A method for collection and analysis of walking motions of cattle using acceleration sensors and Detrended Fluctuation Analysis (DFA) was developed. A walking score was determined by calculation of the similarity between a model limp pattern and the patterns from individual cattle. Scores for normal cows were less than 0.1; those for most cows with foot diseases were greater than 0.2. These data suggest that this system can be used for the diagnosis of foot disease.
(Research Team for Production Diseases, TEL +81-29-838-7708)