丁酸钠对高密度饲养黄羽肉鸡生产性能、免疫器官指数和福利状况的影响  

Effects of Sodium Butyrate on Production Performance,Immune Organ Indexes and Welfare Quality of Yellow-feather Broilers at High Stocking Density

作　　者：贺姣[1,2] 邵丹[2] 张珊[2] 施寿荣[2] 谢飞 丁家桐[1] 童海兵[2] 

机构地区：[1]扬州大学动物科学与技术学院,江苏扬州225009 [2]中国农业科学院家禽研究所,江苏扬州225009 [3]上海美农生物科技股份有限公司,上海201800

出　　处：《中国家禽》2015年第5期33-36,共4页China Poultry

基　　金："十二五"国家科技支撑计划(2012BAD39B04);江苏省农业科技自主创新资金项目(CX(14)2080);公益性行业(农业)科研专项(201003011);江苏省农业三新工程项目(SXGC2013356)

摘　　要：为探讨丁酸钠对黄羽肉鸡生产性能、免疫器官指数和福利状况的影响,选用336只21日龄苏禽黄鸡（公雏）,随机分成2组（分别饲喂基础饲粮和基础饲粮添加500 mg/kg微囊丁酸钠的试验饲粮）,每组6个重复,每个重复28只鸡,饲养密度为19只/m2,试验期为35 d。结果表明：丁酸钠对高密度饲养黄羽肉鸡21~56日龄期间的平均日增重、平均日采食量、死亡率影响显著（P〈0.05）,对免疫器官指数无显著性影响（P〉0.05）;丁酸钠可显著改善高密度饲养黄羽肉鸡羽毛污染、肘关节肿大（P〈0.05）。由此可知,在饲粮中添加500 mg/kg微囊丁酸钠可以降低肉鸡死亡率并改善肉鸡的福利状况。To investigate the effects of sodium butyrate on production performance,immune organ indexes and welfare quality of yellow-feathered broilers at high stocking density,a total of 336 21-day-age Suqin yellow-feather male broilers were randomly allocated to 2 groups（fed with basal diet and basal diet adding 500 mg/kg microencapsulated sodium butyrate respectively）with 6 replicates per group,28 birds per replicate,and the stocking density was 19 birds/m2.The results showed that sodium butyrate had significant effects on ADG,ADFI and mortality of yellow-feather broilers at high stocking density（P0.05）,but had no effects on F/G（P0.05）. Sodium butyrate had no effects on immune organ indexes of broilers（P0.05）,but significant affected the welfare quality indexes of feather pollution and hock swelling（P0.05）. In conclusion,basal diet added 500 mg/kg microencapsulated sodium butyrate could decrease the mortality rate and improve the welfare situation of yellow-feather broilers.

关 键 词：丁酸钠 饲养密度 黄羽肉鸡 生长性能 福利评价 

分 类 号：S831.5[农业科学—畜牧学]