Prevalence of multi drug antimicrobial resistance in Mannheimia haemolytico isolated from high-risk Stocker cattle at arrival and two weeks after processing

Authors

  • E. Snyder Food Animal Health and Management Program, Department of Population Health, University of Georgia College of Veterinary Medicine, Athens, GA 30602
  • B. Credille Food Animal Health and Management Program, Department of Population Health, University of Georgia College of Veterinary Medicine, Athens, GA 30602
  • R. Berghaus Food Animal Health and Management Program, Department of Population Health, University of Georgia College of Veterinary Medicine, Athens, GA 30602
  • S. Giguere Department of Large Animal Medicine, University of Georgia College of Veterinary Medicine, Athens, GA 30602

DOI:

https://doi.org/10.21423/aabppro20173339

Keywords:

Bovine respiratory disease, BRD, beef cattle, Mannheimia haemolytica, pathogen, antimicrobial resistance

Abstract

Bovine respiratory disease (BRD) is the leading cause of morbidity and mortality in North American beef cattle. Mannheimia haemolytica (Mh) is the bacterial pathogen most frequently isolated from cattle with BRD and the prevalence of antimicrobial resistance in this pathogen has been increasing. Administration of antimicrobials to prevent BRD is commonplace in stocker cattle. Our objectives were to determine the prevalence of Mh isolated from the nasopharynx of high-risk stocker cattle at arrival and at resampling 10 to 14 days later, and second, to determine the prevalence of antimicrobial resistant Mh at these same time points.

Cover image of the 50th Conference Proceedings: Text of "AABP Annual Conference" with the AABP logo superimposed over an interlocking 50. Yellow background.

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Published

2017-09-14

Issue

2017

Section

Research Summaries