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Title: Risk factors associated with a skewed natal sex ratio in captive black rhinoceroses (Diceros bicornis) in the United States
Author(s): Dennis, P.M.; Rajala-Schultz, P.J.; Funk, J.A.; Blumer, E.S.; Miller, E.; Wittum, T.E.; Saville, W.J.A.
Year published: 2007
Journal: Journal of Zoo and Wildlife Medicine
Volume: 38 (4)
Pages: 533-539, tables 1-5
File: View PDF: 58,5 kb
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Captive
Captivity
Black Rhino
The skew toward males in the sex ratio of calves is considered to be a problem for the captive population of black rhinoceroses (Diceros bicornis) in North America. This study used a retrospective case-control design to determine whether there was a predisposition toward birth of male calves over...
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