| 水温对细鳞鱼幼鱼消化酶活性的影响 |
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| 引用本文： | 刘洋,牟振波,徐革锋,李永发.水温对细鳞鱼幼鱼消化酶活性的影响[J].水产学杂志,2011,24(3):6-9. |
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| 作者姓名： | 刘洋 牟振波 徐革锋 李永发 |
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| 作者单位： | 中国水产科学研究院黑龙江水产研究所,黑龙江省冷水f生鱼类种质资源及增养殖重点开放实验室,中国水产科学研究院冷水性鱼类增养殖生物学与鱼类生理学重点开放实验室,黑龙江哈尔滨150070 |
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| 基金项目： | 农业公益性行业专项(201003055); 中央级公益性科研院所基本科研业务费专项(201102) |
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| 摘 要： | 1在水温6℃、14℃、22℃下和180×60×50cm控温水族箱中,饲养初始鱼体质量11.3±0.94g的细鳞鱼Brachymystax lenok幼鱼21d,测定了幼鱼消化器官（胃、幽门盲囊、肝脏和肠）中的蛋白酶、淀粉酶和脂肪酶的活力。结果表明：水温14℃下胃蛋白酶活性最高,其次为水温6℃时,22℃时消化酶活性最低,...
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| 关 键 词： | 细鳞鱼 水温 消化酶活性 |
Effects of water temperature on activities of digestive enzymes in juvenile lenok Brachymystax lenok |
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| LIU Yang,MOU Zhen-bo,XU Ge-feng,LI Yong-fa.Effects of water temperature on activities of digestive enzymes in juvenile lenok Brachymystax lenok[J].Chinese Journal of Fisheries,2011,24(3):6-9. |
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| Authors: | LIU Yang MOU Zhen-bo XU Ge-feng LI Yong-fa |
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| Institution: | LIU Yang,MOU Zhen-bo,XU Ge-feng,LI Yong-fa(Heilongjiang River Fisheries Research Institute,Chinese Academy of Fishery Sciences,Key Opening Laboratory of Cold-Water Fish Germplasm Resources and Aquaculture & Enhancement,Heilongjiang Province,Key Opening Laboratory of Cold-Water Fish Enhancement Biology & Physiology,Harbin 150070,China) |
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| Abstract: | A 21-day feeding experiment was carried out to investigate the effect of water temperature on activities of digestive protease,amylase and lipase in stomach,pyloric caeca,liver,and gut in juvenile lenok Brachymystax lenok with body weight of 11.3±0.94g cultured and fed to satiation twice（08：00,and 15：00）a day）at water temperature of ：6℃,14℃,or 22℃.The results showed that： the minimal protease activity was observed in the stomach at 22℃,significantly lower than that in the other groups（P 0.05）.The maximal activities of lipase were found in the gut and pyloric caeca at 14℃（P 0.05）.There were significantly higher activities of amylase were showed in the gut and pyloric caeca than those in the stomach and liver at 14℃ and 22℃（P 0.05）.The maximal activities of amylase were occurred in all examined digestive organs at14℃,and there were significantly lower amylase activities in the liver and gut at 6℃than that at 14℃（P 0.05）. |
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| Keywords: | Brachymystax lenok water temperature digestive enzyme activity |
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