Adaptation of compartmental schemes for interpreting isotope dilution data on volatile fatty acid metabolism in the rumen to the non-steady state and for single-dose injection.
A unifying mathematical analysis of the one-pool and three-pool schemes for estimating acetate, propionate and butyrate production in the rumen from isotope dilution data is presented. Emphasis is given to non-steady-state conditions and to the administration of isotope as a single injection. The single-pool representation is also derived as a special case of the three-pool representation by assuming that the external fluxes are directly proportional to their concentrations in the rumen.
France
J
J
AFRC Institute of Grassland and Environmental Research, Hurley, Maidenhead, Berkshire, U.K.
Siddons
R C
RC
Dhanoa
M S
MS
D000085:Acetates / Q000378:metabolism; D000818:Animals; D002087:Butyrates / Q000378:metabolism; D005232:Fatty Acids, Volatile / Q000378:metabolism*; D007201:Indicator Dilution Techniques; D008433:Mathematics; D008954:Models, Biological; D011422:Propionates / Q000378:metabolism; D012417:Rumen / Q000378:metabolism*; D012418:Ruminants / Q000378:metabolism*
D000085:Acetates; D002087:Butyrates; D005232:Fatty Acids, Volatile; D011422:Propionates