Publications

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macrocyclic lactone-resistant parascaris equorum on stud farms in canada and effectiveness of fenbendazole and pyrantel pamoate.the aims of studies in 2002 and 2003 on three farms with 76 foals naturally infected with parascaris equorum were to (i) identify if the nematode was resistant to ivermectin and moxidectin, and (ii) confirm the effectiveness of fenbendazole and pyrantel pamoate for the parasite. twelve clinical trials, each with a fecal egg count reduction test, were conducted on two thoroughbred and one standardbred farms in southwestern ontario, canada. in each trial, parascaris eggs/g feces were estimated for ...200716962243
identification of foals infected with parascaris equorum apparently resistant to ivermectin.during september 2002, routine fecal examinations performed on 16 thoroughbred foals residing on a farm outside toronto, ontario, canada, revealed low to moderate numbers of parascaris equorum eggs in feces from 9 of the 16. all foals were then treated with ivermectin at a dose of 220 to 280 microg/kg (100 to 127 microg/lb), p.o., and fecal egg counts were repeated 12 days later. fecal p. equorum egg counts increased between the first and second fecal examination in 7 foals, were unchanged in 1, ...200312930086
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