Antimicrobial susceptibility and detection of genes for antimicrobial resistance of mycoplasma bovis, staphylococcus aureus and escherichia coli
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Background: Mycoplasma bovis (Gram-positive bacteria) belongs the class Mollicutes and to the family Mycoplasmataceae (Maunsell and Donovan, 2009). It is a cell wall-less bacterium and are instead enveloped by a complex plasma membrane. In cattle, M. bovis is widely known causes various diseases, such respiratory disease, mastitis, arthritis and otitis. Methods: The present study was aimed to determine the antimicrobial susceptibility and identify the genes for antimicrobial resistance of Mycoplasma bovis PG45, Staphylococcus aureus and Escherichia coli. M. bovis PG45, S. aureus and E.coli were subjected to test for their sensitivity to various clinically important antibiotics (Cefotaxime, Cefuroxime, Cefaclor Cefalexin, Ofloxacin, Norfloxacin, Nalidixic acid, Amikacin, Ampicillin, Oxacilin, Amoxyclav, Rifampicin, Penicillin G and Tylosin). The minimal inhibitory concentration (MIC) of each antimicrobial agent was determined by applying an agar dilution method. Polymerase Chain reaction (PCR) was used to amplify specific DNA fragments and thus to determine the presence or absence of a target gene (VspA, tet k and tetA). Result: Showed the MIC values and the presence of VspA, tetK and tetA in M. bovis PG45, S. aureus and E. coli respectively.