Active immunization of cows with a Salmonella typhimurium mutant bacterin-toxoid and the passive transfer of anti-core-antigen antibodies in colostrum. Bov. pract. [Internet]. 1991 Sep. 1 [cited 2024 Nov. 22];1991(26):169-71. Available from: https://bovine-ojs-tamu.tdl.org/bovine/article/view/2358