RELATIONSHIP OF FEULGEN-DNA IN MILK AND OF MILK QUALITY TEST (MQT) TO THE NUMBER OF MILK SOMATIC CELLS1

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Abstract
The relationships of Feulgen-DNA for determinations and Milk Quality Test (MQT) score with the concentration of milk cells were determined for 75 milk samples. The correlation of the number of each cell type with Feulgen-DNA score was consistently higher than with MQT score. There was a linear relationship when both variables were transformed to logarithms. The correlation of the logarithms of the coded Feulgen-DNA scores with the logarithms of total cell numbers was 0.909. The coefficient of variation for Feulgen-DNA scores was 7% (much less than the 32% for the microscopic estimations of cell concentration).

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