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Application of an in vitro gas method to understand the effects of natural plant products on availability and partitioning of nutrients

Published online by Cambridge University Press:  27 February 2018

H. P. S. Makkar ,
M. Blümmel  and
K. Becker
H. P. S. Makkar
Affiliation:
Institute for Animal Production in the Tropics and Subtropics (480), University of Hohenheim, D-70593 Stuttgart, Germany
M. Blümmel
Affiliation:
Institute for Animal Production in the Tropics and Subtropics (480), University of Hohenheim, D-70593 Stuttgart, Germany
K. Becker
Affiliation:
Institute for Animal Production in the Tropics and Subtropics (480), University of Hohenheim, D-70593 Stuttgart, Germany
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Extract

In vitromethods for laboratory estimation of food degradation are important tools for nutritionists.These methods either measure substrate disappearance by quantifying incubation residues or record fermentation products such as microbial biomass, short-chain fatty acids (SCFA) or gas volume (Blümmel et al., 1997a). Recently, the surge of interest in the efficient utilization of roughage diets has caused an increase in the use of gas methods because of the possibility of estimating the extent and rate of degradation in one sample by time series measurements of the accumulating gas volume. We combined gas measurements with residue determinations (truly degraded substrate) or microbial mass determination after fermentation to study the effects of natural plant products, in particular tannins and saponins, on the availability and partitioning of nutrients.

Type
Complex rumen transformations
Information
BSAP Occasional Publication , Volume 22: In vitro techniques for measuring nutrient supply to ruminants , 1998 , pp. 147 - 150
Copyright
Copyright © British Society of Animal Science 1998

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