Journal or Book Title
Western Hog Journal
Breeders have been using gene markers since the 1990s to remove genes known to negative ly impact pork pro d u c t i on. Genes like the porcine stress syn d rome (HAL) and the NAPOLE gene (RN-) have been identified and are common ly selected against in most breeding herds so the deleterious genes are removed from their herds. In this manner com m e rcial pork producers do not h a ve to address these genes in their breeding herds because their genetic supplier has already managed the genes for them.
Stalder, Ken and Rothschild, Max, "Pork production improvement expected from the use of new genetic markers" (2008). Animal Science Publications. 397.