Table 4.
Example calculation of the amount of substances used in mg/PCU, in nDDDvet/PCU as well as in nUDDA/PCU, when 100 broilers are treated with different substances (PCU = 1 kg)
| Substance | Number of animals | Actual weight (kg) | Treatment duration (days) | Dose (mg/kg body weight) | Amount substance (mg) | mg/PCU | Average weight (kg) = PCU | Defined dose mg/kg | nDDDvet | nDDDvet/PCU | Number of substances | nUDDA | nUDDA/PCU |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Tylosin | 100 | 0.8 | 3 | 100 | 24,000 | 300 | 1 | 81 | 296.3 | 2.96 | 1 | 300 | 3 |
| Lincomycin | 100 | 0.8 | 4 | 17 | 5,440 | 68 | 1 | 22 | 247.3 | 2.47 | 1 | 400 | 4 |
| Spectinomycin | 100 | 0.8 | 4 | 34 | 10,880 | 136 | 1 | 38 | 286.3 | 2.86 | 1 | 400 | 4 |
| Combination Lincomycin & Spectinomycin | 100 | 0.8 | 4 | 51 | 16,320 | 204 | 1 | 533.6 | 5.34 | 2 | 800 | 8 |