The effect of lighting color and intensity on cortisol and melatonin hormones level and some productivity indicators in broiler (Ross). Journal of Hama University , [S. l.], v. 8, n. 2, 2026. Disponível em: https://journal.hama-univ.edu.sy/huj/article/view/2655. Acesso em: 6 jun. 2026.