Pathogens Transmission and Cytological Composition of Cow’s Milk

Year 2019, Volume: 45 Issue: 3, 73 - 79, 01.09.2019

Oksana Shkromada Oleksandr Skliar Alina Pikhtirova Gerun Inessa

Abstract

DOI: 10.26650/actavet.2019.19004

The article deals with the data on the
quantitative and species composition of somatic cells in milk of cows of Black
spotted breed. In the main period of lactation, the number of somatic cells in
milk is up to 100 ths/cm3. In cases of subclinical mastitis, the somatic cell
count in the udder secretion increases to 30-35 mL/cm3. However, it should be
noted that in the case of subclinical mastitis their number increases in
thousands times. Thus, studying the species composition of somatic cells and
morphological structure of basophils in milk of cows with subclinical mastitis,
we did not find any relationship between their number, morphological structure
and period of disease. Results of our study show that pathogenic staphylococci
(Staphylococcus aureus) were the cause of subclinical mastitis in 67-73% of
cases. Streptococcus agalactiae caused the disease in about 20% of all cases.
The results of the study of bacterial contamination of the udder skin showed
that regardless of the animal age, pathogens of subclinical mastitis are always
present on the udder skin. The main carrier of the subclinical mastitis
pathogens from the sick animal to the healthy one is the rubber of milking
cups. 

Cite this article as: Shkromada, O., Skliar,
O., Pikhtirova, A., Inessa, G., 2019. Pathogens transmission and cytological
composition of cow’s milk. Acta Vet Eurasia 45, 73-79.

Keywords

Cow, milk, somatic cells

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