Table 4.
p-values obtained after studying the association between resistance genes and a phenotype resistant for β -lactams, macrolides and tetracyclines in the 48 Pasteurella multocida isolates.
| Antimicrobial Resistance Genes * | β-lactams | Macrolides $ | Tetracyclines | ||
|---|---|---|---|---|---|
| Amoxicillin | Tilmicosin | Doxycycline | Oxitetracycline | ||
| β-lactam resistance genes | blaROB1 | 0.5536 | - | - | - |
| blaTEM | 0.8408 | - | - | - | |
| Macrolide resistance genes | ermA | - | 0.7764 | - | - |
| ermC | - | 0.6538 | - | - | |
| msrE | - | 0.7392 | - | - | |
| Tetracycline resistance genes | tetA | - | - | 0.9131 | 0.9063 |
| tetB | - | - | 0.5146 | 0.7255 | |
* Only resistance genes to three antibiotic families were tested (β-lactams, macrolides and tetracyclines). $ Tilmicosin was the only macrolide tested because no resistant strains were obtained for tildipirosin and tulathromycin.