Characterization of the Causative Organism of Ornamental Fish Mycobactriosis in Malaysia
نویسندگان
چکیده
The occurrence of fish mycobacteriosis in two goldfish, Carassius auratus and a red eyed tetra, Moenkhausia sanctaefilomenae was reported in Malaysia (ANDERSON et al., 1987).The disease was diagnosed based on typical morphology of fish tubercles, the presence of acid-fast bacteria in smears and granulomas, and the isolation of Mycobacterium sp.. Histopathological examina tion of the diseased fish revealed the classical focal granulomas of the soft tubercle-type with a zone of highly eosinophilic degenerating epitheloid cells, a calcified caseous as well as a low prevalence of acid-fast bacteria in the granulomas. The two species of these acid-fast bacteria commonly reported as causative agents in fish are M. fortuitum and M. marium (GIAVENNI, 1980). Other species reported to be associated with mycobacteriosis include M. anabanti (SANTACANA et al., 1982), M. salmoniphilum (Ross, 1970) and a new subspecies M. chelonei (ARAKAWA and •@ FRYER, 1984). Scince the first report of myco
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