The aim of the study was to compare the level of production traits of Holstein-Friesian cows imported from Germany with their native age mates. The course of parturitions in the studied animals was also evaluated. Native cows were characterized by higher milk yield in the first 305-d lactation compared with imported cows. Animals from Germany were superior to the local ones with regard to fat yield in kg and milk yield expressed in FCM. Protein yield was running at the same level. When analyzing the age at first calving, the significant differences (P ≤ 0.01) between the studied groups of animals were observed. Imported cows had greater number of difficult parturitions. The higher body weight of imported cows and lower body weight of calves were found in comparison with native cows.

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