論文

査読有り
2006年10月

Semen quality in a Giant Panda (Ailuropoda melanoleuca) in relation to estrus of a nearby resident female panda

THERIOGENOLOGY
  • T. Tsutsui
  • ,
  • T. Hori
  • ,
  • T. Nakashige
  • ,
  • E. Narushima
  • ,
  • T. Hara
  • ,
  • T. Akikawa
  • ,
  • N. Nose
  • ,
  • K. Saito
  • ,
  • S. Shichiri
  • ,
  • F. Hashizaki
  • ,
  • T. Komiya

66
6-7
開始ページ
1803
終了ページ
1806
記述言語
英語
掲載種別
研究論文(学術雑誌)
DOI
10.1016/j.theriogenology.2006.01.014
出版者・発行元
ELSEVIER SCIENCE INC

Semen quality was determined in a sexually mature male Giant Panda, electroejaculated 13 times during a 5-year interval, before, during and after estrus of a female Giant Panda housed nearby. Testis volume and plasma testosterone concentrations were also measured. Mean testis volumes were 1223.0 +/- 64.7(S.E.M.) cm(3) (before estrus), 1213.2 +/- 218.2 cm(3) (during estrus), and 1360.2 +/- 160.4 cm(3) (after estrus). Compared to before and during estrus in the female, testis volume decreased 70 days after estrus and there was no projectile ejaculation. The mean semen volume and sperm count were 2.2 +/- 0.7 mL and 8.3 +/- 3.1 x 10(8) before estrus, 2.4 +/- 0.9 mL and 5.7 +/- 0.9 x 10(8) during estrus, and 1.3 +/- 0.3 mL and 8.1 +/- 1.7 x 10(8) after estrus, respectively. The semen volume, sperm count, and testis volume markedly differed from 90 days before estrus until 66 days after estrus, whereas no marked differences in sperm motility, sperm viability, and proportion of morphologically abnormal spermatozoa were observed. Plasma testosterone concentrations were elevated both before and during estrus (0.62 +/- 0.23 ng/mL and 0.95 ng/mL), but decreased substantially after estrus (0.20 +/- 0.0 ng/mL). We inferred that spermatogenesis was active in this male panda from approximately 3 months before estrus to 2 months after estrus in the adjacent female. (c) 2006 Elsevier Inc. All rights reserved.

Web of Science ® 被引用回数 : 5

リンク情報
DOI
https://doi.org/10.1016/j.theriogenology.2006.01.014
PubMed
https://www.ncbi.nlm.nih.gov/pubmed/16494934
Scopus
https://www.scopus.com/record/display.uri?eid=2-s2.0-33748577334&origin=inward
Web of Science
https://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcAuth=JSTA_CEL&SrcApp=J_Gate_JST&DestLinkType=FullRecord&KeyUT=WOS:000240887300076&DestApp=WOS_CPL
URL
http://www.scopus.com/inward/record.url?partnerID=HzOxMe3b&scp=33748577334&origin=inward