Archer , G. S. (2015). Timing of Light Exposure During Incubation to Improve Hatchability, Chick Quality and Post-Hatch Well-Being in Broiler Chickens: 21 or 18 Days. International Journal of Poultry Science, 14(5), 293–299. https://doi.org/10.3923/ijps.2015.293.299