1979: Institut National Agronomique Paris-Grignon : Diplôme d'Agronomie Approfondie : Science et Techniques des Productions Animales, Mention Alimentation 1985: PhD : Diplôme de Docteur-Ingénieur de l'INA-PG 2004: HDR, INPL, Univ. Nancy INRA scientist since 1981, with a permanent position since 1985. Director of the UMR PL research unit (2008-2011) and deputy director ffrom the large research unit PEGASE (2011-2016) Scientific expertise - Dairy cow, lactation, intake, milk production, feeding behaviour - Feeding systems, prediction, modelling (Fill unit system, INRA Feed tables, INRAtion software) - Livestock farming system, environment, modelling(with recent development in precision livestock farming)