Z.R. Diakité

Agri-Food and Biosciences Institute · Sustainable Agri-Food Sciences Division

Greenhouse gas (GHG) emissions are transboundary. Therefore, associated impacts to the climate system depend on the volume of global emissions in the atmosphere, regardless of where the emissions were generated. However, GHG mitigation policies are determined at national level, address national priorities and proceed at different speeds. As a conse...

Management practices of cattle farming systems must be improved, particularly to increase the systems’ feed self-sufficiency, food production and environmental performances. In mountain areas of the Massif Central (central France), mixed dairy/suckler cattle systems enable farmers to use grassland resources better and cope with economic fluctuation...

The overall objective is to document and test the sensitivity of changes to assumptions related to UK trade and agricultural policy outside the Common Agricultural Policy in the FAPRI UK model system. The model revisions discussed include:  The degree to which direct payments are assumed to influence production levels in England;  Change price t...

Virtual experimental design using metamodels of the bioeconomic optimization model Orfee (Mosnier et al. 2017) to predict sensitivity of its predictions of net profit to simultaneous variation in milk, beef, and “concentrated feed” prices among three levels (-25%, baseline, +25%: i.e., factors of 0.75, 1.00, and 1.25, respectively). The metamodels...

Virtual experimental design using metamodels of the bioeconomic optimization model Orfee (Mosnier et al. 2017) to predict sensitivity of its predictions of net profit to simultaneous variation in milk, beef, and “concentrated feed” prices among three levels (-25%, baseline, +25%: i.e., factors of 0.75, 1.00, and 1.25, respectively). The metamodels...

Ruminant production is predominant in mountainous areas, where grassland plots are often difficult to reach or non-machinable. Many mountain-area livestock systems combine a dairy-cow herd with a sucker-cattle herd. Here we posit that mixed herds allow better utilization of grazed grass than specialized herds on plots with constraints. To determine...

Mountain farmers face additional structural constraints (e.g., steep slopes, high elevations, fragmented fields) along with the regular risks inherent to agriculture, such as economic fluctuations. We thus hypothesized that simultaneously producing dairy and beef herds (i.e., “mixed cattle systems”) on mountain farms is a good compromise between a...

Les prairies permanentes constituent des réservoirs potentiels d’alimentation fourragère et occupent plus de 66% des surfaces dans les zones de montagne. Ces zones présentent de fortes contraintes naturelles qui rendent difficile la valorisation des ressources herbagères. Les caractéristiques géographiques des parcelles et la structure des exploita...

Les systèmes d’élevage double troupeaux bovins laitiers bovins allaitants herbagers, permettraient de mieux valoriser les ressources herbagères que les troupeaux bovins spécialisés dans les zones de contraintes avec de bonnes performances économiques. Afin de vérifier cette hypothèse, des simulations ont été réalisées à partir du modèle d’optimisat...

Ruminant production is predominant in mountainous areas. In those areas, some plots of grasslands cannot be mechanized or are difficult to reach. Many mountain breeding systems combine in the same farm, a herd of dairy cows and a suckling cattle herd. We hypothesize that double herds allow a better grazed grass utilization rate than specialized her...

Cattle farming systems with dairy and suckling herds in the Massif Central would improve the valuation of grassland resources and offer better economic performance than specialized herd systems. To verify these hypotheses, we used the bio economic optimization model "Orfée" to represent two Farm-types of the south of Auvergne (ref. BL18 and BL22)....

Cattle farming systems with dairy and suckling herds in the Massif Central would improve the valuation of grassland resources and offer better economic performance than specialized herd systems. To verify these hypotheses, we used the bio economic optimization model ”Orfée” to represent two Farm-types of the south of Auvergne (ref. BL18 and BL22)....