MV Accredited relates to this ‘shed’ for displaying sheep at regular farming/rural shows, it simply means the sheep sheltered here are certified as MV free.
“Maedi Visna (“MV”) also known as Ovine Progressive Pneumonia (OPP) is a chronic viral disease affecting the lungs and nervous system of sheep which can be transmitted between Flocks. The virus which causes Caprine Arthritis Encephalitis (CAE) in goats is very similar to MV virus and there is evidence that cross infection can occur between species. Therefore for the scheme purposes “Animal” refers to sheep and goats.” – SAC
—Stephen—–
Stephen G Hipperson 
May be my eyes, but the building appears to be suspended above the green “waves”. What an interesting building and a very effective photograph. Striking! 🙂
Thank you!