EN
A survey covering 50 or more cows, in the herds under the milk quality control, led by PFHBiPM in the Wielkopolska province has been conducted. Maintenance system, milking parlour type and the method of manure removal from the building were included. Cows were kept in 144 herds in tie-stall byre; 103 herds were kept in free-stall system with open/common space and 222 herds in free-stall byre. Almost 99% of herds in tie-stall byres and 81% of herds in free-stall byres were kept on the litter. Waste removal in more than 90% was performed, using a tractor equipped with stripper. In over 80% of the herds, cows were milked in herringbone type parlours.