Mae'r mesurau bioddiogelwch ychwanegol hyn, a gyflwynwyd ledled Prydain Fawr ym mis Tachwedd 2020, wedi bod yn arfau hanfodol i ddiogelu diadelloedd ledled y wlad rhag y clefyd sy'n cylchredeg mewn adar gwyllt.
These additional biosecurity measures, which were introduced across Great Britain in November, have been vital tools in protecting flocks across the country from the disease which is circulating in wild birds.