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505.867.5567 - Hospital
505.867.5033 - Fax
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Monday - Friday
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Meddleton Equine
P.O. Box 939
Algodones, NM 87001
Blister beetle toxicosis can cause serious disease in horses that can lead to death. The causative agent, cantharidin, is a potent irritant found in the blister beetle. Alfalfa flowers attract the beetles and at harvest they may be incorporated into hay.
Continue ReadingWhile very rare, cases of Thelazia lacrymalis commonly known as the Eye Worm do occur, most often in the summer months. They are often noticed while a horse is being examined for another issue as many horses infected with Thelazia show no clinical symptoms whatsoever, other than the presence of these tiny worms in their eyes.
Continue ReadingThreadworms are generally found to cause problems in horse foals, donkeys and zebras. Threadworm infection is the first patent parasitic infection often observed in foals from dams who have not been dewormed. Transmammary Transmission most common – larvae are actually transmitted from mammary tissue of dam via mare's milk to foal where they then undergo mucosal migration in foal's small intestine and mature into adult worms by the time the foal is 8 – 14 days of age. This is why mares should be de-wormed in the month prior to their due date.
Continue ReadingRoundworms (aka Ascarids) are a common parasite of even well-managed young horses. These large, white worms in their adult form are sometimes passed in horse’s manure (often just after deworming) and are noticed because of their size and stark color. Adult Roundworms are the largest parasite that infects horses. Weanlings, yearlings and 2 year olds are commonly affected, although Roundworms are sometimes present in horses older than 2 years of age and geriatric horses are susceptible as immunity wanes with age.
Continue ReadingSmall Strongyles (aka Cyathostomes) are currently recognized as the most common equine parasite. Horses can harbor Small Strongyle worm loads in their gastrointestinal tract and show no outward symptoms whatsoever. The larval stages of these parasites are known to burrow into the walls of the small intestine, only emerging into the intestinal lumen at certain times of the year to molt into adult worms and produce eggs that would be recognized on fecal examination! Therefore, horses infected with Small Strongyles may or may not exhibit eggs on fecal exam when, in fact, they may actually be carrying a significant parasite population. Small Strongyles even have the ability to remain encysted in their larval stage for up to 3 years before emergence.
Continue ReadingHave you ever seen your horse itch his tail or rump on the fence or scratched your head in frustration over mysterious skin lesions that just don't seem to go away? You and your equine partner might be dealing with parasites! In this series of articles I'll explain the life cycles of the most common gastrointestinal parasites, how they can affect your horse and how to prevent and treat parasitic infestation.
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