Relationships Between Wisconsin Mastitis Test Scores and Cell Counts in Milk

Open Access
Publisher Website
Google Scholar
Abstract
A direct relationship between WMT score and cell content of milk was obtained when the cell content, divided by 105, was converted to its common logarithm and then plotted against the CMT [California mastitis test] score. The best estimate of the line of regression of milk 0. 24 hr. of age was Ywmt = 0. 352 + 21. 17 log10 (cells x 10-5) and for milk 25-48 hr. of age was Ywmt = 0. 231 + 1951 log10 (cell x 10-5). WMT scores decreased faster than did cell counts as the milk aged. The conversion of WMT score to cell count as originally suggested underestimated the cell count by about 38% and was even more unsuited for application to older milk.