What is the purpose of estrogen in livestock?

Estrogen plays a crucial role in the reproductive systems of livestock, primarily serving to stimulate ovulation. In females, estrogen is produced by the ovaries and is key for the regulation of the estrous cycle, which governs the timing of ovulation and fertility. This hormone helps prepare the reproductive tract for potential fertilization and supports the overall function of the reproductive system.

While muscle growth, digestion, and energy levels are important aspects of livestock management, they are primarily influenced by other hormones, nutrients, and metabolic processes. For example, growth hormones and various nutrients are more directly responsible for muscle development, while digestive enzymes and gut health are essential for food digestion. Similarly, energy levels in animals are largely associated with their diet and metabolism rather than being regulated by estrogen. Thus, the distinct role of estrogen in stimulating ovulation makes it the correct choice among the options provided.