开食料物理形态对羔羊生长发育的影响  

Effects of physical form of starter feed on growth and development of lambs

作　　者：刘鹏 李勇[1] 张成新 蔡小芳 郭艳丽[1] LIU Peng;LI Yong;ZHANG Chengxin;CAI Xiaofang;GUO Yanli(College of Animal Science and Technology,Gansu Agricultural University,Lanzhou,Gansu Province 730070,China)

机构地区：[1]甘肃农业大学动物科学技术学院,甘肃兰州730070

出　　处：《中国饲料》2020年第21期35-38,共4页China Feed

基　　金：国家自然科学基金项目(31860654)。

摘　　要：试验选取出生体重为(4.12±0.77)kg的陶赛特(公)×湖羊(母)杂交一代公羔共16只,分别饲喂两种物理形态(粉料和颗粒料)的开食料,研究开食料物理形态对羔羊生长发育的影响。羔羊0~5日龄随母羊哺乳,6日龄开始按体重的2%饲喂代乳粉,10日龄开始诱饲开食料,开食料自由采食,自由饮水,35日龄断代乳粉,56日龄屠宰。结果表明:采食颗粒料组羔羊的胸围(P=0.029)、腹围(P=0.022)和瘤胃重(P=0.012)显著优于粉料组。颗粒料组体重、平均日增重、平均日采食量和胴体重有优于粉料组的趋势。这些结果说明,羔羊开食料以颗粒料的饲喂效果优于粉料。A total of 16 male lambs of Dorset(male)×Hu sheep(female)with similar birth weight[(4.12±0.77)kg]were selected and fed with two starter feeds(meal starter and pelleted starter)to study the effect of physical form of starter feeds on the growth and development of lambs.The lambs were breast-fed with the ewes during 0~5 days after birth.From 6~35 days of age,the lambs were bottle fed milk replacer at 2%of body weight at birth.Starter feed were fed to lambs at 10 d,libitum and clean fresh water being readily available.Lambs were slaughtered at 56 d.The results showed that the chest circumference(P=0.029),abdominal circumference(P=0.022)and rumen weight(P=0.012)of lambs fed pelleted starter feed were significantly better than those fed meal starter feed.Pelleted treatment tended to increase the body weight,average daily gain,average daily feed intake and carcass weight.The results indicated that the feeding effect of pelleted starter feed for lambs was better than that of meal starter.

关 键 词：开食料 物理形态 羔羊 生长发育 

分 类 号：S815.2[农业科学—畜牧学]