| 不同生长阶段兰州鲇消化酶活性的比较研究 |
| Comparison of Digestive Enzyma Activity in Different Age of Siluru Lanzhouensis |
| 投稿时间：2007-10-08 |
| DOI： |
| 中文关键词:兰州鲇 蛋白酶 淀粉酶 脂肪酶 |
| 英文关键词:Silurus lanzhouensis protease amylase lipase |
| 基金项目: |
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| 中文摘要: |
| 测定了不同生长阶段兰州鲇（Ｓｉｌｕｒｕｓｌａｎｚｈｏｕｅｎｓｉｓ）胃、肝胰脏、前肠、中肠、后肠的蛋白酶、淀粉酶和脂肪酶的活性。结果表明，兰州鲇蛋白酶活性大小为：前肠＞中肠＞后肠＞肝胰脏＞胃，阶段１［体重（５１．９±６．０）ｇ］＞阶段２［体重（２２８．６±１６．６）ｇ］＞阶段３［体重（４４８．９±２６．５）ｇ］，且差异显著；淀粉酶活性：肝胰脏＞胃＞前肠＞中肠＞后肠，阶段１＞阶段２＞阶段３，差异显著；脂肪酶活性大小为：后肠＞中肠＞前肠＞肝胰脏＞胃，但各阶段差异不显著。随着年龄的增长，兰州鲇对蛋白质和碳水化合物的消化能力逐渐减弱。
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| 英文摘要: |
| Activities of protease, amylase and lipase from stomach, hepatopancreas and gut of Silurus lanzhouensis in different ages were determined. The results showed that protease activities ranged as follows： foregut 〉 midgut 〉 hindgut 〉 hepatopancreas 〉 stomach, stage 1 [ body weight （ 51.9 ± 6.0 ） g ] 〉 stage 2 [ body weight （ 228.6 ± 16. 6）g] 〉 stage 3[body weight（448.9±26.5）g]. The protease activities in the different life-history stages had significant differences. The amylase activities ranged as follows： hepatopancreas 〉 stomach 〉 foregut 〉 midgut 〉 hindgut, stagel 〉 stage2 〉 stage3. The amylase activities in the different life-history stages had significant differences. The lipase activities ranged as follows： hindgut 〉 midgut 〉 foregut 〉 hepatopancreas 〉 stomach, stagel 〉 stage2 〉 stage3. The lipase activities in the different life-history stages had no significant differences. The digestibilities to protein and carbohydrate were decreasing with fish growing. |
| 王远吉,任晓月,冯占虎,齐昂,邱小琮.2009.不同生长阶段兰州鲇消化酶活性的比较研究[J].水生态学杂志,30(1):54-57. |
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