The influence of a sound in forming sexual hormones in simians

The obtained data show that a sound has an influence on sexual system condition of primates. So to simians - Sveta and Liza-were observed the level increase of to follicle-stimulating hormones. At the same time progesterone indices have decreased. Macaque Lapunder called Leila had no similar changes of hormonic status. Probably, the conducted sounding coincides with lutein phase of sexual cycle and that resulted in increasing of progesterone and decreasing of follicle-stimulating hormone in blood. The sounding was conducted in females of green marmosets in the period of gestation and non-gestation period. Further they had brought healthy offspring, therefore, the sound influence didn`t provoke the abortions or any foetus pathology.