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OCV... Official Calfhood Vaccination for Brucellosis 
 

  • Vaccinated as 4 to 10 month old heifers with Brucella Abortus Strain 19...
    • Calfhood vaccination must be administered by a federally accredited veterinarian. Most large animal veterinarians are federally accredited. 
    • Vaccination is necessary for heifers being shipped into some states; therefore, many sales require that all heifers sold be calfhood vaccinated so as not to restrict the potential market.
    • Official calfhood vaccinates are marked in the right ear with an official orange ear tag and a special tattoo, denoting the quarter and year of vaccination.
    • The decision to have heifer calves vaccinated for brucellosis should be based on the advice of the herd's veterinarian and depends on the marketing plan of the herd.

 
 
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