Limit people's access to my cattle pens, feed mixing and storage area, and treatment area. Keep a record of visitors to my operation. Do not purchase, borrow, or use loaner bulls from other farms. Buy cattle from a Johne's certified free farm. Quarantine new arrivals for 21-30 days before allowing them contact with my cattle.
Quarantined area is designed to prevent cross contamination between cattle.
Replacement cattle are kept off pastures where manure has been spread for six months. Replacement cattle are kept separate from other cattle for at least six months. Replacement cattle have a separate source of water. Calving area is clean and disinfected. All calves are born from cows that have been tested clean of infectious diseases.