Method for selecting technological type cows for robotic milking

The technological properties of the udder of cows have been studied under the conditions of using a robotic milking system. The research material was Holstein cows in the peasant (farm) economy of the Republic of Tatarstan, serviced by "Astronaut A4" robotic milking from "Lely Industries N.V.". A method for selecting cows for robotic milking has been developed. At the same time, in the herd, first, cows of the 1st lactation at 2-4 months of lactation are assessed according to the duration of milking and animals with duration of milking from 3 to 6 minutes are selected. Then, cows are selected from this group, whose lactation intensity indicator at 2-4 months of lactation exceeds the average value of this group by 0.5 sigma (M + 0.5а), where M - the arithmetic mean of the indicator; а - the standard deviation of the indicator. The proposed selection method makes it possible to form a breeding core and increase the milk yield in 305 days of lactation in the group of first-calf cows by 9.5 % (P