动物营养学报Issue(5)：1347-1352,6.DOI:10.3969/j.issn.1006-267x.2014.05.028
谷氨酰胺及其前体物对松浦镜鲤肠道消化酶活性及肠道形态的影响
Effects of Glutamine and Its Precursors on Intestinal Digestive Enzyme Activity and Intestinal Morphology of Songpu Mirror Carp (Cyprinus carpio specularis)
摘要
Abstract
This experiment was aimed to study the effects of glutamine ( Gln) and its precursors on intestinal digestive enzyme activity and intestinal morphology of Songpu mirror carp ( Cyprinus carpio specularis) .A to-tal of 270 Songpu mirror carp with an initial body weight of (97.33±6.74) g were randomly divided into 6 groups with 3 replicates and 15 fish per replicate.The fish in the 4 experimental groups were fed plant protein meal ( PM) with 1.5%glutamine ( Gln) ,α-ketoglutaric acid ( AKG) , ornithine-α-ketoglutarate ( OKG) and glutamic acid ( Glu) , respectively, taking the fish meal ( FM) and PM as control groups.The experiment las-ted for 60 days.The results showed that the Gln and its precursors had no significant effects on protease activity in foregut and midgut and lipase activity in midgut and hindgut (P>0.05).The amylase activity in foregut of AKG group and Gln group was significantly higher than that of FM group and PM group ( P<0.05) .The lipase activity in foregut of Glu group and AKG group was significantly higher than that of OKG group and FM group (P<0.05).The fold height in midgut and hindgut had no significant difference among groups (P>0.05).The muscular thickness of AKG group was significantly higher than that of FM group (P<0.05).In conclusion, Gln and its precursors can improve the foregut lipase and amylase activities.关键词
松浦镜鲤/谷氨酰胺/谷氨酰胺前体物/消化酶/肠道形态Key words
Songpu mirror carp/glutamine/glutamine precursors/digestive enzyme/intestinal morphology分类
农业科技引用本文复制引用
李晋南,徐奇友,王常安,罗亮,赵志刚..谷氨酰胺及其前体物对松浦镜鲤肠道消化酶活性及肠道形态的影响[J].动物营养学报,2014,(5):1347-1352,6.基金项目
现代农业产业技术体系建设专项资金资助（ CARS-46）；中央级公益性科研院所基本科研业务费专项 （）
