Ice-berg Diseases in Sheep – Ovine Pulmonary Adenocarcinoma (OPA)
Posted in Sheep, Livestock, Health Planning [SP.RA.HP]
OPA – Ovine Pulmonary Adenocarcinoma (OPA) was first detected within the UK in 1888. Often referred to as “Jaagsiekte” it is caused by a retrovirus. This virus infects the lungs of sheep, causing tumours to develop and fluid to accumulate within the airways. OPA is a huge source of economic loss for farmers, with initial losses as high as 20-25% – reducing to 1-5% in endemic flocks. At present, there is no commercially available test or vaccine for OPA.
Sign up to the FAS newsletter
Receive updates on news, events and publications from Scotland’s Farm Advisory Service