Marques, Heden Luiz, and Ricardo Alberto Cardellino. 1994. “Heritability, Repeatability and Environment Effects in Hereford Cattle. I - Weaning Weight and Conformation Score”. Pesquisa Agropecuaria Brasileira 29 (11):1795-1800. https://doi.org/10.1590/S1678-3921.pab1994.v29.4236.