There are 91 horses competing in the eight Breeders' Cup World Thoroughbred Championships races Saturday at Arlington Park. Of them, only three will not run on Salix.Not surprisingly, the three horses who will not receive Salix shots are Europeans, though that puts them in a minority even among horses shipping in from abroad.The three are Medecis in the NetJets Breeders' Cup Mile (gr. IT), and Islington and Turtle Bow in the Filly & Mare Turf (gr. IT).Last year, among those who did not race on Salix was Filly & Mare Turf winner Banks Hill, who shipped from France for the race.Those who ran last year on Salix included Johannesburg, who won the Bessemer Trust Juvenile (gr. I) and came from Ireland.There are some equipment changes of note for Saturday:· In the Distaff (gr. I), Starrer will have blinkers on.· In the Long John Silver's Juvenile Fillies (gr. I), Sea Jewel will race with blinkers on.· In the Juvenile, Lone Star Sky will race with blinkers on.· In the Classic, Volponi will race with blinkers on.