2009年4月17日
Change in morphology of spermatozoa from dismount semen during the breeding season in Thoroughbred stallions in Japan
Journal of Equine Science
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- ,
- ,
- ,
- 巻
- 20
- 号
- 1
- 開始ページ
- 1
- 終了ページ
- 5
- 記述言語
- 英語
- 掲載種別
- 研究論文(学術雑誌)
- DOI
- 10.1294/jes.20.1
To clarify the physiological changes of sperm morphology in active Thoroughbred stallions during the breeding season, we examined the dismount semen collected from the penile urethra immediately after service. The spermatozoa were analyzed for relationships between the morphology and the stallion's age or the number of services. Seasonal variation was apparent in the rate of the sperm tail abnormalities, spermatozoa with cytoplasmic droplets, appearance of medusa cells, and sperm head length. Area and width of the sperm head correlated negatively with age (P<
0.05). The rate of appearance of medusa cells and the length of the sperm head were positively related to the number of services (P<
0.05), and the aspect ratio was negatively related (P<
0.01).
0.05). The rate of appearance of medusa cells and the length of the sperm head were positively related to the number of services (P<
0.05), and the aspect ratio was negatively related (P<
0.01).
- ID情報
-
- DOI : 10.1294/jes.20.1
- ISSN : 1340-3516
- ISSN : 1347-7501
- PubMed ID : 24833962
- SCOPUS ID : 65549133454