Table 5.
Relationship between phenotypic antimicrobial resistance and detection of resistance genes in MRSA isolated from turkeys and broilers.
| Antimicrobial agent | Phenotypic resistance | Genotypic resistance | |||
|---|---|---|---|---|---|
| Turkeys (%) | Broilers (%) | Resistance genes | Turkeys (%) | Broilers (%) | |
| Beta-lactam | 100 | 100 | mecA, blaZ/I/R | 100 | 100 |
| Tetracycline | 100 | 100 | tetK, tetM | 100 | 100 |
| Erythromycin | 52.6 | 100 | ermA, ermB, ermC | 55.6 | 100 |
| Fosfomycin | ND | ND | fosB | 61.1 | 55.5 |
| Streptogramin | ND | ND | vgaA | 61.1 | 0 |
| Tobramycin | ND | ND | aadD | 50 | 11.1 |
| Streptothricin | ND | ND | sat | 11.1 | 0 |
| Lincosamide | 5.6 | 0 | lnuA | 5.6 | 0 |
| Neomycin | ND | ND | aphA3 | 5.5 | 0 |
| Kanamycin | 5.2 | 11 | aphA3 | 5.5 | 0 |
| aadD | 0 | 11.1 | |||
| Gentamicin | 0 | 0 | aacA-aphD | 0 | 0 |
| Chloramphenicol | 0 | 0 | cat | 0 | 0 |
| Sulphonamides | 0 | 0 | dfrS1 | 0 | 0 |
| Fucidic acid | ND | ND | far1 | 0 | 0 |
ND, not done.