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Virulence of the aetiological agent of goldfish ulcer disease in Atlantic salmon, Salmo salar L.
Author(s) -
CARSON J.,
HANDLINGER J.
Publication year - 1988
Publication title -
journal of fish diseases
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.819
H-Index - 85
eISSN - 1365-2761
pISSN - 0140-7775
DOI - 10.1111/j.1365-2761.1988.tb00746.x
Subject(s) - salmo , aeromonas salmonicida , biology , virulence , histopathology , fish farming , fish <actinopterygii> , aquaculture , fishery , microbiology and biotechnology , etiology , aquatic animal , zoology , veterinary medicine , pathology , gene , genetics , medicine
. An atypical strain of Aeromonas salmonicida was isolated from goldfish. Carassitis auraius L., with cutaneous ulcerativc lesions. Atlantic salmon, Salmo salar L., weighing 30–40 g were challenged parentcrally and by hath immersion with this strain. It was found to be highly virulent in both forms of challenge and was capable of achieving an LD 50 of three colony‐forming units in parenterally challenged fish. The gross lesions and histopathology of infected fish bore a close resemblance to classical furunculosis in salmonids. Goldfish ulcer disease is endemic to some regions of Australia and represents a potential threat to the emerging salmonid farming industry.