Parasite Control and Resistance

Dewormers have been utilized indiscriminately to control horse parasites for over 40 years. There are three classes of dewomers (anthelmintic classes) for nematode control in horses: benzimidazoles (fenbendazole, oxibendazole), tetrahydropyrimidines (pyrantel) and macrocyclic lactones (ivermectin, moxidectin). Resistance is a genetic Read More …