Join Date: May 2009
Location: Winnipeg, Manitoba, Canada
We used ivermection almost constantly due to it being virtually the only product available to us. Occasionally we use pyrantel or moxidectin. To be perfectly honest, until recently, we didn't know much about appropriate deworming programs and just used ivermectin as I stated it was virtually the only dewormer available to us.
I could pretend I know what your talking about with fecal egg counts, but I really don't, so I suppose I can cross my fingers and hope that one of our vets in the area has a clue. Typically we deworm about 2-3 times a year, in April, July and October. Last year, we moved the horses to a boarding facility and she seemed to know better so she had us dose Eve with moxidectin immediately, with another dose following two weeks later. I believe after that Eve was dewormed with ivermectin every two months until fall, with a dose of pyrantel right after the moxidectin treatments.
As for underdosing, for any horses we have over 1,000lbs, we give them a full syringe. We tip their heads, all our girls are good, and absolutely minimal wormer is lost. We have never had an obvious worm problem before, both to physically look at the animal or to observe their manure. We use a weight tape everytime we deworm, and I am the one that takes their weight everytime to give ourselves a better consistancy.
I hope God tells her to smash her computer with a sledgehammer.