Oba, E., Koihayagawa, A., Ramos, A. D. A., & Define, R. M. (2014). Evaluation of chemical characteristics in the semen of nelore sires: values of sodium and potassium. Pesquisa Agropecuaria Brasileira, 24(1), 31–35. https://doi.org/10.1590/S1678-3921.pab1989.v24.13745