YAKUBU, A.; OGAH, D.M.; BARDE, R.E. Productivity and Egg Quality Characteristics of Free Range Naked Neck and Normal Feathered Nigerian Indigenous Chickens. International Journal of Poultry Science, Pakistan, v. 7, n. 6, p. 579–585, 2008. DOI: 10.3923/ijps.2008.579.585. Disponível em: https://ijpsjournal.org/index.php/ijps/article/view/997. Acesso em: 22 sep. 2025.