| Pre-treatment | Treatment | Post-treatment | SEM | P | ||||
12 h | 24 h | 36 h | 48 h | Period | Animal | ||||
Plasma glucose, mmol/L | 2.83 | 2.90 | - | - | - | - | 0.25 | 0.87 | 0.57 |
Plasma insulin, μ IU/ml | | 67.60B | - | - | - | - | 2.02 | <0.01 | 0.10 |
Milk yield, g/12 h | 263.19 | 273.57 | 253.03 | 265.10 | 282.03 | 273.30 | 17.54 | 0.47 | <0.01 |
Milk fat, % | | 2.58D | 2.72CD | 3.20BCD | 3.33ABC | 3.467AB | 0.36 | <0.01 | 0.15 |
g/12 h | | | | 8.46BC | 9.19AB | 9.44AB | 0.87 | <0.01 | <0.01 |
Milk protein, % | | 3.27B | 3.28B | 3.40B | 3.47B | 3.48B | 0.13 | <0.01 | <0.001 |
g/12 h | | 8.97ab | 8.33b | 9.09ab | 9.76ab | 9.51ab | 0.74 | 0.13 | <0.01 |
Lactose % | 4.20 | 4.09 | 4.27 | 4.31 | 4.28 | 4.25 | 0.21 | 0.83 | 0.06 |
g/12 h | 11.07 | 11.14 | 10.80 | 11.46 | 12.04 | 11.64 | 0.97 | 0.68 | <0.01 |
SNF, % | 9.16 | 8.51 | 8.69 | 8.85 | 8.90 | 8.94 | 0.29 | 0.22 | <0.001 |
g/12 h | 24.10 | 23.23 | 22.01 | 23.57 | 25.01 | 24.46 | 1.84 | 0.47 | <0.01 |