Table 1.
Antibacterial sensitivity profile of E. coli isolates (n = 164) recovered from backyard chickens, Jhang, Pakistan.
| Drug Class | Antibiotic Agent | No. of Isolates | ||
|---|---|---|---|---|
| Resistant n (%) |
Intermediate n (%) |
Susceptible n (%) |
||
| Penicillin | Amoxicillin/Clavulanate | 58 (35.4%) | 7 (4.3%) | 99 (60.4%) |
| Cephalosporin | Cefotaxime (3rd Generation) | 126 (76.8%) | 4 (2.4%) | 34 (20.7%) |
| Phenicol | Chloramphenicol | 99 (60.4%) | 9 (5.5%) | 56 (34.1%) |
| Polymyxin | Colistin | 115 (70.1%) | 11 (6.7%) | 38 (23.2%) |
| Quinolone/Fluoroquinolone | Enrofloxacin | 117 (71.3%) | 13 (7.9%) | 34 (20.7%) |
| Ciprofloxacin | 19 (11.6%) | 8 (4.9%) | 137 (84%) | |
| Norfloxacin | 71 (43.3%) | 6 (3.7%) | 87 (53.1%) | |
| Aminoglycosides | Gentamicin | 94 (57.3%) | 8 (4.9%) | 62 (37.8%) |
| Neomycin | 20 (12.2%) | 7 (4.3%) | 137 (83.5%) | |
| Carbapenem | Imipenem | 16 (9.8%) | 10 (6.1%) | 138 (84.1%) |
| Tetracycline | Doxycycline | 129 (78.6%) | 17 (10.4%) | 18 (10.9%) |
| Sulfonamide | Trimethoprim/sulfamethoxazole | 113 (68.9%) | 21 (12.8%) | 30 (18.3%) |
| Macrolide | Tylosin | 156 (95.1%) | 3 (1.8%) | 5 (3.0%) |