Table 4
Treatment effects on growth performance and carcass weight of feedlot steers

	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