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Flashcards in Internal Parasites Deck (14)
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1

Which is more important in parasite control: treatment or prevention?

Prevention

(Source: Horse Science (National 4-H Council), p. 59)

2

After putting your horse on a regular deworming program, when should they be wormed?

Fall after the first killing frost & in the spring before they go out to pasture OR daily, 4 times a year, every 2 months

(Accept any)

(Source: Horse Science (National 4-H Council), p. 56 / The Horse, Evans, p. 647)

3

If you see a rough coat on a horse you are looking at to buy, what could the problem be?

Worms

(Source: AYHC Horse Industry Handbook, 430-1)

4

What is wrong with an overgrazed pasture of short forage?

Can be a serious source of internal parasite infestation

(Source: AYHC Horse Industry Handbook, 430-5)

5

During the first 180 days of a foal's life, what are the two most important internal parasites to control?

Strongyles & Ascarids

(Source: Horses and Horsemanship, Ensminger, p. 348 & 355 / AYHC Horse Industry Handbook, 950-9)

6

Name 4 types of internal parasites.

Bot Flies, Ascarids (roundworms), Strongyles (bloodworms), Strongyloides (threadworms), Pinworms

(Source: Horse Science (National 4-H Council), p. 56-58)

7

What is the goal in management of internal parasites?

Break the life cycle of the parasite

(Source: Horse Science (National 4-H Council), p. 58 / AYHC Horse Industry Handbook, 430-6)

8

Why should horses be rotated to fresh pasture every 2 weeks if possible?

To reduce internal parasite infestations; to increase productivity of the pasture

(accept either)
(Source: The Horse, Evans, p. 819)

9

Why should you never feed on the ground?

It allows opportunities for horses to become re-infected with internal parasites OR Horses fed on the ground may develop sand colic

(Source: AYHC Horse Industry Handbook, 430-7 / The Horse, Evans, p. 606)

10

Why should you rotate or alternate deworming products?

They differ in chemical composition & parasites can develop resistance

(Source: Horse Science (National 4-H Council), p. 59)

11

Female roundworms may lay up to how many eggs per day?

200,000 eggs per day

(Source: Horse Science (National 4-H Council), p. 57 / AYHC Horse Industry Handbook, 430-1)

12

How are stomach worms transmitted to horses?

Common house and stable flies

(Source: Horses and Horsemanship, Ensminger, p. 354)

13

How many eggs can an ascarid lay per day?

Up to 200,000

(Source: Horse Science (National 4-H Council), p. 57)

14

When should you deworm your horses?

At least every 8 weeks

(Source: Equine Science, Griffiths, p. 192)