There is a checklist to help owners of small poultry flocks keep their birds free of disease, and one for commercial keepers - Biosecurity and preventing disease in poultry and kept birds.
Mae rhestr wirio i helpu perchnogion heidiau dofednod bach gadw eu hadar yn rhydd rhag clefyd, ac un ar gyfer ceidwaid masnachol – Bioddiogelwch ac atal afiechyd mewn dofednod ac adar caeth.