Education: the CDA The CDA (Center of Alimentary Instruction) is the center of education of Mercazaragoza where he can find professionals of the world of the feeding. The CDA has the following targets: Starting of courses destined for the formation of autonomous professional butchers, fishmongers and fruiterers: strengthening of the sector of retailers Starting of courses for the wholesalers who operate already in Mercazaragoza Detect and to start courses requested by the sector Developing courses according to the demands of companies