Journal of
Veterinary Medicine and Animal Health

  • Abbreviation: J. Vet. Med. Anim. Health
  • Language: English
  • ISSN: 2141-2529
  • DOI: 10.5897/JVMAH
  • Start Year: 2009
  • Published Articles: 387

Full Length Research Paper

Assessment of anthelmintic resistance in gastrointestinal nematodes of small ruminants, Dale district, Southern Ethiopia

Desie Sheferaw
  • Desie Sheferaw
  • School of Veterinary Medicine, Hawassa University, Ethiopia.
  • Google Scholar
Dejene Getachew
  • Dejene Getachew
  • School of Veterinary Medicine, Hawassa University, Ethiopia.
  • Google Scholar
Jemere Bekele
  • Jemere Bekele
  • School of Veterinary Medicine, Hawassa University, Ethiopia.
  • Google Scholar
Yifat Denbarga
  • Yifat Denbarga
  • School of Veterinary Medicine, Hawassa University, Ethiopia.
  • Google Scholar


  •  Accepted: 07 August 2013
  •  Published: 30 September 2013

Abstract

The anthelmintic resistance status of gastrointestinal nematodes of small ruminants owned by smallholder farmers in the Dale district, Southern Ethiopia, was investigated. A faecal egg count reduction test (FECRT) was conducted in traditionally managed and naturally infected goats and sheep. For this study, 60 sheep and 60 goats of both sexes, aged from 6 to 18 months, and with a faecal egg count (FEC) of more than 150 eggs/g of faeces were selected for the test from 5 neighboring kebeles. Both sheep and goats were grouped into four treatment groups: albendazole, tetramisole, ivermectin and control groups. In sheep, the percentage reduction in FECs (95% confidence intervals) for albendazole, tetramisole and ivermectin were 95.0% (86.5 to 98.2%), 97.5% (93.2 to 99.1%) and 96.7% (91.0 to 99.1%), respectively. In goats, the percentage reduction in FECs (95% confidence intervals) for albendazole, tetramisole and ivermectin were 96.6% (88.3 to 99.0%), 97.7% (90.6 to 99.4%) and 97.1% (91.0 to 99.1%), respectively. All the anthelmintics were found to be effective, but resistance to albendazole was suspected.  Based on the findings, it was concluded that development of anthelmintic resistance could be prevented by avoiding frequent dosing and under dosing, while strategic deworming should be practiced by both animal health workers and animal owners. 

 

Key words: Anthelmintics, resistance, faecal egg count reduction, small ruminants, Dale, Ethiopia.