Comparison of Short-Term Health and Performance Effects Related to Prophylactic Administration of Tulathromycin versus Tilmicosin in Long-Hauled, Highly Stressed Beef Stocker Calves

Authors

  • J. S. Nickell Department of Diagnostic Medicine I Pathobiology, Kansas State University, Manhattan, KS 66506
  • B. J. White Department of Clinical Sciences, Kansas State University, Manahattan, KS 66506
  • R. L. Larson Department of Clinical Sciences, Kansas State University, Manahattan, KS 66506
  • D. A. Blasi Department of Animal Sciences and Industry, Kansas State University, Manhattan, KS 66506
  • D. G. Renter Department of Diagnostic Medicine I Pathobiology, Kansas State University, Manhattan, KS 66506

DOI:

https://doi.org/10.21423/aabppro20084407

Keywords:

Bovine respiratory disease, BRD, antimicrobial, feedlot, metaphylactic drug, tilmicosin, tulathromycin

Abstract

Bovine respiratory disease (BRD) is the most common disease condition in both the stocker and feedlot stages of beef production. This syndrome causes economic loss in the form of treatment costs, loss of growth performance, decreased quality grade, and higher mortality risk. Metaphylactic antimicrobial therapy upon arrival to a feedlot facility has been intensely studied and repeatedly shown to be a cost-effective practice inĀ  many production settings. Two approved metaphylactic drugs, tilmicosin and tulathromycin, are members of the macrolide class of antibiotics. The stocker segment of the beef industry is traditionally a grower phase for young, lightweight calves prior to their entry into a feedlot. However, stocker calves are on feed for a much shorter duration than calves in the finishing period in feedlots. Therefore, maintaining a high level of health and growth performance is imperative. The objective of this research was to determine if health and performance differences were present when comparing a longer-acting (tulathromycin) or shorter-acting (tilmicosin) antimicrobial administered to beef stocker calves at arrival.

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Published

2008-09-25

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Section

Research Summaries

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