E. D. Peebles, R. W. Keirs, L. W. Bennett, T. S. Cummings, S. K. Whitmarsh, and P. D. Gerard, “Relationships among Post-Hatch Physiological Parameters in Broiler Chicks Hatched from Young Breeder Hens and Subjected to Delayed Brooding Placement”, Int. J. Poult. Sci., vol. 3, no. 9, pp. 578–585, Aug. 2004, doi: 10.3923/ijps.2004.578.585.