Table 1. MICs (MBECs) (µg/ml) of antibiotics against different strains of M. hyopneumoniae.
| Designated strain | ENR | MAR | CL | TYL | FF | GM | OTC |
|---|---|---|---|---|---|---|---|
| M-ATTC 21774 | 0.03 | 0.5 | 1 | 0.03 | 0.12 | 0.25 | 0.12 |
| M-ATTC 25156 | 0.06 | 0.5 | 1 | 0.03 | 0.25 | 0.5 | 0.12 |
| M-IS-1 | 0.06 | 1 | 0.5 | 0.06 | 0.25 | 0.25 | 0.5 |
| (32) | (256) | (512) | (32) | (128) | (512) | (32) | |
| M-IS-2 | 0.06 | 1 | 2 | 0.039 | 0.5 | 0.25 | 0.5 |
| (>2,048) | (256) | (512) | (128) | (512) | (512) | (32) | |
| M-IS-3 | 0.06 | 1 | 1 | 0.03 | 0.25 | 0.5 | 0.5 |
| (32) | (512) | (256) | (256) | (1,024) | (256) | (256) | |
| M-IS-4 | 0.03 | 1 | 1 | 0.06 | 0.5 | 0.5 | 0.5 |
ENR: enrofloxacin, MAR: marbofloxacin, CL: colistin, TYL: tylosin, FF: florfenicol, GM: gentamicin and OTC: oxytetracycline.