THE PATHOGEN of BACTERIAL GILL DISEASE IN MANDARIN FISH SINIPERCA CHUATISI
翘嘴鳜烂鳃病病原的研究

The six strains of bacteria were isolated from the rotted gill of diseased mandarin fish. Among the sixstrains, we found out two strains of high virulence: SC--3 and SC--6 strains. According to the biological features,Physiological--biochemical analysis and pathogenicity detection of the SC--3 and SC--6, the two strains wereidentified to be Flexibacter columnaris, the pathogen of the rotted gill disease of mandarin fish (Sinipercachuatisi). By sensitivity testing to drugs, SC--3 was sensitive to many antibiotics, and furane but not tosulfathiazole.