Session 05 Gas emissions (building, storage, pasture) of dairy systems combining or not grazing and housing Testing the effects of grassland swards for yield, greenhouse gas emission mitigations and soil health. How to mitigate methane and ammonia emissions at the farm level with innovative approaches Effect of mitigation measures on GHG and ammonia emissions of pilot farms in European countries Economic aspects of mitigation practices on pilot dairy farms in Europe K. IMPACT OF SORBENT APPLICATION ON NH3, CO2 AND CH4 GAS EMISSIONS FROM DAIRY CATTLE MANURE