Comparison between infrared and hot-blade beak trimming methods in white and brown pullets: performance, organ and bone development oleh P.C. Guarnieri, H. Pagnussatt, E. Aniecevski, A. Dal Santo, F. Leite, F.D.A. Valentini, C.S. Facchi, G. Zaccaron, G.E. Bosetti, G. Rossatto, M.M. Boiago, F.C. Tavernari, S.M.B. Artoni, T.G. Petrolli