A re-evaluation of worm control and anthelmintic resistance on beef cattle properties in Western Australia
| Project start date: | 01 November 2008 |
| Project end date: | 16 December 2011 |
| Publication date: | 21 December 2011 |
| Project status: | Completed |
| Livestock species: | Grassfed cattle, Grainfed cattle |
| Relevant regions: | Western Australia |
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Summary
A series of drench resistance tests in cattle using the macrocyclic lactones, benzimidazole and levamisole groups in southern WA are reported here. The tests have identified:
Resistance in Cooperia oncophora to ivermectin on 63% of farms tested.
Resistance in Ostertagia ostertagii to benzimdizole and levamisole on 50% and 63% respectively of farms tested.
Resistance in Cooperia oncophora to ivermectin using pour on application at Day 14 and Day 28 on 50% and 37.5% of farms respectively.
Resistance in Ostertagia ostertagii to ivermectin pour on at Day 14 and Day 28 on 20% and 37.5 % of farms.
More information
| Project manager: | Johann Schroder |
| Primary researcher: | Department of Primary Ind Regional |
