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1 Department of Veterinary Anatomy and Physiology, 6700 AA Wageningen, The Netherlands
2 Institute of Agricultural and Environmental Engineering, 6700 AA Wageningen, The Netherlands
3 Department of Farm Animal Health, University of Technology, 2600 GA Delft, The Netherlands
4 Department of Equine Sciences, University of Technology, 2600 GA Delft, The Netherlands
5 Faculty of Civil Engineering and Geosciences, University of Technology, 2600 GA Delft, The Netherlands
The distribution pattern of pressure over the bovine claw was investigated to test the hypothesis that the ground reaction force is unevenly distributed and makes some regions of the claw more prone to overloading and injury than others. In eight recently trimmed Holstein Friesian cows, the distribution of vertical pressure was measured during square standing with a spatial resolution of 2.6 sensors/cm2 and a temporal resolution of 313 measurements/s. In each animal, the localization of maximum pressure per foot and per claw was determined during five trials. In the front limb, maximum pressures were normally found on the medial claw; in the hindlimb they were located on the lateral claw. In both claws, the highest pressures were found on the sole of the foot and not on the wall. In the front limbs, maximum pressures were located in the posterior portion of the sole; in the hind limb in the anterior portion. There was no difference in the location of the maximum pressure between the medial and lateral claw in either limb. The regions in which these maximum pressures occur are known to be relatively susceptible to injuries. This could indicate a causal relation between the location of pressure concentrations and claw diseases found in clinical observations.
Key Words: cattle • lameness • sole ulcer • floor
Submitted on November 14, 2001
Accepted on January 28, 2002
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