Effect of dietary lipid inclusion from byproduct-based pellets on dry matter intake, ruminal fermentation, and nutrient digestion in finishing beef heifers
2021 | 2020
Joy, Faustin | Johnson, Jordan A | Grka, Paweł | McKinnon, John | Hendrick, Steve | Penner, Gregory B.
This study was designed to evaluate dry matter intake (DMI), ruminal fermentation, ruminal digesta outflow, omasal flow of N constituents, and ruminal and total-tract digestibility in response to increasing dietary lipid content derived from high-lipid byproduct-based pellets for finishing beef cattle. Five ruminally cannulated heifers were used in a 5 5 Latin square design. Dietary treatments were iso-nitrogenous with increasing ether extract (EE) concentrations resulting in dietary concentrations of 3.5, 4.2, 4.7, 5.1 and 5.9% of dry matter. Periods were 28 d in duration with the first 19 d used for dietary adaptation and the last 9 d for sample and data collection. Dry matter intake, ruminal pH, omasal flow of N constituents, and SCFA concentrations were not affected by increasing dietary EE content (P ≥ 0.10). Increasing dietary EE content increased outflow of EE from the rumen (P
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