A mother pig is commonly referred to as what?

A mother pig is commonly referred to as a "sow." The term "sow" specifically designates a female pig that has given birth to piglets. This distinguishes her from younger female pigs, such as "gilts," which have not yet had their first litter. Understanding these terms is essential in the context of pig farming and animal husbandry, as they help accurately identify different stages of a pig's life and their reproductive status.

Other options such as "brood" and "litter" refer to different concepts. A "brood" typically refers to a group of young animals hatched or born at the same time, while a "litter" specifically pertains to a group of piglets born from the same sow during a single birthing event. Thus, the correct terminology highlights the role of the sow as the mother in the context of pig production.