in-vitro Antimicrobial Susceptibility of Pathogenic Bacteria in Rainbow Trout (Oncorhynchus mykiss, Walbaum)

摘要

MiC_(50) and MiC_(90) values of ciprofloxacin, trimethoprim-sulphamethoxazole, tetracycline and erythromycin for 39 fish pathogenic bacterial strains (Yersinia ruckeri, Enterococcus seriolidda, and Aeromonas salmonicida) were determined using the E-test and agar dilution method. The MiC_(50) value of ciprofloxacin was approximately 1 mg/l for all fish pathogenic isolates. All fish pathogenic isolates showed elevated susceptibility to ciprofloxacin.