| CG | AL | AM | AH | SEM | P-value |
Rumen pH | 6.78 | 6.94 | 6.74 | 6.82 | 0.07 | 0.79 |
VFA (mmol/l) | ||||||
Total VFA | 85.14 | 87.59 | 86.34 | 85.46 | 4.34 | 1.00 |
Acetic | 49.81 | 49.82 | 51.12 | 51.28 | 3.35 | 0.10 |
Propionic | 19.61 | 18.90 | 18.41 | 18.38 | 0.60 | 0.92 |
Propionic acid ratio | 2.99 | 3.15 | 3.27 | 3.27 | 0.06 | 0.22 |
Butyrate | 8.23 | 8.17 | 8.17 | 8.25 | 0.28 | 1.00 |
Isobutyric | 0.55 | 0.59 | 0.56 | 0.58 | 0.03 | 0.96 |
Valerate | 0.92 | 1.05 | 1.09 | 1.07 | 0.07 | 0.88 |
Isovaleric | 1.17 | 1.35 | 1.33 | 1.31 | 0.08 | 0.90 |