DENNIS, Rachel L.; CHENG , Heng W. Effects of Beak Trimming on Pecking Force. International Journal of Poultry Science, Pakistan, v. 9, n. 9, p. 863–866, 2010. DOI: 10.3923/ijps.2010.863.866. Disponível em: https://ijpsjournal.org/index.php/ijps/article/view/1499. Acesso em: 22 sep. 2025.