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The effects of frequent electroejaculation on the semen characteristics of a captive Siberian tiger (Panthera tigris altaica)

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Title: The effects of frequent electroejaculation on the semen characteristics of a captive Siberian tiger (Panthera tigris altaica)
Authors: FUKUI, Daisuke Browse this author
NAGANO, Masashi Browse this author →KAKEN DB
NAKAMURA, Ryohei Browse this author
BANDO, Gen Browse this author
NAKATA, Shinichi Browse this author
KOSUGE, Masao Browse this author
SAKAMOTO, Hideyuki Browse this author
MATSUI, Motozumi Browse this author
YANAGAWA, Yojiro Browse this author
TAKAHASHI, Yoshiyuki Browse this author →KAKEN DB
Keywords: Frequent electroejaculation
Semen quality
Tiger
Issue Date: 2013
Publisher: 日本繁殖生物学会
Journal Title: The Journal of Reproduction and Development
Volume: 59
Issue: 5
Start Page: 491
End Page: 495
Publisher DOI: 10.1262/jrd.2013-016
Abstract: Artificial insemination (AI) can help to avoid inbreeding and genetic degeneration for sustaining genetically healthy populations of endangered species in captivity. Collection of a sufficient quantity of viable sperm is an essential first step in the AI process. In the present study, we examined the effects of frequent electroejaculation on semen characteristics in a Siberian tiger. We collected semen in all 17 trials during 6 breeding seasons (6 years). The mean number of sperm and the percentage of motile sperm were 294.3 ± 250.2 × 106/ejaculate and 82.4 ± 11.4%, respectively. The number of motile sperm tended to increase during frequent electroejaculation in the same breeding season. Semen collection by electroejaculation can be performed effectively up to the fourth sequential ejaculate, which contained the most sperm in the study. In conclusion, frequent collection of sperm by electroejaculation from tigers may be effective for collection of a large number of motile sperm.
Type: article (author version)
URI: http://hdl.handle.net/2115/53420
Appears in Collections:獣医学院・獣医学研究院 (Graduate School of Veterinary Medicine / Faculty of Veterinary Medicine) > 雑誌発表論文等 (Peer-reviewed Journal Articles, etc)

Submitter: 永野 昌志

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