Europe's largest poultry processor Doux is to close two of its French sites, with the loss of more than 640 jobs.

The closures of its turkey plant at Locmine and chicken site at Chatelet, as well as a decision to stop duck slaughtering at its Pleucadeuc abattoir, were announced at a group staff committee meeting.

Hit by last year's spiralling cereal prices and the strong euro, last year's results still bore the scars of the 2006 French bird flu crisis. The group posted a 2007 loss of more than EUR35m (US$55.3m), despite a 17% lift in sales to EUR1.5bn.

Owner of the Père Dodu brand, the group is owned by the Doux family and it is a global player in poultry and poultry products, processing two million birds a day around the world.