| 不同发育时期月鳢消化酶活性的变化 |
| Variation of Digestive Enzymes Activities in Different Development stages of Chinese Snakehead Channa asiatica |
| 投稿时间：2009-03-12 修订日期：2009-05-17 |
| DOI： |
| 中文关键词:月鳢 发育时期 消化酶 |
| 英文关键词:Channa asiatica, Development stage, Digestive Enzymes |
| 基金项目:湖北省教育厅重点科研项目（D200512007） |
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| 中文摘要: |
| 对月鳢稚鱼、幼鱼和成鱼的主要消化酶活性及分布进行了研究，结果如下：①随着鱼体发育和生长，月鳢消化系统各器官组织的各种消化酶活性不断地增强，尤其是蛋白酶和脂肪酶活性的发育更为明显。②月鳢幼鱼蛋白酶活性以肠组织最大，肝胰脏次之，胃组织最小，且肠组织和肝胰脏中该酶活性显著高于胃组织；胰蛋白酶活性以肝胰脏最大，胃组织和肠组织均表现较小；淀粉酶活性和脂肪酶活性均以胃组织最大，且显著大于肠组织和肝胰脏。③月鳢成鱼蛋白酶活性以中肠粘膜组织和后肠粘膜组织最高，前肠粘膜和肝胰脏次之，胃粘膜最低；胰蛋白酶活性以中肠粘膜组织和前肠粘膜最高，胃粘膜组织次之，肝胰脏小于胃粘膜，后肠粘膜组织的胰蛋白酶活性最小；淀粉酶活性以后肠粘膜组织和中肠粘膜组织最大，肝胰脏次之，胃粘膜组织和前肠粘膜组织最小；脂肪酶活性以胃粘膜组织最大，其他器官组织该酶活性均表现较小。 |
| 英文摘要: |
| Abstract: The activities and distribution of digestive enzymes in the juvenile, young and adult stages of Chinese Snakehead Channa asiatica were studied. The results showed that activities of digestive enzymes increased with the development of C. asiatica and these increasing trends were more prominent in protease and lipase. In the young stage of C.asiatica, the trypsin activity in hepatopancreas was significantly higher than that in stomach and in intestine and the protease activity in intestine and hepatopancreas were significantly higher than that in stomach. While , the amylase and lipase activities in stomach were significantly higher than those in intestine and hepatopancreas. In C. asiatica adults, the protease activity was highest in midgut mucosa with lowest in stomach mucosa. The trypsin activity was highest in midgut mucosa and lowest in hindgut mucosa. While, the amylase activity was highest in hindgut mucosa with lowest in foregut mucosa, and the lipase activity in the stomach mucosa was distinctly higher than that in other digestive organ or tissues. |
| 阮国良,杨代勤,严安生.2010.不同发育时期月鳢消化酶活性的变化[J].水生态学杂志,31(1):94-97. |
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