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1 October 1981 BETA-ENDORPHIN LEVELS IN BLOOD FROM SELECTED ALASKAN MAMMALS
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Abstract

Blood samples were analyzed for beta-endorphin from 43 non-torpid black bear (Ursus americanus), 8 torpid black bear, 3 non-torpid brown bear (Ursus arctos), 14 moose (Alces alces), 6 mountain goats (Oreamnus americanus) and 30 Steller sea lions (Eumetopias jubatus). Beta-endorphin levels were detected in all species sampled and there were no significant differences in levels among non-torpid black bear, brown bear and sea lions. Also, no differences were detected between moose and mountain goats, but all other comparisons were significantly different (P<0.001). Torpid black bear had higher levels than all other groups. Moose and mountain goats had the lowest levels. The possibility of beta-endorphin influencing behavior and physiology of mammals is discussed.

ALBERT W. FRANZMANN, ARTHUR FLYNN, CHARLES C. SCHWARTZ, DONALD G. CALKINS, and LYMAN NICHOLS "BETA-ENDORPHIN LEVELS IN BLOOD FROM SELECTED ALASKAN MAMMALS," Journal of Wildlife Diseases 17(4), 593-596, (1 October 1981). https://doi.org/10.7589/0090-3558-17.4.593
Received: 4 November 1980; Published: 1 October 1981
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