Table 3.
Antimicrobial susceptibility patterns of E. coli and Salmonella isolates recovered from chickens and ducks.
| Antimicrobial agent | No. of avian E. coli isolates (%) showing antimicrobial susceptibility patterns |
No. of avian Salmonella species (%) showing antimicrobial susceptibility patterns |
||||||
|---|---|---|---|---|---|---|---|---|
| Chickens (165) |
Ducks (75) |
Chickens (90) |
Ducks (90) |
|||||
| Sensitivity | Resistance | Sensitivity | Resistance | Sensitivity | Resistance | Sensitivity | Resistance | |
| Doxycycline | 0 (0) | 165 (100) | 15 (20) | 60 (80) | 22 (24.4) | 68 (75.6) | 73 (81.1) | 17 (18.9) |
| Amoxicillin/clavulanic acid | 27 (16.4) | 138 (83.6) | 0 (0) | 75 (100) | 0 (0) | 90 (100) | 22 (24.4) | 68 (75.6) |
| Ampicillin | 29 (17.6) | 136 (82.4) | 0 (0) | 75 (100) | 0 (0) | 90 (100) | 24 (26.7) | 66 (73.3) |
| Streptomycin | 27 (16.4) | 138 (83.6) | 65 (86.7) | 10 (13.3) | 45 (50) | 45 (50) | 73 (81.1) | 17 (18.9) |
| Neomycin | 0 (0) | 165 (100) | 30 (40) | 45 (60) | 20 (22.2) | 70 (77.8) | 69 (76.7) | 21 (23.3) |
| Oxyetracycline | 0 (0) | 165 (100) | 0 (0) | 75 (100) | 10 (11.1) | 80 (88.9) | 60 (66.7) | 30 (33.3) |
| Erythromycin | 80 (48.5) | 85 (51.5) | 45 (60) | 30 (40) | 22 (24.4) | 68 (75.6) | 30 (33.3) | 60 (66.7) |
| Colistin sulfate | 165 (100) | 0 (0) | 60 (80) | 15 (20) | 0 (0) | 90 (100) | 35 (38.9) | 55 (61.1) |
| Trimethoprim/sulfamethoxazole | 108 (65.5) | 57 (34.5) | 45 (60) | 30 (40) | 90 (100) | 0 (0) | 90 (100) | 0 (0) |
| Florfenicol | 80 (48.5) | 85 (51.5) | 45 (60) | 30 (40) | 45 (50) | 45 (50) | 90 (100) | 0 (0) |