Mininum inhibitory concentration of eigth antibiotics toward isolates of Streptococcus suis

  • Felipe Masiero Salvarani Universidade Federal de Minas Gerais, Escola de Veterinária, Belo Horizonte, MG
  • Flávia Ferreira Pinto Universidade Federal de Minas Gerais, Escola de Veterinária, Belo Horizonte, MG
  • Francisco Carlos Faria Lobato Universidade Federal de Minas Gerais, Escola de Veterinária, Belo Horizonte, MG
  • Ronnie Antunes de Assis Laboratório Nacional Agropecuário de Minas Gerais
  • Luciana Aramuni Gonçalves Universidade Federal de Minas Gerais, Escola de Veterinária, Belo Horizonte, MG
  • Nelson Éder Martins Universidade Federal de Minas Gerais, Escola de Veterinária, Belo Horizonte, MG
  • Inácio José Clementino Universidade Federal da Paraíba, Patos, PB
  • Adrienny Trindade Reis Costa Instituto de Pesquisas Veterinárias Especializadas, Belo Horizonte, MG
Keywords: Streptococcus suis, Microbial sensitivity tests, Antibiotic, Swine

Abstract

The minimun inhibitory concentration (MIC) was determined toward amoxicilin, ampicilin, penicillin, ceftiofur, florfenicol, lincomycin, trimethoprim-sulfadiazine and tetracycline for 75 strains of Streptococcus suis. The MIC was performed on sheep blood agar plates containing concentrations varying from 0,25 to 256 µg/ml of the antibiotic described above. The amoxicilin in the concentrations of 1 and 2 µg/ml, florfenicol in the concentration of 1 µg/ml and trimethoprim-sulfadiazine in the concentrations of 2 e 8 µg/ml, were the antibiotics that presented minor resistance. In contrast, the ampicilin, tetracycline, ceftiofur and lincomycin, presented MIC of 64 and 128 µg/ml, 64 and 128 µg/ml, 128 and 256 µg/ml and >;256 µg/ml, respectively. The results of this study show that the amoxicilin and florfenicol are the antibiotics of choice for the treatment of diseases by S. suis in swine.

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Published
2008-02-01
How to Cite
Salvarani, F., Pinto, F., Lobato, F., Assis, R., Gonçalves, L., Martins, N., Clementino, I., & Costa, A. (2008). Mininum inhibitory concentration of eigth antibiotics toward isolates of Streptococcus suis. Brazilian Journal of Veterinary Research and Animal Science, 45(1), 41-47. https://doi.org/10.11606/issn.1678-4456.bjvras.2008.26719
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