Table 3: Commonly used antimicrobials in the farms and antimicrobial susceptibility of E. coli and staphylococci isolated from the poultry faecal samples.
Antimicrobial agent | Frequency | Percentage of Usage | Percent Resistance | |
E. coli | Staphylococci | |||
Penicillin | 18 | 30.0 | 90 | 80 |
Amoxicillin | 9 | 15.0 | 100 | 100 |
Ampicillin | NU | NU | 90 | 100 |
Cloxacillin | NU | NU | 80 | 90 |
Augmentin | NU | NU | 90 | 80 |
Tetracycline | 20 | 33.3 | 90 | 10 |
Oxytetracycline | 29 | 48.3 | NT | NT |
Doxycycline | 17 | 28.3 | NT | NT |
Streptomycine | 10 | 16.7 | 70 | 50 |
Gentamicin | 3 | 5.0 | 50 | 30 |
Erythromycin | 17 | 28.3 | 80 | NT |
Neomycin | 40 | 66.7 | NT | NT |
Chloramphenicol | 27 | 45.0 | 90 | 70 |
Cotrimoxazole | 43 | 71.7 | 90 | NT |
Metronidazole | 7 | 11.7 | NT | NT |
Nalidixic Acid | NU | NU | 100 | NT |
NU: Not Used; NT: Not Tested.