title: [Measurement of digestive transit time in the ruminant calf: comparison and validation of models for fit of the kinetics of passage].
abstract: Three models of marker passage analysis were compared. None of them was found to be superior in fitting the data. The 3 models provided similar estimates of the mean retention time of hay in the whole digestive tract and in the rumen of calves. Discrepancies between models for other compartments are discussed in relation to sampling sites.
authors.affiliation: Station de Recherches sur la Nutrition des Herbivores, I.N.R.A., Theix, Ceyrat, France.
authors.forename: J P
authors.initials: JP
authors.lastname: Lalles
authors.forename: E
authors.initials: E
authors.lastname: Delval
authors.forename: C
authors.initials: C
authors.lastname: Poncet
mesh_terms: D000818:Animals; D002417:Cattle / Q000502:physiology*; D005766:Gastrointestinal Contents; D005772:Gastrointestinal Transit; D008954:Models, Biological
vernacular_title: Mesure du transit digestif chez le veau ruminant: comparaison et validation de modèles d'ajustement des cinétiques de passage.