Compara mètodes

	Anàlisi de la fibra detergent neutra/àcida (NDF/ADF)	Digestibilitat Aparente Total del Tracte Digestiu
Camp	Ciències veterinàries	Ciències veterinàries
Família	Process / pipeline	Process / pipeline
Any d'origen	1963	1970
Autor original	Peter J. Van Soest	Agricultural Research Community
Tipus	Analytical Chemistry Method	Balance Study Methodology
Font seminal	Van Soest, P. J., & Wine, R. H. (1967). Use of detergents in the analysis of fibrous feeds: II. A rapid method for the determination of fiber and lignin. Journal of the Association of Official Analytical Chemists, 50(1), 50-55.	Adeola, O. (2001). Digestion and balance techniques in pigs. In A. J. Lewis & L. L. Southern (Eds.), Swine Nutrition (2nd ed., pp. 903-916). CRC Press.
Àlies	fiber fractionation, detergent fiber analysis, forage quality assessment	ATTD, digestibility coefficient, fecal digestibility
Relacionats	3	3
Resum	Neutral Detergent Fiber (NDF) and Acid Detergent Fiber (ADF) analysis is a chemical fractionation method that separates feed components into digestible and indigestible portions based on their resistance to sequential detergent treatments. Developed by Peter J. Van Soest in the 1960s, NDF/ADF analysis provides rapid estimates of forage quality and feed digestibility, making it fundamental to ruminant nutrition and feed evaluation worldwide.	Apparent Total Tract Digestibility (ATTD) is a measure of the proportion of a nutrient consumed in feed that is absorbed by the animal, calculated from the difference between dietary intake and fecal excretion. Standardized since the 1970s, ATTD is essential for quantifying the bioavailability of nutrients in feedstuffs, formulating balanced diets, and comparing the nutritive value of different feed ingredients across diverse animal species.