tailieunhanh - Báo cáo khoa học: "Wet Belly in Reindeer (Rangifer tarandus tarandus) in Relation to Body Condition, Body Temperature and Blood Constituents"

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: Wet Belly in Reindeer (Rangifer tarandus tarandus) in Relation to Body Condition, Body Temperature and Blood Constituents. | Acta vet. scand. 2002 43 85-97. Wet Belly in Reindeer Rangifer tarandus tarandus in Relation to Body Condition Body Temperature and Blood Constituents By B. Ằhman1 A. Nilsson1 E. Eloranta2 and K. Olsson3 Department of Animal Genetics Reindeer Husbandry Unit Swedish University of Agricultural Sciences Uppsala Sweden 2Department of Physiology University of Oulu Finland and 3Department of Animal Physiology Swedish University of Agricultural Sciences Uppsala Sweden. Ảhman B Nilsson A Eloranta E Olsson K Wet belly in reindeer Rangifer taran-dus tarandus in relation to body condition body temperature and blood constituents. Acta vet. scand. 2002 43 85-97. - Wet belly when the reindeer becomes wet over the lower parts of the thorax and abdomen sometimes occurs in reindeer during feeding. In a feeding experiment 11 out of 69 reindeer were affected by wet belly. The problem was first observed in 7 animals during a period of restricted feed intake. When the animals were then fed standard rations 3 additional animals fed only silage and 1 fed pellets and silage became wet. Four animals died and 1 had to be euthanised. To investigate why reindeer developed wet belly we compared data from healthy reindeer and reindeer affected by wet belly. Urea plasma protein glucose insulin and cortisol were affected by restricted feed intake or by diet but did not generally differ between healthy reindeer and those with wet belly. The wet animals had low body temperature and the deaths occurred during a period of especially cold weather. Animals that died were emaciated and showed different signs of infections and stress. In a second experiment with 20 reindeer the feeding procedure of the most affected group in the first experiment was repeated but none of the reindeer showed any signs of wet belly. The study shows that wet belly is not induced by any specific diet and may affect also lichen-fed reindeer. The fluid making the fur wet was proven to be of internal origin. Mortality was caused