Comparison of tilmicosin and gamithromycin for treatment of undifferentiated fever in backgrounded winter-placed feedlot calves

Authors

  • Joyce Van Donkersgoed Alberta Beef Health Solutions Inc., Box 307, Picture Butte, Alberta, TOK 1V0, Canada
  • John K. Merrill Elanco, Division Eli Lily Canada Inc., 150 Research Lane, Guelph, Ontario, NIG 4T2, Canada
  • Steve Hendrick Western College of Veterinary Medicine, Saskatoon, Saskatchewan S7N 5B4, Canada

DOI:

https://doi.org/10.21423/bovine-vol47no1p15-21

Keywords:

bovine respiratory disease, undifferentiated fever, tilmicosin, gamithromycin

Abstract

A study was conducted in Alberta, Canada utilizing 2 feedlots to compare clinical efficacy of tilmicosin to gamithromycin for the initial treatment of undifferentiated fever in backgrounded winter-placed feedlot calves. There were no significant differences (P>0.05) in undifferentiated fever relapse rates and crude case fatality or bovine respiratory disease/histophilus fatality rates between the 2 treatments. As a result, the cost-benefit was based on the difference in treatment cost between the 2 drugs. Using current drug costs and a treatment weight of 750 lb (340 kg), tilmicosin had an economic advantage of $2.23CAN per head over gamithromycin.

Cover image of Volume 47, No.1 of the Bovine Practitioner: a photo of Angus cattle grazing in a field of wildflowersalongside a muddy pool of water. In the background, some cattle are wading through the water and others are grazing on green fields that roll gently up to the horizon.

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Published

2013-02-01

How to Cite

Van Donkersgoed, J., Merrill, J. K., & Hendrick, S. (2013). Comparison of tilmicosin and gamithromycin for treatment of undifferentiated fever in backgrounded winter-placed feedlot calves. The Bovine Practitioner, 47(1), 15–21. https://doi.org/10.21423/bovine-vol47no1p15-21

Issue

Vol. 47, No. 1 (2013 Spring)

Section

Articles

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