饥饿和再投喂对千年笛鲷幼鱼消化酶活性的影响

区又君; 刘泽伟

饥饿和再投喂对千年笛鲷幼鱼消化酶活性的影响

区又君¹,
刘泽伟²

1.
中国水产科学研究院, 南海水产研究所, 广东, 广州, 510300
2.
中国水产科学研究院, 南海水产研究所, 广东, 广州, 510300;上海水产大学, 上海, 200090

基金项目: 深圳市科技计划项目2003-k3-132

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出版历程
- 收稿日期: 2005-05-16
- 修回日期: 2006-04-26

Effects of starvation and refeeding on digestive enzyme activity of Lutjanus sebae juveniles

OU You-jun¹,
LIU Ze-wei²

1.
South China Sea Fisheries Research Institute, Chinese Academy of Fisheries Sciences, Guangzhou 510300, China
2.
South China Sea Fisheries Research Institute, Chinese Academy of Fisheries Sciences, Guangzhou 510300, China;Shanghai Fisheries University, Shanghai 200090, China

摘要

摘要: 研究了饥饿和再投喂对千年笛鲷(Lutjanus sebae)幼鱼消化酶活性的影响.实验设计分成6组,分别饥饿处理0(对照),2,4,6,9和11 d,然后在饱食的条件下恢复投喂10 d.分别测定饥饿和恢复投喂过程中千年笛鲷幼鱼蛋白酶、淀粉酶、脂肪酶3种消化酶的活性.结果表明,在饥饿过程中,蛋白酶和脂肪酶活性下降明显,淀粉酶起伏较大;恢复投喂后,蛋白酶和脂肪酶活力与饥饿前相比都有所上升,但蛋白酶活力总体上仍低于同步取样对照组,脂肪酶活力总体上高于对照组水平,淀粉酶活力恢复到对照组水平,并且基本上没有变化.
- 千年笛鲷 /
- 幼鱼 /
- 饥饿 /
- 再投喂 /
- 消化酶 /
- 活性
Abstract: The specific activities of digestive enzy mes of Lutjanus sebae juveniles were determined during starvation and refeeding.The fish were starved for 0(control), 2, 4, 6, 9, 11d and refed for 10 d with enough food.The specific activities of protease, lipase and amy lase were determined during starvation and refeeding.The results showed that the specific activities of protease and lipase decreased clearly during the starvation, but the specific activity of amylase had a bigger wave;after refeeding, the specific activities of protease and lipase had a little rising, but the protease specific activity was lower than the control group while lipase was higher.The specific activity of amylase had no change compared with the control group.
- Lutjanus sebae /
- juvenile /
- starvation /
- refeeding /
- digestive enzyme /
- activity

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