n-3 and n-6 fatty acid bioconversion abilities in Eurasian perch (Perca fluviatilis) at two developmental stages
2010; Wiley; Volume: 17; Issue: 2 Linguagem: Inglês
10.1111/j.1365-2095.2010.00754.x
ISSN1365-2095
AutoresEmilie Henrotte, D Kpogue, Syaghalirwa N.M. Mandiki, Wang Na, Jonathan Douxfils, James Dick, Douglas R. Tocher, Patrick Kestemont,
Tópico(s)Reproductive biology and impacts on aquatic species
ResumoAquaculture NutritionVolume 17, Issue 2 p. e216-e225 n-3 and n-6 fatty acid bioconversion abilities in Eurasian perch (Perca fluviatilis) at two developmental stages E. HENROTTE, E. HENROTTE Unit of Research in Organismal Biology, University of Namur, Namur, BelgiumSearch for more papers by this authorD. KPOGUE, D. KPOGUE Unit of Research in Organismal Biology, University of Namur, Namur, BelgiumSearch for more papers by this authorS.N.M. MANDIKI, S.N.M. MANDIKI Unit of Research in Organismal Biology, University of Namur, Namur, BelgiumSearch for more papers by this authorN. WANG, N. WANG Unit of Research in Organismal Biology, University of Namur, Namur, BelgiumSearch for more papers by this authorJ. DOUXFILS, J. DOUXFILS Unit of Research in Organismal Biology, University of Namur, Namur, BelgiumSearch for more papers by this authorJ. DICK, J. DICK Institute of Aquaculture, University of Stirling, Stirling, UKSearch for more papers by this authorD. TOCHER, D. TOCHER Institute of Aquaculture, University of Stirling, Stirling, UKSearch for more papers by this authorP. KESTEMONT, P. KESTEMONT Unit of Research in Organismal Biology, University of Namur, Namur, BelgiumSearch for more papers by this author E. HENROTTE, E. HENROTTE Unit of Research in Organismal Biology, University of Namur, Namur, BelgiumSearch for more papers by this authorD. KPOGUE, D. KPOGUE Unit of Research in Organismal Biology, University of Namur, Namur, BelgiumSearch for more papers by this authorS.N.M. MANDIKI, S.N.M. MANDIKI Unit of Research in Organismal Biology, University of Namur, Namur, BelgiumSearch for more papers by this authorN. WANG, N. WANG Unit of Research in Organismal Biology, University of Namur, Namur, BelgiumSearch for more papers by this authorJ. DOUXFILS, J. DOUXFILS Unit of Research in Organismal Biology, University of Namur, Namur, BelgiumSearch for more papers by this authorJ. DICK, J. DICK Institute of Aquaculture, University of Stirling, Stirling, UKSearch for more papers by this authorD. TOCHER, D. TOCHER Institute of Aquaculture, University of Stirling, Stirling, UKSearch for more papers by this authorP. KESTEMONT, P. KESTEMONT Unit of Research in Organismal Biology, University of Namur, Namur, BelgiumSearch for more papers by this author First published: 10 March 2011 https://doi.org/10.1111/j.1365-2095.2010.00754.xCitations: 22 Correspondence: Kestemont Patrick, Unit of Research in Organismal Biology, University of Namur, 61 rue de Bruxelles, B-5000 Namur, Belgium. E-mail: [email protected] Read the full textAboutPDF ToolsRequest permissionExport citationAdd to favoritesTrack citation ShareShare Give accessShare full text accessShare full-text accessPlease review our Terms and Conditions of Use and check box below to share full-text version of article.I have read and accept the Wiley Online Library Terms and Conditions of UseShareable LinkUse the link below to share a full-text version of this article with your friends and colleagues. Learn more.Copy URL Abstract The aim of this work was to study the fatty acid (FA) bioconversion ability in Eurasian perch fed with diets differing in their polyunsaturated fatty acids (PUFA) from n-3 and n-6 series content at two development stages: adults in exogenous vitellogenesis, and juveniles during the on-growing phase. Duplicate groups of adults and juveniles were fed for 12 weeks with four diets: D1 and D2, two diets prepared with fish oil partially or totally as the lipid source, and so containing long-chain PUFA (LC-PUFA). Those two diets differed by their n-3/n-6 FA dietary ratio (0.2 and 7.0, respectively), D1 being characterized by a high n-6 LC-PUFA level, while D2 had a high level of n-3 LC-PUFA. D3 and D4 were constituted only with vegetable oils, and were therefore devoid of LC-PUFA. D3 was characterized by a high level of 18:2 n-6 (n-6/n-3 ratio of 0.3), while D4 was characterized by a high level of 18:3 n-3 (n-3/n-6 ratio of 1.9). Both groups of fish were able to elongate and desaturate the 18:3 n-3 precursor into eicosapentaenoic acid and docosahexaenoic acid, regarding the FA profile of livers. Furthermore, total elongation/desaturation from [1-14C]18:3 n-3 of LC-PUFA was higher in fish fed with the high dietary 18:3 n-3 level compared to the diet rich in n-3 LC-PUFA. 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