Le remplacement du tourteau de soja importé dans les systèmes d'alimentation des élevages bovins laitiers transfrontaliers franco-belges

Abstract : In recent years, societal demand concerning livestock farming has evolved. Because of its environmental impact, the import of raw materials in order to produce animal feed is questioned. Led within the framework of the PROTECOW project, the aim of this study is to replace – partially or totally - the soybean meal used for the diets of dairy cows. The project is settled in the French-Belgian cross-border area, in the Hauts-de-France, Wallonia and Flanders regions. In order to present farms that are representative of the study area, three different models of dairy farms were created. They differ in a number of aspects linked to their surface and/or the feed ration of dairy cows. Simulations that has been made with these models of farms led to representative solutions (at least at the time of the study) that satisfy regional actor's expectations. Solutions impact the farms at different levels: from simple changes in the feed supply to a complete change of the practices. The selected solutions are the following; replacement of soybean meal with rapeseed meal, set up of forage catch crop for cattle feed, improvement of the quality of grass silage, self-consumption of faba bean and conversion to organic farming. All the simulations lead to a significant reduction of the soybean meal incorporation’s, from -14 % and -100 %. The majority of the simulations (4/5) allows a favorable evolution of economic indicators in regards to the initial situation.
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Master Thesis
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Morgane Pape. Le remplacement du tourteau de soja importé dans les systèmes d'alimentation des élevages bovins laitiers transfrontaliers franco-belges. Sciences du Vivant [q-bio]. 2018. ⟨dumas-01971877⟩

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