Korean J Vet Res > Volume 56(2); 2016 > Article
Korean Journal of Veterinary Research 2016;56(2):109-111.
DOI: https://doi.org/10.14405/kjvr.2016.56.2.109    Published online July 7, 2016.
In vitro antibiotic susceptibility of field isolates of Mycoplasma hyopneumoniae and Mycoplasma hyorhinis from Korea
Jisung Jang1, Kiju Kim1, Soyeon Park1, Bokyoung Park1, Hyungmin Um2, Marc Coulier3, Tae-Wook Hahn1
1Department of Veterinary Medicine, College of Veterinary Medicine & Institute of Veterinary Science, Kangwon National University
2DongBang Co., Ltd.
3ECO Animal Health
The present study was conducted to determine the antibiotic susceptibilities of local Mycoplasma hyopneumoniae (Mhp) and Mycoplasma hyorhinis (Mhr) filed isolates. Minimum inhibitory concentrations (MICs) of Mhp and Mhr field isolates (twelve each) obtained from enzootic pneumonia-like lung lesions during 2009-2011 from Korea were determined using the broth microdilution method. Tylvalosin showed the highest activity against Mhp and Mhr field isolates, with $MIC_{90}$ values of $0.06{mu}g/mL$ and $0.12{mu}g/mL$, respectively. Therefore, Korean Mhp and Mhr isolates are highly susceptible to tylvalosin.
Key Words: Mycoplasma hyopneumoniae, Mycoplasma hyorhinis, antimicrobials, minimum inhibitory concentration, porcine enzootic pneumonia

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