Table 9.
Non-wildtypes (NWT) of Escherichia coli isolates from the weaning and growth samplings in Denmark (n = 374).
| Antibiotic | (Antibiotic Group) | No. of NWT Isolates |
|---|---|---|
| Ampicillin | (penicillins) | 133 |
| Trimethoprim | (trimethoprim) | 133 |
| Tetracycline | (tetracyclines) | 100 |
| Streptomycin | (aminoglycosides) | 100 |
| Sulfamethoxazole | (sulfonamides) | 95 |
| Spectinomycin | (aminoglycosides) | 47 |
| Ciprofloxacin | ((flouro-)quinolones) | 47 |
| Nalidixic acid | (quinolones) | 26 |
| Amoxiclav | (penicillins) | 21 |
| Chloramphenicol | (amphenicols) | 20 |
| Ceftiofur | (3rd gen. cephalosporins) | 17 |
| Florfenicol | (amphenicols) | 5 |
| Colistin | (polymyxins) | 5 |
| Neomycin | (aminoglycosides) | 3 |
| Gentamicin | (aminoglycosides) | 2 |
| Cefotaxime | (3rd gen. cephalosporins) | 2 |
| Apramycin | (aminoglycosides) | 0 |
Weaning: bacterial sampling in June 2018. Growth: bacterial sampling in October 2018. Amoxicillin in combination with clavulanic acid (2:1).