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GI/Nutritional Disorders > Equine GI Parasites > Flashcards

Equine GI Parasites Flashcards

1
Q

What is the horse pinworm?

A

Oxyuris equi

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2
Q

What are clinical signs of pinworm infection in a horse?

A

Anal pruritus, tail rubbing

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3
Q

How do you dx Oxyuris equi?

A

Tape from perineal region

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4
Q

How does Oxyuris equi cause perineal discomfort?

A

Female worms crawl out of anus and cement eggs to perineal region

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5
Q

What is the roundworm of horses?

A

Parascaris equorum

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6
Q

Why does Parascaris equorum cause respiratory sigs?

A

Migrates through lungs and predisposes them to infxn

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7
Q

What are the two most common clinical signs of Parascaris equorum in young foals?

A

Resp signs and intestinal impaction

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8
Q

What can Parascaris equorum cause in adult horses but less so in young horses?

A

Immune mediated hypersensitivity

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9
Q

Why do you want to kill Parascaris equorum slowly?

A

Huge die-off will cause impaction

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10
Q

If a recently dewormed horse presents with colic, what should you consider?

A

Parascaris equorum impaction

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11
Q

What is the tapeworm of horses?

A

Anoplocephala magna/perfliata, Paranoplocephala mamillana

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12
Q

What equine parasite causes GI disturbances and ulceration, unthriftiness, edema, and colic?

A

Tapeworm

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13
Q

How do you treat tapeworm in horses?

A

Praziquantel

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14
Q

What is the small stomach worm of horses (hairworm)?

A

Trichostrongylus axei

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15
Q

Causes chronic gastritis and wt loss d/t penetration of the mucosa, ulceration, and mucosal thickening

A

Trichostrongylus axei

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16
Q

Which organism can also affect ruminants and is often see in horses that are housed near cattle?

A

Trichostrongylus axei

17
Q

What org. causes diarrhea in foals after transmammary infection?

A

Strongyloides westeri

18
Q

How do you prevent Strongyloides westeri infection in foals?

A

Ivermectin to pregnant mare

19
Q

How do you treat Strongyloides westeri in foals?

A

Oxibendazole

20
Q

What is the stomach bot of horses?

A

Gasterophilus intestinalis

21
Q

What eggs are characteristic of Gasterophilus intestinalis?

A

Yellow eggs on medial forelimb cannon bones

22
Q

What are clinical signs of Gasterophilus intestinalis?

A

Usually none, may have gastritis or stomach rupture

23
Q

How do you treat Trichostrongylus axei in horses?

A

Ivermectin, benzimidazoles

GI/Nutritional Disorders (29 decks)

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