| 饥饿与再投喂及投喂频率对条石鲷幼鱼生长和消化酶活力的影响 |
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| 引用本文： | 宋国,彭士明,孙鹏,王建钢,尹飞,施兆鸿.饥饿与再投喂及投喂频率对条石鲷幼鱼生长和消化酶活力的影响[J].中国水产科学,2011,18(6). |
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| 作者姓名： | 宋国 彭士明 孙鹏 王建钢 尹飞 施兆鸿 |
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| 作者单位： | 1. 中国水产科学研究院东海水产研究所,农业部海洋与河口渔业资源与生态重点实验室,上海200090;上海海洋大学水产与生命学院,上海201306
2. 中国水产科学研究院东海水产研究所,农业部海洋与河口渔业资源与生态重点实验室,上海200090 |
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| 基金项目： | 浙江省公益技术研究农业项目，浙江省海洋与渔业种子种苗项目，浙江省重大科技专项重点项目 |
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| 摘 要： | 研究了饥饿与再投喂及不同投喂频率对条石鲷(Oplegnathus fasciatus)幼鱼生长和消化酶活力的影响.饥饿与再投喂的实验结果表明:条石鲷幼鱼体质量、蛋白酶(胃蛋白酶、胰蛋白酶)与脂肪酶活力随着饥饿时间的延长均呈现明显的下降趋势,体质量与蛋白酶活力在饥饿6d后与对照组表现出显著性差异(P＜0.05),脂肪酶活力在饥饿9d后才与对照组表现出显著性差异(P＜0.05),而淀粉酶活力在饥饿过程中呈波动性变化；恢复投喂后,除饥饿3d的幼鱼体质量、特定生长率与对照组无明显差异外,其他各处理组均明显低于对照组；蛋白酶与脂肪酶活力在恢复投喂后均有明显回升,且蛋白酶活力与对照组相比已无显著性差异,但较长时间的饥饿处理(9～12 d)并未使脂肪酶活力恢复至对照组水平.投喂频率实验的研究结果表明:随着投喂频率的增加,条石鲷幼鱼的特定生长率呈上升趋势,在投喂频率达到投喂2次/d后,条石鲷幼鱼的特定生长率、消化酶活力及肝体指数差异均不显著.结论认为,在本实验条件下,饥饿3d后再经投喂,条石鲷幼鱼具有完全补偿生长效应,但随着饥饿时间的延长补偿生长的效应逐渐降低.对条石鲷幼鱼而言,选择日投喂两次最合适.
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| 关 键 词： | 条石鲷 饥饿 再投喂 投喂频率 生长 消化酶 |
| 修稿时间： | 2011/11/12 0:00:00 |
Effects of starvation, refeeding, and feeding frequency on growth and digestive enzyme activity of Oplegnathus fasciatus |
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| SONG Guo,PENG Shiming,SUN Peng,WANG Jiangang,YIN Fei,SHI Zhaohong.Effects of starvation, refeeding, and feeding frequency on growth and digestive enzyme activity of Oplegnathus fasciatus[J].Journal of Fishery Sciences of China,2011,18(6). |
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| Authors: | SONG Guo PENG Shiming SUN Peng WANG Jiangang YIN Fei SHI Zhaohong |
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| Institution: | SONG Guo1,2,PENG Shiming1,SUN Peng1,WANG Jiangang1,YIN Fei1,SHI Zhaohong1,2 1.Key and Open Laboratory of Marine and Estuary Fisheries,East Sea Fisheries Research Institute,Chinese Academy of Fishery Sciences,Shanghai 200090,China,2.College of Aqua-life Science and Technology,Shanghai Fisheries University,Shanghai 201306 |
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| Abstract: | The aim of this study was to investigate the effects of starvation,refeeding,and feeding frequency on the growth and digestive enzyme activity of rock bream(Oplegnathus fasciatus).In the starvation and refeeding experiment,the body weight,proteinase(pepsin and trypsin),and lipase activities decreased with increasing star-vation time.There were significant differences in body weight and pepsin activity between the control group and the group starved for 6 days.After 9 days of starvation,the lipase activity w... |
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| Keywords: | Oplegnathus fasciatus starvation refeeding feeding frequency growth digestive enzyme |
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