Table 3.

Cumulative steer growth performance and efficiency of dietary NE utilization^a

Item	CON	DFM	SEM	P-value
Pens	10	10	—	—
No. steers	88	88	—	—
Days on feed	77	77	—	—
Initial BW, kgb	253	252	0.2	0.10
Final BW, kgc	351	352	1.2	0.60
ADG, kg	1.27	1.29	0.016	0.47
DMI, kg	7.47	7.50	0.016	0.66
G:F	0.171	0.172	0.0020	0.64
Observed dietary NE, Mcal/kg
Maintenance	1.83	1.84	0.014	0.70
Gain	1.19	1.20	0.013	0.59
Observed/expected dietary NEd
Maintenance	1.00	1.01	0.008	0.70
Gain	1.00	1.01	0.011	0.59

^aTreatments included: no DFM contained in the diet (CON) and a diet that contained the experimental Saccharomyces cerevisiae DFM (Levucell SC, CNCM l-1077, Advantage Titan at 10 g/steer/d providing 8 × 10⁹ CFU, Lallemand Animal Nutrition; DFM).

^bAverage of BW from November 5, 2019 and November 6, 2019 was used as the initial BW (no shrink was applied to this BW).

^cA 4% pencil shrink was applied to day 77 BW to account for digestive tract fill.

^dActual trial NE based upon weighted average of diets fed were: 1.83 Mcal/kg of NEm and 1.19 Mcal/kg of NEg.