Comparative assessment of the productive qualities of Holstein and Jersey dairy cattle

FSBEI HE Stavropol SAU, Stavropol, Russia

^* Corresponding author: soliynik60@gmail.com

Abstract

The development of the dairy business in modern conditions is closely related to the demand for dairy raw materials in the food market. The preferences of consumers of dairy products also have an impact on the required quality of dairy raw materials. The increase in dairy productivity of cows in Russia is due both to the introduction of modern milk production technologies and to the breeding of Holstein cattle, which is the world leader in milk production. At the same time, in connection with the assessment of the quality of dairy raw materials, mainly in terms of fat and protein content, commodity producers are interested in increasing the indicators of protein and fat content in dairy cattle. A comparative study of the milk productivity of the brood stock of the Jersey and Holstein genotypes showed that Holstein cows were the best in milk yield by 39.31%. Nevertheless, analogues of Jersey cows exceeded Holstein analogues in milk fat yield by 35.24% and protein by 21.36% per 1 kg of live weight, which is possible due to a higher conversion of nutrients from feed to dairy products in Jersey cattle genotypes. The results obtained increase the attractiveness of Jersey cattle when breeding in the conditions of the North Caucasus.