[Effect of copulation on the follicular development and ovulation in rat (author's transl)]

The follicular development, ovulation and position of the oocytes in the stretched tubes at different phases and times of the rat's ovarian cycle, and the effect of different conditions of copulation on these processes have been studied. With copulation from the 16th hour of diestrus to the 16th hour of proestrus, the number of large follicles, follicles total, and oocytes plus follicles increased significantly. With copulation from the 10th hour of proestrus to the 10th hour of estrus, the number of oocytes, small follicles and follicles total increased significantly. Copulation, therefore, facilitates the processes of follicular development and ovulation.