A decision by the Duchy of Cornwall to phase out farming of Pacific Oysters in all the estuaries it owns is leaving several oyster farms in Devon and Cornwall facing closure. Meanwhile in Scotland there is just one remaining native oyster fishery, but there are plans to re-introduce them into an environmentally protected area of the Dornoch Firth in the Highlands. The mandatory housing measures for poultry and captive birds, which were introduced across England and Wales in the autumn to help stop the spread of bird flu last year, are to be lifted next week. And research into new ideas and approaches in farming, that take place not in a university or company lab but literally in the field, or greenhouse or milking parlour. Presented by Caz Graham Produced by Alun Beach