| Dose | Mean | n | S.E. |
|
| 0 | 9.39 | 3 | 0.47 | A |
| 20 | 11.72 | 3 | 0.47 | B |
| 200 | 9.93 | 3 | 0.47 | A |
| 200 | 9.19 | 3 | 0.47 | A |