| Model gm0 | Model gm1 | Whatever | |
| Estimate | Estimate | Estimate | |
| (S.E.) | (S.E.) | (S.E.) | |
| (Intercept) | -1.269* | -1.398* | 251.405* |
| (0.145) | (0.228) | (6.825) | |
| period2 | -1.171* | -0.992* | . |
| (0.291) | (0.305) | ||
| period3 | -1.301* | -1.128* | . |
| (0.313) | (0.326) | ||
| period4 | -1.782* | -1.58* | . |
| (0.413) | (0.429) | ||
| Days | . | . | 10.467* |
| (1.546) | |||
| N | 56 | 56 | 180 |
| RMSE | 1 | 25.592 | |
| Random Effects (σ) | |||
| Residual | 25.59 | ||
| herd | 0.642 | ||
| Subject | 24.74 | ||
| Subject:Days | 5.92 | ||
| * | |||