、添加0.2%益生菌组、添加50mg/kg土霉素组,试验期为28d。结果表明:与对照组相比,益生菌组鸡只增重提高6.59%,料重比改善6.45%,全净膛率提高3.82%。更多还原

【Abstract】 Nickhom chicken were assigned three treatments and three replicates in each treatment,each replicate had12chicken.Three treatments were the control group、the0.2%probiotics group and the50mg /kg antibiotic group,the basic diet of three group was the same.The experiment period was28days.The result showed that the body weight of the probiotics group increased6.59%,feed effeciency increased6.45%,the whole net carcass rate increased3.82%compared with the control group.更多还原