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不同饲喂条件对鳜淀粉酶活性的影响 被引量:1

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摘要 鳜的胰脏是淀粉酶主要分泌器官,肠粘膜细胞也可分泌一些糖酶。各种饲喂条件下鳜淀粉酶最适pH值均为7.2;最适底物浓度可为2%或1%;最适温度,摄食人工饵料鳜除肠粘膜为30℃外,胰脏、肠内容物及幽门垂均为39℃;摄食天然饵料鳜除肠粘膜为33℃外,其余均为30℃。季节对鳜淀粉酶活性的影响表现为在最适温度情况下波动幅度平缓,自然温度情况下波动大。摄食天然饵料鳜胰脏淀粉酶活性要高于同等温度下摄食人工饵料鳜的,其余则是摄食人工饵料鳜的较高,表现出鳜消化酶的分泌对饲料具有一定的适应性。
出处 《水利渔业》 北大核心 2003年第3期1-4,共4页 Reservoir Fisheries
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