[Cereal carbohydrates in the diet of the weaned piglet: dosage of cell wall constituents, digestive use and nutritional signification]

absorption digestive afrecho bran carbohidratos carbohydrates cell walls cellulose celulosa cereales cereals digestive absorption glucide nutritive value pared celular paroi cellulaire piglets porcelet ration rations son trigo valeur nutritive valor nutritivo wheats