Oba, Eunice, et al. “Evaluation of Chemical Characteristics in the Semen of Nelore Sires: Values of Sodium and Potassium”. Pesquisa Agropecuaria Brasileira, vol. 24, no. 1, Apr. 2014, pp. 31-35, https://doi.org/10.1590/S1678-3921.pab1989.v24.13745.