Cyflwynwyd y gwaharddiad dros dro ym mis Rhagfyr 2016, ar ôl datgan bod Cymru gyfan yn Barth Atal Ffliw Adar. Gnwaed  hynny ar ôl cadarnhau bodolaeth straen H5N8 o’r ffliw adar ledled gwledydd Ewrop, y Dwyrain Canol a Gogledd Affrica.
The temporary suspension was introduced in December 2016 after the declaration of the whole of Wales as an Avian Influenza Prevention Zone. This followed the confirmation of the H5N8 strain of Avian Influenza across European countries, the Middle East and North Africa.