کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
2453588 1554234 2006 12 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Effects of frequency and duration of outdoor exercise on the prevalence of hock lesions in tied Swiss dairy cows
موضوعات مرتبط
علوم زیستی و بیوفناوری علوم کشاورزی و بیولوژیک علوم دامی و جانورشناسی
پیش نمایش صفحه اول مقاله
Effects of frequency and duration of outdoor exercise on the prevalence of hock lesions in tied Swiss dairy cows
چکیده انگلیسی

Injuries around the tarsal joint are common in dairy cows kept in tie stalls. This study investigated the influence of the frequency and duration of outdoor exercise on the prevalence of hock lesions in tied Swiss dairy cows. Over a 1-year period (from January to December), cows on 66 farms were examined a total of six times (once every 2 months) for the number and severity of hock lesions (hairless patches, scabs and open wounds, swellings). The prevalence of scabs and wounds (mean 2.1 scabs per cow and farm, range 0.3–4.1) was negatively associated with the duration of outdoor exercise, and positively associated with its frequency. It was also significantly affected by the time of visit and the type of bedding (straw being better than other materials). With increasing length of the lying area, the prevalence of scabs and wounds decreased. Based on the interpretation of the final model, it is suggested that a minimum of 50 h spent outdoors over a 4-week period is necessary to have a marked result on the prevalence of hock lesions.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Preventive Veterinary Medicine - Volume 74, Issues 2–3, 17 May 2006, Pages 142–153
نویسندگان
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