Killing Efficacy of “JunTai Kang”— a Chinese Herbal Medicines on Pathogenic Bacteria of Fish

Juntai Kang,a new preparation of fish drμg is made from the effective components extracted from Chinese herbal medicines. The drμg has strongly bactericidal action against 6 strains of pathogenic bacteria of fish.For minimal inhibitory concentration(MIC) Pseudomonas fluorescens was 0.78 μg/mL and minimal bactericidal concentration(MBC) was 3.13 μg/mL. MIC for Aeromonas punctata f. Intestinalis was 1.56 μg/mL and MBC was 6.25μg/mL. MIC For MIC Aeromonas hydrophila was 0.39 μg/mL and MBC was 3.13 μg/mL. MIC Fox Flexibacter calumnaris was 0.78 μg/mL and MBC was 3.13 μg/mL. MIC For Proteus vulgaris was 1.56 μg/mL and MBC was 6.25 μg/mL. For MIC Edwardsilla tarda was 0.2 μg/mL and MBC was 1.56 μg/mL.The MBC/MIC was 4~8. The result revealed that the drμg had high sensitivity to these pathogenic bacterias and had strongly bactericidal action. use of the experimental fishery in Shaanxi, Guangdong, Jiangsu, Ningxia, Henan etc. indicated that The drug not only has effect on preventing and curing bacterial disease of fish but also has some action on preventing and curing viral disease of fish