3. Results
Initial and final BW did not differ between treatments, but animals from the control group had greater (P < 0.01) BW
on day 70 when compared with those from the DDGS/Corn treatment (Table 2). Overall ‘DG was similar for animals from
both groups, but in period 1, ADG was greater (P < 0.01) for cattle fed the control treatment, whereas in period 2, ADG was
greater (P < 0.01) for cattle fed the DDGS/Corn treatment. Dry matter intake was greater (P < 0.01) for animals fed the control
treatment in period 1, but did not differ in period 2, when both groups were fed the corn-based diet. Nevertheless, the
differences in period 1 were enough to elevate (P = 0.01) overall DMI for the 126-day feeding period in cattle fed control over
those fed DDGS/Corn. When considering the entire feeding period, G:F did not differ between dietary treatments. However,
G:F was 7.2% less (P = 0.01) in period 1, but 14.4% greater (P < 0.01) in period 2 for cattle fed the DDGS/Corn treatment
compared with those fed the control treatment. Dietary NEm and NEg differed between treatments only in period 2, with
lower (P < 0.01) values observed for cattle from the control treatment. Nevertheless, the observed-to-expected ratios of NEm
and NEg were greater (P ≤ 0.01) for the DDGS/Corn treatment in all periods when compared to the control. In addition, total
corn intake was greater (P < 0.01) for the control treatment in period 1 in comparison with the DDGS/Corn treatment, but
did not differ in period 2, when both groups were fed the corn-based diet. However, the differences in period 1 were enough
to elevate (P < 0.01) overall total corn intake in control steers compared with the DDGS/corn treatment.