A.H. Swine 1
A Duroc inbred line has been maintained in the South Dakota Station Swine Breeding project since 1947. Until 1953 selection of breeding animals was based on a performance index as well as the usual attention to individuality, especially body length, underlines and soundness of feet and legs. Beginning with the 1953 season, all pigs were probed to determine live backfat thickness and this information made a part of the selection process.
Number of Pages
Agricultural Experiment Station and Extension Service, South Dakota State College
McCarty, J.W., "Breeding Hogs with Less Backfat" (1960). South Dakota Swine Field Day Proceedings and Research Reports, 1960. 2.