断奶羔羊直线育肥实验报告  

The Fast Fattening Report of Early-weaned Lambs

作　　者：丛玉政 何星 张正锋 曹道法 CONG Yu-zheng;HE Xing;ZHANG Zheng-feng;CAO Dao-fa(Shandong Aohua Ecological Agriculture and Animal Husbandry Co.,Ltd.,Tengzhou Shandong 277500,China;College of Animal Science and Technology,Northwest A&F University).)

机构地区：[1]山东奥华生态农牧有限公司,山东滕州277500 [2]西北农林科技大学动物科技学院

出　　处：《畜牧兽医杂志》2020年第2期73-75,共3页Journal of Animal Science and Veterinary Medicine

摘　　要：本实验对杜寒杂交F1羔羊早期断奶后至6月龄进行了直线育肥实验。实验结果6月龄体重平均达到54.11±8.79 kg,出生到6月龄平均日增重达到278 g,正试期间四个月平均日增重达302 g;结果显示,生长发育从出生到5月龄期间的生长势比较强,呈逐渐上升的趋势,进入六月龄开始下降;饲料报酬随着月龄的增加,饲料报酬也渐渐变低,进入6月龄饲料报酬更低。料肉比3、4、5、6月龄分别是1.98∶1,2.59∶1,2.65∶1和3.51∶1,3至6月龄料肉比平均达到了2.72∶1,达到了国内先进水平;从全程各月的日增重来看,断奶前后对羔羊的应激较大,从断奶到满2个月龄这13 d平均日增重为158 g。The study focuses on fast fattening method of Du*Han hybrid F1 from early-weaned lamb to 6-month-old.The result shows that average weight of 6 months'lamb is 54.11±8.79kg.The average daily gain from birth is 278g,and the average daily gain of the four months'experimental period is 302g.The result also shows that from birth to 5-month-old,the lambs grow well,and the growth rate gradually increases.But the growth rate becomes lower from the 6th month.The feed conversion ratio decreases gradually as the age increases,and it becomes even lower from the beginning of the 6th month.The feed conversion ratios from 3rd month to 6th month are 1.98:1,2.59:1,2.65:1 and 3.51:1,respectively and the average ratio of these four months is 2.72:1,which reaches the domestic advanced standard.From the whole daily increase in weight,the greater stress on the lamb appears before and after weaning.The average daily gain is 158 grams during 13 days from weaning to 2-month-old.

关 键 词：早期断奶 直线育肥 日增重 生长规律 料肉比 应激 

分 类 号：S821.45[农业科学—畜牧学]