Worm resistance

Parasites which are not killed by anthelmintics can become resistant. Possible causes of worm resistance are year-round dewormer treatments at regular intervals and underdosing of anthelmintics. With the year-round treatments animals were too frequently dewormed without checking what worms and how many worms were available.

Just a few anthelmintic drug classes are on the market and all classes show resistance. Especially for goats and sheeps resistance is a growing problem.

Process of parasitic resistance:

Process lifecycle parasitic worm resistance

 

Check the worm resistance after two weeks of deworming with the McMaster method. A reduction of less than 90-95% indicates resistance.

Go to the Fecal Egg Count Reduction (FECRT) calculation.

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