Criss-crossing

With this two-breed or criss-cross rotation, you start with the modern hybrid sow (db.Viktoria) and alternate between semen from one of the two sire lines db.03 and db.01, making sure that each subsequent female generation is always paired with the opposite breed to their sire. In the long term, the genetic ratio of the criss-crossed sows works out at approx. one third to two thirds, with the last used sire line accounting for two thirds. The great advantage of EgoFlex is that the whole herd can be used as breeding stock. With this system, the semen alone transfers genetic progress to the farm so the herd is completely closed. This system can also be applied in smaller herds, where it successfully stabilises herd health.