One method for preventing resistance to anthelmintic drugs is to breed sheep resistant to the internal parasites themselves. Based on research work undertaken by AgResearch over the past two decades, sheep breeders can now include this trait in their selection criteria.
WormFEC™ provides sheep breeders with the tools and advice required so they can select sheep resistant to internal parasites in their own breeding flocks. The service is provided in association with Sheep Improvement Limited (SIL).
Commercial farmers wishing to obtain rams showing enhanced resistance to internal parasites can ask for WormFEC™ tested rams from their breeders.