Nid yw estyn cyfnod y Parth Atal yn rhwystro ceidwaid dofednod rhag marchnata’u cynnyrch fel cynnyrch maes.  O dan ddeddfwriaeth yr UE ar gyfer marchnata dofednod, mae ceidwaid dofednod yn cael cadw eu statws ‘maes’ am 12 wythnos ar ôl i Lywodraeth gyhoeddi datganiad o’r fath.
The extension of the Prevention Zone does not affect the ability of poultry keepers to market their products as free range. Under EU legislation, poultry keepers are able to maintain their free range-status for a period of 12 weeks if Government issues such a declaration.