An evaluation of arrival metaphylaxis with enrofloxacin compared to tulathromycin in feedlot cattle at high risk of developing bovine respiratory disease in Mexico

Authors

  • Luis O. Burciaga-Robles Feedlot Health Management Services, A Division of TELUS Agriculture Solutions Inc., P.O. Box 140, Okotoks, Alberta T1S 2A2
  • Christopher McMullen Feedlot Health Management Services, A Division of TELUS Agriculture Solutions Inc., P.O. Box 140, Okotoks, Alberta T1S 2A2
  • Ana Bras Feedlot Health Management Services, A Division of TELUS Agriculture Solutions Inc., P.O. Box 140, Okotoks, Alberta T1S 2A2
  • Mariana Guerra-Maupome Feedlot Health Management Services, A Division of TELUS Agriculture Solutions Inc., P.O. Box 140, Okotoks, Alberta T1S 2A2
  • Rodolof A. Nava-Gaspar Feedlot Health Management Services, A Division of TELUS Agriculture Solutions Inc., P.O. Box 140, Okotoks, Alberta T1S 2A2
  • Ryan D. Rademacher Feedlot Health Management Services, A Division of TELUS Agriculture Solutions Inc., P.O. Box 140, Okotoks, Alberta T1S 2A2
  • Sherry J. Hannon Feedlot Health Management Services, A Division of TELUS Agriculture Solutions Inc., P.O. Box 140, Okotoks, Alberta T1S 2A2
  • Victor E. Mercado-Talamantes Feedlot Health Management Services, A Division of TELUS Agriculture Solutions Inc., P.O. Box 140, Okotoks, Alberta T1S 2A2
  • Calvin W. Booker Feedlot Health Management Services, A Division of TELUS Agriculture Solutions Inc., P.O. Box 140, Okotoks, Alberta T1S 2A2

DOI:

https://doi.org/10.21423/bovine-vol56no1p53-59

Keywords:

Baytril Max formula L.A., Draxxin, shipping fever, flouroquinolone, beef

Abstract

 

In this large-pen commercial field trial, mixed beef-breed bulls and heifers were randomly allocated at feedlot arrival to 1 of 2 experimental groups: ENRO or TULA. Animals in the ENRO group (10 multi-pen lots; 2037 animals) received a subcutaneous injection of enrofloxacin at a dosage of 3.4 mg/lb (7.5 mg/kg) body weight once at allocation. Animals in the TULA group (10 multi-pen lots; 2036 animals) received a subcutaneous in­jection of tulathromycin at a dosage of 1.1 mg/lb (2.5 mg/kg) body weight once at allocation. Study animals were housed by experimental group in commercial feedlot pens and fol­lowed from allocation until slaughter. There were no statisti­cal differences detected in any of the animal health or feedlot performance outcome variables between the experimental groups at the P < 0.050 level. Given the lack of detectable sta­tistical differences in animal health and feedlot performance outcome variables in the current study, the relative cost effec­tiveness of metaphylaxis programs utilizing enrofloxacin or tulathromycin in mixed beef-breed bulls and heifers at high risk of developing bovine respiratory disease should be depen­dent on the relative cost of each program, as well as any intan­gible attributes such as syringability, storage requirements, potential for antimicrobial resistance, etc.

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Published

2022-10-19

How to Cite

Burciaga-Robles, L. O., McMullen, C., Bras, A., Guerra-Maupome, M., Nava-Gaspar, R. A., Rademacher, R. D., Hannon, S. J., Mercado-Talamantes, V. E., & Booker, C. W. (2022). An evaluation of arrival metaphylaxis with enrofloxacin compared to tulathromycin in feedlot cattle at high risk of developing bovine respiratory disease in Mexico. The Bovine Practitioner, 56(1), 53–59. https://doi.org/10.21423/bovine-vol56no1p53-59

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