de Souza, C.G., Gonzaga Neto, S. , Henriques, L.T. , Araújo, G.G.L. de ., Seki Dias, L.T. e Muniz, A.J.C. 2022. Microbial protein synthesis and nitrogen balance in crossbred heifers fed with two tannins sources. Scientia Agraria Paranaensis. 21, 1 (mar. 2022), 81–89. DOI:https://doi.org/10.18188/sap.v21i1.29320.