CRAVENS, R. L.; BECHTOL, D. Clinical response of feeder calves under direct IBR and BVD virus challenge: A comparison of two vaccines and negative control. The Bovine Practitioner, [S. l.], v. 1991, n. 26, p. 154–158, 1991. DOI: 10.21423/bovine-vol1991no26p154-158. Disponível em: https://bovine-ojs-tamu.tdl.org/bovine/article/view/2354. Acesso em: 7 oct. 2024.