tailieunhanh - Báo cáo khoa học: "Is Snow a sufficient Source of Water for Horses kept Outdoors in Winter? A Case Report"

Tuyển tập các báo cáo nghiên cứu về bệnh thú y được đăng trên tạp chí y học General Psychiatry cung cấp cho các bạn kiến thức về ngành thú y đề tài: Is Snow a sufficient Source of Water for Horses kept Outdoors in Winter? A Case Report. | Acta vet. scand. 2005 46 19-22. Is Snow a sufficient Source of Water for Horses kept Outdoors in Winter A Case Report By C. M. Mejdell1 E. Simensen2 and K. E. B0e3 1National Centre for Veterinary Contract Research and Commercial Services Ltd 2Norwegian School of Veterinary Science Department of Production Animal Clinical Sciences and Norwegian University of Life Sciences Department of Animal and Aquacultural Sciences Mejdell CM Simensen E and Boe KE Is snow a sufficient source of water for horses kept outdoors in Winter A case report. Acta vet. scand. 2005 46 19-22. - Due to extreme weather conditions a flock of outwintered Icelandic horses had to manage for several days on snow as the source of free water. They were fed grass silage ad lib and any change in feed consumption was not observed. After nine days blood samples were taken and analysed for plasma osmolality they were subjected to a simple clinical examination and offered drinking water. Osmolality levels were within normal limits and mean value did not differ significantly from samples which previously were taken of the same individuals. The general condition of the horses was normal with no signs of clinical dehydration or disease. The horses showed very little interest for the offered drinking water. This suggests that in cold winter weather horses being fed grass silage and adjusted to eat snow can manage for several days with snow substituting liquid water without their physiology and welfare being challenged. Water source snow horse thirst osmolality welfare. Introduction The need for water is a basic motivating force for animals. Thus one of the five freedoms in evaluating animal welfare is the freedom from thirst hunger and malnutrition Brambell committee 1965 . Further the need for adequate water supply is emphasised in animal welfare regulations like the Norwegian Animal Protection Act. Water is lost from the body by urine and faeces evaporation from the respiratory tract and skin sweat and in .