Table 3.

Effect of EB on DMI and growth performance of backgrounding and finishing feedlot steers

	Treatment					P valuea
Item	Control	0.5% EB	1.0% EB	2.0% EB	SEMb	Treat	Control vs. EB
Total weight gain, kg	397.5	393.4	393.7	378.6	5.44	0.06	0.15
Overall ADG, kg/d	1.71	1.69	1.69	1.62	0.025	0.08	0.17
NEm, Mcal/kg DMc	1.98	1.96	1.99	1.96	0.026	0.76	0.68
NEg, Mcal/kg DMc	1.35	1.33	1.36	1.33	0.023	0.76	0.68
Backgrounding
Shrunk initial BW, kg	276.3	273.3	274.4	274.8	3.92	0.96	0.65
Shrunk final BW, kg	388.0	382.5	384.6	380.2	5.05	0.73	0.34
DMI, kg/d	8.26	8.28	8.02	8.01	0.127	0.32*	0.32
ADG, kg/d	1.36	1.39	1.34	1.31	0.029	0.29*	0.46
G:F	0.17	0.17	0.18	0.17	0.004	0.67*	0.99
NEm, Mcal/kg DMc	1.55	1.55	1.57	1.53	0.021	0.65	0.88
NEg, Mcal/kg DMc	0.97	0.96	0.98	0.95	0.018	0.65	0.88
Finishing
Shrunk initial BW, kg	439.6	432.2	436.3	429.4	5.47	0.56	0.27
Shrunk final BW, kg	670.3	664.1	665.7	661.0	4.31	0.47	0.24
DMI, kg/d	10.4	10.6	10.4	10.1	0.19	0.40*	0.85
ADG, kg/d	1.91	1.95	2.00	1.91	0.036	0.28*	0.65
G:F	0.18	0.18	0.19	0.19	0.004	0.82*	0.68
NEm, Mcal/kg DMc	2.14	2.09	2.13	2.11	0.035	0.81	0.52
NEg, Mcal/kg DMc	1.49	1.44	1.48	1.46	0.031	0.81	0.52

^aControl vs. EB = control vs. all EB treatments.

^b n = 4 per treatment.

^cCalculated based on performance (Zinn and Shen, 1998)

*Indicate significantly different treatment × period means (P < 0.05).