Epididymal sperm storage in Rickett's big-footed bat (Myotis ricketti)

• Autorzy: Wang Z. , Shi Q. X. , Wang Y. N. , Wang Y. L. , Zhang S. Y.
• Języki publikacji: EN

Abstrakty

EN

Spermatozoa were present in the cauda epididymidis of male Rickett's big-footed bat, Myotis ricketti, from late September to early April but absent from the testes from mid November until late August. Males thus store spermatozoa in the cauda epididymidis for 4.5–6.5 months of the year. Assessments of sperm motility, movement pattern and computer-assisted sperm analysis (CASA) were carried out on spermatozoa which had been stored for over 3.5 months in the cauda epididymidis. The motility of sperm stored for the same period of time and taken from a male which died over 9 h before assessment was 86%. Four kinds of culture media were screened for their suitability for future studies of sperm motility, and a low calcium minimal capacitation medium and a hamster fertilization medium were selected. Serum testosterone (T) concentration increased dramatically in September and began to fall in October, before returning to baseline for the remainder of winter. These results indicate that high levels of T are required for spermatogenesis and spermiogenesis but not for sperm storage.

Słowa kluczowe

EN

epididymal sperm; sperm storage; Rickett's big-footed bat; Myotis ricketti; bat; testosterone; sperm motility

• Wydawca: -
• Czasopismo: Acta Chiropterologica
• Rocznik: 2008
• Tom: 10
• Numer: 1
• Opis fizyczny: p.161-167,fig.,ref.

Twórcy

autor

Wang Z.

• Institute of Zoology, Chinese Academy of Science, Datun Road, Chaoyang, 100080 Beijing, China
• Graduate University of Chenese Academy of Sciences, 19 Yuquan Road, Chaoyang, 100049 Beijing, China

autor

Shi Q. X.

• Institute of Medicine, Zhejiang Academy of Medical Sciences, 182 Tianmushan Street, 310013 Hongzhou, China

autor

Wang Y. N.

• Institute of Zoology, Chinese Academy of Sciences, Datun Road, Chaoyang, 100080 Beijing, China

autor

Wang Y. L.

• Institute of Zoology, Chinese Academy of Sciences, Datun Road, Chaoyang, 100080 Beijing, China

autor

Zhang S. Y.

• School of Life Science, East China Normal University, 3663 Zhongshanbeilu, 200062 Shanghai, China

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