The Effect of Blood Sampling on Plasma Cortisol in Female Reindeer (Rangifer tarandus tarandus L) |
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| Authors: | JE Sire A Blom
V Sjaastad E Ropstad TA Bergdahl Nilsen
Pedersen M Forsberg |
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| Institution: | 121.Department of Reproduction and Forensic Medicine, Norwegian College of Veterinary Medicine, P.O. Box 8146, Dep., N-0033 Oslo, Norway ;221.Department of Biochemistry, Physiology and Animal nutrition, Norwegian College of Veterinary Medicine, Norway ;321.Department of Animal Science, Agricultural University of Norway, Norway ;421.Faculty of Veterinary Medicine, Department of Clinical Chemistry, Swedish University of Agricultural Sciences, Norway |
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| Abstract: | A major response of the body to stress is the secretion of adrenocorticotrophic hormone (ACTH) by the adenohypophysis resulting in increased blood Cortisol levels. Corticotropin releasing factor (CRF) controls the release of ACTH, mediating a direct effect at the level of the pituitary (Guillame et al. 1992). An animal''s perception of a stressful event and the resulting increase in Cortisol production can be influenced by previous experience, season, time of day, and the animal''s sex, age, and condition (Dantzer & Mormède 1983, Moberg 1985). |
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