When cows are bred at the ideal time, the result is more pregnancies, fewer rebreeds and fewer open cows. When one considers the additional savings in semen and A-I services, it is clear that quality heat detection gives a good return on investment. Estrotect Breeding Indicator patches are low-cost, simple to use aid to the herdsman’s visual observation for detecting cows in standing heat. Repeated mounts cause the outer coating of the Extrotect Breeding Indicator to rub off, exposing a brilliant orange patch which is visible even from a distance. Extrotect Breeding Indicators, which are self-adhesive and require no messy glues, are sold in packages of 50. Red in color.