31 December 2021, Savigliano (Piedmont), Italy - White leghorn (livornese) hens are raised outdoors at the Cascina Mana organic laying farm, where a closed-loop system is used, whereby the countryside is fertilized while the cereals grown become food for the poultry, reared with 4 metres of free range space each, as per EEC regulations. These hens produce organic eggs.