Degradability | Actual GP, ml per: | Actual CH4 mL per | Predicted GP | Predicted CH4 | ||||||
---|---|---|---|---|---|---|---|---|---|---|
NDFd, g/kg NDF | TDMd, g/kg DM | g DM | g TDMd | g DM | g dNDF | g TDMd | 100 mL GP | mL/g DM | mL/g DM | |
Diet | ||||||||||
Reference | 567 | 840 | 274 | 325 | 34.2 | 168 | 40.8 | 12.5 | 244 | 38.8 |
Low NDF | 612A | 872A | 288A | 331 | 34.4 | 174 | 39.3 | 11.9 | 250 | 39.6 |
High NDF | 480B | 767B | 228B | 300B | 30.8B | 151B | 39.9 | 13.5A | 220 | 35.9 |
Low CP | 545 | 835 | 277 | 333 | 33.4 | 169 | 39.9 | 12.0 | 242 | 38.0 |
High CP | 542 | 831 | 255B | 310 | 34.0 | 176 | 41.0 | 13.3A | 234 | 37.8 |
Low lipid | 583 | 845 | 265 | 315 | 33.1 | 159 | 39.0 | 12.3 | 251 | 37.2 |
High lipid | 531 | 826 | 253B | 304B | 32.2B | 169 | 38.8 | 12.5 | 238 | 37.9 |
SEM | 10.3 | 4.2 | 5.6 | 7.2 | 0.53 | 3.4 | 0.63 | 0.40 | 10.9 | 2.09 |
P-value | <0.001 | <0.001 | <0.001 | <0.001 | <0.001 | <0.001 | 0.025 | <0.001 | 0.33 | 0.70 |
P-value of contrasts | ||||||||||
Low vs High NDF | <0.001 | <0.001 | <0.001 | <0.001 | <0.001 | 0.002 | 0.99 | <0.001 | 0.99 | 0.99 |
Low vs High CP | 0.99 | 0.99 | <0.001 | 0.009 | 0.99 | 0.99 | 0.99 | <0.001 | 0.99 | 0.99 |
Low vs High lipid | 0.003 | 0.028 | 0.017 | 0.99 | 0.99 | 0.99 | 0.99 | 0.99 | 0.99 | 0.99 |
Incubation time | ||||||||||
24 h | 472 | 801 | 250 | 314 | 29.6 | 172 | 37.0 | 11.9 | 214 | 34.9 |
48 h | 631 | 860 | 276 | 320 | 36.7 | 161 | 42.6 | 13.2 | 260 | 41.5 |
SEM | 10.5 | 3.5 | 7.4 | 8.8 | 0.59 | 1.8 | 0.66 | 0.54 | 7.6 | 1.69 |
P-value | 0.009 | 0.007 | 0.14 | 0.69 | 0.014 | 0.046 | 0.027 | 0.22 | 0.06 | 0.12 |
RMSE | 15.5 | 7.2 | 4.0 | 7.6 | 0.69 | 3.2 | 0.94 | 0.25 | 21.9 | 3.78 |