Attention Iowa State Dairy Association (ISDA) members – you could win a free Registered Holstein calf this summer, thanks to ISDA, the Sioux Dairy Equipment of Rock Valley and Westfalia Surge.To be eligible, you must be a producer member of ISDA. The winner will be announced at Noon on Friday, August 8 at the Iowa State Fair. Registered Holstein calf is Dyks R Candy – ET, born 1/26/07, Sire Regancrest Roy Racer and Dam Dyks Durham Cupcake.