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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->2006 Vol.25 No.1

Comparative Studies on Temporal Estrous Patterns in Captive Female Alpine Musk Deer
Author of the article:MENG Xiu-xiang1,2, YANG Qi-sen2, FENG Zuo-jian2, JIANG Ying-wen3, SHI Ze-mei3
Author's Workplace:(1. College of Life and Environmental Sciences, Central University of Nationalities, Beijing 100081; 2. Institute of Zoology, Chinese Academy of Sciences; 3.Xinglongshan National Nature Reserve)
Key Words:Alpine musk deer (Moschus sifanicus); estrus; temporal pattern
Abstract:This study was conducted between 1996 and 2000 in Xinglongshan National Nature Reserve, Gansu Province. The data about rutting habits of captive Alpine musk deer (Moschus sifanicus) in the Breeding Center of Alpine Musk Deer (BCAMD) located in the reserve were collected. The temporal rutting patterns were examined to determine the timing and synchrony of estrus. From 1997 to 2000, the temporal estrous patterns remained relatively constant across the years but in 1996, the animals entered estrus later and the estrous season was longer than in other years possibly due to the animal being transported in that year. In total, the estrus period of captive musk deer in BCAMD occurred seasonally during 3 months of the year, but 66% of mating occurred in a month from 21 Nov. to 21 Dec. The total estrous season (when 75% of mating occurred) was 36 days. When the possible factors affecting the temporal estrous patterns were analyzed, it appeared that the rutting of females was influenced by both social and seasonal factors. There significant differences among the temporal estrous patterns of animals in different rows of enclosures, probably because of keeper effects and social interactions among females within a row of enclosures. Female age could affect timing of estrus: females older than 5.5 years entered estrus earlier than younger age-classes. The reproductive success in the previous year was not related to rutting patterns. The temporal estrous patterns were not significantly different between the captive females of the wild-caught deer and their first-generation offspring. Females with more estrous cycles were less likely to enter estrus earlier than those with one or two cycles.
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