Mineral status of Boran zebu cattle in semi-arid rangelands of Southern Ethiopia and the effects of supplementary phosphorus and copper. Tropical Agriculture, [S. l.], v. 68, n. 4, 1991. Disponível em: https://journals.sta.uwi.edu/ojs/index.php/ta/article/view/1715. Acesso em: 15 may. 2025.