Effect of dietary lipid inclusion from by-product-based pellets on dry matter intake, ruminal fermentation, and nutrient digestion in finishing beef heifers

This study was designed to evaluate dry matter intake (DMI), ruminal fermentation, digesta outflow, omasal flow of N constituents, and total-tract digestibility in response increasing dietary lipid content derived from high-lipid by-product-based pellets for finishing beef cattle. Five ruminally cannulated heifers were used a 5 × Latin square design. Dietary treatments iso-nitrogenous with ether extract (EE) concentrations resulting 3.5%, 4.2%, 4.7%, 5.1%, 5.9% matter. Periods 28 d duration the first 19 adaptation last 9 sample data collection. Dry intake, pH, short-chain fatty acid not affected by EE (P ≥ 0.10). Increasing increased outflow rumen < 0.001). Apparent linearly ≤ 0.03) levels. Results indicate that 3.5% up DM including does alter site nutrient no negative effects on or apparent ruminal, digestibility.