SwineMate Solution 0.22%ALTRENOGEST SOLUTION Estrus Synchronization & Breeding Management for Gilts Take control of your breeding program with Altrenogest Solution, a trusted and proven product formulated to synchronize the estrus cycle of sexually mature gilts that have experienced at least one natural heat cycle. This easy to administer solution helps create a predictable breeding schedule, allowing for better management, uniform farrowing, and improved herd productivity.