Toward a better understanding of upper respiratory tract bacterial colonization in neonatal beef calves

Authors

  • C. Sowers Clayton Livestock Research Center, New Mexico State University, Clayton, NM 88415
  • M. Smithyman Clayton Livestock Research Center, New Mexico State University, Clayton, NM 88415
  • J. Loy Nebraska Veterinary Diagnostic Center, University of Nebraska-Lincoln, Lincoln, NE 68583
  • G. Duff Clayton Livestock Research Center, New Mexico State University, Clayton, NM 88415
  • J. Richeson Department of Agricultural Sciences, West Texas A&M University, Canyon, TX 79106
  • S. Capik Tumbleweed Veterinary Services, PLLC, Amarillo, TX 79118

DOI:

https://doi.org/10.21423/aabppro20238938

Abstract

Bovine respiratory disease (BRD) is one of the most costly dis­ease complexes to the beef industry. Bacterial pathogens asso­ciated with BRD include Mannheimia haemolytica (MH), Histoph­ilus somni (HS), Mycoplasma bovis (MB) and Pasteurella multocida (PM). However, the source and timing of when these bacterial pathogens colonize in the upper respiratory tract of neonates is poorly understood. The objective of this study was to evaluate the bacteria and viruses present in the upper respiratory tract of neonatal beef calves immediately following parturition and for the first 24 hours of life.

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Published

2024-05-10

Issue

No. 56 (2023): 2023 Annual Conference Proceedings

Section

Research Summaries