Fichtner, Suzete Silveira, Eduardo Cavalheiro Jardim, and Jacy Luiz da Costa. 2007. “AGE AT FIRST CALVING OF CATTLE POLLED TABAPUÃ AND POLLED NELORE”. Pesquisa Agropecuária Tropical [Agricultural Research in the Tropics] 18 (1). Goiânia:121-25. https://revistas.ufg.br/pat/article/view/2557.