EVALUATION OF CERTAIN MASTITIS DETECTION TESTS

Author:

Jensen C.1,Beck L. D.1,Rusness Donald G.1

Affiliation:

1. Department of Animal Science, North Dakota State University, Fargo 58102

Abstract

A curvillinear regression resulted when the Feulgen-DNA test scores were plotted against the average concentration of leucocytes. Application of a logarithmic transformation to the average test data resulted in a linear correlation which slightly raised the correlation between the Feulgen-DNA Test and the leucocyte count. But, the application of a sample per cow transformation to the average test data from each of 30 representative cows, resulted in an approximate linear relationship and in significant correlations between the Feulgen, California, and Whiteside tests and the leucocyte count. Correlations in descending order were Feulgen> California> Modified Whiteside Test with respect to the leucocyte count.

Publisher

International Association for Food Protection

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