Dairy, pork and beef farmers arrived on the outskirts of the Normandy town on Sunday aboard some 330 tractors and other farm vehicles, according to local officials.
Around 10 per cent of the farming industry is on the edge of financial ruin according to government figures, with price competition amongst supermarkets being blamed for the squeeze being faced by farmers.
But farmers have also faced increased competition from the import of meat products from Germany and Poland, while dairy farmers are facing similar difficulties.
One said that he received €300 per tonne of milk, yet he needed to make €370 to actually make a living for his family, while just to cover costs he needs around €350.
The agriculture minister, Stephane Le Foll, has said that he wants to discuss the issues on Thursday with farmers, who say he should come to visit them now and require them to head to Paris.