Biosecurity Risk Assessment: Johne's Disease

A checklist to determine the risk of various factors for Johne's Disease in dairy herds.
Biosecurity Risk Assessment: Johne's Disease - Articles
Biosecurity Risk Assessment - Johne's Disease
Select the most appropriate box -->Low RiskModerate RiskHigh Risk
Maternity PenSingle use pen only for maternity cases, cleaned between cows.Maternity may be used for other cows, cleaned prior to maternity use.Sick and maternity cows share pen, not always cleaned between cows.
Pre-fresh PenTest negative animals segregated from positive animals.Animals mixed together, but segregated into clean and "positive" maternity pens.Test negative animals mixed with test positive or unknown animals.
ColostrumUdder cleaned and calf fed with clean nipple bottle, from negative animals.Udder cleaned and calf fed with clean nipple bottle, from dam or colostrum from cow of unknown status.Calf allowed to suckle dam, or fed pooled colostrum.
Calf removed from maternity penCalf removed from pen and placed in clean hutch as soon as it is seen.Calf removed from pen and placed in hutch as soon as chores are done.Calf allowed to stay in maternity pen for several hours.
Calf RearingCalves are raised in isolation from adult cows for 1st year.Calves are raised in separate facilities but on the same farm.Calves are raised on the same farm and in the same facility.
Heifer Feed ManagementHeifers are not given feed refusals from adult animals.Heifers over 1 year of age may be given adult feed refusals.Part of the heifer diet is refusals from adult cattle.
Purchased animalsPurchase animals from herd with 5 yr + negative history.Purchased animals are tested and older cows are negative.Animals are purchased without tests or history.
Feed and manure hauling equipmentSeparate equipment is used to move feed and haul manure.Separate buckets may be used and machinery is thoroughly washed.Same bucket is used to move feed and move manure, bucket is rinsed.

Authors

Mastitis and Milk Quality Milking Equipment Performance Bovine Hoof Health On-farm Food Safety Epidemiology Dairy

More by Ernest Hovingh, DVM, PhD 

David R. Wolfgang, VMD, MPH DABVP-Dairy