EN
Analyses of performance for the cows with complete exploitation term showed pronounced superiority of crossbreds, especially those with 50 and 75% HF, over purebred cows in respect of millc production for one year. Tak: into account all the traits, the best results were found in the crossbreds with 50% HF. The milk of the crossbred cows had higher fat content in compi rison with the Red-White. The crossbreds, in spite of the HF share /from 12,5 to 75%/, showed worse indices of longevity as well as exploitation term, compared with the Red-White breed.