abattoir study of bovine claw lesions in ardebil-iran

claw capsule lesions are the most common cause’s lameness in cows. during the entire year of 2005 a survey was undertaken by sir author on the prevalence of different claw lesions causing lameness on 30882 cases of culled cows and bulls at central abttoir in the vicinity of ardebil which was well equiped and with new constructions. after recording information for each case, the feet were amputated and solar parts of the claws were pared for more morphopathological studies. the claws lesion in cows (80/4%) was more than bulls (19/5 %) (p<0/05). a chi-squared test applied to the prevalence rate of claw lesion among all cases was 24/2 per cent. most lesions occurred in the feet, the commonest were slurry heel (51/6%), white line disease (24/2%), diffuse septic pododermatitis (10/4%), sole ulcer (9/3%) and aseptic traumatic pododermatitis (4/1%). the prevalence rate of claw lesion in the fore limb was higher than hind limb. slurry heel was the most important factor as the cause of deep sepsis of the digit. the results obtained from this study demonstrate that lameness in an important problem in cows and beef herb in ardebil. high prevalence of rate of lameness is due to poor management in hoof trimming and locomotion monitoring. on the other hand, poor quality of floors (shaps, hardness, friction and hygiene) was the main cause of claw lesions, which occurred most frequently in the solar surface.