GALAL, A.; AHMED, A.M.H.; ALI, W.A.H.; EL-SANHOURY, M.H.; AHMED, Hedia E. Residual Feed Intake and its Effect on Cell-Mediated Immunity in Laying Hens Given Different Propolis Levels. International Journal of Poultry Science, Pakistan, v. 7, n. 11, p. 1105–1111, 2008. DOI: 10.3923/ijps.2008.1105.1111. Disponível em: https://ijpsjournal.org/index.php/ijps/article/view/1085. Acesso em: 22 sep. 2025.