Circular barn used for animal husbandry with diametr of bard „d“ or in shape of n-gon inscribe into circle, is provided with a roof in shape of pyramid with n-gon basement. The roof is provided with ventilation slot equiped by vent extension. The barn is divided into rings which are used for animals housing with central motion corridors. Those are situated directly into milking parlor, which is situated in the center of the barn. The barn is equiped with a system enabling automatic animals shifting. This system contains moving gates and fences with pneumatic control. Chain reels for automatic shifting of animals inside the barn are used as well, which allows shifting the animals from place of animals housing (resting and feeding area) through walking corridors to the waiting area in the milking parlor, to the milking parlor and back. In the barn there is an automatic system for animals feeding. One part of the automatic milking parlor are automatic systems for data collection about animals movement, animals health, weight with opportunity of automatic selection and automatic system for automatic controlling of the whole barn.