Le bilan azoté dans les exploitations porcines wallonnes : entre contraintes environnementales et qualité différenciée

Nitrogen balance in pig farms of the Walloon Region: between quality of production and environmental constraints. During the year 2002 and 2003, 21 pig farms were audited using the Ecoferme software. This software uses data commonly available at farm level to calculate nitrogen stocks and fluxes within the farm and between the farms, the environment and other enterprises. The farms were of three groups according to their specifications in pig production: organic farms, labelled farms and conventional farms. The results are given in relation to the nitrogen directive of the European Union and t... Mehr ...