| in vitro susceptibilities of field isolates of mycoplasma agalactiae to oxytetracycline, tylosin, enrofloxacin, spiramycin and lincomycin-spectinomycin. | the minimum inhibitory concentrations (mics) of tetracycline, enrofloxacin, tylosin, spiramycin and a lincomycin:spectinomycin 1:2 combination, against 24 sicilian isolates of mycoplasma agalactiae, the causative organism of contagious agalactia were determined in vitro by a broth dilution method. enrofloxacin was the most effective antimicrobial in vitro with a range of mic values from 0.125 to 0.500 microg/ml and an mic(50) of 0.203 and mic(90) of 0.365 microg/ml. using the mic(50) and mic(90) ... | 2003 | 12801456 |