NWAKALOR, L. N.; BRINKS, J. S.; RICHARDSON, G. V. SELECTION IN HEREFORD CATTLE I. SELECTION INTENSITY, GENERATION INTERVAL AND INDEXES IN RETROSPECT . Nigerian Journal of Animal Production, [S. l.], v. 8, n. 2, p. 97–111, 2021. DOI: 10.51791/njap.v8i2.1929. Disponível em: https://mail.njap.org.ng/index.php/njap/article/view/1929. Acesso em: 23 sep. 2025.