Macrocyclic lactone resistance on new grass leys — the putative role of accidental ‘dose-and-move’ strategies due to use of persistent macrocyclic lactone products

James Patrick Crilly, Neil D Sargison

Research output: Contribution to journalArticlepeer-review

Abstract

Nematodirosis and teladorsagiosis/trichostrongylosis were detected in 8-week old lambs on a Scottish lowland farm and treated with oral ivermectin. A drench check identified treatment failure in some pastures but not others. Ivermectin resistance was confirmed by faecal egg count reduction test. Grazing history suggested treatment of ewes with injectable moxidectin in the autumn and oral moxidectin post-lambing and movement onto clean grazing played a role in the selection for macrocyclic lactone resistance on this farm.
Original languageEnglish
Pages (from-to)174-178
JournalLivestock
Volume21
Issue number3
Early online date12 May 2016
DOIs
Publication statusE-pub ahead of print - 12 May 2016

Keywords

  • sheep
  • nematodes
  • anthelmintic resistance
  • selection

Fingerprint

Dive into the research topics of 'Macrocyclic lactone resistance on new grass leys — the putative role of accidental ‘dose-and-move’ strategies due to use of persistent macrocyclic lactone products'. Together they form a unique fingerprint.

Cite this