Effect of low-oil corn dried distillers' grains with solubles on growth performance, carcass traits and beef fatty acid profile of feedlot cattle

The objective of this study was to investigate the effects of dietary inclusion of low-oil corn dried distillers' grains with solubles (LO-DDGS) on growth, carcass traits and beef fatty acids profiles of finishing feedlot cattle. One hundred and eighty British crossbred steers (450+/-28.5 kg; six pens/treatment) were offered barley grain-barley silage as the control diet with LO-DDGS replacing barley grain at 200 and 300 g kg(-1) dry matter basis in treatment diets. Compared with control, LO-DDGS at 200 g kg(-1) did not affect growth performance or carcass traits, whereas at 300 g kg(-1) it decreased (P < 0.05) gain: feed, but increased (P < 0.05) levels of desirable fatty acids in beef. LO-DDGS can replace 200 g kg(-1) barley grain in finishing feedlot diets without undesirable impacts on growth performance or carcass traits.