Table 5.
Number of tested isolates (No) and MIC distribution (%) for Trueperella pyogenes (n = 60) from clinical mastitis in dairy cows. White fields indicate test range for each antibiotic.
| Substance | No | Distribution (%) of MICs (µg/L) | ||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| ≤0.03 | 0.06 | 0.12 | 0.25 | 0.5 | 1 | 2 | 4 | 8 | 16 | 32 | 64 | >64 | ||
| Cephalothin | 60 | 85.0 | 6.7 | 5.0 | 3.3 | |||||||||
| Chloramphenicol | 60 | 25.0 | 48.3 | 26.7 | ||||||||||
| Cefoxitin | 18 | 100.0 | ||||||||||||
| Ciprofloxacin | 60 | 5.0 | 6.7 | 5.0 | 65.0 | 18.3 | ||||||||
| Clindamycin | 60 | 95.0 | 1.7 | 3.3 | ||||||||||
| Enrofloxacin | 18 | 5.6 | 88.8 | 5.6 | ||||||||||
| Erythromycin | 60 | 96.6 | 1.7 | 1.7 | ||||||||||
| Fusidic acid | 60 | 21.7 | 23.3 | 35.0 | 18.3 | 1.7 | ||||||||
| Gentamicin | 60 | 43.3 | 20.0 | 33.3 | 1.7 | 1.7 | ||||||||
| Kanamycin | 42 | 4.8 | 28.6 | 42.8 | 21.4 | 2.4 | ||||||||
| Linezolid | 11 | 100.0 | ||||||||||||
| Oxacillin | 49 | 14.2 | 20.5 | 16.3 | 18.4 | 14.3 | 12.2 | 4.1 | ||||||
| Penicillin | 60 | 86.6 | 10.0 | 1.7 | 1.7 | |||||||||
| Tetracycline | 60 | 86.6 | 5.0 | 1.7 | 1.7 | 5.0 | ||||||||
| Trimethoprim | 60 | 41.7 | 28.3 | 8.3 | 5.0 | 16.7 | ||||||||
| Trimethoprim-Sulphadoxazole | 17 | 11.8 | 11.8 | 29.4 | 5.9 | 5.9 | 35.4 | |||||||