ESTROTECT Breeding Indicators are the only product of their kind proven by leading researchers. We developed and tested the new ESTROTECT Breeding Indicator on thousands of cows around the world. According to a 2018 third-party, timed-AI beef cattle trial, when the new ESTROTECT Breeding Bullseye is rubbed off by mounting activity, cows are up to THREE TIMES more likely to result in confirmed pregnancies than if estrus is not detected prior to insemination.