不同生长阶段宝石鲈消化酶活性的初步研究  

Preliminary study on activities of digestive enzymes of Scorturm barcoo at different growth stages

作　　者：安丽[1] 张龙岗[1] 董学飒[1] 杨玲[1] 付佩胜[1] 

机构地区：[1]山东省淡水水产研究所,山东省淡水水产遗传育种重点实验室,济南250117

出　　处：《淡水渔业》2012年第1期85-88,共4页Freshwater Fisheries

基　　金：山东省农业良种工程项目“高值名优淡水养殖品种的选育”课题

摘　　要：测定了出膜后30 d、70 d、120 d至成鱼4种规格,体重分别为(2.29±0.49)g、(23.16±4.23)g、(88.06±6.73)g、(270.26±9.17)g的宝石鲈(Scorturm barcoo)胃、肝胰脏、前肠、中肠、后肠的淀粉酶、胃蛋白酶和脂肪酶的活性。结果表明,随着宝石鲈的生长,淀粉酶在各生长阶段活力均很小,肝胰脏、前肠和后肠中的淀粉酶活力表现出逐渐增大的趋势;胃中的胃蛋白酶活性表现为逐渐增高,至规格3后胃蛋白酶活性趋于稳定;肠道是脂肪消化的主要场所,其中前肠脂肪酶变化趋势表现为先上升后下降,在前肠脂肪酶下降后中肠脂肪酶升高,起到了继续消化脂肪的作用。Activities of amylase, pepsin and lipase in stomach, hepatopancreas and gut of Scorturm barcoo were studied at four different growth stages： 30, 70, 120 d after hatching out and adult fish, the body weight were （2. 29 ±0. 49）, （23. 26±4. 23）, （88. 06 ±6. 73）, （270. 26 ±9. 17）, respectively. Results showed that with the growth of S. bareoo, the amylase activity was low at all stages, and it increased gradually in hepatopancreas, foregut and hindgut; pep- sin activity in stomach increased gradually and remained stable after stage 3 ; the fat was mainly digested in the gut, lipase activity in foregut firstly increased, and then decreased, after that, lipase activity in midgut increased, which continue to digest fat.

关 键 词：宝石鲈 消化酸活性 胃蛋白酶 淀粉酶 脂肪酶 

分 类 号：S917[农业科学—水产科学] Q48[生物学—生理学]