Pereira, A.A., Junqueira, O.M., Griep Junior, D.N., Lima Júnior, D.M. de, Sgavioli, S. e Morais, S. 2017. <b&gt;Phytase in diets with crude protein levels for commercial layers. Acta Scientiarum. Animal Sciences. 39, 2 (abr. 2017), 163-168. DOI:https://doi.org/10.4025/actascianimsci.v39i2.33097.