de Almeida, I. L., de Brum, P. A. R., Tullio, R. R., Aroeira, J. A. D. C., & Pott, E. B. (1994). Cattle reproductive performance in the Paiaguas subregion of the Brazilian Pantanal. 4. Effect of calf weaning age on breeding cows. Pesquisa Agropecuaria Brasileira, 29(3), 461–465. https://doi.org/10.1590/S1678-3921.pab1994.v29.4076