Two commercial feedlot experiments were conducted to compare performance and carcass characteristics of feedlot heifers and steers using 2 implant strategies. In Exp. 1, heifers (n = 1,124; initial BW = 279 ± 5 kg) were administered either Revalor-IH [Intervet/ Schering Plough Animal Health, DeSoto, KS; 8 mg of estradiol (E2) and 80 mg of trenbolone acetate (TA)] or Synovex-H (Fort Dodge Animal...
