Is It Normal To See Worms In Poop After Deworming?
Every horse will come into contact with parasites during their lifetime. This includes worms, and it is normal for horses to carry a small number of worms most of the time.
How Long After Worming Horse Are Worms Expelled For?
After you administer a dewormer to your horse, there will be a short period of time – from hours up to a couple of days – before it begins to take effect.
So, as we’ve learned, some horses may expel worms for three to four days after worming. How long after worming horse are worms expelled for depends on how high the worm burden of the horse was before worming.