Schams D, Gombe S, Schallenberger E, Reinhardt V, Claus R
J Reprod Fertil. 1978 Sep;54(1):145-8. doi: 10.1530/jrf.0.0540145.
In 2 prepubertal bulls 10-min blood samples collected during a 24-h period showed that gonadotrophin and testosterone peaks occurred regularly at intervals of 6h in one animal and 8h in the other. There was a clear relationship between the LH, FSH and testosterone peaks. The increase of gonadotrophin levels was followed 20 +/- 6 (s.d.) min later by an increase of testosterone; the interval between the peak values was 61 +/- 9 (s.d.) min. The pattern of prolactin concentration differed; there were two prolonged elevations rather than regular peaks.
在2头青春期前的公牛中，在24小时内采集的10分钟血样显示，在一头动物中促性腺激素和睾酮峰值每隔6小时有规律地出现，在另一头动物中则每隔8小时出现。促黄体生成素（LH）、促卵泡生成素（FSH）和睾酮峰值之间存在明显的关系。促性腺激素水平升高后20±6（标准差）分钟，睾酮水平随之升高；峰值之间的间隔为61±9（标准差）分钟。催乳素浓度的模式不同；有两次长时间的升高，而不是规律的峰值。
