What Is the Colby Pitbull Bloodline?

The Colby pit bull bloodline began in 1889. John P. Colby began breeding American Pit Bull Terriers via a strain that he imported to the United States from England and Ireland. The Colby line is still favored and respected worldwide. It is known to be one of the best strains in conformation, temperament and gameness. Colby pit bulls are universally recognized as meeting very high standards.