The Thoroughbred Corp. is finished as a racing operation, according to its president, Richard Mulhall. More than 50 2-year-olds and older horses of racing age are catalogued for a dispersal at the Barretts March select juvenile auction Tuesday in Southern California.Johar, who finished in a dead-heat for first in last year's John Deere Breeders' Cup Turf (gr. IT), and French group I winner Elusive City will be sold privately. And grade I winner Dessert and grade III winner Stylish will be bred and sold in November at public auction. In addition, there are three or four injured racehorses, worth $5,000 or $6,000, "that will be patched up and sold," Mulhall said Monday.Mulhall said the heirs of Prince Ahmed Salman probably would retain their interests in various stallions that were former racehorses for The Thoroughbred Corp., such as Point Given, Royal Anthem, and Military."I'm not sure off the top of my head how many they have altogether," he said.Mulhall leaves his position with The Thoroughbred Corp. on April 1."The prince built an empire, and it's a shame it's over, but it's not the same without him," Mulhall said. "I'll have to find somebody else that wants to do the same thing."Salman died in 2002. Horses he owned were sold later that year, and more were sold in 2003. At last year's Keeneland November breeding stock sale, the remaining mares and weanlings owned by Salman grossed more than $30 million.