Commercial hatcheries concentrate their efforts on maximum hatching of fertile eggs and on marketing viable chicks adapted to customer requirements. Environmental conditions for incubation are controlled automatically and are safeguarded by supplementary mechanisms activated in case of unexpected malfunction or disruption of energy sources. High standards of sanitation are essential for the production of high-quality chicks. Generally, economic interests of industrial hatcheries favour the best care of marketable chicks, as this has an influence on the birds’ future performance. Every person working with birds in a hatchery should be able to understand and accept his/her responsibility to prevent avoidable suffering. Before duties are assigned,.