title: Estimating the production of faeces by ruminants from faecal marker concentration curves.
abstract: The use of faecal marker concentration curves, in conjunction with compartmental analysis, is examined as a method for predicting faecal output in ruminants. Formulae for faecal production are derived for the various multicompartment models currently used to interpret marker concentration data. A comparison of observed and model-derived estimates of faecal dry matter production using three different markers is given for sheep consuming hay or a mixed diet.
authors.affiliation: AFRC Institute for Grassland and Animal Production, Berkshire, U.K.
authors.forename: J
authors.initials: J
authors.lastname: France
authors.forename: M S
authors.initials: MS
authors.lastname: Dhanoa
authors.forename: R C
authors.initials: RC
authors.lastname: Siddons
authors.forename: J H
authors.initials: JH
authors.lastname: Thornley
authors.forename: D P
authors.initials: DP
authors.lastname: Poppi
mesh_terms: D000818:Animals; D004032:Diet; D005243:Feces; D008954:Models, Biological; D012418:Ruminants / Q000502:physiology*; D012756:Sheep