The National Institute of Animal Science, through the 'Pig Improvement Network Construction Project', has selected 8 genetically superior pigs from Durok, Yorkshire, and Landrace breeds to enhance Korean-style pigs for local breeding conditions. Involving 17 pig farms and 6 artificial insemination centers, the project aims to improve pig productivity by sharing these superior pigs and their semen. The Livestock Research Center has also developed a new evaluation system for Durok breeding traits and plans to create similar systems for other breeds. An additional 12 breeding pigs will be selected later this year to further boost productivity.