Table 3. Treatments’ mean values associated to analyzed metabolites through the experimental periods for grazing dairy cows under tropical conditions.
| Periods (days with respect to partum) | |||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Variable | Treatment | −30 | SE | −15 | SE | 0 | SE | 15 | SE | 30 | SE | 45 | SE | Covariate ( p-value) | Interaction ( p-value) |
| BHB (mmol/l) | 1 | 0.49a | 0.2 | 0.57a | 0 | 0.79a | 0 | 1.07a | 0 | 0.95a | 0 | 0.81a | 0 | 0.001 | <0.0001 |
| 2 | 0.58a | 0.08 | 0.58a | 0.08 | 0.72a | 0.08 | 0.65c | 0.08 | 0.64c | 0.08 | 0.79a | 0.08 | |||
| 3 | 0.49a | 0.03 | 0.4b | 0.03 | 0.74a | 0.03 | 0.93b | 0.03 | 0.86bc | 0.03 | 0.63a | 0.03 | |||
| NEFA (mmol/l) | 1 | 0.25a | 0.12 | 0.39a | 0.08 | 0.68a | 0.08 | 0.50a | 0.08 | 0.25a | 0.08 | 0.24a | 0.08 | 0.0142 | 0.0338 |
| 2 | 0.23a | 0.06 | 0.33a | 0.06 | 0.55a | 0.06 | 0.32a | 0.06 | 0.35a | 0.06 | 0.28a | 0.06 | |||
| 3 | 0.26a | 0.03 | 0.30a | 0.03 | 0.36b | 0.03 | 0.29a | 0.03 | 0.23a | 0.03 | 0.19a | 0.03 | |||
| Glucose (mmol/l) | 1 | 3.58a | 0.4 | 3.79a | 0.17 | 2.39ab | 0.17 | 2.44a | 0.18 | 2.85a | 0.12 | 2.85a | 0.37 | NS | 0.0003 |
| 2 | 3.74a | 0.27 | 3.25b | 0.17 | 2.03b | 0.17 | 2.13a | 0.18 | 1.91b | 0.12 | 2.4a | 0.37 | |||
| 3 | 2.82a | 0.27 | 2.94b | 0.17 | 2.79a | 0.17 | 2.52a | 0.18 | 2.38ab | 0.12 | 2.62a | 0.37 | |||
| Insulin (pmol/l) | 1 | 125.0b | 12.4 | 79.3b | 8.2 | 54.11b | 8.2 | 63.69a | 8.2 | 66.4b | 8.2 | 85.65b | 8.2 | NS | <0.0001 |
| 2 | 187.1a | 10.6 | 159.6a | 10.6 | 102.0a | 10.6 | 74.97a | 10.6 | 72.68b | 10.6 | 85.7b | 10.6 | |||
| 3 | 132.9b | 16.3 | 154.5a | 16.3 | 126.3a | 16.3 | 86.0a | 16.3 | 120.6a | 16.3 | 129.9a | 16.3 | |||