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

Investigación publicada en Animals

23 de agosto de 2023

Aeromonas 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




Vazquez-Fernandez E., Chinchilla-Rodríguez B., Rebollada A., Dominguez L. y Rodriguez-Bertos A..




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

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



Participantes:

Universidad ComplutenseServicio de Patología y Veterinaria Forense (SAP). Centro de Vigilancia Sanitaria Veterinaria (VISAVET). Universidad Complutense (UCM).

Universidad ComplutenseDepartamento de Medicina y Cirugía Animal. Departamento de Sanidad Animal. Facultad de Veterinaria. Universidad Complutense (UCM).







Animals
FACTOR YEAR Q
2.700 2023

NLMID: 101635614

PMID: 37684961

ISSN: 2076-2615



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


REVISTA: Animals


NUMERACIÓN: 13(17):2697


AÑO: 2023


EDITORIAL: MDPI


AUTORES: Vazquez-Fernandez E., Chinchilla-Rodríguez B., Rebollada A., Dominguez L. and Rodriguez-Bertos A..


2nd
Blanca Chinchilla Rodríguez
4th
Lucas Domínguez Rodríguez
Last
Antonio Manuel Rodríguez Bertos

DOI: https://doi.org/10.3390/ani13172697


CITA ESTA PUBLICACIÓN:

Vazquez-Fernandez E., Chinchilla-Rodríguez B., Rebollada A., Dominguez L. y Rodriguez-Bertos A. An Outbreak of Aeromonas salmonicida in Juvenile Siberian Sturgeons (Acipenser baerii). Animals. 13(17):2697. 2023. (A). ISSN: 2076-2615. DOI: 10.3390/ani13172697


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