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Journal of Dairy Science Vol. 50 No. 8 1234-1236
© 1967 by American Dairy Science Association ®
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Comparison of the California Mastitis Test, Catalase Test, and pH Readings on Quarter Milk Samples

C. T. Raby, P. L. Hubbard and R. H. Cobbins

Colleges of Agriculture and Biology, Southern University, Baton Rouge, Louisiana

ABSTRACT

Three representative groups from 611 quarter samples of aseptically collected milk were compared for catalase, pH, and California mastitis test readings.

Statistical analysis (determination of correlation coefficient) was applied to 102 of the 611 quarter samples. It was found that the correlation coefficient for catalase and pH reading was more significant than the correlation coefficient of the catalase and CMT or the pH and CMT.

Correlation coefficients for pH and catalase in the three groups were .63, .13, .57; those for pH and CMT were .11, .15, .40; and those for catalase and CMT, were .38, .23, and .29.






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Copyright © 1967 by the American Dairy Science Association ®.