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Discussion on Senior Warmblood with parasites
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New Member:
Peachcub
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Posted on Saturday, Feb 26, 2005 - 8:13 am:
I have an old (27) warmblood gelding who has been on bimonthly ivermectin paste wormer for the past year. He had colic surgery about 10 years ago (cecum removed due to impaction). He seems to always have a itchy butt - I gave him Equimax last month and still yesterday, my barn manager noticed small (about 1 cm) white worms around his anus when he pooped. What am I doing wrong?? I have about 15 horses who are all on the same worming program and am concerned that I have missed something. Thanks for your advice!
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Moderator:
DrO
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Posted on Sunday, Feb 27, 2005 - 8:28 am:
Welcome Tom,
The only parasite that has a life cycle that includes coming out around the anus is the pinworm and only the female does this and she is much larger than what you describe for more see, Equine Diseases » Colic and GI Diseases » Parasites and Worms » Pinworms (Oxyuris). So the first possibility is that this is not intestinal parasites but some other critter: ask to have some collected and put in alcohol. They can be taken to your vet for identification. I have often been presented with all kinds of animate and inanimate things called worms that were of no concern.
Next you need to take some fecals to your veterinarian to see if there are signs of other parasites in your horses. If your horses are positive and you have been using ivermectin regularly you need to evaluate how you are giving it to them, how much you are giving them, and how often you are giving it to them. See the article on Overview for more on each of these.
DrO
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Member:
Albionsh
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Posted on Sunday, Feb 27, 2005 - 4:08 pm:
From your short description I was thinking you were talking about the small moving rectangular egg segments seen near the anus of an animal with tapeworms. Dr. O?
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Member:
Peachcub
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Posted on Sunday, Feb 27, 2005 - 7:12 pm:
Thanks for the prompt replies. The thing I notice the most about the "worms" is that around his anus is a white pastey-type substance sometimes. What I've seen may be egg segments - I'm just not sure. I have used the ivermectin very regulary (every other month) for over 18 months. I'm afraid that I may have missed out on covering for tapeworms though. I thought I was doing the right thing, but evidently I've been un-informed. I'm learning alot here! Thanks!!
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Moderator:
DrO
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Posted on Sunday, Feb 27, 2005 - 10:39 pm:
Nancy is confusing the appearance of the tape worm segments (proglottids) seen on the anus of dogs and cats (dyplidium) with the tape worm of horses. These proglottids have a period of slight mobility prior to drying and breaking open releasing the eggs. Horses don't pass whole proglottids as seen in dogs and cats. In horses the proglottids have degenerated by the time they pass so only the microscopic triangular eggs are passed.
That said, beginning to deworm for tapes is important for Tom. What his barn manager found and the itchness are still a mystery at this time.
DrO
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Member:
Frances
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Posted on Monday, Feb 28, 2005 - 5:26 am:
Surely the Equimax Tom dewormed with last month should have taken care of any tapes?
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Moderator:
DrO
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Posted on Monday, Feb 28, 2005 - 7:38 am:
Yes, if given at a appropriate dose and it was all gotten in the horse.
DrO
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