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学科主题: Fisheries
题名: Effects of light intensity on molting, growth, precocity, digestive enzyme activity, and chemical composition of juvenile Chinese mitten crab Eriocheir sinensis
作者: Li, Xiaowu ; Li, Zhongjie ; Liu, Jiashou ; Zhang, Tanglin ; Zhang, Chaowen
通讯作者: Liu, JS, Chinese Acad Sci, State Key Lab Freshwater Ecol & Biotechnol, Inst Hydrobiol, 7 S Donghu Rd, Wuhan 430072, Hubei, Peoples R China ; jsliu@ihb.ac.cn
关键词: Chemical composition ; Enzyme activity ; Eriocheir sinensis ; Growth ; Light intensity ; Precocity
刊名: AQUACULTURE INTERNATIONAL
发表日期: 2011
卷: 19, 期:2, 页:301-311
收录类别: SCI
部门归属: [Li, Xiaowu; Li, Zhongjie; Liu, Jiashou; Zhang, Tanglin; Zhang, Chaowen] Chinese Acad Sci, State Key Lab Freshwater Ecol & Biotechnol, Inst Hydrobiol, Wuhan 430072, Hubei, Peoples R China; [Li, Xiaowu; Zhang, Chaowen] Chinese Acad Sci, Grad Univ, Beijing 100049, Peoples R China
资助者: National Natural Science Foundation of China [30830025]; National Scientific and Technological Supporting Program of China [2007BAD37B03, 2006BAD03B02]; Chinese Academy of Sciences [KSCX2-YW-N-47-06]; Ministry of Agriculture of China [200903048-04]
摘要: A 74-day growth trial was carried out to investigate the effects of light intensity on the juvenile Chinese mitten crab, Eriocheir sinensis, under semi-natural conditions. The experiment had three light intensity treatment groups, natural light (NL), middle light (ML), and low light (LL), as light intensity became weaker. The results indicated that light intensity had no significant effect on molting interval and molting frequency but did have a significant effect on the molting weight gain of the crab. Molting weight gain in group NL was significantly higher than that in group LL (P < 0.05). Specific growth rate in weight (SGRw) and in carapace width (SGRcw), weight gain, and final body weight were significantly affected by light intensity (P < 0.05). No significant difference was detected in survival between groups (P > 0.05). The precocious rate in groups NL, ML, and LL was 26.14, 15.48, and 17.14%, respectively. The precocious rate in group NL was significantly higher than that in groups ML and LL (P < 0.05). Chemical composition of the crab body was significantly affected by light intensity, but the activity of alkaline phosphatase, trypsin, and pancreatic lipase was not significantly affected by light intensity. The results indicated that the submitted light intensity was useful in reducing the precocious rate without affecting the normal growth of juvenile E. sinensis.
语种: 英语
WOS记录号: WOS:000288795700007
ISSN号: 0967-6120
Citation statistics:
内容类型: 期刊论文
URI标识: http://ir.ihb.ac.cn/handle/342005/15610
Appears in Collections:淡水生态学研究中心_期刊论文

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Li, Xiaowu; Li, Zhongjie; Liu, Jiashou; Zhang, Tanglin; Zhang, Chaowen.Effects of light intensity on molting, growth, precocity, digestive enzyme activity, and chemical composition of juvenile Chinese mitten crab Eriocheir sinensis,AQUACULTURE INTERNATIONAL,2011,19(2):301-311
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