Table 1.
Numerical distribution of the Mg isolates within the dilution ranges of the tested antibiotics. The dilution ranges present on the MIC plates are indicated as white boxes in the table. The numbers located in gray boxes indicate those isolates for which growth was not inhibited by the highest concentration present in the MIC plate.
| Antibiotic | MIC Values (µg/ML) | ||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 0.003906 | 0.0078125 | 0.015625 | 0.03125 | 0.0625 | 0.125 | 0.25 | 0.5 | 1 | 2 | 4 | 8 | 16 | 32 | 64 | |
| Oxytetracycline | 9 | 14 | 2650 | 9 | 390 | 5 | 1 * | ||||||||
| Doxycycline | 3 | 2550 | 18 | 590 | |||||||||||
| Enrofloxacin | 3 | 4 | 5 | 2 | 6 | 9 | 3850−90 | ||||||||
| Erythromycin | 3950 | 2890 | |||||||||||||
| Tilmicosin | 31 | 750 | 1 | 4 | 2490 | ||||||||||
| Tylosin | 6 | 14 | 1550 | 3 | 1 | 3 | 2 | 5 | 1190 | 1 | 1 | 1 | 4 | ||
| Spiramycin | 3950 | 1 | 2 | 2590 | |||||||||||
| Tiamulin | 25 | 1350 | 6 | 11 | 890 | 4 | |||||||||
| Lincomycin | 1 | 6 | 20 | 6 | 1250 | 11 | 1190 | ||||||||
| Florfenicol | 5 | 27 | 3250−90 | 3 | |||||||||||
The MIC values are expressed in μg/mL. The dilution range of each antibiotic is represented by the grey cells (e.g., enrofloxacin was tested from 0.125 to 16 μg/mL). Superscript numbers indicate the MIC50 and MIC90 values. * Isolate numbers outside dilution range were not inhibited by the highest concentration of antibiotic.