Studies of Hereditary Traits in Horses Using New Tools

The horse industry in the United States is diverse. Horses are used for racing, competitive riding, showing, recreational riding, and working cattle. Today the number of horses in the United States is estimated at 9.2 million, down from 21 million around 1900, when horses were a primary source of power and transportation, but up from 4.5 million in 1959 (the last time the United States Department of Agriculture counted horses). According to an American Horse Council study, in 2004 the horse industry had a $102-billion impact on the U.S. economy and provided 1.4 million jobs. The horse industry is growing and important. More than ever, we need each horse to be athletically sound and healthy. Consequently, the thrust of equine genetics research on horses during the last half century has been related to health and physiology...TheHorse