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GI/Nutritional Disorders > Ruminant GI Parasites > Flashcards

Ruminant GI Parasites Flashcards

1
Q

Causes anemia and hyporoteinemia but not diarrhea in sheep and goats

A

Haemonchus contortus

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2
Q

Blood sucker of the abomasum in sheep and goats

A

Haemonchus contortus

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3
Q

What are clinical signs of Haemonchus contortus?

A

Chronic wt loss, poor doing, pale

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4
Q

Where do Haemonchus contortus live?

A

Abomasum

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5
Q

How do you treat Haemonchus contortus?

A

Fenbendazole

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6
Q

Young animals w/profuse watery D+, anorexia, wt. loss, and dehydration

A

Nematodirus

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7
Q

What other parasite concides w/coccidiosis season in the spring?

A

Nematodirus

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8
Q

What do Nematodirus eggs look like?

A

Ellipticals w/curved poles and 2-8 blastomeres

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9
Q

What is the roundworm of ruminants?

A

Ostertagia ostertagii

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10
Q

When does type 1 O. ostertagii occur?

A

Winter and spring from L3 in contaminated pastures

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11
Q

When does type 2 O. ostertagii occur?

A

Autumn to winter b/c inhibited L4 emerge

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12
Q

Where do O. ostertagii live?

A

Abomasum

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13
Q

What clinical signs does O. ostertagii type 1 cause in naive cows?

A

Diarrhea, acute wt. loss

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14
Q

What clinical signs does O. ostertagii type 1 cause in chronic disease?

A

Diarrhea

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15
Q

What will you see on post mortem of an O. ostertagii infection?

A

Moroccan leather abomasums

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16
Q

How do you treat O. ostertagii?

A

Ivermectin

17
Q

What drug kills all life stages of O. ostertagii?

A

Ivermectin

18
Q

What coccidiosis affects ruminants?

A

Eimeria

19
Q

What does Eimeria cause in calves?

A

Nervous coccidiosis

20
Q

What is the MoA of Eimeria?

A

Heat labile neurotoxin

21
Q

What clinical signs do you see with Eimeria?

A

Bloody/tenesmus diarrhea followed by neuro signs

22
Q

How do you treat coccidiosis in ruminants?

A

Amprolium (monensin, sulfa-containing drugs)

23
Q

What is the intestinal threadworm of ruminants?

A

Strongyloides spp.

24
Q

How do Strongyloides spp get to the intestines?

A

Penetrate oral mucosa/skin, blood to heart, migrate through lungs and trachea, coughed/swallowed

25
Q

What is the tapeworm of ruminants?

A

Monezia

26
Q

What shape is Monezia?

A

Rectangular/triangular shaped

27
Q

This parasite is usually non-pathogenic but can cause intestinal stasis

A

Monezia

GI/Nutritional Disorders (29 decks)

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