90~100日龄慢速型黄羽肉鸡常规能量和糠麸类饲料原料代谢能评定  

Evaluation of Metabolizable Energy in Common Energy and Bran Ingredients Fed to 90-100 Days Old Slow-growing Yellow Feathered Broiler Chickens

作　　者：张赛 苟钟勇 蒋守群 ZHANG Sai;GOU Zhongyong;JIANG Shouqun(Institute of Animal Science,Guangdong Academy of Agricultural Sciences,State Key Laboratory of Livestock and Poultry Breeding,Key Laboratory of Animal Nutrition and Feed Sciencein South China,Ministry of Agriculture and Rural Affairs,Guangdong Key Laboratory of Animal Breeding and Nutrition,Guangdong Guangzhou 510640,China)

机构地区：[1]广东省农业科学院动物科学研究所,畜禽育种国家重点实验室,农业农村部华南动物营养与饲料重点实验室,广东省畜禽育种与营养研究重点实验室,广东广州510640

出　　处：《饲料工业》2022年第3期41-45,共5页Feed Industry

基　　金：国家肉鸡产业技术体系项目[CARS-41-G10];国家自然科学基金青年科学基金项目[31802104];广东省重点领域研发计划项目[2020B0202090004];广东省科技计划项目[2017B020202003];广东省农业科学院科技计划项目[202106TD];广州市科技计划重点项目[201804020091]。

摘　　要：试验旨在为慢速型黄羽肉鸡日粮配制提供数据参考并完善我国黄羽肉鸡饲料原料基础数据库,选用90日龄清远麻鸡168只,按体重随机均分成7组,每组6个重复,每个重复4只鸡。试验预饲3 d,全收粪3 d。7组分别饲喂基础日粮、30%玉米日粮、30%大麦日粮、30%小麦日粮、30%高粱日粮、25%麦麸日粮、30%米糠日粮。采用全收粪和套算法测定总能(GE)代谢率、表观代谢能(AME)和氮校正代谢能(AMEn)。结果表明:玉米、大麦、小麦、高粱、麦麸和米糠的总能代谢率分别为83.0%、82.5%、83.3%、83.9%、39.5%、65.9%,AME分别为13.56、12.98、13.10、13.61、6.99、11.92 MJ/kg,AMEn分别为13.41、12.61、12.93、13.41、6.54、11.52 MJ/kg。The experiment was conducted to provide reference of diet formulation,and facilitate the establishment of feed ingredient database for slow-growing yellow feathered broiler chickens.A total of 168 Qingyuan partridge chickens aged 90 days were selected,and were randomly allocated into seven groups,with each group represented by six replicates of four broiler chickens per replicate.The trial consisted of 3-day pre-feeding period and 3-day total collection of excreta.Seven groups were fed with basal-diet,30%corn substituted diet,30%barley diet,30%wheat diet,30%sorghum diet,25%wheat bran diet,30%rice bran diet,respectively.The total excreta collection and substitution method were used to measure the gross energy utilization,the apparent metabolizable energy(AME)and nitrogen corrected metabolizable energy(AMEn).Results showed that the gross energy(GE)utilization of corn,barley,wheat,sorghum,wheat bran,and rice bran were83.0%,82.5%,83.3%,83.9%,39.5%,and65.9%,respectively.The AME and AMEn were 13.56 and 13.41 MJ/kg,12.98 and 12.61 MJ/kg,13.10 and 12.93 MJ/kg,13.61 and 13.41 MJ/kg,6.99 and 6.54 MJ/kg,11.92 and 11.52 MJ/kg,respectively.

关 键 词：代谢能 玉米 大麦 小麦 高粱 麦麸 米糠 

分 类 号：S816.32[农业科学—饲料科学]