Week after calving | 1 | 2 | 3 | 4 | 5 | 6 | 7 | S.E. | P | |||
---|---|---|---|---|---|---|---|---|---|---|---|---|
 |  |  |  |  |  |  |  |  |  | ovarian resumption | day | ovarian resumption × day |
Milk yield (kg/day) | A | 17 | 19 | 24 | 23 | 25 | 26 | 27 | 2.67 | NS | * | NS |
 | B | 21 | 19 | 20 | 23 | 25 | 25 | 27 |  |  |  |  |
Milk Fat (%) | A | 7.03 | 5.31 | 4.53 | 4.48 | 4.65 | 4.41 | 4.70 | 0.47 | NS | ** | NS |
 | B | 7.10 | 5.40 | 4.18 | 4.53 | 4.53 | 4.50 | 4.55 |  |  |  |  |
Milk Protein (%) | A | 3.53 | 3.83 | 3.78a | 3.34 | 3.15 | 3.20 | 3.18 | 0.17 | * | * | NS |
 | B | 3.60 | 3.37 | 3.25b | 3.28 | 3.08 | 3.23 | 3.03 |  |  |  |  |
DMI (kg/day) | A | 11.3 | 14.5 | 15.5 | 15.8 | 18.0 | 17.9 | 19.3 | 1.28 | NS | ** | NS |
 | B | 11.2 | 11.8 | 13.6 | 16.9 | 17.1 | 17.5 | 18.6 |  |  |  |  |
Energy Balance (MJ/day) | A | -28.66 | -7.64 | -12.66 | -3.81 | 2.65 | 1.52 | 5.80 | 8.31 | NS | ** | NS |
 | B | -42.60 | -27.48 | -2.40 | 8.19 | 3.90 | 4.31 | 5.71 |  |  |  |  |