Senior lecturer in Animal Sciences. Head of the School of Agricultural Sciences, Hassan II Agronomy and Veterinary Medicine (www.iav.ac.ma), Rabat, Morocco. Main research fields are (a) Dairy value chain analysis in Morocco and North African countries; (b) Rearing practices and their effects on animal products quality characteristics; (c) Assessing crop/livestock integration in various agricultural systems (rain-fed plains, irrigation schemes, oases, etc.); (d) Studying resources uses efficiency (capital, labour, land and water) in agricultural systems with a majority of smallholder farms.