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KMID : 0353019740110020259
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Korean Journal of Public Health
1974 Volume.11 No. 2 p.259 ~ p.264
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A Study on the Sensitivity of Staphylococcus aureus and Streptococcus spp.,Causative Organism of Bovine Mastitis against Various Antibiotics
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Kim Young-Soo
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Abstract
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The sensitivity of 60 strains of Staphylococcus aureus and 70 strains of Streptococcus spp. in the Bovine Mastitis against seven antibiotics were measured and the results are:
1. The number of resistant strains among 60 strains of Staphylococcus aureus to penicillin, streptomycin,neomycin, novobiocin, oxytetracycline, erythromycin and chloramphenicol were 21(35.00%), 5(8.33%),48(80.00%), 7(ll.67%), 14(23.33%), 4(76.67%) and 22(36.67%) respectively.
2. The number of resistant strains of 70 strains of Streptococcus spp. against penicillin, streptomycin, neomycin, novobiocin, oxytetracycline, erythromycin and chloramphenicol were 44(62.86%), 4(5.7%), 54(77.14%), 3(4.29%), 16(22.86%), 32(45.71%) and 36(51.43%) respectively.
3. The minimum inhibitory concentration(MIC) of antibiotics against staphylococcus aureus to penicillin, streptomycin, neomycin, novobiocin, oxytetracycline, erythromycin and chloramphenicol were 0.06 to 16㎍/ml, 0.25 to 256㎍/ml, 0.50 to 64㎍/ml, 0.25 to 32㎍/ml, 0.50 to 256㎍/ml, 0.25 to 256㎍/ml and 0.50 to 256㎛/ml respectively, and that against Streptococcus spp. to penicillin, streptomycin, neomycin, novobiocin, oxytetracycline, erythromycin and chloramphenicol were 0.06 to 16㎍/ml, 0. 12 to 256㎍/ml, 0.25 to 64㎍/ml, 0.25 to 128㎍/ml, 0.12 to 256㎍/ml, 0.50 to 256㎍/ml and 0.25 to 256㎍/ml respectively. The MIC antibiotics to Staphylococcus aureus and Streptococcus spp was similar.
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KEYWORD
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