What is the term for a female swine that has not yet given birth?

The term for a female swine that has not yet given birth is "gilt." A gilt refers specifically to a young female pig that is still in the stage before she has farrowed (given birth to piglets). This distinction is important in animal husbandry for breeding purposes, as gilts are often selected for breeding programs to produce future generations of swine.

In contrast, a "sow" is a mature female pig that has already given birth, while a "boar" is an intact male pig used for breeding. A "piglet," on the other hand, is a very young swine, typically under eight weeks old, that has just been born. Understanding these terms is crucial for effective communication in agricultural education and practice.