Item | S | H | SEM | Significance | ||||
C | I | C | I | F | I | F × I | ||
Fermentation quality | ||||||||
pH | 5.56 | 4.33 | 5.13 | 4.24 | 0.17 | ** | ** | NS |
Lactic acid (g∙kg−1 DM) | 2.0 | 52.9 | 1.9 | 55.5 | 7.24 | NS | ** | NS |
Acetic acid (g∙kg−1 DM) | 21.7 | 7.1 | 19.7 | 7.4 | 2.24 | NS | ** | NS |
Propionic acid (g∙kg−1 DM) | 14.2 | 0.2 | 15.4 | 0.3 | 2.24 | NS | ** | NS |
Butyric acid (g∙kg−1 DM) | 23.0 | 0.8 | 29.3 | 1.1 | 4.25 | NS | ** | NS |
NH3-N (g∙kg−1 TN) | 174.6 | 57.8 | 209.4 | 48.5 | 2.14 | ** | ** | ** |
V-score | 51.4 | 97.0 | 46.9 | 96.9 | 7.43 | NS | ** | NS |
Chemical composition | ||||||||
DM (g∙kg−1) | 188 | 222 | 181 | 218 | 5.7 | NS | ** | NS |
OM (g∙kg−1 DM) | 924 | 934 | 913 | 922 | 2.4 | ** | ** | NS |
CP (g∙kg−1 DM) | 132 | 127 | 113 | 142 | 3.3 | * | * | ** |
EE (g∙kg−1 DM) | 49 | 41 | 45 | 44 | 1.0 | NS | * | * |
ADF (g∙kg−1 DM) | 423 | 394 | 430 | 390 | 5.5 | NS | ** | NS |
NDF (g∙kg−1 DM) | 666 | 683 | 680 | 665 | 4.0 | NS | NS | NS |
K (g∙kg−1 DM) | 31.4 | 26.2 | 34.6 | 29.8 | 0.98 | * | * | NS |
Ca(g∙kg−1 DM) | 1.7 | 1.0 | 1.4 | 1.5 | 0.08 | * | * | ** |
Mg (g∙kg−1 DM) | 0.9 | 0.7 | 0.8 | 0.7 | 0.02 | ** | ** | ** |
GE (MJ∙kg−1 DM) | 19.8 | 19.2 | 19.3 | 19.1 | 0.09 | NS | NS | NS |