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学科主题: Fisheries; Marine & Freshwater Biology
题名: Effects of dietary lipid levels on growth, survival and lipid metabolism during early ontogeny of Pelteobagrus vachelli larvae
作者: Zheng, Keke1, 2; Zhu, Xiaoming1; Han, Dong1; Yang, Yunxia1; Lei, Wu1; Xie, Shouqi1, 3
通讯作者: Xie, SQ, Chinese Acad Sci, State Key Lab Freshwater Ecol & Biotechnol, Inst Hydrobiol, Wuhan 430072, Hubei, Peoples R China
关键词: Dietary lipid ; Lipases ; Pelteobagrus vachelli ; Larvae
刊名: AQUACULTURE
发表日期: 2010-02-01
DOI: 10.1016/j.aquaculture.2009.11.028
卷: 299, 期:1-4, 页:121-127
收录类别: SCI
文章类型: Article
部门归属: [Zheng, Keke; Zhu, Xiaoming; Han, Dong; Yang, Yunxia; Lei, Wu; Xie, Shouqi] Chinese Acad Sci, State Key Lab Freshwater Ecol & Biotechnol, Inst Hydrobiol, Wuhan 430072, Hubei, Peoples R China; [Zheng, Keke] Chinese Acad Sci, Grad Sch, Wuhan 430072, Hubei, Peoples R China; [Xie, Shouqi] Shanghai Univ, E Inst, Aquaculture Div, Shanghai, Peoples R China
WOS标题词: Science & Technology ; Life Sciences & Biomedicine
资助者: National Key Basic Research Program (NKBRP) [2009CB118702]; Ministry of Science and Technology of China [2007BAD37B]
类目[WOS]: Fisheries ; Marine & Freshwater Biology
研究领域[WOS]: Fisheries ; Marine & Freshwater Biology
摘要: A feeding trial was conducted to investigate the effect of dietary lipid level on darkbarbel catfish (Pelteobagrus vachelli) larvae during ontogeny with regard to growth, survival and lipid utilization. Larvae were fed, from mouth opening to 20 days after hatching (DAH), with five isonitrogenous microdiets containing different lipid levels (58, 74, 111, 151 and 199 g kg(-1) diet). Live prey (newly hatched Artemia, unenriched) was used as the control diet. The activities of lipoprotein lipase (LPL), hepatic lipase (HL), pancreatic lipase (PL) and LPL gene expression at 3 DAH (mouth opening), 6 DAH, 11 DAH and 20 DAH were examined. The results showed that dietary lipid significantly affected survival and growth of darkbarbel catfish larvae. At the end of the feeding trial, larvae fed diets containing 111 to 151 g lipid kg(-1) had significantly higher survival. Specific growth rate (SGR) of larvae fed the diet containing the highest dietary lipid (199 g kg(-1)) was significantly (P<0.05) lower while no significant differences were observed among other groups fed formulated diets. LPL mRNA level generally increased first with increasing dietary lipid levels and then reached a plateau at different sampling ages. A similar pattern was observed for LPL activity only at 6 DAH and 20 DAH. High dietary lipid increased HL activity at 20 DAH. At 6 DAH, highest PL activity was observed at 199 g lipid kg(-1) diet. Higher dietary lipid resulted in earlier elevated activities of LPL, PL and HL The specific activities of the above three enzymes and LPL mRNA expression were detected at mouth opening and were significantly influenced by age. The activities of these enzymes increased first and then decreased or reached a plateau during development. The results suggest that dietary lipid could modify lipid utilization during ontogeny of darkbarbel catfish larvae. (C) 2009 Published by Elsevier B.V.
英文摘要: A feeding trial was conducted to investigate the effect of dietary lipid level on darkbarbel catfish (Pelteobagrus vachelli) larvae during ontogeny with regard to growth, survival and lipid utilization. Larvae were fed, from mouth opening to 20 days after hatching (DAH), with five isonitrogenous microdiets containing different lipid levels (58, 74, 111, 151 and 199 g kg(-1) diet). Live prey (newly hatched Artemia, unenriched) was used as the control diet. The activities of lipoprotein lipase (LPL), hepatic lipase (HL), pancreatic lipase (PL) and LPL gene expression at 3 DAH (mouth opening), 6 DAH, 11 DAH and 20 DAH were examined. The results showed that dietary lipid significantly affected survival and growth of darkbarbel catfish larvae. At the end of the feeding trial, larvae fed diets containing 111 to 151 g lipid kg(-1) had significantly higher survival. Specific growth rate (SGR) of larvae fed the diet containing the highest dietary lipid (199 g kg(-1)) was significantly (P<0.05) lower while no significant differences were observed among other groups fed formulated diets. LPL mRNA level generally increased first with increasing dietary lipid levels and then reached a plateau at different sampling ages. A similar pattern was observed for LPL activity only at 6 DAH and 20 DAH. High dietary lipid increased HL activity at 20 DAH. At 6 DAH, highest PL activity was observed at 199 g lipid kg(-1) diet. Higher dietary lipid resulted in earlier elevated activities of LPL, PL and HL The specific activities of the above three enzymes and LPL mRNA expression were detected at mouth opening and were significantly influenced by age. The activities of these enzymes increased first and then decreased or reached a plateau during development. The results suggest that dietary lipid could modify lipid utilization during ontogeny of darkbarbel catfish larvae. (C) 2009 Published by Elsevier B.V.
关键词[WOS]: BREAM PAGRUS-MAJOR ; MARINE FISH LARVAE ; LIPOPROTEIN-LIPASE ACTIVITY ; VISCERAL ADIPOSE-TISSUE ; GENE-EXPRESSION ; HEPATIC LIPASE ; RAINBOW-TROUT ; SPARUS-AURATA ; MOLECULAR CHARACTERIZATION ; FORMULATED DIETS
语种: 英语
WOS记录号: WOS:000275033500017
ISSN号: 0044-8486
Citation statistics:
内容类型: 期刊论文
URI标识: http://ir.ihb.ac.cn/handle/342005/13552
Appears in Collections:淡水生态学研究中心_期刊论文

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作者单位: 1.Chinese Acad Sci, State Key Lab Freshwater Ecol & Biotechnol, Inst Hydrobiol, Wuhan 430072, Hubei, Peoples R China
2.Chinese Acad Sci, Grad Sch, Wuhan 430072, Hubei, Peoples R China
3.Shanghai Univ, E Inst, Aquaculture Div, Shanghai, Peoples R China

Recommended Citation:
Zheng, Keke; Zhu, Xiaoming; Han, Dong; Yang, Yunxia; Lei, Wu; Xie, Shouqi.Effects of dietary lipid levels on growth, survival and lipid metabolism during early ontogeny of Pelteobagrus vachelli larvae,AQUACULTURE,2010,299(1-4):121-127
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