Chorion alterations in eyed-stage salmonid eggs farmed in la araucanía, chile: A retrospective study

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datacite.alternateIdentifier.citationAnimals, 11 (8), 2021
datacite.alternateIdentifier.doi10.3390/ani11082427
datacite.alternateIdentifier.issn2076-2615
datacite.creatorValdebenito, Iván
datacite.creatorVillalobos, Elías Figueroa
datacite.creatorValdebenito, Matías
datacite.creatorPaiva, Luis
datacite.date2021
datacite.rightsAcceso abierto
datacite.subjectBroodstock
datacite.subjectEgg Disease
datacite.subjectEgg Quality
datacite.subjectFish Embryo
datacite.subjectZona Pellucida
datacite.subjectChorionic Gonadotropin
datacite.subjectSmz-2t
datacite.subjectChorionic Gonadotropin
datacite.subjectAnimal Welfare
datacite.subjectAquaculture
datacite.subjectArticle
datacite.subjectChorion
datacite.subjectEmbryo Development
datacite.subjectFertilization
datacite.subjectMarine Environment
datacite.subjectMorphology
datacite.subjectMortality
datacite.subjectNonhuman
datacite.subjectReproductive Success
datacite.subjectSleep Waking Cycle
datacite.subjectZona Pellucida
datacite.titleChorion alterations in eyed-stage salmonid eggs farmed in la araucanía, chile: A retrospective study
dc.contributor.authorFIGUEROA VILLALOBOS, ELIAS GUSTAVO
dc.contributor.authorVALDEBENITO ISLER, NEMESIO IVAN
dc.date.accessioned2025-10-06T14:21:39Z
dc.date.available2025-10-06T14:21:39Z
dc.description.abstractThe chorion is the primary envelop that protects the fish embryo against mechanical actions, pathogens, and abrupt changes in physical and chemicals conditions of the incubation medium. During embryo development, chorion alterations are not rare, but the occurrence of these is scarcely reported. Increased frequency of chorion alterations can result in increased embryo mortality and thus decreased reproductive performance and losses for fish farms. In this study, we characterize different chorion alterations observed in samples collected over 14 years from 12 salmon and trout farms located in the region of La Araucanía in southern Chile, which sent live eyed-stage embryos ( eyed-eggs ) for quality analysis to our laboratory. We found soft chorion as the most common alteration observed, being present in the whole 14-year series analyzed in Atlantic Salmon (Salmo salar) and affecting up to 35.0% of the samples examined in a year. This alteration also affected up to 20.0 and 5.7% of Coho Salmon (Oncorhynchus kisutch) and Rainbow Trout (Oncorhynchus mykiss) samples analyzed in a year, respectively. We also found an increase of other chorion alterations, including perforated and white-spotted chorion in Atlantic and Coho Salmon, in the last 8 years. Among the three species, Rainbow Trout exhibited fewer chorion alterations. As the embryonated eggs analyzed here were obtained from broodstocks maintained under standard industrial conditions, these alterations might be linked to changes in environmental conditions affecting the incubation water that need to be further investigated. © 2021 Elsevier B.V., All rights reserved.
dc.description.ia_keywordchorion, alterations, salmon, embryo, conditions, samples, trout
dc.formatPDF
dc.identifier.urihttps://repositoriodigital.uct.cl/handle/10925/6727
dc.language.isoen
dc.publisherMultidisciplinary Digital Publishing Institute (MDPI)
dc.relationinstname: ANID
dc.relationreponame: Repositorio Digital RI2.0
dc.rights.driverinfo:eu-repo/semantics/openAccess
dc.sourceAnimals
dc.subject.ia_odsODS 3: Salud y bienestar
dc.subject.ia_oecd1nCiencias Naturales
dc.subject.ia_oecd2nCiencias Biológicas
dc.subject.ia_oecd3nEcología
dc.type.driverinfo:eu-repo/semantics/article
dc.type.driverhttp://purl.org/coar/resource_type/c_2df8fbb1
dc.type.openaireinfo:eu-repo/semantics/publishedVersion
dspace.entity.typePublication
oaire.citationEdition2021
oaire.citationIssue8
oaire.citationTitleAnimals
oaire.citationVolume11
oaire.fundingReferenceANID FONDECYT 1211246
oaire.fundingReferenceUniversidad Católica de Temuco VIPUCT 4136-2018
oaire.licenseConditionObra bajo licencia Creative Commons Atribución 4.0 Internacional
oaire.licenseCondition.urihttps://creativecommons.org/licenses/by/4.0/
oaire.resourceTypeArtículo
oaire.resourceType.enArticle
relation.isAuthorOfPublication9cc0cf1e-6725-4539-8f65-58f2c6a85700
relation.isAuthorOfPublicationa18558bc-bf10-4e11-9254-4d4be1564d44
relation.isAuthorOfPublication.latestForDiscovery9cc0cf1e-6725-4539-8f65-58f2c6a85700
uct.catalogadorjvu
uct.comunidadRecursos Naturalesen_US
uct.departamentoDepartamento de Ciencias Agropecuarias y Acuícolas
uct.facultadFacultad de Recursos Naturales
uct.indizacionScience Citation Index Expanded - SCIE
uct.indizacionScopus
uct.indizacionPubMed
uct.indizacionDOAJ
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