Antibodies against Staphylococcus aureus nuclease in bulk milk as an indicator of mastitis in dairy herds [cell count]
1980
Gudding, R. (Veterinaerinstituuttet, Oslo (Norway))
Titres of staphylococcal antinucleases and cell counts in bulk milk samples were compared as indicative criteria of the mastitis situation in dairy herds. The correlation coefficients between the prevalence rate of mastitis and the antinuclease titre and cell count, respectively, were of the same order of magnitude. The incidence of clinical mastitis showed a better correlation to the antinuclease titre than to the cell count. When cell counts and antinuclease titres were combined a more reliable selection of herds with a possible mastitis problem was achieved. The antinuclease test is consequently recommended as a supplement to cell counting when screening bulk milk.
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