| Variable | Period I2 | SEM | P <4 | Period II2 | SEM | P <4 | ||
| Treatments3 | Treatments3 | |||||||
| TMR_100 | PMR_75 | TMR_100 | P + C | |||||
| Milk, kg∙d−1 | 33.7 | 32.3 | 0.16 | 0.01 | 28.8 | 27.8 | 0.21 | 0.01 |
| 4% FCM, kg∙d−1 | 33.4 | 31.6 | 0.32 | 0.01 | 28.3 | 25.1 | 0.28 | 0.01 |
| ECM, kg∙d−1 | 33.3 | 31.8 | 0.30 | 0.01 | 27.7 | 25.3 | 0.30 | 0.01 |
| Fat, kg∙d−1 | 1.33 | 1.24 | 0.03 | 0.02 | 1.10 | 0.92 | 0.02 | 0.01 |
| Fat, % | 3.95 | 3.84 | 0.08 | 0.25 | 3.87 | 3.30 | 0.07 | 0.01 |
| Protein, kg∙d−1 | 1.19 | 1.13 | 0.02 | 0.02 | 0.99 | 0.93 | 0.02 | 0.01 |
| Protein, % | 3.53 | 3.47 | 0.02 | 0.02 | 3.42 | 3.31 | 0.02 | 0.01 |
| Lactose, % | 5.04 | 4.99 | 0.02 | 0.01 | 4.95 | 4.88 | 0.02 | 0.01 |
| TS, % | 13.12 | 13.02 | 0.09 | 0.38 | 12.86 | 12.20 | 0.08 | 0.01 |
| SNF, % | 9.28 | 9.25 | 0.02 | 0.41 | 9.11 | 9.04 | 0.03 | 0.14 |
| Urea, % | 0.045 | 0.047 | 0.001 | 0.09 | 0.036 | 0.054 | 0.001 | 0.01 |
| Casein, % | 2.65 | 2.62 | 0.01 | 0.05 | 2.60 | 2.58 | 0.01 | 0.08 |
| SCC | 5.01 | 5.09 | 0.05 | 0.19 | 5.16 | 5.22 | 0.05 | 0.38 |