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Four steers were used in a three-period switchback design to determine effects of dry distillers grains fat level on digestibility. Forage based diets were supplemented with distillers grains with differing fat levels (6.9% or 13.3 % dry matter). Intake and digestibility of DM and organic matter did not differ between treatments. Neutral detergent fiber intake was less and digestibility tended to be less in steers supplemented with high fat distillers grains. Differences in fiber type and intake as well as fat intake may be responsible for the small difference in neutral detergent fiber digestibility.