HOUSEWRIGHT, B. C.; SKIPPER, R.; CRENSHAW, D. B.; BAGLEY, C. P. Effects of Serum Levels of Copper and Zinc on Antibody Titers of Two Breeds of Stocker Calves Injected with Leptospirosis sp. Vaccine and Drenched with an Organic Mineral Supplement. Texas Journal of Agriculture and Natural Resources, [S. l.], v. 23, p. 90–96, 2016. Disponível em: https://txjanr.agintexas.org/index.php/txjanr/article/view/67. Acesso em: 11 dec. 2024.