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Analysis of 20 Drench Resistance Tests on 19 beef cattle farms in the Agricultural Regions of WA
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.
|Contract No.||Title||Start date||End date||Funding type|
A re-evaluation of worm control and anthelmintic resistance on beef cattle properties in Western Australia
This page was last updated on 05/07/2018
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