Circadian incubation for broiler quality and robustness

Thermal conditioning in a commercial hatchery, is the practice that embryos receive short, daily periods of heat or cold stimuli of 1-2°C, during the second or third week of incubation. This procedure, named ‘Circadian Incubation’ improves hatchability and feed conversion rates. By Dr Marleen Boerjan, Pas Reform Hatchery Technologies, the Netherlands, Lenise Inácio de Souza, Pas Reform do Brasil and Fernanda Flores, Universidade Estadual de Campinas, SP, Brasil Modern poultry integration