Catto, J. B., & Afonso, E. (2001). Natality rate of cows and development of calves submitted to early weaning in the Pantanal region, Brazil. Pesquisa Agropecuaria Brasileira, 36(9), 1205–1211. https://doi.org/10.1590/S1678-3921.pab2001.v36.6242