Evaluation of Keto-Test in Urine and Milk for the Detection of Subclinical Ketosis in Periparturient Holstein Dairy Cattle

Authors

  • Tera M. Osborne Department of Population Medicine, University of Guelph, Guelph, Ontario, Canada N1G 2W1
  • Ken E. Leslie Department of Population Medicine, University of Guelph, Guelph, Ontario, Canada N1G 2W1
  • Todd Duffield Department of Population Medicine, University of Guelph, Guelph, Ontario, Canada N1G 2W1
  • Christina S. Petersson Department of Population Medicine, University of Guelph, Guelph, Ontario, Canada N1G 2W1
  • Jeromy Ten Hag Department of Population Medicine, University of Guelph, Guelph, Ontario, Canada N1G 2W1
  • Yoshihiro Okada Sanwa Kagaku Kenkyusho Co. Ltd., Nagoya, Japan

DOI:

https://doi.org/10.21423/aabppro20025048

Keywords:

Subclinical ketosis, economic loss, periparturient disease, parturition, Keto-Test

Abstract

Subclinical ketosis causes significant economic loss to producer by decreasing milk production and increasing risk of periparturient disease. The dairy industry needs a cowside test to monitor periparturient dairy cattle for subclinical ketosis. The objective of this study was to determine the sensitivity, specificity and predictive values of the semi-qualitative Keto-Test in periparturient dairy cattle. This test was previously evaluated (Geishauser et al, J Dairy Sci, 2000) and shown to have a sensitivity and specificity of 80% and 76%, respectively, using a cut-point of 100 μmol/L betahydroxybutyrate (BHBA) or greater as a positive. However, in that evaluation tests were not performed prior to parturition or in the immediate periparturient period.

Cover image of the 35th Conference Proceedings: Holstein cows standing in a row at a fence. A small group of cattle are bunched together in a pen. Yellow background.

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Published

2002-09-26

Issue

2002

Section

Research Summaries - Dairy II

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