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Kidney Pathology from the Bacterium Hafnia alvei: Experimental Evidence
Author(s) -
Teshima Chisato,
Kudo Shigeharu,
Ohtani Yoshimi,
Saito Asako
Publication year - 1992
Publication title -
transactions of the american fisheries society
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.696
H-Index - 86
eISSN - 1548-8659
pISSN - 0002-8487
DOI - 10.1577/1548-8659(1992)121<0599:kpftbh>2.3.co;2
Subject(s) - biology , oncorhynchus , kidney , bacteria , fish <actinopterygii> , microbiology and biotechnology , pathology , incubation period , incubation , medicine , fishery , biochemistry , genetics , endocrinology
Abstract We found a kidney pathology due to natural infection with the bacterium Hafnia alvei in first‐year juveniles of cherry salmon Oncorhynchus masou cultured on local fish farms in Japan. Externally, the diseased fish showed a dark body surface and a swollen abdomen, and they swam slowly. Internally, lesions of various sizes, appearing as grayish‐white furuncle‐like eminences, were present in the ventral side of the kidney; histopathologically these were similar to those of bacterial kidney disease caused by the bacterium Renibacterium salmoninarum . The kidney pathology was reproducible experimentally with pure isolates of H. alvei from the renal lesions of naturally infected fish. The incubation period of the disease in young cherry salmon was about 3 months after a single intraperitoneal injection. The disease, however, may appear more quickly as the frequency of injection of the isolate increases.