New and better protocols for managing parasites in horses
Many horse barn managers and horse owners are relying on old worming strategies that assume all worms are bad, all horses are equally susceptible, and all horses should be wormed every eight weeks. One result of this approach is that many common worm medications have become ineffective through overuse, and even the newer doses—Ivermectin and Moxidectin—are showing early signs of pest resistance.
The Penn State Parasite Project educates owners and managers about the variable immunity among horses and differences among them in their tendency to shed small strongyle eggs—the truth is that 80 percent of the strongyle eggs are shed by only 20 percent of horses, and owners and barn managers should learn how to identify which horses are high shedders and which ones shed very little.
This 38-slide PowerPoint is a clear, easy-to-follow guide to improved parasite management and the strategic use of worm medications.