THE EFFECTS OF HIBERNATION AND CAPTIVITY ON GLUCOSE METABOLISM AND THYROID HORMONES IN AMERICAN BLACK BEAR ( URSUS AMERICANUS )
โ Scribed by McCain, Stephanie; Ramsay, Ed; Kirk, Claudia
- Book ID
- 120996518
- Publisher
- American Association of Zoo Veterinarians
- Year
- 2013
- Tongue
- English
- Weight
- 480 KB
- Volume
- 44
- Category
- Article
- ISSN
- 1042-7260
No coin nor oath required. For personal study only.
๐ SIMILAR VOLUMES
The aim of this study was to determine whether American Black Bears (Ursus americanus) can experience a pseudopregnancy of the same duration as pregnancy. To do this, we treated three nonmated, captive female bears with human chorionic gonadotropin (hCG) during one breeding season, and saline during
Male black bears undergo seasonal changes in testicular activity. The testes are fully functional from May through July, regress from July through December, and recrudesce from January until May. The mechanisms responsible for the initiation of testicular recrudescence in the bear are unknown. The o