What is proestrus associated with?

Proestrus is the initial stage of the estrous cycle in female mammals and is closely associated with follicle development. During this phase, the ovaries begin to prepare for ovulation by developing follicles, which contain the eggs. These follicles produce estrogen, leading to physical and behavioral changes in the female.

In proestrus, although the female is not yet in true heat (or estrus), her body is preparing for the mating season. The development of these follicles is crucial, as it sets the stage for the next phase of the cycle, where ovulation occurs, allowing for potential fertilization. Thus, understanding the role of follicle development in proestrus is essential for recognizing the broader aspects of reproductive physiology in animals.