膨化饲料对湖羊生长和屠宰性能的影响  

Effects of expanded feed on growth and slaughter performances of Hu sheep

作　　者：吴宇飞[1] 殷定忠[1] 柳卫国[1] 李灿 程晓红 邢汉 张曙光 刘小林 庞训胜[1] WU Yufei;YIN Dingzhong;LIU Weiguo;LI Can;CHENG Xiaohong;XING Han;ZHANG Shuguang;LIU Xiaolin;PANG Xunsheng(College of Animal Science,Anhui Science and Technology University,Fengyang 233100,China;Xiaolin Machinery Manufacturing Co.Ltd.of Linquan County,Linquan 236400,China)

机构地区：[1]安徽科技学院动物科学学院,安徽凤阳233100 [2]临泉小林机械制造有限公司,安徽临泉236400

出　　处：《畜牧与兽医》2021年第9期37-41,共5页Animal Husbandry & Veterinary Medicine

基　　金：安徽省教育厅自然科学研究项目(kj2013a081);安徽省牛羊产业技术体系项目(810409);临泉县牛羊产业创新资金。

摘　　要：为了解膨化饲料在羊生产中的应用效果,将12只健康2月龄断奶湖羊根据体重相近原则随机分为2组,即对照组和试验组,每组6只,3个重复,分别饲喂非膨化饲料和经膨化处理的饲料,预试期7 d,正试期100 d。结果:与对照组相比,试验组采食量和日增重分别提高16.15%和36.24%,料重比降低19.74%,但差异均不显著(P>0.05);屠宰率、净肉率和肉骨比均有所提高(P>0.05),前肢肉骨比、后肢肉重和后肢肉骨显著提高(P<0.05);试验组羊肉色黄度显著降低(P<0.05);空肠、回肠重量均有所提高(P>0.05),回肠长度显著提高(P<0.05);试验组羊脾脏系数显著提高(P<0.05)。试验表明,膨化饲料可促进湖羊小肠发育,改善屠体性状和肉色。This study was to understand the effect of application of expanded feed in sheep production. 12 two-month-old healthy weaned Hu lambs were obtained and randomly divided into two groups(the control group and the experimental group), with 6 lambs in each group, three replicates in each group and 2 lambs in each replicate. The lambs in the control group were fed with non-expanded feed, while the lambs in the experimental group were fed with expanded feed. The preliminary test lasted for 7 days, and the formal test for 100 days. The results showed that, compared with the control group, the average daily intake and daily gain of the lambs in the experimental group were increased by 16.15% and 36.24%, respectively(P>0.05), their feed-gain ratio was reduced by 19.74%(P>0.05), but the differences were not significant. The slaughter rate, net meat rate and meat-bone ratio of the experimental lambs were somewhat increased(P>0.05). Their meat-bone ratio of the forelimbs and hind limbs, and weight of the hind limbs were significantly higher(P<0.05). The yellowness of mutton of the experimental lambs was lower than that of the control lambs(P<0.05). The length and weight of their jejunum and ileum were increased, the length of their ileum was significantly higher than that of the control lambs(P<0.05). Their spleen index was higher(P<0.05). In conclusion, expanded feed could promote the development of the small intestine, and improve the carcass character and meat color of Hu sheep.

关 键 词：膨化饲料 湖羊 生长性能 屠宰性能 

分 类 号：S816.7[农业科学—饲料科学]