Drench resistance and sheep worm control
Primefact Number: 478 Edition: Second edition Released/reviewed: Feb 2011
Internal parasites are a major problem of Australian sheep. Anthelmintics have been the mainstay of sheep worm control, but their role is increasingly threatened by resistance in the target parasite species. There have been no enduring solutions to the problem of anthelmintic resistance, and the problem is getting worse.
One option, perhaps the only option, is to sidestep the problem by significantly reducing reliance on drug-based worm control. This Primefact discusses:
- Modern anthelmintics – a two-edged sword
- Time line – drenches and drench resistance in Australia
- Low rainfall areas and drench resistance
- The problem – solve or sidestep?
- Managing drench resistance
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