The objective of this study was to describe the incidence of papillomatous digital dermatitis in the US (including regional and herd size patterns) and to evaluate specific herd-level management factors associated with high incidence of digital dermatitis in US dairy herds. The study design was a population-based cross-sectional survey. US dairy operations with at least 30 cows in 20 states, re...

Studies performed on individual research farms have reported that dairy cattle developing sole hemorrhages or ulcers in peak to mid lactation spent more time standing during the weeks around calving. The aim of this prospective observational longitudinal study was evaluate whether relationship is evident commercial herds. A convenience sample 8 herds were visited every other week, and animals w...

In a cross-sectional study, performed between October 2002 and April 2003 on 55 Danishdairy herds with 6161 predominantly Holstein Friesian cows the prevalence of 9 hoof lesionswas determined.All test day yields (TDY) of kg Energy Corrected Milk (ECM) in the lactation of diagnosiswere recorded. For the purpose of including hoof lesions in a decision support model anattempt w...

The available bibliographic sources on the study of distal limbs diseases in cows were analyzed. causes and factors that contribute to limb pathology risk at milk production enterprises are emphasized. Lack active exercise, inadequate feeding rations, insufficient veterinary hygiene, high contamination premises low or level preventive medical care have an increase incidence animals up 40% herd....