CHEN, H.; YAN, F.F.; HU, J.Y.; WU, Yanan; TUCKER, C.M.; GREEN, A.R.; CHENG , H.W. Immune Response of Laying Hens Exposed to 30 ppm Ammonia for 25 Weeks. International Journal of Poultry Science, Pakistan, v. 16, n. 4, p. 139–146, 2017. DOI: 10.3923/ijps.2017.139.146. Disponível em: https://ijpsjournal.org/index.php/ijps/article/view/2325. Acesso em: 23 sep. 2025.