Comparison of Endocrine Response to Stress Between Captive-Raised and Wild-Caught Bighorn Sheep
| Autor: | Thomas J. Keefe, Sarah Coburn, M. O. Salman, Jack C. Rhyan, Terry R. Spraker, Keith Aune, Matthew P McCollum, Lowell A. Miller |
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| Rok vydání: | 2010 |
| Předmět: |
medicine.medical_specialty
Ecology business.industry symbols.heraldic_supporter Captivity Biology Population density Endocrinology Animal science Blood chemistry Internal medicine medicine symbols General Earth and Planetary Sciences Livestock business Ecology Evolution Behavior and Systematics Ovis canadensis Glucocorticoid Feces Nature and Landscape Conservation General Environmental Science Hydrocortisone medicine.drug |
| Zdroj: | Journal of Wildlife Management. 74:532-538 |
| ISSN: | 1937-2817 0022-541X |
| DOI: | 10.2193/2008-152 |
| Popis: | Stress hormones in Rocky Mountain bighorn sheep (Ovis canadensis canadensis), produced in response to environmental changes, road development, or high population density, may impact their immune systems to a threshold level that predisposes them to periodic, large-scale mortality. We compared the stress response to a novel environmental situation and repeated handling between bighorn sheep born and raised in captivity (CR) and bighorn sheep born in the wild (WC) and brought into captivity. We measured plasma epinephrine, norepinephrine, cortisol, and fecal glucocorticoid metabolites (FGM). Three weeks after each group's arrival we used a one-time drop-net event to elicit an acute stress response, and we collected blood samples from each sheep over 35 minutes, as well as one fecal sample. We collected blood and fecal samples from both groups on 7 other occasions over the subsequent 6 months. We also collected fecal samples from the pen at approximately 24-hour intervals for 3 days following every ... |
| Databáze: | OpenAIRE |
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