The ORION-DF is a dry feed computer for pig farming. When using multiphase feeding it is possible to feed per animal or per feeding bin. The ORION-DF can compose a mixture of different feed types, so the mixture always suits the animals. The feed components are supplied from silos as well as the dosing appliances. If required the feed can be crushed by means of a crusher. The quantity and the composition of a feed ration are saved in a feed chart. The feeding amount and times are set in a biorhythm chart.