BUDAPEST, Feb 9 (Reuters) - Hungarian poultry processing firm SaGa Foods Zrt, a unit of Bernard Matthews, Europe's largest turkey producer, said on Friday its exported products could not be the source of a bird flu outbreak in Britain. "SaGa Foods Zrt. excludes the possibility that its exported turkey products could be the source of the avian influenza that broke out at the turkey farm of Bernard Matthews in Holton, UK," the company said in a statement. SaGa said its export shipments do not carry any infection and its products meet the necessary food safety requirements. It also said it does not do any business with the goose farms in eastern Hungary where bird flu was detected last month.