Wormer Resistance: “The Need to Change”

By Hybu Cig Cymru – Meat Promotion Wales

The prevalence of wormer resistance in sheep flocks in the UK has risen sharply in recent years and results from the 2005 Wales “Worm Watch” project showed that some degree of wormer resistance exists on more than 80% of Welsh flocks. However, in most cases the levels of resistance found were relatively low which means that if changes are made to worming programmes now, most farms could still maintain effective worm control. This booklet aims to provide up to date information about wormer resistance and the strategies available to slow its progress. However, here is no magic formula which can be applied to all farms. Specific advice should always be sought from veterinary surgeons and sheep advisors.



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