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The Electrical Conductivity of Bovine Milk in Mastitis Diagnosis

Abstract

The electrical conductivity (EC) of milk is mainly a function of the electrolyte concentration in the milk and therefore raised in mastitis. The present investigation was aimed at elaborating, if possible, a diagnostic model for screening purposes based on EC determinations and consistent with the diagnostic procedures and interpretations commonly used in laboratory milk diagnosis in the Nordic countries (Klastrup 1975). According to this diagnosis (here called reference diagnosis) cell numbers above 300,000/ml (cell count or the corresponding CMT-score) in foremilk quarter samples during the main part of the lactation period and significantly above the lowest value on within-udder comparison during late lactation are considered indicative of mastitis and bacteriological examinations are made when called for.

References

  • Björkenfeldt H, Isaksson A, Philips A-C: Konduk-tivitetsmätningar i mjölk och mastitdiagnostik. (Conductivity measurements in milk and the diagnosis of mastitis). Svensk vettidn. 1984,36, 523–527.

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  • Klastrup O: Scandinavian recommendations on examination of quarter milk samples. Proc. IDF Seminar on Mastitis Control, Reading 1975.

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Isaksson, A., Philips, A., Göransson, E. et al. The Electrical Conductivity of Bovine Milk in Mastitis Diagnosis. Acta Vet Scand 28, 455–457 (1987). https://doi.org/10.1186/BF03548616

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  • DOI: https://doi.org/10.1186/BF03548616