OKONKWO, J.C. Effects of Breed and Storage Duration on the Beta-Carotene Content of Egg Yolk. Pakistan Journal of Nutrition, [S. l.], v. 8, n. 10, p. 1629–1630, 2009. DOI: 10.3923/pjn.2009.1629.1630. Disponível em: https://pjnonline.org/pjn/article/view/1054. Acesso em: 18 jul. 2025.