Reduction of egg reappearance period of cyathostomins in naturally infected horses after increasing doses of ivermectin in Brazil: a grim picture for sustainable parasite control

Curitiba, Paraná, Brasil: *Small strongyles (cyathostomins), the most prevalent internal parasites in horses, have become resistant to ivermectin 200µg/kg *The FEC was <83% efficacy *We tried 300 and 400µg/kg (double dose) *We suggest replacing ivermect

Reduction of egg reappearance period of cyathostomins in naturally infected horses after increasing doses of ivermectin in Brazil: a grim picture for sustainable parasite control https://t.co/wAWO0JIgm7