Urea fermentation potential | P- value | |||||
---|---|---|---|---|---|---|
Item | 0 | 0.6 | 1.2 | Linear | Quadratic | SEM |
Days on test | 40 | 40 | 40 | |||
Pen replicates | 5 | 5 | 5 | |||
Live weight (kg)1 | ||||||
Initial | 469 | 465 | 470 | 0.83 | 0.28 | 3.22 |
Final | 510 | 502 | 501 | 0.17 | 0.54 | 4.40 |
DMI (kg/d) | 7.32 | 6.99 | 6.94 | 0.32 | 0.67 | 0.26 |
ADG (kg/d) | 1.04 | 0.93 | 0.78 | <0.01 | 0.71 | 0.06 |
G:F | 0.142 | 0.134 | 0.112 | <0.01 | 0.32 | 0.005 |
Diet NE (Mcal/kg) | ||||||
Maintenance | 2.37 | 2.33 | 2.18 | 0.03 | 0.37 | 0.21 |
Gain | 1.67 | 1.64 | 1.50 | 0.03 | 0.37 | 0.21 |
Observed/expected NE | ||||||
Maintenance | 1.07 | 1.05 | 0.98 | 0.03 | 0.37 | 0.02 |
Gain | 1.09 | 1.07 | 0.98 | 0.03 | 0.37 | 0.03 |
HCW (kg) | 336 | 331 | 330 | 0.16 | 0.67 | 3.02 |
Dressing (%) | 65.9 | 66.0 | 65.8 | 0.80 | 0.67 | 0.23 |