Table 3.

Carcass traits and beef production per ha of cropland^a

	Silage type (S)		Inclusion rate (I)			P-values
Item	CON	ENO	12%	24%	SEMb	S	I	S × I
Dressing percent, %c	64.67	64.38	64.47	64.50	0.191	0.30	0.70	0.83
HCW, kg	396	396	392	400	2.2	0.99	0.03	0.37
LM area, cmb	84.8	85.0	85.2	84.6	0.72	0.86	0.57	0.22
RF, cm	1.37	1.37	1.32	1.45	0.046	0.81	0.02	0.25
KPH, %	1.80	1.76	1.79	1.77	0.025	0.19	0.56	0.91
YG	3.33	3.33	3.23	3.43	0.044	0.94	0.01	0.04
RY, %d	49.82	49.86	50.04	49.63	0.098	0.80	0.01	0.06
Estimated EBF, %e	30.87	30.90	30.53	31.25	0.250	0.93	0.06	0.55
FBW at 28% EBF (AFBW), kgf	575	575	575	575	2.7	0.86	0.99	0.82
Marbling scoreg	532	510	519	522	12.7	0.25	0.85	0.39
Beef produced, kg/ha	2,121	1,974	2,008	2,087	25.7	<0.01	0.05	0.34

^aSilage type: CON, conventionally available corn silage without α-amylase trait; ENO, silage from Syngenta Enogen Feed Corn. Dietary DM inclusion: 12, 12% inclusion of diet DM as corn silage; 24, 24% inclusion of diet DM as corn silage.

^bPooled SEM.

^cHCW/FBW shrunk 3%.

^dAs a percentage of HCW.

^eEstimated EBF and AFBW calculated according to the equations described by Guiroy et al. (2002).

^fUSDA Marbling Score 400 = Small⁰ = Low Choice; 500 = Modest⁰ = Average Choice.