| Rations | Observation periods | |||
| Week 1 | Week 2 | Week 3 | Week 4 | |
| CMD | 54.184b | 65.077b | 67.295c | 68.968b |
| ACD | 40.272b | 41.486a | 53.379b | 62.009b |
| MMD | 7.653* | 48.908a | 31.292a | 40.903a |
| Pr > F | 0.000 | 0.000 | 0.000 | 0.000 |
| Significance | Yes | Yes | Yes | Yes |