In Switzerland research by Agroscope shows that Esparsette or Sainfoin (Onobrychis viciifolia) can reduce methane and ammonia emissions by cows. Freshly fed sainfoin had a methane-reducing effect in dairy cows compared to grass-clover, with no effect on milk yield. Relative to the intake, a larger part of the N excretion takes place in the faeces and not in the urine when sainfoin is fed, which can have a positive effect on the potential ammonia emission.