Results of anti-mortem screening methodology to predict prescribed drug withholding periods for flunixin and ceftiofur in heifers

Authors

  • R. Salter Charm Sciences, Inc. 659 Andover St. Lawrence, MA USA 01843
  • S. Jones U. S. Meat Animal Research Center, Clay Center, NE, 68933-0166
  • J. Wells U. S. Meat Animal Research Center, Clay Center, NE, 68933-0166
  • D. Griffin University of Nebraska Lincoln, Clay Center, NE, 68933
  • K. Shuck University of Nebraska Lincoln, Clay Center, NE, 68933
  • T. Goldsmith University of Minnesota, College of Veterinary Medicine, Center for Animal Health and Food Safety Minneapolis, MN, 55455
  • P. Rapnicky University of Minnesota, College of Veterinary Medicine, Center for Animal Health and Food Safety Minneapolis, MN, 55455

DOI:

https://doi.org/10.21423/aabppro20123934

Keywords:

cow-side test, drug residues, inhibition tests, flunixin, ceftiofur-metabolites, serum sample

Abstract

A simple, cow-side test for the presence of drug residues in live animals would be useful for drug residue avoidance programs. Simple inhibition tests used at slaughter do not detect some drug tolerance concentrations such as those for flunixin and ceftiofur-metabolites. This experiment evaluated an adaptation of a beta-lactam and flunixin lateral flow (LF-modification) test for use with urine and serum samples from treated heifers and determined the ability of the test to predict the labeled slaughter withhold of ceftiofur and flunixin.

Cover image of the 45th Conference Proceedings: Three black-and-white cows lounge in a spring field. Yellow background.

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Published

2012-09-20

Issue

2012

Section

Research Summaries 3