EL-EMAM, H., U. ABOU-ISMAIL, I. EL-ARABY, M. FOUDA, and A. ATEYA. 2021. “Effect of Light Colour Temperature on Expression and Serum Profile of Selected Immune Markers in Layers”. Journal of the Hellenic Veterinary Medical Society 72 (2):2879-88. https://doi.org/10.12681/jhvms.27526.