半滑舌鳎仔稚鱼消化酶活性的变化

被引：21

作者：

常青 ^{[1
]}

张秀梅 ^{[1
]}

陈四清 ^{[2
]}

梁萌青 ^{[2
]}

刘寿堂 ^{[3
]}

机构：

[1] 中国海洋大学

[2] 中国水产科学研究院黄海水产研究所

[3] 黄海水产股份有限公司

来源：

海洋科学进展 | 2005年 / 04期

关键词：

半滑舌鳎; 仔稚鱼; 消化酶;

D O I：

暂无

中图分类号：

S917.4 [水产动物学];

学科分类号：

0908 ;

摘要：

对半滑舌鳎不同发育阶段主要消化酶(酸性蛋白酶、碱性蛋白酶、淀粉酶、脂肪酶)以及与消化吸收相关的碱性磷酸酶的活性变化进行了测定。结果表明,半滑舌鳎在仔鱼发育早期即可检出酸性蛋白酶和碱性蛋白酶的活力,碱性蛋白酶的2个极低值分别出现在仔鱼开口期和仔稚鱼的转变期,从孵化后23 d左右胃腺出现时,酸性蛋白酶的活性开始明显升高。早期仔鱼体内表现出较强的淀粉酶活性,孵化后12 d其活性急剧下降,并一直保持较低的比活力状态。脂肪酶的活性在半滑舌鳎早期仔鱼体内一直较低,进入稚鱼期后开始缓慢上升。碱性磷酸酶活性在变态结束后出现大幅度的升高,这标志着肠组织结构和肠道消化功能的完善。

引用

页码：472 / 476

页数：5

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