%0 Journal Article %T Milk productivity and reproductive performance of black and white cows, depending on the technology of milk production %A Nazarova, K.P. %A Berezkina, G.Y. %K milk production, milk quality, lactation, interbody period, insemination index, milking technology, cow biological efficiency, pregnancy, reproductive rate %J Agrarian Bulletin of the %D 2021 %N 204 %P 8 %I Ural State Agrarian University