[The reintroduction of protein crops in animal production systems of Marches (Italy) region [dairy cattle]]

alimentation des animaux alimentazione zootecnica animal feeding ash content bovin laitier bovini da latte contenido de ceniza contenido de materia seca contenido proteico contenuto lipidico contenuto proteico crop yield crude fibre crude protein dairy cattle dry matter content faba beans fave fibra bruta fibra grezza fibre brute field experimentation ganado de leche grain granella granos guisante haba lipid content marcas (italia) marche marches (italie) marches (italy) peas piselli pisum sativum pois protein content proteina bruta proteina grezza raciones ration rations razioni rendement des cultures rendimiento de cultivos sperimentazione in campo teneur en cendres teneur en lipides variedades varieties varietà vicia faba