单过硫酸氢钾对常见水产养殖生物致病菌的抑制与杀灭效果

目的观察单过硫酸氢钾对水产养殖生物致病菌的抑制和杀灭效果。方法采用肉汤稀释法测定了单过硫酸氢钾对鳗弧菌等6种致病菌的最小抑菌浓度和最小杀菌浓度。结果单过硫酸氢钾对鳗弧菌、铜绿假单胞菌MIC值为25.6 mg/L;对灿烂弧菌的MIC值为6.4 mg/L;对副溶血弧菌、嗜水气单胞菌嗜水亚种和鱼肠弧菌MIC值为51.2 mg/L。单过硫酸氢钾对鳗弧菌、铜绿假单胞菌、灿烂弧菌MBC值为25.6 mg/L;对副溶血弧菌、嗜水气单胞菌嗜水亚种和鱼肠弧菌MBC值为51.2 mg/L。结论单过硫酸氢钾在较低浓度的条件下,能有效杀灭和抑制所试验的6种水产养殖生物致病菌。

EFFICACY OF POTASSIUM MONOPERSULFATE COMPOUND IN INHIBITING AND KILLING COMMON PATHOGENIC BACTERIA IN THE AQUACULTURE INDUSTRY

Objective To observe the efficacy of potassium monopersulfate compound(PMC) in inhibiting and killing pathogenic bacteria in the aquaculture organisms.Method The minimum inhibitory concentration(MIC) and minimum bactericidal concentration(MBC) of PMC for 6 aquaculture pathogenic bacteria were determined by broth dilution method.Results The MIC of PMC for Vibrio anguillarum and Pseudemonas aeruginosa was 25.6 mg/L;for Vibrio splendidus was 6.4 mg/L;for Vibro parahaemolyticus and Aeromonas hydrophila subsp.hydrophila and Vibrio ichthyoenteri was 51.2 mg/L.The MBC of PMC for V.anguillarum,P.aeruginosa,V.splendidus was 25.6 mg/L;for V.parahaemolyticus,A.hydrophila subsp.hydrophila and V.ichthyoenteri was 51.2 mg/L.Conclusion Potassium monopersulfate compound could kill all of the 6 tested aquaculture pathogenic bacteria at low concentration.