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dc.contributor.authorHenrotte, Emilieen_UK
dc.contributor.authorKpogue, Dianeen_UK
dc.contributor.authorMandiki, Syaghalirwa N Men_UK
dc.contributor.authorWang, Neilen_UK
dc.contributor.authorDouxfils, Jessicaen_UK
dc.contributor.authorDick, James Ren_UK
dc.contributor.authorTocher, Douglas Ren_UK
dc.contributor.authorKestemont, Patricken_UK
dc.description.abstractThe 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. By opposition, the bioconversion of 18:2 n-6 into LC-PUFA was limited, regarding the elongation/desaturation activity of LC-PUFA from [1-14C]18:2 n-6. In view of the great ability for bioconversion of n-3 FA, linseed oil is a promising alternative to fish oil in formulating feed for juveniles perch as there were no differences in terms of specific growth rate between the treatments, but adults undergoing maturation should have at least partially LC-PUFA in their diet, particularly arachidonic acid (ARA) which is important during maturation, as breeders are not able to bioconvert 18:2 n-6 into ARA.en_UK
dc.relationHenrotte E, Kpogue D, Mandiki SNM, Wang N, Douxfils J, Dick JR, Tocher DR & Kestemont P (2011) n-3 and n-6 fatty acid bioconversion abilities in Eurasian perch (Perca fluviatilis) at two developmental stages. Aquaculture Nutrition, 17 (2), pp. e216-e225.
dc.rightsThe publisher does not allow this work to be made publicly available in this Repository. Please use the Request a Copy feature at the foot of the Repository record to request a copy directly from the author; you can only request a copy if you wish to use this work for your own research or private study.en_UK
dc.subjectLipid and fatty acid metabolismen_UK
dc.subjectLong-chain polyunsaturated fatty aciden_UK
dc.subjectLipids in nutritionen_UK
dc.subjectFishes nutritionen_UK
dc.subjectDietary supplementsen_UK
dc.subjectFishes feeding and feedsen_UK
dc.titlen-3 and n-6 fatty acid bioconversion abilities in Eurasian perch (Perca fluviatilis) at two developmental stagesen_UK
dc.typeJournal Articleen_UK
dc.rights.embargoreason[n-3 and n-6 fatty acid bioconversion abilities.pdf] The publisher does not allow this work to be made publicly available in this Repository therefore there is an embargo on the full text of the work.en_UK
dc.citation.jtitleAquaculture Nutritionen_UK
dc.type.statusVoR - Version of Recorden_UK
dc.contributor.affiliationUniversity of Namuren_UK
dc.contributor.affiliationUniversity of Namuren_UK
dc.contributor.affiliationUniversity of Namuren_UK
dc.contributor.affiliationUniversity of Namuren_UK
dc.contributor.affiliationUniversity of Namuren_UK
dc.contributor.affiliationInstitute of Aquacultureen_UK
dc.contributor.affiliationInstitute of Aquacultureen_UK
dc.contributor.affiliationUniversity of Namuren_UK
rioxxterms.typeJournal Article/Reviewen_UK
local.rioxx.authorHenrotte, Emilie|en_UK
local.rioxx.authorKpogue, Diane|en_UK
local.rioxx.authorMandiki, Syaghalirwa N M|en_UK
local.rioxx.authorWang, Neil|en_UK
local.rioxx.authorDouxfils, Jessica|en_UK
local.rioxx.authorDick, James R|en_UK
local.rioxx.authorTocher, Douglas R|0000-0002-8603-9410en_UK
local.rioxx.authorKestemont, Patrick|en_UK
local.rioxx.projectInternal Project|University of Stirling|
local.rioxx.filenamen-3 and n-6 fatty acid bioconversion abilities.pdfen_UK
Appears in Collections:Aquaculture Journal Articles

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