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  1. #1
    Join Date
    Jun. 10, 2009
    Location
    NH
    Posts
    536

    Default got a puppy! What do I need to know about dewormers/eating horse poop?

    Our puppy is now 5 months old and venturing down to the barn with me to do barn chores. The alluring manure pile has caught her attention, and while I try to get her away from it, she has grabbed a bite or two.

    I recall reading about ivermectin and dogs on the board. I follow a deworming schedule based on my vet's recs and regular fecal checks.

    While I am diligent about throwing away the tubes in a place she could not get into them, what about the drugs coming out in the manure and her sneaking a bite from the manure pile afterwards?

    Thanks!



  2. #2
    Join Date
    Aug. 15, 2009
    Location
    Knoxville, TN
    Posts
    2,078

    Default

    I have never gotten a definitive answer on that. I would discourage poop eating, but I haven't heard of ivermectin toxicity from a dog eating tainted poop. I did ask about it at the vet school, after my dog had ivermectin poisoning, and they also said it was theoretically possible, but they had never heard of a case.



  3. #3
    Join Date
    Mar. 9, 2006
    Posts
    1,830

    Default

    Some dogs have a mutation which affects their ability to clear ivermectin and several other medications from their systems. Consequently, they overdose much more easily than other dogs. Herding breeds are most likely to have this mutation, but I've heard of it in Jack Russells and other breeds not normally associated with the problem. THERE IS A TEST FOR THE MUTATION. Just get the darned test instead of speculating on internet lore about whether having white feet puts the dog at risk, etc.

    One of my friends spent several thousand dollars on vet care after her dog licked up a dribble of wormer which had landed on the barn floor. The test would have been far cheaper; she would have taken extra precautions around this dog had she been aware of the danger.



  4. #4
    Join Date
    Dec. 2, 2004
    Location
    Eastern Ontario, Canada
    Posts
    1,472

    Default

    I've read that there is a trace of ivermectin in horse poop for up to 10 days after deworming. It peaks at 48 hours.



  5. #5
    Join Date
    Jul. 31, 1999
    Posts
    3,176

    Default

    If you are really concerned, there is a product called Forbid that you can feed to the horses which will make their poop taste icky. Maybe a bite or two one time would be enough to deter your pup, depending on his personality? You would have to be able to feed it to any horse whose poop he could eat, which may be tough in a boarding situation? Probably not the best solution, however. I do know that some dewormer is expelled in feces, however, as it can have a detrimental effect on dung beetles, etc.



  6. #6
    Join Date
    Sep. 20, 2010
    Location
    United States of Absurdistan
    Posts
    1,736

    Default

    Heartguard is made of ivermectin and pyrantel, the two most common horse de wormers. The chances that your pup will od from munching poop are low, but I would talk to the vet about the test if you a really concerned.

    Here's their website
    http://heartgard.us.merial.com/

    LBR
    I reject your reality, and substitute my own- Adam Savage

    R.I.P Ron Smith, you'll be greatly missed



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