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dc.contributor.authorSvalheim, Ragnhild Aven
dc.contributor.authorKarlsson-Drangsholt, Anders
dc.contributor.authorOlsen, Stein Harris
dc.contributor.authorJohnsen, Helge K.
dc.contributor.authorAas-Hansen, Øyvind
dc.date.accessioned2018-05-18T09:24:15Z
dc.date.available2018-05-18T09:24:15Z
dc.date.issued2017-04-25
dc.description.abstractWild Atlantic cod of commercial size (1.9 ± 0.5 kg) were swum to exhaustion in a large swim tunnel in an attempt to mimic the initial stage of trawling, when fish swim at the trawl mouth until they fatigue or lose interest and subsequently drop into the trawl. The objective of the study was to investigate if exhaustive swimming in unstressed cod had any negative effects on fillet quality, and if post-exercise recuperation for 2, 4, 6, or 10 h could reverse such potential effects. Exhaustive swimming increased muscle stiffness during rigor mortis, but did not change time to maximum stiffness or cause any marked increase in fillet redness. Plasma lactate and cortisol were elevated after exercise, but recovered steadily during the recuperation period. Swimming to exhaustion also caused a drop in muscle pH, which returned to pre-exercise level within four hours of recuperation. We conclude that exhaustive swimming in unstressed Atlantic cod only has a moderate and reversible short lasting negative effect on flesh quality, which is less severe than the poor quality frequently observed in commercially caught cod.en_US
dc.description.sponsorshipNofima AS, 21161en_US
dc.descriptionAccepted manuscript version, licensed <a href=http://creativecommons.org/licenses/by-nc-nd/4.0/> CC BY-NC-ND 4.0. </a> Published version available in <a href=http://doi.org/10.1016/j.fishres.2017.04.008> Fisheries Research (2017), 193, 158-163. </a>en_US
dc.identifier.citationSvalheim, R. A., Karlsson-Drangsholt, A., Olsen, S. H., Johnsen, H. K. & Aas-Hansen Ø. (2017). Effects of exhaustive swimming and subsequent recuperation on flesh quality in unstressed Atlantic cod (Gadus morhua). Fisheries Research, 193, 158-163. http://doi.org/10.1016/j.fishres.2017.04.008en_US
dc.identifier.cristinIDFRIDAID 1489207
dc.identifier.doi10.1016/j.fishres.2017.04.008
dc.identifier.issn0165-7836
dc.identifier.issn1872-6763
dc.identifier.urihttps://hdl.handle.net/10037/12728
dc.language.isoengen_US
dc.publisherElsevieren_US
dc.relation.journalFisheries Research
dc.relation.projectIDinfo:eu-repo/grantAgreement/RCN/SFI/203477/Norway/Centre for Research-based Innovation in Sustainable Fish Capture and Processing Technology/CRISP/en_US
dc.rights.accessRightsopenAccessen_US
dc.subjectVDP::Landbruks- og Fiskerifag: 900::Fiskerifag: 920::Fangst: 925en_US
dc.subjectVDP::Agriculture and fishery disciplines: 900::Fisheries science: 920::Catch: 925en_US
dc.titleEffects of exhaustive swimming and subsequent recuperation on flesh quality in unstressed Atlantic cod (Gadus morhua)en_US
dc.typeJournal articleen_US
dc.typeTidsskriftartikkelen_US
dc.typePeer revieweden_US


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