Swine breeds refer to the various types of domestic pigs that have been developed for specific traits, such as size, growth rate, and meat quality. Common breeds include Yorkshire, known for its large size and good mothering abilities, and Berkshire, prized for its flavorful meat. Each breed has unique characteristics that make it suitable for different farming practices. In addition to these, Duroc pigs are recognized for their fast growth and muscle quality, while Landrace pigs are valued for their high fertility and adaptability. Understanding these breeds helps farmers select the right type for their production goals.