Activities per year
This study was performed to investigate the efficacy of a morantel-abamectin combination for the treatment of macrocyclic lactone-resistant Parascaris spp. infections in foals. Foals on five properties with a Parascaris faecal egg count (FEC) >50 eggs per gram were used to estimate the FEC reduction (FECR) and efficacy of the anthelmintic combination. On all properties, resistance to ivermectin and abamectin was present, and the Parascaris FECR in foals administered the morantel-abamectin combination was >99%, indicating that this combination effectively controlled ML-resistant parasites.