人绒毛膜促性腺激素对公牛血浆睾酮水平的即时影响。
The immediate effect of HCG upon plasma testosterone levels in the bull.
作者信息
Sundby A
出版信息
Acta Vet Scand. 1981;22(3-4):403-8. doi: 10.1186/BF03548665.
No effect of HCG upon the plasma testosterone level in 16 bulls was seen the first 5 or 15 min after injection. In 8 bulls receiving 750 or 1500 i.u. HCG by intravenous injection a lag time of 30 min occurred before plasma testosterone response could be measured. The high plateau level of plasma testosterone concentration was reached approximately 1 h after injection. Following intramuscular injection of 750 i.u. or 1500 i.u. HCG a lag time of 45–60 min was observed for the testicular response measured as elevated plasma testosterone level. The high plateau levels of plasma testosterone in these bulls were reached approximately 1½ h post injection.
注射后最初5或15分钟内，未观察到HCG对16头公牛血浆睾酮水平有影响。8头公牛通过静脉注射750或1500国际单位的HCG后，在可测量血浆睾酮反应之前出现了30分钟的延迟时间。注射后约1小时达到血浆睾酮浓度的高原水平。肌肉注射750国际单位或1500国际单位的HCG后，以血浆睾酮水平升高衡量的睾丸反应出现了45 - 60分钟的延迟时间。这些公牛血浆睾酮的高原水平在注射后约1个半小时达到。
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