What role does FSH (follicle stimulating hormone) play in livestock?

FSH, or follicle stimulating hormone, plays a crucial role in the reproductive system of livestock by promoting the development of ovarian follicles. In females, it is primarily responsible for stimulating the growth and maturation of these follicles, which are essential for ovulation. As the follicles develop, they also produce estrogen, which is vital for the estrous cycle and preparing the body for potential pregnancy.

This hormonal activity is particularly important in livestock management, where understanding and manipulating breeding cycles can enhance reproductive efficiency. The ability to support follicle development leads to improved chances of successful mating and, ultimately, increased productivity in breeding programs.

The other options relate to different physiological processes that FSH does not influence. For example, muscle growth is influenced by other hormones such as testosterone and growth hormone, uterine contractions are typically managed by oxytocin, and digestion is supported by enzymes and digestive hormones like gastrin and secretin. Thus, the primary function of FSH is specifically tied to reproductive health and the regulation of the estrous cycle in livestock.