[The activation pathways and changes in the endocrine function of the testes evoked by the effect of the presence of the female].

It has been shown on male mice of A/He strain that the presence of a receptive female placed behind a network partition in a cage with a male mouse caused a sharp rise on the 20-40th min. of the blood level of testosterone resulting from appropriate changes in testicular biosynthetic capacity. This rise of the level of testosterone in the male blood is realized via the transadenohypophyseal route because the antagonist of LH-RH receptor completely blocks this effect. A conclusion has been made that the activating effect of the presence of a receptive female on the blood level of testosterone is realized with the involvement of LH-RH receptors via the transadenohypophyseal route.