Adena Springs South is an integral part of the Eclipse Award-winning equine empire owned by Magna Entertainment's Frank Stronach. Based near Ocala in Williston, the breeding and training complex covers 4,500 acres, tied with Charlotte Weber's Live Oak Stud as Florida's biggest in terms of acreage. On the evening of March 17, Adena Springs will conduct its annual selected 2-year-olds in training sale under the auspices of the Ocala Breeders' Sales Co.