Breeding Cattle Moving Within Colorado

1. Negative Official Trichomonas foetus PCR Test (individual or pooled) required for bulls 12 months of age or older under the following conditions:
   1. Within 60 days prior to lease or change of ownership unless the animal is going direct to slaughter. 
   2. Prior to commingling in grazing associations or on public lands within Colorado.
   3. Bulls consigned to a livestock auction market must be tested within 60 days prior to the sale if being sold for breeding purposes
      1. Bulls not tested prior to sale must:
         1. Be tested prior to release from the market;
         2. Be sold directly to slaughter; or 
         3. Be sold to an Approved Feedlot.
   4. Trichomonas foetus Test exemptions:
      1. Bulls used for exhibition (without sale) that have no sexual contact with females;  
      2. Bulls consigned directly to slaughter; or
      3. Bulls consigned to an Approved Feedlot.
2. Events, including exhibitions, rodeos, and sales, may have requirements for entry. Contact the event organizer.
3. Brand Inspection may be required. Please contact the Brands Office at (303) 869-9160 for brand requirements.

Last Updated 5/24/24