Please use this identifier to cite or link to this item: http://hdl.handle.net/10553/47907
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dc.contributor.authorGarcía-Celdrán, M.
dc.contributor.authorRamis, G.
dc.contributor.authorManchado, M.
dc.contributor.authorEstévez, A.
dc.contributor.authorAfonso, J. M.
dc.contributor.authorMaría-Dolores, E.
dc.contributor.authorPeñalver, J.
dc.contributor.authorArmero, E.
dc.date.accessioned2018-11-23T17:24:19Z-
dc.date.available2018-11-23T17:24:19Z-
dc.date.issued2015
dc.identifier.issn0044-8486
dc.identifier.urihttp://hdl.handle.net/10553/47907-
dc.description.abstractGrowth rates and the presence of deformities can be affected by the use of different rearing systems as well as by the different genetic origins of the stocks. At the same time, strategies that involve the development of selection schemes for these traits of economic interest are scarce. In this study the effect of the origin of the broodstock on growth traits and external deformities as well as genetic parameters (heritabilities and genetic correlations) for these traits were estimated at different ages (days post-hatching; dph). For this purpose, a population of farmed gilthead sea bream was obtained from three broodstock of different origins along the Spanish coasts [Cantabrian Sea (CAN), the Atlantic Ocean (ATL) and Mediterranean Sea (MED)] and reared under the same intensive conditions. Parental assignments between breeders and their offspring were carried out a posteriori using a microsatellite multiplex (SMsa1). Juveniles from MED showed the fastest growth while those from ATL showed the slowest growth and the highest incidence of vertebral column deformities. Differences among origins could be explained not only through their different genetic backgrounds but also by environmental conditions in the initial facilities, where different origins were reared separately, and by genotype x environment interactions. Growth traits showed low heritabilities at 163 dph (0.11 +/- 0.03) and medium at 690 dph (0.25 +/- 0.06 for weight; 0.22 +/- 0.07 for length) suggesting that selection at the later age would be more appropriate. Both traits were highly and positively correlated at both ages at the genetic and phenotypic levels. External deformities in the vertebral column as well as in the operculum showed medium-high heritability at both studied ages with higher values at 690 dph (0.56 [0.17-0.69] and 0.46 [0.20-0.90], respectively). These results revealed that the ontogenesis of deformities exhibits a partial genetic basis. Nevertheless, for those in the rest of the head the heritability was close to zero. Initially, positive genetic correlations between growth and deformities in the vertebral column were observed (83% probability of being positive for weight-vertebral column deformity; 81% for length-vertebral column deformity). However, these correlations seem to be negative at 690 dph (94.2% probability of being negative for weight-vertebral column; 80.6% for length-vertebral column). Results confirm that it could be recommended to eliminate deformed fish from a breeding nucleus and later, select on growth. All these findings should be relevant for the establishment of successful breeding programs in the aquaculture of this species. (C) 2015 Elsevier B.V. All rights reserved.
dc.publisher0044-8486
dc.relation.ispartofAquaculture
dc.sourceAquaculture[ISSN 0044-8486],v. 445, p. 33-41
dc.subject.otherBass Dicentrarchus-Labrax
dc.subject.otherTrout Oncorhynchus-Mykiss
dc.subject.otherCyprinus-Carpio L.
dc.subject.otherSalmon Salmo-Salar
dc.subject.otherCod Gadus-Morhua
dc.subject.otherBody-Weight
dc.subject.otherAtlantic Salmon
dc.subject.otherSexual-Maturity
dc.subject.otherCommon Carp
dc.subject.otherParentage Assignment
dc.titleEstimates of heritabilities and genetic correlations of growth and external skeletal deformities at different ages in a reared gilthead sea bream (Sparus aurata L.) population sourced from three broodstocks along the Spanish coasts
dc.typeinfo:eu-repo/semantics/Articlees
dc.typeArticlees
dc.identifier.doi10.1016/j.aquaculture.2015.04.006
dc.identifier.scopus84928252604
dc.identifier.isi000354489000004
dc.contributor.authorscopusid55224003000
dc.contributor.authorscopusid19235779700
dc.contributor.authorscopusid6603277540
dc.contributor.authorscopusid56269460100
dc.contributor.authorscopusid57201126472
dc.contributor.authorscopusid36135924200
dc.contributor.authorscopusid56602562200
dc.contributor.authorscopusid57214608039
dc.contributor.authorscopusid6602850384
dc.description.lastpage41
dc.description.firstpage33
dc.relation.volume445
dc.type2Artículoes
dc.contributor.daisngid4090047
dc.contributor.daisngid280030
dc.contributor.daisngid285240
dc.contributor.daisngid291346
dc.contributor.daisngid1136306
dc.contributor.daisngid6742721
dc.contributor.daisngid2407518
dc.contributor.daisngid2963559
dc.contributor.wosstandardWOS:Garcia-Celdran, M
dc.contributor.wosstandardWOS:Ramis, G
dc.contributor.wosstandardWOS:Manchado, M
dc.contributor.wosstandardWOS:Estevez, A
dc.contributor.wosstandardWOS:Afonso, JM
dc.contributor.wosstandardWOS:Maria-Dolores, E
dc.contributor.wosstandardWOS:Penalver, J
dc.contributor.wosstandardWOS:Armero, E
dc.date.coverdateAgosto 2015
dc.identifier.ulpgces
dc.description.sjr1,103
dc.description.jcr1,893
dc.description.sjrqQ1
dc.description.jcrqQ2
dc.description.scieSCIE
item.grantfulltextnone-
item.fulltextSin texto completo-
crisitem.author.deptGrupo de Investigación en Acuicultura-
crisitem.author.deptIU de Investigación en Acuicultura Sostenible y Ec-
crisitem.author.deptPatología Animal, Producción Animal, Bromatología y Tecnología de Los Alimentos-
crisitem.author.parentorgIU de Investigación en Acuicultura Sostenible y Ec-
crisitem.author.fullNameAfonso López, Juan Manuel-
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