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31326 Castanet Tolosan CEDEX - France

Dernière mise à jour : Mai 2018

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Modelling beef herd management decisions

INRA Prod. Anim., 16(4), 263-270.


1 Inra, Unité de Recherches sur les Herbivores, Départements Elevage et Nutrition des Animaux, Systèmes Agraires et Développement, Theix 63122 Saint-Genès Champanelle

2 Enita de Clermont-Ferrand, RN 89, Site de Marmilhat, 63370 Lempdes
3 Maison de l’Agriculture, BP 522, 71010 Mâcon


The aim of this work was to analyse decision-makingof cattle stockbreeders according to herd management:rules, occurrences of interventions, relations with theproject of production. The management of the herdwas described and formalized using data collectedduring 2 successive surveys on 12 farms specialized inbeef production. Three categories of indicators mobilizedby the stockbreeders can be discriminated: indicatorsdealing with the instantaneous state of theanimals, indicators dealing with the individual historyof the animals (lifetime performance) and exogenousindicators, independent of the animals (state of thenutritional resource, economic context). According tothe project of production, these indicators are mobilizeddifferently by the stockbreeders and 4 prototypesof herd management were then defined. This kind ofanalysis will be used in a modelling build-up process tosimulate herd functioning.

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