Qiaoying Zeng, Ziping Man, Xuenong Luo, Yongxi Dou, Xuepeng Cai, Antimicrobial Susceptibility Testing of Mycoplasma bovis Isolated from Dairy Cows in Ningxia Hui Autonomous Region, Province of China, Journal of Animal and Veterinary Advances, Volume 11,Issue 24, 2012, Pages 4559-4562, ISSN 1680-5593, javaa.2012.4559.4562, (https://makhillpublications.co/view-article.php?doi=javaa.2012.4559.4562) Abstract: The susceptibilities of 13 recent field isolates of Mycoplasma bovis from the Ningxia province of China to 13 antimicrobial agents were detected using a microbroth dilution method. The rates of resistance to gentamicin, tilmicosin, erythromycin, lincomycin were 8/13, 7/13, 12/13 and 8/13, respectively according to the CLSI resistance breakpoint. Less than 50% of strains were resistance to ciprofloxacin, doxycycline and florfenicol with the resistance rates of 4/13 and 3/13, respectively. The lower resistance rates were observed for tiamulin (0/13), spectinomycin (1/13), enrofloxacin (2/13) and ofloxacin (2/13) suggesting the higher susceptibility of tiamulin, spectinomycin, enrofloxacin and ofloxacin to the M. bovis. Keywords: Mycoplasma bovis;antimicrobial susceptibility;minimum inhibitory concentration;mycoplasma culture;China