A survey to evaluate anthelmintic resistance of gastrointestinal stongyles in Iowa cow/calf operations

Authors

  • T. J. Engelken Veterinary Diagnostic and Production Animal Medicine, Iowa State University College of Veterinary Medicine, Ames, IA, 50011
  • M. J. Kimber Department of Biomedical Sciences, Iowa State University College of Veterinary Medicine, Ames, IA, 50011
  • T. A. Day Department of Biomedical Sciences, Iowa State University College of Veterinary Medicine, Ames, IA, 50011
  • S. S. Ubben Veterinary Diagnostic and Production Animal Medicine, Iowa State University College of Veterinary Medicine, Ames, IA, 50011
  • A. O'Connor Veterinary Diagnostic and Production Animal Medicine, Iowa State University College of Veterinary Medicine, Ames, IA, 50011
  • L. R. Ballweber Department of Microbiology, Immunology, and Pathology, Colorado State University College of Veterinary Medicine, Fort Collins, CO, 80523
  • P. K. Evans Veterinary Diagnostic and Production Animal Medicine, Iowa State University College of Veterinary Medicine, Ames, IA, 50011
  • R. D. Dewell Veterinary Diagnostic and Production Animal Medicine, Iowa State University College of Veterinary Medicine, Ames, IA, 50011
  • C. Wang Veterinary Diagnostic and Production Animal Medicine, Iowa State University College of Veterinary Medicine, Ames, IA, 50011

DOI:

https://doi.org/10.21423/aabppro20123930

Keywords:

Parasite resistance, small ruminants, sheep, beef cattle, goats, anthelmintics, qualitative PCR testing

Abstract

Parasite resistance, a widespread problem in small ruminants, is starting to appear with increased frequency in beef cattle populations. Reports of parasite resistance in cattle have surfaced in Australia, New Zealand, northern Europe, South America, and the United States. The objectives of this study were to determine whether parasite resistance to commonly used anthelmintics is present in Iowa cow/calf operations, attempt to identify factors that contribute to development of parasite resistance, and utilize qualitative PCR testing to determine which genera of parasites are associated with resistance.

Downloads

Published

2012-09-20

Issue

Section

Research Summaries 3