Parasites

Question 1

bloodworm, redworm, or sclerostomes

Answer 1

Large strongyle

Question 2

How many species of small strongyles are there and how many are prevalent?

Answer 2

40 species: 10 prevalent

Question 2

what is the clinical sign of a horse infested with strongyles?

Answer 2

anemia

Question 2

What are small strongyles referred to as?

Answer 2

cyathostomins

Question 2

prepatent period for Large Strongyle

Answer 2

6-11 months

Question 3

What is the treatment of choice for strongyles?

Answer 3

Anthelmintics: fights against parasitic worms

Question 3

what drugs of anthelmintics

Answer 3

benzimidazoles, pyrantel, and ivermectin

Question 4

what are the 3 species of large strongyles and explain them

Answer 4

S. vulgaris: in the mesentric artery, treated with ivermectin and moxidectin. also Fendbendazole and oxfendazole
S. Edentatus: damage intestinal serosa, burrow into sumucosa and molt into 4th larva stage
S. Equinus: penetrate intestine and move to liver

Question 4

small strongyles don’t migrate outside of intestines.

Answer 4

True

Question 4

What type of family are small strongyles?

Answer 4

Strongylidae

Question 4

treatment for small strongyles

Answer 4

adults removed from gut lumen. High concentrations of ivermectin work to treat the larvae

Question 5

a syndrome of sudden weight loss. It is associated with a mass from intestinal wall

Answer 5

larval cyathostominosis

Question 6

what are roundworms known as

Answer 6

Ascarids

Question 7

prepatent period of a roundworm

Answer 7

10-12 weeks

Question 8

source of infection of roundworms

Answer 8

pastures, paddocks, or stalls

Question 9

signs of migrating roundworm larvae produce with heavy infestations cause

Answer 9

respiratory signs

Question 10

Gastrophilus spp

Answer 10

bots

Question 11

what are the 3 major species of bots and describe

Answer 11

Gastrophilus intestinalis: common bot, the eggs are laid on the legs of the horse
Gastrophilus hemorrhoidal: nose or lip bot. eggs are laid on the lips of the horse
Gastrophilus nasalis: eggs are laid on the hair of the submaxillary region

Question 12

Treatment for bots

Answer 12

remove with pumice stone or bot knife. deworm with ivermectin or moxidectin

Question 13

Species: oxyuris equi is what?

Answer 13

pinworm

Question 14

where does irritation start with pinworms?

Answer 14

around the anus

Question 15

3 species of tapeworms

Answer 15

anoplocephala magna, A. perfoliate, and Paranoplocephala mamillana

Question 16

symptoms of tapeworms

Answer 16

GI disturbances, ulceration in mucosa, sometimes no symptoms if there is a light infection

Question 17

Treatment for pinworms

Answer 17

pyrantel, praziquantel, mixtures of ivermectin and moxidectin with praziquantel

Question 18

Species Strongyloides westeri

Answer 18

Threadworm

Question 19

Where are threadworms found?

Answer 19

small intestine

Question 20

how can you prevent threadworms

Answer 20

deworming a mare within 24 hours of foaling

Question 21

How are threadworms transmitted

Answer 21

transmammary

Question 22

3 species of stomach worms and locations

Answer 22

Habronema muscae: freely on mucosa
H. microstoma: freely on mucosa
Drashcia megastoma: tumor like swelling in stomach wall

Question 23

what are the intermediate hosts of stomach worms?

Answer 23

stable flies

Question 24

how do you treat stomach worms?

Answer 24

ivermectin and moxidectin

Question 25

species Trichostrongylus axei

Answer 25

Hairworm

Question 26

when are hairworms a issue?

Answer 26

when horses get combined with ruminants

Question 27

clinical signs of hairworms

Answer 27

wt loss

Question 28

treatment for hairworms

Answer 28

Benzimidazoles and ivermectin