in vitro activities of ofloxacin ( oflx ) , a new quinolone derivative , against 29 strains of mycoplasma gallisepticum was compared with those of 4 commonly used antimicrobial agents , doxycycline ( doxy ) , tylosin ( ts ) , spectinomycin ( spcm ) and thiamphenicol ( tp ) .
C0028902
ofloxacin
C1136254
antimicrobial agents