An Outbreak of Aeromonas salmonicida in Juvenile Siberian Sturgeons (Acipenser baerii)

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dc.contributor.authorVázquez Fernández, Esther
dc.contributor.authorChinchilla Rodríguez, Blanca
dc.contributor.authorRebollada Merino, Agustín Miguel
dc.contributor.authorDomínguez Rodríguez, Lucas José
dc.contributor.authorRodríguez Bertos, Antonio Manuel
dc.date.accessioned2024-08-19T11:32:40Z
dc.date.available2024-08-19T11:32:40Z
dc.date.issued2023-08-23
dc.descriptionAuthor Contributions: Conceptualization, A.R.-B. and B.C.; methodology, A.R.-B.; software, E.V.-F.; validation, B.C., A.R.-M., L.D. and A.R.-B.; formal analysis, E.V.-F., B.C. and A.R.-M.; investigation, E.V.-F. and B.C.; resources, L.D. and A.R.-B.; data curation, E.V.-F., B.C. and A.R.-M.; writing—original draft preparation, E.V.-F. and B.C.; writing—review and editing A.R.-M., L.D. and A.R.-B.; supervision, L.D. and A.R.-B. All authors have read and agreed to the published version of the manuscript.
dc.description.abstractAeromonas salmonicida is one of the major threats to world aquaculture, causing fish furunculosis and high mortality rates in cultured fish, particularly salmonids. Although Aeromonas spp. is a thoroughly studied pathogen, little is known regarding aeromoniasis in sturgeons. After a mortality outbreak, four juvenile sturgeons (Acipenser baerii) were submitted for autopsy and tissue samples were collected for histopathological and microbiological studies. The external examination revealed size heterogenicity, skin hyperpigmentation and reduced body condition of sturgeons. Within the abdominal cavity, mild hepatomegaly and splenomegaly were observed, as well as generalized organic congestion. Histology revealed severe multifocal haemorrhagic and ulcerative dermatitis, mainly localized in the dorsal and latero-ventral areas of fish. The histological study also showed moderate to severe inflammation of gills and organic lesions compatible with septicaemia. Bacterial isolates were identified as Aeromonas salmonicida subsp. salmonicida using MALDI-TOF MS and PCR. Overall, the lesions first described here are consistent with those previously reported in other cultured fish species and contribute to a better understanding of the pathogenesis of Aeromonas salmonicida subsp. salmonicida in the Siberian sturgeon, aside from providing new diagnostic tools for bacterial diseases impacting the fast-growing industry of caviar.
dc.description.departmentDepto. de Sanidad Animal
dc.description.facultyCentro de Vigilancia Sanitaria Veterinaria (VISAVET)
dc.description.refereedTRUE
dc.description.sponsorshipEuropean Union
dc.description.sponsorshipMinisterio de Ciencia, Innovación y Universidades
dc.description.statuspub
dc.identifier.citationVázquez-Fernández, E., Chinchilla, B., Rebollada-Merino, A., Domínguez, L., & Rodríguez-Bertos, A. (2023). An Outbreak of Aeromonas salmonicida in Juvenile Siberian Sturgeons (Acipenser baerii). Animals : an open access journal from MDPI, 13(17), 2697. https://doi.org/10.3390/ani13172697
dc.identifier.doi10.3390/ani13172697
dc.identifier.issn2076-2615
dc.identifier.officialurlhttps://doi.org/10.3390/ani13172697
dc.identifier.pmid37684961
dc.identifier.relatedurlhttps://www.mdpi.com/2076-2615/13/17/2697
dc.identifier.urihttps://hdl.handle.net/20.500.14352/107495
dc.issue.number17
dc.journal.titleAnimals
dc.language.isoeng
dc.publisherMDPI
dc.relation.projectIDP
dc.relation.projectIDHorizonte 2020-847635
dc.relation.projectIDPRE2019-087439
dc.rightsAttribution 4.0 Internationalen
dc.rights.accessRightsopen access
dc.rights.urihttp://creativecommons.org/licenses/by/4.0/
dc.subject.cdu636.09
dc.subject.keywordSiberian sturgeon
dc.subject.keywordAeromonas salmonicida
dc.subject.keywordmacroscopic lesions
dc.subject.keywordhistopathology
dc.subject.keywordaquaculture
dc.subject.keywordMALDI-TOF
dc.subject.ucmVeterinaria
dc.subject.unesco3109 Ciencias Veterinarias
dc.titleAn Outbreak of Aeromonas salmonicida in Juvenile Siberian Sturgeons (Acipenser baerii)
dc.typejournal article
dc.type.hasVersionAM
dc.volume.number13
dspace.entity.typePublication
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