Table 4.
Antimicrobial usage and resistance to selected antimicrobial agents used in commercial farms in Nigeria
| Antimicrobials | Resistance (% of strains) (n = 26) |
Antimicrobial resistant genes present (% of strains) (n = 26) | Average antimicrobial usage (mg/kg/week) | Correlation coefficients (r) |
|---|---|---|---|---|
| Trimethoprim | 19 | 12 | 1 | |
| Tetracycline | 58 | 50 | 5 | a{0.9 [CI = 0.2–0.99, p = 0.03] |
| Sulphonamides | 65 | 46 | 4 | b{0.83 [CI = −0.004-0.99, p = 0.05] |
| Gentamicin | 42 | 35 | 2 | |
| Ciprofloxacin | 46 | 23 | 3 |
Coefficient between antimicrobial usage and percent of isolates with resistance acoefficient between antimicrobial usage and isolates with resistance genes b, n Number of isolates, C.I Confidence interval.