What is the average swine litter size?

The average swine litter size is typically between eight to twelve piglets. This range reflects the reproductive capabilities of modern breeds of pigs, which have been selected for traits that enhance productivity. Sows are generally able to have multiple litters per year, contributing to a higher average litter size compared to older breeds or less intensive breeding practices.

While smaller litter sizes like those found in the ranges provided in other answers can occur, they are less representative of what is average for today’s commercial swine operations. The genetics, nutrition, and overall management practices of swine production have evolved to optimize litter size, pushing it into that eight to twelve range, thus making it the most accurate choice for average litter size.