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dc.contributor.authorRuyter, Bente
dc.contributor.authorSissener, Nini
dc.contributor.authorØstbye, Tone-Kari K
dc.contributor.authorSimon, Cedric
dc.contributor.authorKrasnov, Aleksei
dc.contributor.authorBou, Marta
dc.contributor.authorSanden, Monica
dc.contributor.authorNichols, Peter D.
dc.contributor.authorLutfi Royo, Esmail
dc.contributor.authorBerge, Gerd Marit
dc.date.accessioned2020-01-24T11:40:34Z
dc.date.available2020-01-24T11:40:34Z
dc.date.created2019-10-02T12:42:13Z
dc.date.issued2019
dc.identifier.citationBritish Journal of Nutrition. 2019, 1-43.nb_NO
dc.identifier.issn0007-1145
dc.identifier.urihttp://hdl.handle.net/11250/2637822
dc.description.abstractLimited availability of fish oils (FO), rich in n-3 long-chain (≥C20) PUFA, is a major constraint for further growth of the aquaculture industry. Long-chain n-3 rich oils from crops GM with algal genes are promising new sources for the industry. This project studied the use of a newly developed n-3 canola oil (DHA-CA) in diets of Atlantic salmon fingerlings in freshwater. The DHA-CA oil has high proportions of the n-3 fatty acids (FA) 18 : 3n-3 and DHA and lower proportions of n-6 FA than conventional plant oils. Levels of phytosterols, vitamin E and minerals in the DHA-CA were within the natural variation of commercial canola oils. Pesticides, mycotoxins, polyaromatic hydrocarbons and heavy metals were below lowest qualifiable concentration. Two feeding trials were conducted to evaluate effects of two dietary levels of DHA-CA compared with two dietary levels of FO at two water temperatures. Fish increased their weight approximately 20-fold at 16°C and 12-fold at 12°C during the experimental periods, with equal growth in salmon fed the FO diets compared with DHA-CA diets. Salmon fed DHA-CA diets had approximately the same EPA+DHA content in whole body as salmon fed FO diets. Gene expression, lipid composition and oxidative stress-related enzyme activities showed only minor differences between the dietary groups, and the effects were mostly a result of dietary oil level, rather than the oil source. The results demonstrated that DHA-CA is a safe and effective replacement for FO in diets of Atlantic salmon during the sensitive fingerling life-stage.nb_NO
dc.language.isoengnb_NO
dc.titleOmega-3 canola oil effectively replaces fish oil as a new safe dietary source of docosahexaenoic acid (DHA) in feed for juvenile Atlantic salmonnb_NO
dc.typeJournal articlenb_NO
dc.typePeer reviewednb_NO
dc.description.versionacceptedVersionnb_NO
dc.source.pagenumber1-43nb_NO
dc.source.journalBritish Journal of Nutritionnb_NO
dc.identifier.doi10.1017/S0007114519002356
dc.identifier.cristin1732999
cristin.unitcode7431,31,0,0
cristin.unitcode7431,33,0,0
cristin.unitnameBehov og velferd
cristin.unitnameFremmed- og smittestoff
cristin.ispublishedtrue
cristin.fulltextpostprint
cristin.qualitycode1


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