While the harvest of the first hay is in full swing, other fodder is not regarding to be razed. Since 1993, each farmer must allocate 7% of his estate to the promotion of biodiversity. In exchange, the Confederation provides land professionals with a contribution – ranging from 450 to 1080 francs per hectare depending on the altitude – in the form of direct payments (OPD). But to receive this aid, farmers must submit to a certain number of rules which can sometimes be restrictive.