Digestible carbohydrates include sugars, digestible starch, and glycogen that may be digested by enzymes secreted in the gastrointestinal tract of the pig. Carbohydrates may be classified according to their degree of polymerization: monosaccharides, disaccharides, oligosaccharides, and polysaccharides. Carbohydrates serve as the main source of energy in diets fed to pigs. The current paper reviews the content and variation of fiber fractions in feed ingredients commonly used in swine diets.
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