Praktische maatregelen voor lagere ammoniakconcentraties in varkensstallen : maatregelen om NH3-concentraties in varkensstallen onder de 20 ppm te houden

A recent literature analysis by Wageningen University & Research (WUR) shows that an ammonia concentration of 20 ppm or lower can contribute to reducing negative welfare and health effects in pigs. This report answers the question whether pig farmers can take measures in existing barns to ensure that the ammonia concentration remains structurally below 20 ppm. The conclusion is that a combination of measures is required for all animal categories to meet this requirement, and that this entails high costs.