Comparative clinical efficacy of fenbendazole and thiabendazole in feedlot heifers

Authors

  • Raymond L. Morter School of Veterinary Medicine, Purdue University, West Lafayette, Indiana 47907
  • Kevin R. Kazacos School of Veterinary Medicine, Purdue University, West Lafayette, Indiana 47907
  • Harold E. Amstutz School of Veterinary Medicine, Purdue University, West Lafayette, Indiana 47907

DOI:

https://doi.org/10.21423/bovine-vol1984no19p213-215

Keywords:

animal parasitic nematodes, Anthelmintics, beef cattle, benzimidazoles, DRUG THERAPY, fenbendazole, helminthoses, helminths, infections, nematode infections, parasites, parasitoses, thiabendazole, cestode infections

Abstract

Heifers shedding eggs of nematodes or Moniezia were treated with either 5 mg/kg fenbendazole (FBZ) or 110 mg/kg thiabendazole (TBZ). 7 days later only trichostrongyle eggs were found (in 2 of 91 FBZ-treated heifers and 10 of 93 TBZ-treated heifers). The feedlot performances (average daily weight gain) were 0.75, 0.82 and 0.81 in the FBZ, TBZ and control groups, resp., over 34 days. The overall incidence of respiratory disease was 84 of 324 heifers used and was about equal in all 3 groups. Mortality was 4, 2 and 3 in the FBZ, TBZ and control groups, resp. Neither anthelmintic improved heifer performance.

Cover image of the 19th Volume of the Bovine Practitioner: a vintage photo of the Iowa State Capitol in Des Moines

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Published

1984-11-01

How to Cite

Morter, R. L., Kazacos, K. R., & Amstutz, H. E. (1984). Comparative clinical efficacy of fenbendazole and thiabendazole in feedlot heifers. The Bovine Practitioner, 1984(19), 213–215. https://doi.org/10.21423/bovine-vol1984no19p213-215

Issue

No. 19 (1984 November)

Section

Articles