| Issue |
BIO Web Conf.
Volume 82, 2024
International Scientific and Practical Conference “Methods for Synthesis of New Biologically Active Substances and Their Application in Various Industries of the World Economy – 2023” (MSNBAS2023)
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|---|---|---|
| Article Number | 02002 | |
| Number of page(s) | 6 | |
| Section | Use of Biologically Active Substances in Crop Production, Animal Husbandry and Other Industries | |
| DOI | https://doi.org/10.1051/bioconf/20248202002 | |
| Published online | 03 January 2024 | |
Seasonal changes in milk quality indicators jersey cows
Federal State Budgetary Educational Institution of Higher Education Stavropol State Agrarian University, Stavropol, Russia
* Corresponding author: soliynik60@gmail.com
The article presents the results of studies of milk quality indicators: the mass fraction of fat, the mass fraction of protein and the number of somatic cells in the Jersey breed in the Stavropol Territory in 2022-2023. In the autumn period, the indicators of the mass fraction of fat and protein were higher compared to other seasons and equal to 6.08% and 4.66%, respectively. The number of somatic cells was also increased in the autumn and spring periods of 140 and 146 thousand units/ml, respectively. A significant negative correlation of the mass fraction of protein and average daily productivity to the number of somatic cells r = -0.21 and -0.12 was established. And a significant positive correlation between the mass fraction of fat and the level of somatic cells r = 0.52.
© The Authors, published by EDP Sciences, 2024
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