Please use this identifier to cite or link to this item: http://hdl.handle.net/1893/7447
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dc.contributor.authorKarapanagiotidis, Ioannis T-
dc.contributor.authorBell, Michael-
dc.contributor.authorLittle, David Colin-
dc.contributor.authorYakupitiyage, Amararatne-
dc.date.accessioned2013-06-10T23:18:36Z-
dc.date.issued2007-06-
dc.identifier.urihttp://hdl.handle.net/1893/7447-
dc.description.abstractA 20-week feeding trial was conducted to determine whether increasing linolenic acid (18:3n-3) in vegetable oil (VO) based diets would lead to increased tissue deposition of 22:6n-3 in Nile tilapia ( Oreochromis niloticus). Five isonitrogenous and isoenergetic diets were supplemented with 3% of either linseed oil (LO), a mixture of linseed oil with refined palm olein oil (PO) (LO-PO 2:1) and a mixture of refined palm olein oil with linseed oil (PO-LO 3:2) or with fish oil (FO) or corn oil (CO) as controls. The PO-LO, LO-PO and LO diets supplied a similar amount of 18:2n-6 (0.5% of diet by dry weight) and 0.5, 0.7 and 1.1% of 18:3n-3, respectively. Increased dietary 18:3n-3 caused commensurate increases in longer-chain n-3 PUFA and decreases in longer-chain n-6 PUFA in the muscle lipids of tilapia. However, the biosynthetic activities of fish fed the LO-based diets were not sufficient to raise the tissue concentrations of 20:5n-3, 22:5n-3 and 22:6n-3 to those of fish fed FO. The study suggests that tilapia (O. niloticus) has a limited capacity to synthesise 20:5n-3 and 22:6n-3 from dietary 18:3n-3. The replacement of FO in the diet of farmed tilapia with vegetable oils could therefore lower tissue concentrations of 20:5n-3 and 22:6n-3, and consequently produce an aquaculture product of lower lipid nutritional value for the consumer.en_UK
dc.language.isoen-
dc.publisherSpringer-
dc.relationKarapanagiotidis IT, Bell M, Little DC & Yakupitiyage A (2007) Replacement of dietary fish oils by alpha-linolenic acid-rich oils lowers omega 3 content in tilapia flesh, Lipids, 42 (6), pp. 547-559.-
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.-
dc.subject3en_UK
dc.subjectactivitiesen_UK
dc.subjectalpha-linolenic aciden_UK
dc.subjectAQUACULTUREen_UK
dc.subjectCAPACITYen_UK
dc.subjectControlen_UK
dc.subjectDESATURATIONen_UK
dc.subjectdieten_UK
dc.subjectDIETARYen_UK
dc.subjectDietsen_UK
dc.subjectEICOSAPENTAENOIC ACIDen_UK
dc.subjectELONGATIONen_UK
dc.subjectfeedingen_UK
dc.subjectfishen_UK
dc.subjectfish oilen_UK
dc.subjectFISH-OILen_UK
dc.subjectHYBRID TILAPIAen_UK
dc.subjectLINSEEDen_UK
dc.subjectlinseed oilen_UK
dc.subjectlipiden_UK
dc.subjectLIPIDSen_UK
dc.subjectMARINE LIPIDSen_UK
dc.subjectMETABOLISMen_UK
dc.subjectmolecularen_UK
dc.subjectMUSCLEen_UK
dc.subjectN-3en_UK
dc.subjectNile tilapiaen_UK
dc.subjectnutritionen_UK
dc.subjectOILen_UK
dc.subjectOreochromis niloticusen_UK
dc.subjectpolyunsaturated fatty acidsen_UK
dc.subjectPOLYUNSATURATED FATTY-ACIDSen_UK
dc.subjectPRODUCTen_UK
dc.subjectPUFAen_UK
dc.subjectREPLACEMENTen_UK
dc.subjectTILAPIAen_UK
dc.subjectTISSUEen_UK
dc.subjectTRIALen_UK
dc.subjectTROUT ONCORHYNCHUS-MYKISSen_UK
dc.subjectVALUEen_UK
dc.subjectvegetable oilen_UK
dc.subjectvegetable oilsen_UK
dc.subjectVEGETABLE-OILen_UK
dc.subjectVEGETABLE-OILSen_UK
dc.subjectWEIGHTen_UK
dc.subject.lcshFishes Food-
dc.subject.lcshVegetable oils-
dc.subject.lcshFish oils-
dc.titleReplacement of dietary fish oils by alpha-linolenic acid-rich oils lowers omega 3 content in tilapia fleshen_UK
dc.typeJournal Articleen_UK
dc.rights.embargodate2999-12-31T00:00:00Z-
dc.rights.embargoreasonThe 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.-
dc.identifier.doihttp://dx.doi.org/10.1007/s11745-007-3057-1-
dc.citation.jtitleLipids-
dc.citation.issn0024-4201-
dc.citation.volume42-
dc.citation.issue6-
dc.citation.spage547-
dc.citation.epage559-
dc.citation.publicationstatusPublished-
dc.citation.peerreviewedRefereed-
dc.type.statusPublisher version (final published refereed version)-
dc.author.emaild.c.little@stir.ac.uk-
dc.citation.date01/05/2007-
dc.contributor.affiliationUniversity of Stirling-
dc.contributor.affiliationAquaculture-
dc.contributor.affiliationAquaculture-
dc.contributor.affiliationAsian Institute of Technology-
dc.rights.embargoterms2999-12-31-
dc.rights.embargoliftdate2999-12-31-
dc.identifier.isi000247931200007-
Appears in Collections:Aquaculture Journal Articles

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