摘要
文章旨在评价饲粮中添加紫花苜蓿多糖对仔猪生长性能及小肠形态的影响。试验选取100头体重接近的28日龄断奶仔猪,随机分为对照组和试验1、2、3组,适应期7d,期间饲喂基础饲粮,正式试验时试验组分别在对照组基础饲粮中添加0.025%、0.05%、0.075%的紫花苜蓿多糖,处理42d。结果发现,紫花苜蓿多糖处理组仔猪平均末重、ADG显著提高(P<0.05),FCR降低(P<0.05),而ADFI无显著变化(P>0.05)。相比于对照组,试验1、2、3组仔猪平均末重分别增加7.8%、11.6%、10.2%(P<0.05),ADG分别增加12.4%、18.2%、15.9%(P<0.05),FCR显著降低10.1%、12.5%、10.2%(P<0.05)。同时,饲粮中添加紫花苜蓿多糖显著改变小肠肠道形态,相比对照组,试验2、3组仔猪十二指肠V/C分别降低8.9%、7.7%(P<0.05);试验2、3组仔猪空肠VH分别增加8.3%、7.0%(P<0.05),CD分别降低8.8%、7.7%(P<0.05),试验1、2、3组V/C分别增加7.6%、18.8%、15.9%(P<0.05)。除此之外,试验2、3组仔猪回肠VH较对照组分别增加9.4%、6.2%(P<0.05),CD分别降低10.0%、9.6%(P<0.05),试验1、2、3组V/C分别增加10.4%、21.5%、17.5%(P<0.05)。结果表明,饲粮中添加紫花苜蓿多糖显著改善仔猪小肠形态,促进其生长发育,添加量为0.05%时效果最佳。
The study was to explore the effects of adding alfalfa polysaccharides on growth performance and intestinal morphology in piglets.A total of 100 weaned piglets of 28 days old with close weight were divided into 4 groups.During the adaptation period of 7 days,the basal diet was fed.During the formal test,the experimental group added 0.025%、0.05%、 0.075% alfalfa polysaccharides to the control diet for 42 days.Results:The average terminal weight,ADG,and FCR of the experiment piglets were significantly increased(P < 0.05),but ADFI did not(P > 0.05).The average terminal weight of piglets in groups 1,2,and 3 higher by 7.8%,11.6%,and 10.2%(P < 0.05),and ADG higher by 12.4%,18.2%,and 15.9%,(P < 0.05).FCR was lower by 10.1%,12.5%,and 10.2%(P < 0.05).At the same time,the addition of alfalfa polysaccharide in the diet significantly changed the intestinal morphology of the small intestine.About the duodenum,- V/C of in the group1,2 were lower by 8.9% and 7.7%(P < 0.05).The VH of jejunal higher by 8.3% and 7.0%(P < 0.05),and the CD lower by 8.8% and 7.7%,(P < 0.05).and the V/C of the groups 1,2 and 3 higher by 7.6%,18.8%,15.9%(P < 0.05).In addition,the ileal VH of the groups2,3 higher by 9.4% and 6.2%(P < 0.05),and the CD lower by 10.0% and 9.6%(P < 0.05).The V/C of the 1,2,3 groups increased by 10.4%,21.5%,and 17.5%,(P < 0.05).It indicated that the addition of alfalfa polysaccharide to the diet significantly improved the morphology of the small intestine and promoted its growth.,the best effect was obtained when the dosage was 0.05%.
作者
文贵辉
杨海
刘增再
WEN Guihui;YANG Hai;LIU Zengzai(Hunan University of Environment and Biology, Hengyang, Hunan Province 421005, China;Hengyang Normal University, Hengyang, Hunan Province 421000, China;Changsha Center for Animal Disease Prevention and Control,Changsha,Hunan Province, 410000,China)
出处
《中国饲料》
北大核心
2019年第16期40-43,共4页
China Feed
关键词
断奶仔猪
紫花苜蓿多糖
生长性能
肠道形态
发育
piglets
alfalfa polysaccharide
growth performance
intestinal morphology
development
