苜蓿草粉对仔猪生长性能、肠道抗氧化指标和肠道形态结构的影响  

The effects of alfalfa meal on growth performance,intestinal antioxidant indicators,and intestinal morphology of piglets

作　　者：李颖 任丽萍 远永来 LI Ying;REN Liping;YUAN Yonglai(Jinan Animal Disease Prevention and Control Center,Jinan,Shandong Province 250099,China;Agriculture and Rural Bureau of Xihua County,Zhoukou,Henan Province 466600,China)

机构地区：[1]济南市动物疫病预防与控制中心,山东济南250099 [2]西华县农业农村局,河南周口466600

出　　处：《中国饲料》2024年第6期18-21,共4页China Feed

摘　　要：文章旨在探究苜蓿草粉对仔猪生长性能、肠道抗氧化指标和肠道形态结构的影响。试验将320只日龄(28±2)相近、健康状况良好的仔猪分为4组,每组8个重复,每个重复10头,分别使用0%、3%、6%和9%的苜蓿草粉替代麸皮为各试验组日粮,试验共计76 d,其中6 d的适应期和70 d的正式试验。结果表明,日粮添加6%和9%的苜蓿草粉组仔猪终末体重显著提高3.2%和3.5%(P<0.05),平均日增重显著提高3.6%和4.3%(P<0.05),日粮添加9%的苜蓿草粉组仔猪料重比显著降低6.1%(P<0.05);此外,苜蓿草粉对仔猪采食量无显著影响(P>0.05)。6%和9%的苜蓿草粉组仔猪十二指肠GSH-Px酶活性显著高于其他各组(P<0.05),日粮添加苜蓿草粉显著提高仔猪空肠T-AOC能力(P<0.05);补充6%和9%的苜蓿草粉组显著提高仔猪回肠GSH-Px和SOD活性,提高T-AOC能力(P<0.05),此外,日粮添加苜蓿草粉对仔猪十二指肠SOD、CAT活性和T-AOC能力,对空肠GSH-Px、SOD和CAT活性,对回肠CAT活性均无显著影响(P>0.05)。6%和9%的苜蓿草粉组仔猪十二指肠V/C值显著高于其他各组(P<0.05);6%和9%的苜蓿草粉组仔猪空肠绒毛高度和V/C值显著高于其他各组(P<0.05);日粮添加6%的苜蓿草粉组仔猪回肠绒毛高度和V/C值显著高于其他组(P<0.05);此外,日粮添加苜蓿草粉对仔猪十二指肠绒毛高度和隐窝深度,空肠隐窝深度,回肠隐窝深度均无显著影响(P>0.05)。综上所述,添加苜蓿草粉能有效增强仔猪肠道抗氧化性能,改善其肠道结构并促进其生长,在本试验条件下,苜蓿草粉最适替代量6%。To explore the effects of alfalfa powder on the growth performance,intestinal antioxidant indicators,and intestinal morphology of piglets.320 piglets with similar age(28±2)and good health were divided into 4 groups,with 8 replicates in each group,and 10 piglets were fed with 0%,3%,6%,and 9%alfalfa meal instead of bran for each experimental group.The experiment lasted for 76 days in total,including 6 days of adaptation period and 70 days of formal experiment.The results show that the addition of 6%and 9%alfalfa meal to the diet significantly increased the final body weight of piglets by 3.2%and 3.5%(P<0.05);The average daily weight gain of piglets in the group with 6%and 9%alfalfa meal added to the diet significantly increased by 3.6%and 4.3%(P<0.05);The feed to weight ratio of piglets significantly decreased by 6.1%(P<0.05)in the group with 9%alfalfa meal added to the diet;In addition,alfalfa meal had no significant effect on the feed intake of piglets(P>0.05).The GSH-Px enzyme activity in the duodenum of piglets in the 6%and 9%alfalfa meal groups was significantly higher than that in other groups(P<0.05).Adding alfalfa meal to the diet significantly improved the T-AOC ability of piglets in the jejunum(P<0.05)and significantly reduced the MDA content in the jejunum(P<0.05);The supplementation of 6%and 9%alfalfa meal groups significantly increased the activity of GSH-Px and SOD in the ileum of piglets,and increased the T-AOC ability(P<0.05).In addition,the addition of alfalfa meal to the diet had no significant effect on the activity of SOD,CAT and T-AOC in the duodenum of piglets,GSH-Px,SOD and CAT in the jejunum,and CAT activity in the ileum(P>0.05).The duodenal V/C values of piglets in the 6%and 9%alfalfa meal groups were significantly higher than those in other groups(P<0.05);The villus height and V/C value of the piglets in the 6%and 9%alfalfa meal groups were significantly higher than those in the other groups(P<0.05);The ileal villus height and V/C value of piglets in the group with 6%alfalfa meal added to

关 键 词：苜蓿草粉 断奶仔猪 生长性能 肠道抗氧化 肠道形态 

分 类 号：S828[农业科学—畜牧学]