Table 1. Criteria used for qualitative assessment of the susceptibility of Salmonella isolates recovered from cattle and swine samples for antimicrobials in which resistant isolates were found.
| Antimicrobial | MIC Cut-offs Values | Reference | ||
|---|---|---|---|---|
| Susceptible | Intermediate | Resistant | ||
| Ampicillin (A) | ≤8 | 16 | ≥32 | [17] |
| Ceftiofur (C) | ≤2 | 4 | ≥8 | [17] |
| Enrofloxacin (E) | ≤0.25 | 0.5 | ≥1 | [17] |
| Florfenicol (F) | ≤4 | 8 | ≥8 | [17] |
| Gentamicin (G) | ≤4 | 8 | ≥16 | [17] |
| Neomycin (N) | ≤8 | ≥16 | Internal | |
| Oxytetracycline (O) | ≤4 | 8 | ≥16 | [17] |
| Spectinomycin (S) | NAa | NAa | NAa | NAa |
| Sulfadimethoxine (Sul) | ≤256 | ≥512 | Internal | |
| Trimethoprim/ Sulfamethoxazole (Ts) | ≤2 | ≥4 | [17] | |
aNA: not available