Abstract
The introduction of modern technological advances and principles of dairy herd management, which were developed in the member countries of the International Committee for Animal Registration (ICAR), contributed to the increase in milk productivity of pedigree cattle at the national level. The harmonization of national regulatory documents with the methodological principles developed in ICAR is a promising area. The study of new methodological approaches to the assessment of milk productivity shows that one of the differences in the assessment of daily milk yield, milk fat and protein yield is the different frequency of performing the corresponding work on the control milking of cows, the formation of a daily milk sample and the necessary mathematical calculations. In the in article various approaches to assessing the daily yield of the main dairy components during 2- and 3-fold milking of cows of a herd of pedigree black-and-white cattle are considered and coefficients are proposed for recalculating the daily content of fat and protein in milk. At the same time, the presented research results, in general, coincide with the main trends in the dynamics of milk fat and protein indicators shown in the ICAR recommendations.
Highlights
Dairy farming is one of the main suppliers of protein and fat of animal origin, belongs to the most important branch of agriculture and plays a primary role in ensuring adequate nutrition for the population
Analysis of the International Committee for Animal Registration (ICAR) methodological recommendations in the field of accounting for milk production of cows shows that in the practice of many countries of the world the so-called alternative accounting method (AT) is used, which involves a single sampling of milk during the day, followed by recalculation of the average daily content of milk fat and protein using special coefficients [3]
The research was carried out with the aim of studying the dynamics of the content of the main dairy components in raw milk obtained from black-and-white breeding cows with 2- and 3-fold milking
Summary
Dairy farming is one of the main suppliers of protein and fat of animal origin, belongs to the most important branch of agriculture and plays a primary role in ensuring adequate nutrition for the population. The introduction into the practice of Russian dairy cattle breeding of the basic methodological principles for recording the productive qualities of dairy cows, developed by the International Committee for Animal Registration (ICAR), is one of the recognized promising directions for the development of dairy farming [1]. Harmonization of national regulatory documents with international legislation will allow Russian livestock breeders to effectively sell pedigree products and genetic material on the world market, which will help to increase the efficiency of the industry and the attractiveness of the dairy business [2]
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