Referência:
Castrillo C, Vicente F, Guada JA. The effect of crude fibre on apparent digestibility and digestible energy content of extruded dog foods. J Anim Physiol Anim Nutr (Berl). 2001 Aug;85(7-8):231-6. doi: 10.1046/j.1439-0396.2001.00329.x. PMID: 11686794.
Resumo:
The apparent digestibility of nutrients and energy of 38 commercial dry extruded dog foods was measured using six adult (2 to 3 year-old) female Beagles. Diets contained [in g/kg dry matter (DM)]: 164–360 crude protein (CP); 79–261 ether extracts (EE); 8–33 crude fibre (CF) and 318–585 nitrogen free extracts (NFE). Apparent energy digestibility ranged from 77.3 to 91.6%, and was closely related to CF content (r=–0.85), yielding the resultant equation: GED (%)=94.00 – 4.04 × CF (% DM). The estimation of digestible energy content of foods from digestibility coefficients predicted from the above equation and gross energy measured or estimated from the Weende fractions, provides a more accurate prediction of experimental values than the Atwater approach followed by the National Research Council and the Association of American Feed Control Officials.
Palavras-chave: fibra, fibra bruta, digestibilidade, ingredientes, digestibilidade aparente