Reason 1: Rations with high starch fermentability directly reduce rumen pH, and reduce forage NDF digestibility. This will lead to a decrease in the production of ruminal acetate and butyrate, and promote the generation of undesirable fatty acid byproducts in the rumen. In contrast, sugar fermentation usually does not decrease rumen pH. Higher
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Sugar Source Can Increase Fiber Digestibility: What is the Economic Impact?
Stephen M. Emanuele PH.D. PASDairy Technical Bulletin There are three factors that influence the impact of sugar on fiber digestion. They are the rumen degradable protein (RDP) content of the diet; forage content of the diet; and amount of sugar and starch in the diet. Due to the interaction between RDP and sugar source, it is important to compare the impact of sugar on
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