Worms

vallin

vallin

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Ok so not the most pleasant topic but anywho...so I was grooming my mare yesterday and she decided to poop all over the yard, as per usual, but when she was finished (she like to air he bum with her tail in the air for a while after she's done) I noticed (or a least this is how it appeared to me) that a little white worm-very thin about 125mm long-crawled back in IYSWIM. Now i thoroughly checked her droppings and they were worm free (or at least there were no worms that could be seen with the naked eye like i did this one) and she is up to date on wormers and I had a worm count done when she moved yards in mid-jan and that was fine...so am I just panicking about nothing? or should I give her an extra wormer? (she's due in a month-she was wormed with equest just before I moved yards mid-jan) or somthing completely different?
So any suggestions welcome!
Thanks!
 
Pinworms. Very good article in this weeks H&H about them.
Can't scan the article in, but this quote comes from it.

"Does your horse have pinworms? What to look for.

1. A white-grey wormprotrudes from your horses back passage and re-enteres shortly afterwards.
2.Your horses may rub its tail and bite and scratch it's hindquarters.........."

The worm coming out is the adult female laying eggs according to the article.
 
Just googled and found something say similar, does the H&H article say how to treat?
Thanks!
V

LARGE INTESTINE


Figure 3.7. O.equi adult
Oxyuris equi (Pinworm)

Infection with the horse pinworm Oxyuris equi, is common – especially in stabled animals.

Morphology: Large white worms. Females may reach 10.0cm in length. Males are less than 1.0cm.

Prepatent period: 5 months.

Life cycle: Adult worms live in the caecum and colon. Adult females migrate to the anus to lay eggs on the skin surrounding the anus.This causes intense irritation. The L3 develop within the egg in 4-5 days.The eggs are contained within a sticky substance that dries out and crumbles, spreading 1000s of eggs which are rubbed off into the environment.They attach themselves to feeding troughs, walls and floors of stables from where they can easily be ingested. Once in the small intestine the larva is released from the egg and moves to the large intestine to complete the life cycle.The L4 develops within 10 days and the emerging L4s feed on the mucosa before moulting to the immature adult L5.

Pathogenesis: The feeding L4 larvae can cause small lesions within the intestinal mucosa. The major effect is irritation around the anus from the eggs.

Clinical signs: Parasites in the intestine rarely cause serious clinical signs.The main clinical sign associated with pinworm is itching and rubbing of the rump and tail head. The skin and underside of the tail should be regularly cleaned with a disposable cloth, combined with a high level of stable hygiene.
 
Sorry to say, it seems to be a vet job. That's what H&H say anyway. Needs lab tests to confirm.

The horse in the article was wormed, his skin was WASHED with an injectable wormer. His stable was power washed after being thoroughly mucked out.
 
Thank you, just been googling and it seems all the places I have looked (I like to back up sources!) say it is a vet job to confirm, but then wormers containing ivermectin,
moxidectin, fenbendazole and pyrantel pamoate, although resistance to
ivermectin has been reported in some areas, to treat. Plus good muck out of the stable and disinfect (good job she's going out 24/7 next week so will be done as part of that anyway!) and wash the anal area thoroughly and keep an eye on underside of tail.

Few, not quite as dramatic as I had been imagining! Thanks for your help! V
 
Absolutely, not too dramatic and you have all the right info. The stable and surfaces cleaning is one of the most important things. They are hard to stop reinfecting so good luck with that.

We get them sent to the lab for identification quite often, but really nothing to worry about, though unpleasant.
 
Cool Thanks Managed to stop panicking now! I'm sure wormers and worm counts are supposed to stop this sort of thing! Grrr! Oh well!
 
My friend's old horse, who I ride and is the grand old age of 30, had to move stables because he demolished a wooden stable with his Pinworm problem, which had been diagnosed, but nothing was touching!

His worm counts were low and he had been wormed regularly, but as there is now so much resistance to this little bu&&er, it was to no avail.

Eventually the course of action, following the Vet's advise, was a 5 day course of Panacur Guard, then she had to wait 2 or 3 weeks and then give him a double or triple dose of Ivermectin (sorry cannot remember this bit exactly, however he is a 15.3 substantial solid type), as well as applying, using a hoof oil brush, a topical mix of Ivermectin ...... she had to ensure he had special brushes for the bum area and thoroughly disinfect his stable with Virkon!

You should have seen the state of him Bum beforehand it was horrid and he was soooooo sore.

This was a few weeks ago and all did seem to be ok, however when I saw him yesterday, he had started to rub again!! I do wonder whether Ivermectin was the best chemical, as I am sure I read there was resistance to this as well!?

Don't panic, as it will not harm him, however the scratching may!
 
There is a known resistance to Ivermectin so I'm going to use a wormer that has one of the other chemicals in instead. She's not itchy or anything, so hopefully it's in the early stages and a good wash, wormer and disenfectant should do the trick. V
 
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