2004年9月
Testicular compensatory hypertrophy related to hemicastration in prepubertal dogs
JOURNAL OF VETERINARY MEDICAL SCIENCE
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- 巻
- 66
- 号
- 9
- 開始ページ
- 1021
- 終了ページ
- 1025
- 記述言語
- 英語
- 掲載種別
- 研究論文(学術雑誌)
- DOI
- 10.1292/jvms.66.1021
- 出版者・発行元
- JAPAN SOC VET SCI
Several studies have reported that the plasma testosterone (T) level and semen volume are compensated after hemicastration (HEC) in adult dogs, but that the sperm count is not. Nevertheless, the effects of HEC in prepubertal dogs have not been reported. In this study, HEC was performed at 16 weeks of age in 8 male beagles, and the function of the residual testis was investigated until 48 weeks of age. The testis volume was consistently higher in the HEC group than the control (CON) group. After 40 weeks of age, compensatory hypertrophy was observed, with a mean testis volume of 125% of that in the CON group (p<0.05). Furthermore, the semen volume and plasma testosterone (T) level were similar to those in the CON group, suggesting functional compensation, but the sperm count was not compensated. These results showed that the testis volume, semen volume, and plasma T level were compensated after HEC in prepubertal dogs, but the spermatogenic function was not.
- リンク情報
- ID情報
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- DOI : 10.1292/jvms.66.1021
- ISSN : 0916-7250
- PubMed ID : 15472462
- Web of Science ID : WOS:000224539900001