title: A unifying mathematical analysis of methods to estimate rumen volume using digesta markers and intraruminal sampling.
abstract: A theoretical exposition of methods for estimating the quantity of digesta in the rumen using digesta-flow markers and intraruminal sampling is given, with emphasis on the kinetic assumptions underlying each method. Single- and dual-marker approaches to estimating volume in steady and non-steady-state are presented.
authors.affiliation: AFRC Institute for Grassland and Animal Production, Maidenhead, Berkshire, U.K.
authors.forename: J
authors.initials: J
authors.lastname: France
authors.forename: R C
authors.initials: RC
authors.lastname: Siddons
authors.forename: M S
authors.initials: MS
authors.lastname: Dhanoa
authors.forename: J H
authors.initials: JH
authors.lastname: Thornley
mesh_terms: D000818:Animals; D005766:Gastrointestinal Contents; D005772:Gastrointestinal Transit; D007700:Kinetics; D008433:Mathematics; D008954:Models, Biological; D012417:Rumen / Q000033:anatomy & histology*; D013048:Specimen Handling