Dairy productivity of Swiss cows of different origin

The article presents the results of a comparative assessment dairy productivity Swiss cows different origin. superiority in milk yield first heifers brown breed Austrian breeding all months lactation over peers other groups has been established. At same time, curves imported and their hybrids with local Shvits indicate that maximum levels were observed earlier periods – for 2-3 lactation, whereas individuals population 3-4 months. After peak experimental livestock, crossbred heifers, whose curve was relatively equalized, best preserved at achieved level, while had sharp decline. highest level distinguished by breeding, which surpassed both half-blooded (by 686 kg, P>0,999) 1656 P>0,999). Imported animals, as well crossbreeds, exceeded fat 37,8-62,7 kg (P>0,999) protein 31,8–54,1 population.