The aim of the study was to determine the relationship between diseases of the reproductive tract and intensity of culling, and lifetime productivity of cows. Investigations were conducted in a large herd of Polish Holstein-Friesian cows of Black-and-White strain. When analyzing the intensity and causes of culling of animals in terms of the SYMLEK system codes it was shown that the largest number of animals (40.67%) was removed from the group comprising infertility and diseases of the reproductive tract. The most frequent cause of culling in animals from this group was infertility (71.67%), followed by retention of placenta with complications (7.08%), damaged inguinal ligament (6.23%), milk fever (4.81%), intrauterine tumours and adhesions (3.40%) and metritis (2.83%). The other specific causes of culling cows from this group were of minor importance, accounting for 1.42 to 0.57%. Statistical analysis showed a significant effect of selected specific causes of culling from the group of infertility coupled with diseases of the reproductive tract on lifespan, length of productive life and milking period as well as traits of lifetime milking performance, except for fat yield per day of productive life and day of lactation.

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