O. N. Burgomistrova1, V. I. Noskova1
1 Vologda State Dairy Farming Academy named after N. V. Vereshchagin, Vologda, Molochnoe village, Russia
Е-mail: ОThis email address is being protected from spambots. You need JavaScript enabled to view it.
Volume 25 No. 7
Date of paper submission: 04.02.2025, date of review: 14.04.2025, date of acceptance: 30.05.2025.
Published: 07/31/2025
Abstract. The purpose is to evaluate the quality of raw milk according to key parameters depending on the season, which will allow tracking breeding processes in the herd and the dynamics of milk productivity and fat and protein content in raw milk in order to increase breeding reserves. Methods. The study was conducted on 25,617 milk samples in accordance with the monthly milking control schedule for the period from 2021 to 2023 at one of the leading agricultural enterprises in the Vologda Region. The samples were analyzed on an express milk analyzer “Ecomilk Total KAM 98-2A”, the research results were systematized and processed using the Microsoft Excel program using generally accepted methods of variation statistics. Scientific novelty. The research is applied in nature and serves as the basis for creating databases and predictive models, on the basis of which sustainable herd management methods are developed depending on the season in order to identify hidden resources to increase dairy productivity in the farm. Results. It was found that Holstein cows have slight fluctuations in milk yield depending on the season of the year, the largest amount of milk was received in the autumn season in 2021 and 2023, and in the summer season in 2022, there is a positive trend in increasing the amount of milk in the controlled population in the range of 24.3–43.6 %. The highest yield was obtained in 2023 in the autumn period – 43.5 kg per day. When assessing fluctuations in the mass fractions of fat and protein, there were no significant differences in the seasons of these years. The complex indicator milk fat and milk protein indicates the high parameters of the Holstein breed of 1.7 kg and 1.36 kg, respectively, so it is advisable to study the dynamics of milk productivity by season in order to increase breeding reserves.
Keywords: Holstein breed, season of the year, milk productivity, mass fraction of fat, mass fraction of protein, standard for purchased milk, quality indicators, technology of maintenance
For citation: Burgomistrova O. N., Noskova V. I. Dynamics of the content of the main nutrients of raw milk and dairy productivity of cows depending on the season in the Vologda oblast. Agrarian Bulletin of the Urals. 2025; 25 (07): 1048‒1059. https://doi.org/10.32417/1997-4868-2025-25-07-1048-1059 (In Russ.)
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