@article{MAKHILLRJANS20137227720,
    title = {Breed and Season Effects on the Claw Lesions of Dairy Cows in Ardebil, Iran},
    journal = {Research Journal of Animal Sciences},
    volume = {7},
    number = {2},
    pages = {18-22},
    year = {2013},
    issn = {1993-5269},
    doi = {rjnasci.2013.18.22},
    url = {https://makhillpublications.co/view-article.php?issn=1993-5269&doi=rjnasci.2013.18.22},
    author = {Mohsen,Taghi and},
    keywords = {Breed,cow,claw lesion,lameness,season},
    abstract = {Seasonal and breed effects on the prevalence and type of claw 
  lesions were investigated on 24854 cases of culled cows at central abattoir 
  in the vicinity of Ardebil in Iran during 12 consecutive months. After recording 
  information for each case, the feet were amputated and ground surface of the 
  claws were pared for more morphopathological study. The prevalence rate of claw 
  lesion among all cases was 24.2%. The claws lesion in local cows (24.4%) was 
  more than imported Holstein cows (22.5%) (p<0.05). Most lesions occurred 
  in the feet; the commonest were heel horn erosion (48.3%), white line disease 
  (25.1%), laminitis (12.2%), sole ulcer (10.3%) and septic traumatic pododermatitis 
  (4.1%). There was a significant effect of the frequent claw lesions in each 
  breed (p<0.05). Heel horn erosion was the commonest lesion in Holstein cows 
  (41.2%) and local cows (49.1%) and septic traumatic pododermatitis in Holstein 
  cows (4.7%) and laminitis in local cows (3.4%) were the lowest lesions. White 
  line disease was ranked second in Holstein cows (24.2%) and local cows (25.1%). 
  Significant differences were not seen between the season and claw lesions (p>0.05). 
  The results obtained from this study demonstrate that lameness is an important 
  problem in dairy herd in Ardebil. Poor management in hoof trimming, locomotion 
  monitoring and poor quality of floors were the common causes of claw lesions.}
    }