Enhanced freezability of goat spermatozoa collected into tubes containing extender supplemented with bovine serum albumin (BSA)

Hideaki Yamashiro, Haifeng Wang, Yasuhisa Yamashita, Kanako Kumamoto, Takato Terada

研究成果: Article

17 引用 (Scopus)

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The purpose of this study was to investigate the effects of semen collection into tubes containing extender supplemented with BSA on the cryosurvival of goat spermatozoa. Semen was collected from two goats into empty tubes or tubes containing 10 ml extender supplemented with 0, 0.1, 1, or 5% BSA, and the washed spermatozoa were frozen as pellets in egg yolk-trehalose extender with the addition of 0.04% SDS and 4% glycerol. Sperm motion parameters were evaluated after post-thawing and during a thermal resistance test. The acrosome status of frozen-thawed spermatozoa was also observed using FITC-PNA staining. In frozen semen that was collected into tubes containing extender supplemented with 5% BSA, the post-thawed spermatozoa exhibited a significant improvement in motion parameters and maintained high motility throughout incubation and acrosome integrity, as compared with semen collected into tubes containing extender supplemented with lower concentrations of BSA. In conclusion, semen collection into tubes with a large volume of extender containing high concentrations of BSA dramatically improves the motility and acrosome integrity of frozen-thawed spermatozoa. This suggests that the in vitro functional freezability of spermatozoa is abruptly modified by reducing contact with seminal plasma and by flash contact with BSA at ejaculation.

元の言語English
ページ(範囲)407-414
ページ数8
ジャーナルJournal of Reproduction and Development
52
発行部数3
DOI
出版物ステータスPublished - 07-07-2006
外部発表Yes

All Science Journal Classification (ASJC) codes

  • Animal Science and Zoology

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