Fig. 1.
Concentration of doxycycline in broiler bones following different routes of drug administration
| Post-treatment day | Age of birds (days) | Group 1 DC mean concentration (± SD, μg/kg) | Group 2 DC mean concentration (± SD, μg/kg) | Group 3 DC mean concentration (± SD, μg/kg) |
|---|---|---|---|---|
| 1 | 20 | 5,840 ± 843 | 132 ± 38 | - |
| 4 | 24 | 2,860 ± 410 | 83.1 ± 21 | - |
| 8 | 28 | 1,760 ± 322 | 45.5 ± 15 | - |
| 15 | 35 | 610 ± 150 | 41.6 ± 13 | - |
| 18 | 38 | 168 ± 84 | 16.4 ± 5.4 | - |
| 22 | 42 | 135 ± 51 | 9.62 ± 2.1 | 2285 ± 362 |