NEMATODES: Heterakoidea spp.

Question 1

What IH’s are associated with heterakoidea spp.?

Answer 1

None, they have a direct life cycle like that of ascarids

Question 2

What PH’s can be associated with carrying the infective L2’s?

Answer 2

Earthworms

Question 3

Who are the definitive hosts of ascaridia spp.?

Answer 3

Domestic and wild birds (chickens being #1)

Question 4

Upon infection and larval penetration at their predilection site, what clinical signs can be observed?

Answer 4

Obstruction, weight loss, diarrhea, anemia, and overall poor appearance

Question 5

On large-scale poultry facilities, what diagnostic test will likely be employed?

Answer 5

Necropsy

Question 6

What heterakis sp. is associated with the infection of chickens and turkey?

Answer 6

H. gallinarum

Question 7

What paratenic hosts can be utilized by H. galliarum to infect chickens and turkey?

Answer 7

Earthworms and flies

Question 8

What predilection site is associated with H. gallinarum?

Answer 8

The cecum

Question 9

What is the common name of H. gallinarum?

Answer 9

Poultry cecal worm

Question 10

While normally, non-pathogenic, what can be transplanted with H. gallinarum?

Answer 10

Histomonas meleagridis

Question 11

Histomonas meleagridis is an example of a -?

Answer 11

Protozoan

Question 12

Which disease is associated with penetrating deep into the cecal mucosa and causing diarrhea, emaciation, and death upon increased burdens?
A) H. gallinarum
B) H. isolonche
C) H. dispar

Answer 12

B) H. isolonche

Question 13

Histomonas meleagridis is associated with what pathognomonic disease in poultry?

Answer 13

Blackhead disease and enterohepatitis

Question 14

Hepatic necrotic lesions are associated with infection in domestic poultry?

Answer 14

Histomonas meleagridis via infection with H. gallinarum