期刊论文

中文

动物营养学报

1006-267X

2007

19

4

366-371

10.3969/j.issn.1006-267X.2007.04.009

国家教育部重点科研项目； 湖北省自然科学基金项目（编号:2003ABA125）；

本校为第一机构

本文旨在研究精胺(spermine)对断奶仔猪小肠组织形态与功能的影响.试验选取来源一致、体重相近的21日龄断奶仔猪30头,随机分为5组,每组6个重复,分别口腔灌服0、300、600、900和1 200μmol/d的精胺,连续灌服3 d.试验期为14 d.试验结束末,屠宰全部仔猪,取小肠组织样品,分析小肠黏膜形态、蛋白质含量、DNA和RNA含量以及双糖酶活性.于试验第7天和第14天灌服D-木糖,60 min后采血,测定血清中D-木糖含量.结果表明:(1)灌服1 200 μmol/d的精胺可提高小肠绒毛高度、降低隐窝深度(P＜0.05);(2)1 200 μmol/d的精胺组空肠麦芽糖酶活性显著高于对照组(P＜0.05);(3)断奶后第7天,精胺各组与对照组血清D-木糖含...

To study the effects of spermine on histological morphology and function of small intestine in weaned piglets, thirty weaned piglets of 21-day old, with the same genetic origin and similar body weight, were selected and randomly divided into five treatments, each treatment five replicates, infused respectively with spermine of 0、300、600、900、1 200 μmol/d. Villus length and crypt depth, mucosal protein, DNA and RNA content, activities of disaccharidase. Piglets were infused with D-Xylose on day 7 and day 14, sixty minutes later, blood sample...