ASSAN, N. . Covariance components and genetic parameter estimation for 18 month weight in Nguni and Tuli cattle of Zimbabwe. Agricultural Advances, [S. l.], v. 2, n. 3, p. 115-125, 2013. DisponĂ­vel em: https://sjournals.com/index.php/aa/article/view/758. Acesso em: 19 aug. 2022.