病鷄由來 사모레라속균의 各種 抗菌性 藥劑에 대한 感受性

Antimicrobial Drug Susceptibility of Salmonella Isolated from Chicken in Korea

The antimicrobial drug susceptibility of 65 isolates of Salmonella recovered from chicken submitted for diagnosis at the Poultry Disease Diagnostic Service Laboratory during 1980 to 1981 was determined by the disc diffusion method. All isolates of Salmonella tested were susceptible to ampicillin, colistin, chloramphenicol, gentamicin, kanamycin and trimethoprim-sulfamethoxazole. A higher percentages of them were resistant to streptomycin(70.8%), sulfonamides(53.9%) and tetracycline(41.5%) while only 4.6% was resistant to nitrofurantoin. Among 65 isolated tested, 61.5% were resistant to 2 or more drugs and a total of 9 resistance patterns were observed. The most frequent resistance pattern of them was Sm Su pattern and foll-lowed by Sm Tc pattern and Sm pattern; these resistance patterns comprised more then half(57.0%) of the total isolates.