At the initiative of Mr Bert Van Thielen, with the agreement of the Ardennes studbook, veterinary surgeon J-Philippe Lejeune will present the problem of progressive lymphoedema of the limbs in draught horses: description of the disease, diagnosis, possible treatment and prevention will be discussed. It will also be an opportunity to take stock of the fight against this disease initiated by the Studbook and breeders in collaboration with Mont-le-Soie.