Coloring of egg yolks of laying hens fed with sorghum-based feed with addition of natural and synthetic pigments. Rev. Ciênc. Agrovet. [Internet]. 2021 Dec. 20 [cited 2026 Aug. 17];20(4):302-8. Available from: https://periodicos.udesc.br/index.php/agroveterinaria/article/view/20947