Izvorni znanstveni članak

https://doi.org/10.18047/poljo.31.2.6

The Influence of Somatic Cell Count in Milk on Its Composition During the Summer Period

Iryna Lastovska orcid.org/0000-0003-0763-8528 ; Bila Cerkva National Agrarno sveučilište, Biološko-tehnološki fakultet, Soborna pl. 8/1, 09117 Bila Tserkva, Ukrajina
Mykhailo Matvieiev orcid.org/0000-0003-1281-9032 ; Nacionalno sveučilište za biološke i ekološke znanosti Ukrajine, Fakultet stočarstva i vodnih bioresursa, ul. Herojev Oboron, 12A, Kijev, 03041, Ukrajina *
Oleksandr V. Borshch ; Bila Cerkva National Agrarno sveučilište, Biološko-tehnološki fakultet, Soborna pl. 8/1, 09117 Bila Tserkva, Ukrajina
Andriy Getya orcid.org/0000-0002-4747-9261 ; Nacionalno sveučilište za biološke i ekološke znanosti Ukrajine, Fakultet stočarstva i vodnih bioresursa, ul. Herojev Oboron, 12A, Kijev, 03041, Ukrajina
Sergiy Ruban orcid.org/0000-0002-8114-3665 ; Nacionalno sveučilište za biološke i ekološke znanosti Ukrajine, Fakultet stočarstva i vodnih bioresursa, ul. Herojev Oboron, 12A, Kijev, 03041, Ukrajina
Olena Babenko ; Bila Cerkva National Agrarno sveučilište, Biološko-tehnološki fakultet, Soborna pl. 8/1, 09117 Bila Tserkva, Ukrajina
Oleksandr O. Borshch ; Bila Cerkva National Agrarno sveučilište, Biološko-tehnološki fakultet, Soborna pl. 8/1, 09117 Bila Tserkva, Ukrajina
Ivan Chumachenko ; Nacionalno sveučilište za biološke i ekološke znanosti Ukrajine, Fakultet stočarstva i vodnih bioresursa, ul. Herojev Oboron, 12A, Kijev, 03041, Ukrajina
Denys Ostrovskiy ; Nacionalno sveučilište za biološke i ekološke znanosti Ukrajine, Fakultet stočarstva i vodnih bioresursa, ul. Herojev Oboron, 12A, Kijev, 03041, Ukrajina

* Dopisni autor.

Sažetak

The aim of our paper was to study the relationship between somatic cell count, milk productivity, and specific technological parameters of the milking process in cows during the summer period. The research was conducted on a commercial farm in the central part of Ukraine from June to August 2024 on the Holstein cows with 1 to 5 lactations. Milk analysis was performed in a commercial laboratory using Bentley Instruments equipment. The following was analyzed: fat content (FC, %), protein content (PC, %), lactose content (LC, %), somatic cell count (SCC, thsd./cm3), and milk urea nitrogen (MUN, mg/100 ml). General linear model (GLM) and correlation analysis were applied. To analyze the influence of the “group of SCС” factor on the milk composition, all studied milk samples were divided into three groups according to the SCC in them: 1) ≤300; 2) 300–500; 3) ≥500. There was an established negative correlation between the LС, somatic cell score (SCS, -0.387, p < 0.001) and single milk yield (-0.225, p < 0.001). It was found that most traits, such as the FC, F/P, and MUN concentrations, increased in August if compared to the other summer months. The SCS decreased every month during the summer and was lowest in August (3.04±0.048).

Ključne riječi

dairy cows; somatic cells; selection traits; lactose; GLM

Hrčak ID:

342514

URI

https://hrcak.srce.hr/342514

Datum izdavanja:

28.12.2025.

Podaci na drugim jezicima: hrvatski

Posjeta: 890 *