饲粮中添加大薯对文昌鸡生长性能、屠宰性能和肉品质的影响  

Effects of Dioscorea Alata L supplemented in diets on growth performance,slaughter performance and meat quality of Wenchang hens

作　　者：王学梅[1,2] 李笑春[2] 黄东益[2] 杨雨辉[2] 许丽[1] 

机构地区：[1]东北农业大学动物科技学院,黑龙江哈尔滨150030 [2]海南大学农学院,海南海口570228

出　　处：《中国饲料》2014年第4期23-26,共4页China Feed

基　　金：海南省重点科技计划项目(ZDXM2012002);海口市重点科技计划项目(2011-0119)

摘　　要：本试验利用大薯代替不同比例玉米配制日粮饲喂文昌鸡，通过对其生长性能、屠宰性能及肉品质影响的研究，探讨大薯替代玉米的可行性。随机选择50日龄健康、体重相近的文昌鸡母鸡288只，随机分成4组，每组4个重复，每个重复18只鸡。I组为对照组，饲喂玉米一豆粕型基础饲粮；Ⅱ～Ⅳ组为试验组，饲喂试验日粮，即在等能等氮条件下分别用10％、15％、20％的大薯替代玉米。试验结果表明，经过2周饲养试验，除对胸肌48h滴水损失率和胸肌脂肪含量影响显著外，大薯替代饲粮中不同比例玉米对文昌鸡生长性能、屠宰性能及其他肉品质指标影响均不显著（P〉0．05）；当饲养时间达到4周时，各处理组间胸肌48h滴水损失差异显著（P〈0．05），而对其他测定指标均无显著影响（P〉0．05）。说明大薯可以部分替代文昌鸡日粮中的玉米作为能量饲料使用，其替代比例可达玉米含量的20％。A total of 288 healthy Wenchang chickens at 5{） days of age with similar body weight were randomly di- vided into 4 different treatments with 4 replicates of 18 chickens each.Control group was fed basal corn-soybean meal di- et, Ⅱ - Ⅳ treatments were fed experimental diet in which corn was substituted by different ratio of Dioscorea alata L. （10%, 15%, 20%）under equal dietary energy and nitrogen conditions.The results showed that：growth performance, slaugh- ter performance and meat quality were not significantly affected by diets （P 〉 0.05）,but 48 h drip loss of muscle and fat content of pectoralis were significantly affected after two week trial period （P 〈 0.05）.After four weeks trial period,the dif- ference of 48 h drip loss of muscle were significant among all treatments （P 〈 0.05）, However, no signiticant difference was observered in other indices among four treatments （P 〉 0.05）.So Dioscorea alata could partly replace corn in Wenchang chicken diet,ratio of corn substituted by Dioscorea alata L. could reach 20%.

关 键 词：大薯 玉米 文昌鸡 生长性能 屠宰性能 肉品质 

分 类 号：S816.4[农业科学—饲料科学]