Table 2.
Duration of time that different diets were fed to steers fed the control diet and steers receiving 0, 2, 4, 6, or 8 d of voluntary ractopamine removal before a common day of slaughter across treatments1
Duration of ractopamine removal, d | Initial control diet duration, d | Ractopamine diet duration2, d | Control diet duration during removal, d | Total study duration, d |
---|---|---|---|---|
Control | 42 | 0 | 0 | 42 |
0 | 10 | 32 | 0 | 42 |
2 | 8 | 32 | 2 | 42 |
4 | 6 | 32 | 4 | 42 |
6 | 4 | 32 | 6 | 42 |
8 | 2 | 32 | 8 | 42 |
1Control cattle received the control diet without ractopamine for the entire 42-d study.
2The ractopamine diet contained 30.1 g of ractopamine/kg of dry matter.