Changes in hind claw shape and development of subclinical sole lesions after foot trimming in dairy cattle housed in a cubicle system.

摘要

47 cattle (11 heifers, 11 first-calf heifers, 13 second-calf cows and 12 mature cows) housed in a cubicle system from one week after calving, were examined for changes in the hind claws monthly from 2 months before to 3 months after calving. All thefeet were trimmed at 2 months before calving. The abaxial wall of the outer claw increased in length and the weight bearing surface of the inner claw decreased in area significantly at 2 months after calving, resulting in a distinct difference between the inner and the outer claw shape. A high prevalence of the white line defect and heel erosion was detected at calving and persisted up to 3 months after calving. Sole haemorrhage was most prevalent 2 to 3 months after calving, being significantly higherat the outer claw. The occurrence of foot diseases seemed to be due to the subclinical sole lesions and lack of hoof trimming after calving.