RANDEL, Paul F. Two hay: concentrate ratios in total mixed rations for cows at different stages of lactation. The Journal of Agriculture of the University of Puerto Rico, [S. l.], v. 79, n. 1-2, p. 29–39, 1995. DOI: 10.46429/jaupr.v79i1-2.4296. Disponível em: https://revistas.upr.edu/index.php/jaupr/article/view/4296. Acesso em: 16 apr. 2024.