日粮中添加乳化剂对肉鸡生长性能的影响

为了研究饲料乳化剂对白羽肉鸡生产性能的影响，选用刚孵化出壳的‘罗斯308’白羽肉鸡12000羽，随机分成3个处理，每个处理4个重复，每个重复1000羽，各处理试鸡初始体重为(46.5±1.0) g，且处理间差异不显著(P>0.05)。试验分为3个阶段：肉小鸡（0~14天）阶段、肉中鸡（15~28天）阶段和肉大鸡（29~42天出栏）阶段。试验处理A：饲喂按罗斯肉鸡的营养标准需要配制的基础饲料；处理B：在基础日粮上添加200 g/t乳化剂；处理C：在基础日粮上，添加5 kg糠粕代替日粮中等量的混合油，同时添加200 g/t乳化剂。结果表明：额外添加乳化剂会有降低肉鸡的ADFI的趋势，同时提高了肉鸡的ADG；减少油脂后，添加乳化剂对肉鸡ADFI和ADG影响不显著，使肉鸡ADG和料重比保持了正常的水平。

Effect of Feed Emulsifier on Growth Performance in Ross Broilers

In order to study the influence of feed emulsifier on growth performance in Ross white feather broiler. 12000 ‘Ross 308’ white feather broilers, with an average weight of (46.5±1.0) g, were randomly allocated into 3 groups, and each group contained 4 replicates. It was divided into 3 stages in the breeding experiment: the stage of 0-14 d, 15-28 d stage and 29-42 d stage. The basal diet for group A was designed according to the Ross broilers nutrition requirements; based on the basal diet, 200 g/t emulsifier was added into diet B for group B; 5 kg of bran meal was used to replace, 5 kg/t mixed oil in diet C for group C, as well as supplemented with 200 g/t emulsifier. The results showed that: the addition of emulsifiers reduced broiler ADFI and improved broiler ADG; the broiler ADFI and ADG had no significant effect by reducing oil and adding emulsifier. Overall, adding emulsifiers, oil 5 kg/t reduction had maintained the ADG and fed to gain ratio of broiler to normal level.