Title
RELATIONSHIPS BETWEEN SOMATIC CELLS COUNTS AND UREA LEVEL IN THE MILK OF POLISH HOLSTEIN-FRIESIAN COWS OF BLACK-AND-WHITE AND RED-WHITE VARIETIES
Autor
Jarosław Pytlewski, Ireneusz Antkowiak, Ryszard Skrzypek
Keywords
milk, somatic cell count, urea
Abstract
The aim of the study was to investigate the effect of somatic cell counts on urea content in the milk of Holstein-Friesian cows of Black-and-White (N = 390) and Red-White (N = 86) varieties kept on a farm in the Wielkopolska region. It was found that urea level in milk of the evaluated genotypes of cows was within the accepted standard, with higher values of this parameter in Red-and-White cows. In Polish Holstein-Friesian of Black-and-White variety a decrease in urea level was shown with an increase in somatic cell count in milk. Taking into consideration the daily yield of milk and fat corrected milk (4%-FCM) the most advantageous results were recorded for animals with the lowest somatic cell count in milk.
Pages
39-50
Cite
Pytlewski, J., Antkowiak, I., Skrzypek, R. (2010). RELATIONSHIPS BETWEEN SOMATIC CELLS COUNTS AND UREA LEVEL IN THE MILK OF POLISH HOLSTEIN-FRIESIAN COWS OF BLACK-AND-WHITE AND RED-WHITE VARIETIES. Acta Sci. Pol. Zootechnica, 9(2), 39-50.
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