Ruminant Nematode

Question 1

Biggest economic loss.

Answer 1

Hot complex

Question 2

Three spp. of the hot complex.

Answer 2

Haemonchus contortus, ostertagia ostertagi, trichostrongylus spp.

Question 3

What is bottle jaw?

Answer 3

Thickened mandible area, lumpy jaw

Question 4

Haemonchus contortus

Answer 4

Barberpole worm

Question 5

Caused by decreased protein in blood.

Answer 5

Bottle jaw

Question 6

Ostertagia ostertagi

Answer 6

Brown stomach worm

Question 7

Mainly….

Answer 7

Cows, sheep, goat

Question 8

Two types of strongyles of horses?

Answer 8

Small and large strongyles

Question 9

Three years of large strongyles?

Answer 9

Vulagaris, edentatus, equinus

Question 10

Travels to the arteries of horses that supply intestines with blood.

Answer 10

Strongylus vulgaris

Question 11

Causes roughening of arterial walls and causing clots and cutting off blood supply.

Answer 11

Strongylus vulgaris

Question 12

Affects the airways and bronchi of cattle.

Answer 12

Dictyocaulus spp.

Question 13

Largest spp. In the trichostrongyle family.

Answer 13

Nematordius spp.

Question 14

Horses usually develop immunity to this stongyle and mostly infects foals

Answer 14

Parascarsis equorum (roundworm)

Question 15

Found in the abomasum.

Answer 15

Bankrupt worm (trichostrongyle spp.)

Question 16

Can hibernate in the abomasum lining and are released in ideal conditions.

Answer 16

Ostertagia ostertagi

Question 17

Causes bottle jaw.

Answer 17

Haemonchus contortus

Question 18

Transferred through soul strum to foals.

Answer 18

Threadworms (strongyloides westeri)

Question 19

Live in large intestine and cecum and are usually found on the skin.

Answer 19

Oxyuris equi (pinworm)

Question 20

Makes horses itch their rump. “Brush bottle tail”

Answer 20

Oxyuris equi (pinworm)

Question 21

A test to determine how many may be infecting the herd.

Answer 21

Eggs per gram test

Question 22

Pasture management.

Answer 22

Rotating pasture, young animals in cleaner pastures, no overstocking

Question 23

Rotating dewormers to minimize worm resistance and deworming the entire heard

Answer 23

Strategic deworming

Question 24

Total economic loss of parasites annually

Answer 24

$100 million

Question 25

Causes the biggest economic loss.

Answer 25

Brown stomach worm “ostertagia ostertagi”

Question 26

Blood suckers of the stomach lining.

Answer 26

Haemonchus contortus “barber pole worm”