Rhaid i chi ddefnyddio mesurau bioddiogelwch llym i atal unrhyw ddeunyddiau, offer, cerbydau, dillad, porthiant neu wely adar a allai fod wedi'u llygru gan adar gwyllt rhag dod i'ch safle.Mae manylion llawn a rhestr wirio ar gael.
You must apply strict biosecurity measures to prevent any materials, equipment, vehicles, clothing, feed or bedding that could have been contaminated from wild birds coming onto your premises.Full details and checklist are available.