DENNIS, Rachel L.; CHENG, Heng W. A Comparison of Infrared and Hot Blade Beak Trimming in Laying Hens. International Journal of Poultry Science, Pakistan, v. 9, n. 8, p. 716–719, 2010. DOI: 10.3923/ijps.2010.716.719. Disponível em: https://ijpsjournal.org/index.php/ijps/article/view/1473. Acesso em: 22 sep. 2025.