Fialho, E. T., Albino, L. F., Thiré, M. C., & Benetti, A. (2014). Effects of processing of feather meal on protein and energy values for pigs. Pesquisa Agropecuaria Brasileira, 19(2), 229–236. https://doi.org/10.1590/S1678-3921.pab1984.v19.15419