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Keeping penguins in captivity: the penguin paradox

Keeping penguins in captivity: the penguin paradox Case histories from Cheyenne Mountain Zoo, supported by information from other zoos and animal importers, lend weight to the theory that premature penguin deaths are the result of three principal conditions, listed below. There also seems to be some relationship between these conditions, and a single specimen may be suffering from all three simultaneously. I Heat Exhaustion. This accounts for many deaths during transit, immediately after arrival at the zoo, or during extremely hot weather. The thick, dense feather layers which cover the penguin’s body provide poor conduction of external cold as well as internal heat and thus heat cannot be readily eliminated from the body. Subjecting the birds to an appreciable or extreme temperature increase will result in heat exhaustion and its accompanying syndrome of anoxaemia, hypoventilation, haemorrhage and dyspnea. The symptoms of laboured breathing with the mouth open, staggering gait and, finally, collapse, are characteristic. Autopsy also reveals dehydration. In one air shipment of penguins from Montevideo to Miami, Florida, over 14Emperor penguins Aptenodytes forsteri and King penguins A. patagonica died of heat exhaustion. Extreme temperature increases should be avoided if possible. Some relief may be obtained by providing shade, ice, proper ventilation, air conditioning, a http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png International Zoo Yearbook Wiley

Keeping penguins in captivity: the penguin paradox

DAVIS, D. G.
International Zoo Yearbook , Volume 7 (1) – Jan 1, 1967
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Publisher
Wiley
Copyright
Copyright © 1967 Wiley Subscription Services, Inc., A Wiley Company
ISSN
0074-9664
eISSN
1748-1090
DOI
10.1111/j.1748-1090.1967.tb00290.x
Publisher site
See Article on Publisher Site

Abstract

Case histories from Cheyenne Mountain Zoo, supported by information from other zoos and animal importers, lend weight to the theory that premature penguin deaths are the result of three principal conditions, listed below. There also seems to be some relationship between these conditions, and a single specimen may be suffering from all three simultaneously. I Heat Exhaustion. This accounts for many deaths during transit, immediately after arrival at the zoo, or during extremely hot weather. The thick, dense feather layers which cover the penguin’s body provide poor conduction of external cold as well as internal heat and thus heat cannot be readily eliminated from the body. Subjecting the birds to an appreciable or extreme temperature increase will result in heat exhaustion and its accompanying syndrome of anoxaemia, hypoventilation, haemorrhage and dyspnea. The symptoms of laboured breathing with the mouth open, staggering gait and, finally, collapse, are characteristic. Autopsy also reveals dehydration. In one air shipment of penguins from Montevideo to Miami, Florida, over 14Emperor penguins Aptenodytes forsteri and King penguins A. patagonica died of heat exhaustion. Extreme temperature increases should be avoided if possible. Some relief may be obtained by providing shade, ice, proper ventilation, air conditioning, a

Journal

International Zoo Yearbook – Wiley

Published: Jan 1, 1967

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