Please use this identifier to cite or link to this item: http://hdl.handle.net/1893/2898
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dc.contributor.authorSalze, Guillaumeen_UK
dc.contributor.authorTocher, Douglas Ren_UK
dc.contributor.authorRoy, Williamen_UK
dc.contributor.authorRobertson, Dereken_UK
dc.date.accessioned2013-06-09T09:49:57Z-
dc.date.available2013-06-09T09:49:57Z-
dc.date.issued2005-11en_UK
dc.identifier.urihttp://hdl.handle.net/1893/2898-
dc.description.abstractLipids and essential fatty acids, particularly the highly unsaturated fatty acids, 20:5n-3 (eicosapentaenoic acid; EPA), 22:6n-3 (docosahexaenoic acid; DHA) and 20:4n-6 (arachidonic acid, AA) have been shown to be crucial determinants of marine fish reproduction directly affecting fecundity, egg quality, hatching success, larval malformation and pigmentation. In Atlantic cod (Gadus morhua L.) culture, eggs from farmed broodstock can have much lower fertilisation and hatching rates than eggs from wild broodstock. The present study aimed to test the hypothesis that potential quality and performance differences between eggs from different cod broodstock would be reflected in differences in lipid and fatty acid composition. Thus eggs were obtained from three broodstock, farmed, wild/fed and wild/unfed, and lipid content, lipid class composition, fatty acid composition and pigment content were determined and related to performance parameters including fertilisation rate, symmetry of cell division and survival to hatching. Eggs from farmed broodstock showed significantly lower fertilisation rates, cell symmetry and survival to hatching rates than eggs from wild broodstock. There were no differences in total lipid content or the proportions of the major lipid classes between eggs from the different broodstock. However, eggs from farmed broodstock were characterised by having significantly lower levels of some quantitatively minor phospholipid classes, particularly phosphatidylinositol. There were no differences between eggs from farmed and wild broodstock in the proportions of saturated, monounsaturated and total polyunsaturated fatty acids. The DHA content was also similar. However, eggs from farmed broodstock had significantly lower levels of AA, and consequently significantly higher EPA/AA ratios than eggs from wild broodstock. Total pigment and astaxanthin levels were significantly higher in eggs from wild broodstock. Therefore, the levels of AA and phosphatidylinositol, the predominant AA-containing lipid class, and egg pigment content were positively related to egg quality or performance parameters such as fertilisation and hatching success rates, and cell symmetry.en_UK
dc.language.isoenen_UK
dc.publisherWiley-Blackwellen_UK
dc.relationSalze G, Tocher DR, Roy W & Robertson D (2005) Egg quality determinants in cod (Gadus morhua L.): egg performance and lipids in eggs from farmed and wild broodstock. Aquaculture Research, 36 (15), pp. 1488-1499. https://doi.org/10.1111/j.1365-2109.2005.01367.xen_UK
dc.rightsRights according to Exclusive License Form: http://www.blackwellpublishing.com/pdf/ARE_ELF.pdf.; Published in Aquaculture Research. Copyright: © 2005 Blackwell Publishing Ltd. Salze, G., Tocher, D. R., Roy, W. J. and Robertson, D. A. (2005), Egg quality determinants in cod (Gadus morhua L.): egg performance and lipids in eggs from farmed and wild broodstock. Aquaculture Research, 36: 1488–1499. doi: 10.1111/j.1365-2109.2005.01367.x; The definitive version is available at www.blackwell-synergy.com. http://onlinelibrary.wiley.com/doi/10.1111/j.1365-2109.2005.01367.x/abstract#en_UK
dc.subjectAtlantic coden_UK
dc.subjectGadus morhuaen_UK
dc.subjectEggen_UK
dc.subjectQualityen_UK
dc.subjectPolyunsaturated fatty acidsen_UK
dc.subjectastaxanthinen_UK
dc.subjectarachidonic aciden_UK
dc.subjectPhosphatidylinositolen_UK
dc.subjectWilden_UK
dc.subjectFarmeden_UK
dc.subjectAtlantic coden_UK
dc.subjectFishes Eggsen_UK
dc.subjectFish hatcheriesen_UK
dc.titleEgg quality determinants in cod (Gadus morhua L.): egg performance and lipids in eggs from farmed and wild broodstocken_UK
dc.typeJournal Articleen_UK
dc.identifier.doi10.1111/j.1365-2109.2005.01367.xen_UK
dc.citation.jtitleAquaculture Researchen_UK
dc.citation.issn1365-2109en_UK
dc.citation.issn1355-557Xen_UK
dc.citation.volume36en_UK
dc.citation.issue15en_UK
dc.citation.spage1488en_UK
dc.citation.epage1499en_UK
dc.citation.publicationstatusPublisheden_UK
dc.citation.peerreviewedRefereeden_UK
dc.type.statusAM - Accepted Manuscripten_UK
dc.author.emaildrt1@stir.ac.uken_UK
dc.contributor.affiliationUniversity of Stirlingen_UK
dc.contributor.affiliationInstitute of Aquacultureen_UK
dc.contributor.affiliationMachrihanishen_UK
dc.contributor.affiliationMachrihanish - LEGACYen_UK
dc.identifier.isiWOS:000233018100004en_UK
dc.identifier.scopusid2-s2.0-28144462915en_UK
dc.identifier.wtid836464en_UK
dc.contributor.orcid0000-0002-8603-9410en_UK
dc.contributor.orcid0000-0002-6277-2677en_UK
dcterms.dateAccepted2005-11-30en_UK
dc.date.filedepositdate2011-04-13en_UK
rioxxterms.typeJournal Article/Reviewen_UK
rioxxterms.versionAMen_UK
local.rioxx.authorSalze, Guillaume|en_UK
local.rioxx.authorTocher, Douglas R|0000-0002-8603-9410en_UK
local.rioxx.authorRoy, William|0000-0002-6277-2677en_UK
local.rioxx.authorRobertson, Derek|en_UK
local.rioxx.projectInternal Project|University of Stirling|https://isni.org/isni/0000000122484331en_UK
local.rioxx.freetoreaddate2011-04-13en_UK
local.rioxx.licencehttp://www.rioxx.net/licenses/all-rights-reserved|2011-04-13|en_UK
local.rioxx.filenameSalzeetal(revised).pdfen_UK
local.rioxx.filecount1en_UK
local.rioxx.source1355-557Xen_UK
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