The hind foot on this dairy cow is being treated for a fairly common condition known as hairy
attack or periople ulcer (top photo). Among other things, it is also referred to as strawberry warts. It is a very painful condition that often causes cows to stand on their tip toes The condition begins, or the first lesion that appears, is digital dermatitis derma-
which appears just above the division of the toes at the bottom of the pastern.
Hoof technician William Klok of Picture Butte, Alta. has already removed all the loose horn on the corium (quick). We can’t see the hairy attack lesion itself because it is on the top, front wall of the hoof.
Hairy attack happens when a case of digital dermatitis turns into a claw disorder, he explains. The dermatitis starts on top of the cornonary band right between the two toes and grows downward, through the tissues and then under the hoof wall, causing the wall and the corium (quick) to separate.
After removing the loose horn he then applied an artificial hoof (hoof block/ cow boot) on the uninfected claw (middle photo). This heavy vinyl boot material is attached to the hoof with a two-part epoxy glue and is intended to remain in place for a few weeks until it wears off or falls off.
The idea of this raised artificial hoof is to shift the weight from the damaged claw to the healthier claw as the cow walks. The technique is the same philosophy as a person using a crutch when they have a broken leg. Taking the pressure off gives the damaged tissues, ligaments,
ments, horn material mate
a rest period to heal. Once the shoe is in place, he
applies a topical application of a paste product called Hof-sol, which is a blend of copper, zinc, alcohol, and aloe vera mix, to kill the dermatitis and also helps to stimulate the healing process. The treated area is wrapped with a bandage (bottom photo) and the cow returns to the barn, hopefully with improved foot comfort.