SHORT COMMUNICATION
Estimating fractional rate of NDF degradation from
in vivo digestibility
More details
Hide details
1
Faculty of Agricultural Sciences, University of Aarhus, Research Centre Foulum, P.O. Box 50, DK-8830 Tjele, Denmark
Publication date: 2007-09-17
Corresponding author
M. R. Weisbjerg
Faculty of Agricultural Sciences, University of Aarhus, Research Centre Foulum, P.O. Box 50, DK-8830 Tjele, Denmark
J. Anim. Feed Sci. 2007;16(Suppl. 2):145-150
KEYWORDS
ABSTRACT
Fractional rate of degradation (kd) of potential degradable NDF (dNDF) was estimated based
on in situ degradation profiles. In situ values were compared to values for kd which were calculated
based on in vivo NDF digestibility and dNDF concentration for 61 forage samples including both
young and very mature grasses and legumes. The calculation only failed for three samples, and in
situ estimates correlated reasonably well to calculated values. Calculated kd for dNDF has a large
potential for use in practice as a low resource method.