Managing heel horn erosion — a common precursor to sole ulcers and significant dairy cow lameness.
Heel horn erosion causes progressive welfare impairment through its effects on hoof biomechanics and secondary lameness development. The erosion of heel horn weakens the structure, causes sinking of the pedal bone within the hoof, and increases pressure on the corium of the sole — directly increasing sole ulcer risk. The transition from HHE to sole ulcer represents a significant escalation in pain and welfare compromise.
The prevalence of HHE in dairy herds is often underestimated because mildly affected cows may not show obvious lameness. Locomotion scoring tends to identify only moderately to severely lame cows — subclinical HHE with early sole pathology may not be detected until significant damage has occurred.
Regular footbathing with copper sulphate or formalin reduces bacterial contamination of the heel and hoof wall. Regular trimming corrects overgrown heels and removes affected horn to improve weight distribution. Clean, dry standing areas reduce the wet conditions that promote bacterial growth in heel horn.