Abstract
Cows’ milk productivity determining method of includes: determining the amount of milk during control milking, milk sampling and analyzing its fat and protein content for each milking, they are the same indicators for the day; calculating the conversion coefficients of milk amount and the mass fraction of fat and protein for each milking into daily indicators. Then one control milking is performed per day, and the same indicator is calculated for the same type of feeding, maintenance, and milking based on its indicators multiplied by the Corresponding coefficient. The time intervals between milking being unequal, milk productivity is more accurately determined by a single milk yield after a longer interval between them. For this method, milk cows are taken from the tenth day of lactation and more. The method allows reducing labor costs and working hours of operators and laboratory assistants to daily determine the dairy productivity of cows, as well as to reduce the stress load on animals.
Highlights
In the technology of milk production in financial planning, it is mandatory to determine the milk productivity of cows
The method for determining cows’ milk productivity includes accounting the amount of milk and the concentration of fat and protein in it separately for each milking, finding the same indicators for a day, calculating the conversion coefficients of the amount of milk and the mass fraction of fat and protein for each milking into daily indicators, calculating the indicators for a day based on data for one milking and conversion coefficients according to the developed formulas
To more accurately determine the milk productivity of cows per day, indicators are used for one single milk yield after a longer interval between milkings
Summary
In the technology of milk production in financial planning, it is mandatory to determine the milk productivity of cows. The basis of this is the determination of the cows’ dairy productivity per day during control milking. They are held as many times a day as these animals are usually milked. Each milking the amount of milk is determined, the milk is mixed and a sample is taken from it for composition analysis; from these samples, an average sample of milk per day is made in proportion to the amount of milk in each milking [1]. The cow secretes milk after calving for an average of 10 months
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