Navrátil S, Forejtek P
Vet Med (Praha). 1979 Apr;24(4):239-43.
In two sexually mature boars subjected to bilateral vasectomy the content of testosterone was followed in the semen and blood plasma prior to the operation and in the course of 26 days after the operation. In the third boar only the operation without actual vasectomy as the control was made to eliminate the possible effect of narcosis and of the surgical stress. Bilateral vasectomy induced an average decrease in the initial levels of testosterone in the semen plasma of the first and second animal by 63.24% and 47.67% respectively, and 47.17% and 56.46% respectively in the blood plasma. In the control boar no analogous post-operation drop of testosterone concentration in the semen plasma was observed, the content of testosterone in the blood plasma decreased over the followed period on an average only by 14.38%. The results imply that bilateral vasectomy in boars results, in the first followed month after the surgical procedure, in a decrease of semen and plasma testosterone, which proves that the operation under investigation affects testicular incretion.
对两头性成熟的公猪进行双侧输精管结扎，在手术前以及术后26天内，对其精液和血浆中的睾酮含量进行跟踪监测。对第三头公猪仅进行手术但不实际结扎输精管作为对照，以消除麻醉和手术应激可能产生的影响。双侧输精管结扎使第一头和第二头动物精液血浆中睾酮的初始水平平均分别下降了63.24%和47.67%，血浆中分别下降了47.17%和56.46%。在对照公猪中，未观察到精液血浆中睾酮浓度类似的术后下降情况，血浆中睾酮含量在跟踪期内平均仅下降了14.38%。结果表明，公猪双侧输精管结扎在手术后的第一个跟踪月内会导致精液和血浆睾酮水平下降，这证明所研究的手术会影响睾丸分泌。
