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Introduction to High-Energy Feedstuffs

High-energy feedstuffs are defined as feedstuffs high in available energy and containing less than 20% crude protein. Feeds high in available energy are feedstuffs high in nonfibrous carbohydrates and/or high in lipids. Available energy of a feedstuff may be expressed as DE, TDN, ME, and/or NE. Nonfibrous carbohydrates include compounds such as simple sugars and starch. As stated previously, lipids are the most energy dense nutrient of the six nutrients. High-energy feedstuffs are added to the ration to increase energy content per unit of dry matter and therefore increase the energy intake without requiring an increase in total intake. High-energy feedstuffs also contribute protein, minerals, and vitamins in various amounts. During ration formulation, the additional nutrients provided by the feedstuff contribute to the total amount of each nutrient present in the ration. Modules IV and V will discuss the major categories of high-energy feedstuffs and describe a few of the more popular feedstuffs within each category. The major categories of high-energy feedstuffs are cereal grains, the milling by-products of cereal grains, high carbohydrate liquid feeds, by-product dry feeds, roots and tubers, fats and oils, and additional high-energy feedstuffs.

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