A technology has been developed for the production of special feed additives for highly productive animals. The composition of the feed additive based on flax seeds, corn and biologically active substances (bioplexes of iodine, selenium, vitamin E) has been scientifically substantiated. Technological modes of extruding a mixture of flax and corn, preparing a premix from biologically active substances, methods of preparing and mixing components and controlling the quality of products have been worked out on the farm, on the equipment of the feed shop (extruder, crusher, mobile conveyor, unit for the production of compound feed "Doza").Technological lines for the preparation of raw materials and the production of enriching feed additives for animal husbandry are developed on the basis of the cyclicperiodic use of the equipment available in the feed shop. Experimental samples of Omegalen-1 and Omegalen-2 additives were obtained. The composition of the additive "Omegalen-2", in% by weight: flaxseed - 70; corn scum - 29.83; vitamin E (50) - 0.007; Seleno-Ki (0.25) - 0.007; OMEK-J (2.5) - 0.003; table salt (preservative) - 0.153, the activity of the drug is given in brackets. It has been established that the use of this additive in the diet of highly productive cows in the amount of 0.5-1.0 kg per day during the milking period increases the milk productivity of animals by 16.4%. The technology for the preparation of feed additives is simple and easily applicable to farm conditions.