Several dozen producers recently attended the second of three public meetings regarding Montana's Designated Surveillance Area (DSA), hosted by the Montana Department of Livestock (MDOL).

The proposed administrative rule is being modified in Montana to require mandatory calfhood brucellosis vaccinations for sexually intact female cattle or bison.

Female cattle or domestic bison that are not Official Calfhood Vaccinates (OCV) eligible may become Official Adult Vaccinates (OAV) following a negative brucellosis test. An approved brucella vaccine is a brucella product approved by and produced under license of USDA for injection into cattle or bison to enhance their immune response to brucella.

To read the entire article, link here.