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SHORT COMMUNICATION
Prediction of digestibility of neutral detergent
solubles using the Lucas principle
1
Danish Institute of Agricultural Sciences, Research Centre Foulum,
P.O. Box 50, DK-8830 Tjele, Denmark
Publication date: 2004-08-30
Corresponding author
M. R. Weisbjerg
Danish Institute of Agricultural Sciences, Research Centre Foulum, P.O. Box 50, DK-8830 Tjele, Denmark
Danish Institute of Agricultural Sciences, Research Centre Foulum, P.O. Box 50, DK-8830 Tjele, Denmark
J. Anim. Feed Sci. 2004;13(Suppl. 1):239-242
KEYWORDS
ABSTRACT
Results from sheep digestibility trials, performed at the Danish Institute of Agricultural Sciences in
the period from 1984 until now, were analysed according to the Lucas principle. The Lucas principle
means that across feeds, apparent digestibilities of nutrients in cell contents can be ascribed to a
constant true digestibility and to an endogenous loss, which is a constant proportion of feed dry matter
(DM). Based on mean digestibilities for 493 feed samples, a true Neutral Detergent Solubles (NDS)
digestibility of 101.3% and an endogenous loss of 90.2 g NDS per kg ingested DM were estimated.
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Prediction of legume silage digestibility from various laboratory methods
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