Olanrewaju , H.A., J.L. Purswell, S.D. Collier, and S.L. Branton. 2020. “Interactive Effects of Light-Sources, Photoperiod and Strain on Blood Physiological Variables of Broilers Grown to Heavy Weight”. International Journal of Poultry Science 19 (2): 86–96. https://doi.org/10.3923/ijps.2020.86.96.