早期限饲对肉鸡消化器官及腿部疾病的影响

Early feed restriction on protein turnover of broiler chickens

为研究早期限饲对肉鸡消化器官及腿部疾病的影响,设计在5~11日龄、8~14日龄、11~17日龄分别限饲10%、20%、30%。设计在5~11日龄、8~14日龄、11~17日龄分别限饲10%、20%、30%。结果表明,21日龄时,各处理组肌胃指数和对照组差异不显著(P>0.05);35日龄各限饲组肌胃指数均超过对照组,部分组达到显著水平(P<0.05);49日龄时总体上仍高于对照组。早期限饲降低肉鸡TD发病率,减轻TD发病程度,限饲越早发病率越低(R 2=0.9576),但差异不显著(P>0.05)。

The aim of this experiment was to study the effects of early feeding on digestive organs and leg diseases of broilers.The result indicate that,At 21 days of age,there was no significant difference in the GI index between treatment groups and control group(P>0.05);At 35 days of age,the GI index in all restricted feeding groups was higher than that in the control group,and some groups reached a significant level(P<0.05);It was still higher than the control group at 49 days of age.Early feeding reduced the incidence of TD and the incidence of TD in broilers.The earlier the restriction was,the lower the incidence of TD was(R 2=0.9576),but the difference was not significant(P>0.05).