Sensitivity and specificity of a hand-held milk electrical conductivity meter compared to the California mastitis test for mastitis in dairy cattle

Veterinary Journal

Volumn 196, Issue 1, 2013, Pages 98-102

  Fosgate, G T ^a   Petzer, I M ^a   Karzis, J ^a  

^a UNIVERSITY OF PRETORIA   (South Africa)

Author keywords

Bayesian; Dairy cow; Mastitis; Sensitivity; South Africa; Specificity

Indexed keywords

ARTICLE; BACTERIUM ISOLATION; BOVINE MASTITIS; CALIFORNIA MASTITIS TEST; CELL COUNT; COAGULASE NEGATIVE STAPHYLOCOCCUS; CONTROLLED STUDY; DAIRY CATTLE; DIAGNOSTIC ACCURACY; DIAGNOSTIC TEST ACCURACY STUDY; ELECTRIC CONDUCTIVITY; ELECTRIC RESISTANCE; INTERMETHOD COMPARISON; MATHEMATICAL MODEL; MILK; NONHUMAN; SCREENING TEST; SENSITIVITY AND SPECIFICITY; SOMATIC CELL; STAPHYLOCOCCUS AUREUS; STREPTOCOCCUS AGALACTIAE;

ANIMALS; BACTERIA; BAYES THEOREM; CATTLE; CELL COUNT; DAIRYING; ELECTRIC CONDUCTIVITY; FEMALE; MASTITIS, BOVINE; MILK; PREVALENCE; SENSITIVITY AND SPECIFICITY; SOUTH AFRICA;

BACTERIA (MICROORGANISMS); BOS; STAPHYLOCOCCUS; STAPHYLOCOCCUS AUREUS; STREPTOCOCCUS AGALACTIAE;

EID: 84875582939     PISSN: 10900233     EISSN: 15322971     Source Type: Journal    
DOI: 10.1016/j.tvjl.2012.07.026     Document Type: Article

References (26)

1. Barkema H.W., Schukken Y.H., Lam T.J., Galligan D.T., Beiboer M.L., Brand A. Estimation of interdependence among quarters of the bovine udder with subclinical mastitis and implications for analysis. Journal of Dairy Science 1997, 80:1592-1599.
2. Dohoo I.R., Smith J., Andersen S., Kelton D.F., Godden S. Diagnosing intramammary infections: Evaluation of definitions based on a single milk sample. Journal of Dairy Science 2011, 94:250-261.
3. du Toit, F., 2009. Results of Performance Testing During the Last Six Test Years 2002/2003-2007/2008. National Milk Recording and Improvement Scheme Newsletter 14. (accessed 31 May 2011). http://www.agripromo.co.za/content_file/lnrarc_pdf_17197.pdf.
4. Emanuelson U., Olsson T., Holmberg O., Hageltorn M., Mattila T., Nelson L., Astrom G. Comparison of some screening tests for detecting mastitis. Journal of Dairy Science 1987, 70:880-887.
5. Fernando R.S., Rindsig R.B., Spahr S.L. Electrical conductivity of milk for detection of mastitis. Journal of Dairy Science 1982, 65:659-664.
6. Fosgate G.T., Scott H.M., Jordan E.R. Development of a method for Bayesian nonparametric ROC analysis with application to an ELISA for Johne's disease in dairy cattle. Preventive Veterinary Medicine 2007, 81:178-193.
7. Fosgate G.T., Urdaz-Rodriguez J.H., Dunbar M.D., Rae D.O., Donovan G.A., Melendez P., Dobek G.L., Alleman A.R. Diagnostic accuracy of methods for detecting Anaplasma marginale infection in lactating dairy cattle of Puerto Rico. Journal of Veterinary Diagnostic Investigation 2010, 22:192-199.
8. Henningsson M., Ostergren K., Dejmek P. The electrical conductivity of milk - The effect of dilution and temperature. International Journal of Food Properties 2005, 8:15-22.
9. Hovinen M., Pyorala S. Invited review: Udder health of dairy cows in automatic milking. Journal of Dairy Science 2011, 94:547-562.
10. Mansell P.D., Seguya A. The use of a hand-held conductivity meter for the diagnosis of subclinical mastitis in dairy cows during late lactation. New Zealand Veterinary Journal 2003, 51:21-25.
11. MPO, 2009. LactoData. In: Statistics, vol. 12. The Dairy Mail. (accessed 2 June 2011). http://www.dairyconnect.co.za/.
12. MPO, 2010. LactoData. In: Statistics, vol. 13. The Dairy Mail. http://www.dairyconnect.co.za/ (accessed 2 June 2011).
13. Munem M.A., Foulis D.J. Calculus with Analytic Geometry 1984, Worth Publishers, New York, NY, pp. 338-342.
14. Nielen M., Deluyker H., Schukken Y.H., Brand A. Electrical conductivity of milk: Measurement, modifiers, and meta analysis of mastitis detection performance. Journal of Dairy Science 1992, 75:606-614.
15. Norberg E., Hogeveen H., Korsgaard I.R., Friggens N.C., Sloth K.H., Lovendahl P. Electrical conductivity of milk: Ability to predict mastitis status. Journal of Dairy Science 2004, 87:1099-1107.
16. Petzer I.M., Karzis J., Watermeyer J.C., van der Schans T.J., van Reenen R. Trends in udder health and emerging mastitogenic pathogens in South African dairy herds. Journal of the South African Veterinary Association 2009, 80:17-22.
17. Pyorala S. Indicators of inflammation in the diagnosis of mastitis. Veterinary Research 2003, 34:565-578.
18. Schalm O.W., Noorlander D.O. Experiments and observations leading to development of the California mastitis test. Journal of the American Veterinary Medical Association 1957, 130:199-204.
19. Schukken Y.H., Wilson D.J., Welcome F., Garrison-Tikofsky L., Gonzalez R.N. Monitoring udder health and milk quality using somatic cell counts. Veterinary Research 2003, 34:579-596.
20. Steeneveld W., van der Gaag L.C., Ouweltjes W., Mollenhorst H., Hogeveen H. Discriminating between true-positive and false-positive clinical mastitis alerts from automatic milking systems. Journal of Dairy Science 2010, 93:2559-2568.
21. Toft N., Jorgensen E., Hojsgaard S. Diagnosing diagnostic tests: Evaluating the assumptions underlying the estimation of sensitivity and specificity in the absence of a gold standard. Preventive Veterinary Medicine 2005, 68:19-33.
22. Ukoumunne O.C. A comparison of confidence interval methods for the intraclass correlation coefficient in cluster randomized trials. Statistics in Medicine 2002, 21:3757-3774.
23. Viguier C., Arora S., Gilmartin N., Welbeck K., O'Kennedy R. Mastitis detection: Current trends and future perspectives. Trends in Biotechnology 2009, 27:486-493.
24. Walsh K.P. A report on the prevalence of clinical mastitis and the somatic cell distribution associated with machine milking in a one-sided milking parlor. South African Journal of Animal Science 1985, 15:173-175.
25. Wilson D.J., Gonzalez R.N., Das H.H. Bovine mastitis pathogens in New York and Pennsylvania: Prevalence and effects on somatic cell count and milk production. Journal of Dairy Science 1997, 80:2592-2598.
26. Youden W.J. Index for rating diagnostic tests. Cancer 1950, 3:32-35.