RAYAN, G.N.; GALAL, A.; FATHI, M.M.; EL-ATTAR, A.H. Impact of Layer Breeder Flock Age and Strain on Mechanical and Ultrastructural Properties of Eggshell in Chicken. International Journal of Poultry Science, Pakistan, v. 9, n. 2, p. 139–147, 2010. DOI: 10.3923/ijps.2010.139.147. Disponível em: https://ijpsjournal.org/index.php/ijps/article/view/1365. Acesso em: 22 sep. 2025.