Modelling the dynamics of ruminal acidosis

Daniel Sauvant (1) , Sylvie Giger-Reverdin (1) , Francois Meschy (1)

1 PNA - Physiologie de la Nutrition et Alimentation

Sub-acute rumen acidosis (SARA) is one of the major nutritional disorders occurring in intensive ruminant production, particularly in high producing cows. Beyond experimentations, modelling is a way to progress in integration, updating and renewal of knowledge. Prediction of mean values of rumen pH is a well studied issue. In contrast, SARA and the dynamics of pH (Pitt & Pell, 1997) have been rarely modelled. The present target was to underline the major issues dealing with modelling kinetics of pH and episodes of SARA.

Mots clés: empirical modelling; mechanistic modelling; sub-acute ruminal acidosis; modélisation empirique; modélisation mécaniste; pH; sub acidose ruminale

Domaines: Sciences du Vivant [q-bio]

Daniel Sauvant, Sylvie Giger-Reverdin, Francois Meschy. Modelling the dynamics of ruminal acidosis. Meeting of the Animal Science Modelling Group, Jul 2009, Montréal, Canada. pp.534-535. ⟨hal-01173594⟩