REDDY, I.J.; KIRAN, G. Ravi; MONDAL, S.K.; ANANDAN, S. Immunization Against Vasoactive Intestinal Peptide and its Effects on Prolactin, Steroid, Luteinizing Hormone and Egg Production During Mid Laying Cycle in Punjab Brown (PB3 ) Birds. International Journal of Poultry Science, Pakistan, v. 7, n. 11, p. 1100–1104, 2008. DOI: 10.3923/ijps.2008.1100.1104. Disponível em: https://ijpsjournal.org/index.php/ijps/article/view/1084. Acesso em: 22 sep. 2025.