Mae'r mesurau newydd ynghylch siediau, a ddaw i rym ar 14 Rhagfyr, yn golygu y bydd yn ofyniad cyfreithiol i bob ceidwad adar gadw eu hadar dan do a dilyn mesurau bioddiogelwch llym er mwyn cyfyngu ar ledaeniad y clefyd a cheisio ei waredu.
The new housing measures, which will come into force on 14 December, mean that it will be a legal requirement for all bird keepers to keep their birds indoors and to follow strict biosecurity measures in order to limit the spread of and eradicate the disease.