Age-Related Characteristics of Milk Productivity in the Second Generation Bred from the Daughters of Imported Purebred Holstein Heifers

Abstract

In order to improve cattle breeding in Armenia, it is proposed to use animals of second generation bred from the daughters of purebred Holstein heifers imported from Europe. The studies were conducted in 2017-2018 on the “Arzni Poultry, Cattle and Pig-Breeding” farm, OJSC under grazing and stall housing conditions. It was found out that the 2nd generation cows born from purebred heifers᾿ daughters imported from Germany, at the stage of the 3rd lactation have exceeded the requirements of the breed standard for 305 days᾿ milk amount by 1112 kg or by 22.2 % which evidences on sufficient acclimatization capacity, as well as on targeted breeding of the selected young replacement stock through innovative technologies.