Active immunization of cows with a Salmonella typhimurium mutant bacterin-toxoid and the passive transfer of anti-core-antigen antibodies in colostrum. The Bovine Practitioner, [S. l.], v. 1991, n. 26, p. 169–171, 1991. DOI: 10.21423/bovine-vol1991no26p169-171. Disponível em: https://bovine-ojs-tamu.tdl.org/bovine/article/view/2358. Acesso em: 22 nov. 2024.