枸芪多糖对育肥猪生长性能、胴体性状和肠道组织形态的影响  

Effects of GouQi Polysaccharide on growth performance,carcass traits and intestinal morphology of growing-finishing pigs

作　　者：金娜 邹闻书 高倩 陈长增 刘凤华[1] JIN Na;ZOU Wenshu;GAO Qian;CHEN Changzeng;LIU Fenghua(College of Animal Science and Technology,Beijing University of Agriculture,Beijing 102206,China)

机构地区：[1]北京农学院动物科学技术学院

出　　处：《北京农学院学报》2020年第1期55-59,共5页Journal of Beijing University of Agriculture

基　　金：北京市科技计划课题(D171100002117002,Z171100004517011);公益性行业(农业)科研专项课题(201403051-07)

摘　　要：【目的】旨在研究枸芪多糖对育肥猪生长性能、胴体性状和肠道组织形态的影响。【方法】选用180头80日龄健康育肥猪,随机分为2个处理组,每组6个重复,每个重复15头猪,对照组饲喂基础日粮,试验组在基础日粮中添加1‰枸芪多糖,试验期90d。【结果】在日粮中添加1‰枸芪多糖,使育肥猪平均日增重显著升高(P<0.05),料重比显著降低(P<0.05)。试验组的屠宰率和眼肌面积与对照组相比显著增加(P<0.05)。与对照组相比,试验组空肠、回肠的绒毛高度和绒毛高度/隐窝深度显著增加(P<0.05),十二指肠、空肠、回肠的隐窝深度降低,但差异不显著(P>0.05);肌层厚度显著增加(P<0.05)。【结论】1‰枸芪多糖能提高育肥猪的生长性能和胴体性状,通过改善肠道组织形态结构,促进肠黏膜的发育,增强肠道的消化吸收功能,使饲料利用率提高,从而提高育肥猪的生长发育。【Objective】This experiment was conducted to investigate the effects of GouQi Polysaccharide on growth performance,carcass traits and intestinal morphology of growing-finishing pigs.【Methods】A total of 180 healthy growing-finishing pigs aged 80 days were randomly divided into 2 groups with 6 replicates per group and 15 pigs per replicate.Pigs in control group were fed a basal diet,and the others were fed diets supplemented with 1‰ GouQi Polysaccharide in a basal diet.The experiment lasted for 90 days.【Results】Diet added 1‰ GouQi Polysaccharide significantly increased average daily gain(P<0.05),decreased feed/gain(P<0.05).The slaughter rate and loin eye area of the experimental group were significantly increased than the control group(P<0.05).Compared with control group,the villus height and villus height/crypt depth ratio of jejunum and ileum in experimental group were significantly increased(P<0.05),the crypt depth of duodenum,jejunum and ileum was decreased(P>0.05),muscle thickness was increased(P<0.05).【Conclusion】Diet added 1‰ GouQi Polysaccharide improved growth performance and carcass traits of growing-finishing pigs.By improving the intestinal morphology,promoting the development of intestinal mucosa,enhancing the digestive and absorption function of intestine,the feed utilization rate was improved.Thus,GouQi Polysaccharide improved the growth and development of growing-finishing pigs.

关 键 词：枸芪多糖 育肥猪 生长性能 胴体性状 肠道组织形态 

分 类 号：S853.7[农业科学—临床兽医学]