All heifers can benefit from an evaluation for claw-horn overgrowth and early hoof lesions prior to freshening, says Jan Shearer, veterinarian at the University of Florida. However, heifers with normal claw size and shape should not be trimmed. Doing so could put heifers on concrete at risk of developing claw problems associated with thin soles. Evaluate all heifers, but only trim those that exhibit these problems:
Early hoof lesions.
Signs of lameness.