By Kathy Voth
Last week we shared an article about the problem of parasite resistance to worming medications and covered worming practices that may help or hurt resistance. FAMACHA© scoring is one of the tools available to help prevent resistance in your herd. It’s a test for barberpole worms (Haemonchus contortus) in your herd, and uses the symptoms of anemia that the worm can cause to help us pick out the animals that need to be treated. By treating only the animals that need it instead of the whole herd, we make better use of our wormers, and reduce the potential for creating resistant worms.