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Issue:ISSN 1000-7083
          CN 51-1193/Q
Director:Sichuan Association for Science and Technology
Sponsored by:Sichuan Society of Zoologists; Chengdu Giant Panda Breeding Research Foundation; Sichuan Association of Wildlife Conservation; Sichuan University
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Your Position :Home->Past Journals Catalog->2003 Vol.22 No.1

Fall Estrus and Mating in a Giant Panda
Author of the article:LAN Jing-chao1, Lü Wen-qi2, ZHANG Zhi-he1, LI Guang-han1, WANG Cheng-dong1, YU Jian-qiu1, WANG Ji-sh
Author's Workplace:(1.Chengdu Research Base of Giant Panda Breeding, Chengdu 610081, China; 2.Chengdu Zoo, Chengdu 610081, China; 3.Adventure World in Shirahama, Wakayama, Japan)
Key Words:giant panda; estrus in fall; natural mating; estrus behavior
Abstract:In captivity, female giant pandas typically experience estrus and mate in the spring season. Therefore, there aren’t any report of captivity giant pandas exhibiting estrus and mating in the fall and subsequently giving birth. In 2001, a female giant panda housed at Wakayama in Japan did not exhibit estrus behavior in the spring possibly because of changes in her environment or diet. However, this female displayed strong estrus behavior on mid-September and mated with the male housed in Japan. The mate exhibited appropriate behavioral changes in response to the female’s behavior. On December 17, 2001, this female gave birth to a healthy cub. This paper discussed some analysis of the possible explanations for fall estrus.
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