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Effects of dietary lipid levels on growth, survival and lipid metabolism during early ontogeny of Pelteobagrus vachelli larvae
Zheng, Keke; Zhu, Xiaoming; Han, Dong; Yang, Yunxia; Lei, Wu; Xie, Shouqi; Xie, SQ, Chinese Acad Sci, State Key Lab Freshwater Ecol & Biotechnol, Inst Hydrobiol, Wuhan 430072, Hubei, Peoples R China
2010
Source PublicationAQUACULTURE
ISSN0044-8486
Volume299Issue:40182Pages:121-127
AbstractA 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.
KeywordDietary Lipid Lipases Pelteobagrus Vachelli Larvae
Department[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
Subject AreaFisheries ; Marine & Freshwater Biology
Funding OrganizationNational Key Basic Research Program (NKBRP) [2009CB118702]; Ministry of Science and Technology of China [2007BAD37B] ; National Key Basic Research Program (NKBRP) [2009CB118702]; Ministry of Science and Technology of China [2007BAD37B] ; National Key Basic Research Program (NKBRP) [2009CB118702]; Ministry of Science and Technology of China [2007BAD37B] ; National Key Basic Research Program (NKBRP) [2009CB118702]; Ministry of Science and Technology of China [2007BAD37B]
Indexed BySCI
Language英语
WOS IDWOS:000275033500017
Funding OrganizationNational Key Basic Research Program (NKBRP) [2009CB118702]; Ministry of Science and Technology of China [2007BAD37B] ; National Key Basic Research Program (NKBRP) [2009CB118702]; Ministry of Science and Technology of China [2007BAD37B] ; National Key Basic Research Program (NKBRP) [2009CB118702]; Ministry of Science and Technology of China [2007BAD37B] ; National Key Basic Research Program (NKBRP) [2009CB118702]; Ministry of Science and Technology of China [2007BAD37B]
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Document Type期刊论文
Identifierhttp://ir.ihb.ac.cn/handle/342005/13552
Collection淡水生态学研究中心_期刊论文
Corresponding AuthorXie, SQ, Chinese Acad Sci, State Key Lab Freshwater Ecol & Biotechnol, Inst Hydrobiol, Wuhan 430072, Hubei, Peoples R China
Recommended Citation
GB/T 7714
Zheng, Keke,Zhu, Xiaoming,Han, Dong,et al. Effects of dietary lipid levels on growth, survival and lipid metabolism during early ontogeny of Pelteobagrus vachelli larvae[J]. AQUACULTURE,2010,299(40182):121-127.
APA Zheng, Keke.,Zhu, Xiaoming.,Han, Dong.,Yang, Yunxia.,Lei, Wu.,...&Xie, SQ, Chinese Acad Sci, State Key Lab Freshwater Ecol & Biotechnol, Inst Hydrobiol, Wuhan 430072, Hubei, Peoples R China.(2010).Effects of dietary lipid levels on growth, survival and lipid metabolism during early ontogeny of Pelteobagrus vachelli larvae.AQUACULTURE,299(40182),121-127.
MLA Zheng, Keke,et al."Effects of dietary lipid levels on growth, survival and lipid metabolism during early ontogeny of Pelteobagrus vachelli larvae".AQUACULTURE 299.40182(2010):121-127.
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