枯草芽孢杆菌饲料添加剂对笼养和地面平养肉鸡生长性能的影响  

Effects of Bacillus Subtilis Feed Additive on Growth Performance of Broilers in Cage or Floor Feeding System

作　　者：廖国周[1] 苏子峰[2] 张红兵 陈爱民[4] 廖启顺[5] 王桂瑛[5] 程志斌[1] 刘绍贵[6] 吴政明 

机构地区：[1]云南农业大学,昆明650201 [2]大理学院农学与生物科学学院,云南大理671003 [3]云南西尔南饲料有限公司,昆明650224 [4]云南省农业科学院农业经济与信息研究所,昆明650205 [5]云南农业职业技术学院,昆明650031 [6]云南省种畜场,昆明650212

出　　处：《饲料博览》2011年第10期1-4,共4页Feed Review

基　　金：科技部科技人员服务企业行动项目(2009GJF30046);云南省科技攻关项目(2008LA006);云南省科技厅技术创新暨产业发展专项资金(2010HA055);昆明市科技局项目(08G100112);云南省创新型企业试点项目

摘　　要：将1日龄罗斯308肉仔鸡480只分为4个处理组:处理组1和2肉鸡日粮添加抗生素金霉素,处理组3和4替代添加枯草芽孢杆菌;处理组1和3肉鸡地面平养,处理组2和4采用笼养,试验期42d。结果显示,处理组2和3平均日增重无显著差异(P>0.05),显著低于处理组4(P<0.05),高于处理组1(P>0.05);处理组4肉鸡的饲料转化效率显著优于其他3个处理组(P<0.05)。所有处理组肉鸡的采食量指标差异不显著(P>0.05)。试验证明,无论是地面平养还是笼养方式,枯草芽孢杆菌替代抗生素对改善肉鸡的生长性能和养殖经济效益均有良好效果。Four hundred and eighty new born broilers（ROSS 308） were assigned four experimental treatments （group 1 to 4）. Aureomycin was used in diets of group 1 and 2, and bacillus subtilis feed additive substituted aureomycin in diets of group 3 and 4. The broilers of group 1 and 3 were reared on the cement floor, and group 2 and 4 in cages. In the experimental period of 42 days, the average daily gain of group 2 and 3 broilers were no differences （P〈0.05）, and were lower than those of group 4（P〉0.05）, and were higher than those of group 1（P〈0.05）. The group 4 broilers had the best feed efficiency among all treatments（P〈0.05）. Otherwise, there were no differences on the feed intake among all treatments（P〉0.05）. These findings proved that feed additive bacillus subtilis could improve the growth performance and feeding economy of broilers in both floor and cage feeding systems.

关 键 词：肉鸡 枯草芽孢杆菌 笼养 地面平养 生长性能 

分 类 号：S831[农业科学—畜牧学] S814[农业科学—畜牧兽医]