Heel Erosions in Dariy Cattle

Heel erosions, or under-run heels, begin at the bulb of the heel. This condition begins as pits on the surface of the bulbs, which develop into parallel grooves. These grooves become filled with material, which leads to bacterial growth. The horn can separate at the grooves to form a flap. Anew sole forms underneath and material becomes packed between the layers. This condition is typically present in dairy cattle confined to wet, dirty lots. This condition shifts the weight toward the heels, exposing them to erosion. This affliction generally occurs in the hind claws.

Treatment begins with the removal of all of the unsound horn. After cleaning, the exposed area should be treated with a disinfectant. The cow should be confined for several days until the freshly exposed sole hardens. In more severe cases where sensitive tissue has been exposed, it may be necessary to apply an astringent medication and a protective bandage to the affected area in addition to confinement. For prevention, feet should be trimmed on a bi-yearly schedule and excessive exposure to wet environments should be avoided. In addition, a dry footbath consisting of 80 percent hydrated lime, 15 percent copper sulfate, and 5 percent flowers of sulfur can be used to help toughen the soles and prevent the spread of infection.