Superfamily Heterakoidea
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Questions and Answers

What are the general characteristics of Superfamily Heterakoidea?

Direct life cycle, still roundworms, infective L2, Predilection site is small and large intestines, thick shell egg, oval

What are the two parasites within the Superfamily Heterakoidea?

Ascaridia spp and Heterakoidea spp.

Who is the final host for Ascaridia?

Birds, especially chickens

Who is the paratenic host for Ascaridia spp?

<p>Earthworm</p> Signup and view all the answers

How do you ID Ascaridia spp worm?

<p>It’s the largest nematode found in birds (8-12 cm)</p> Signup and view all the answers

What is the PPP for Ascaridia spp?

<p>28 days to 8 weeks</p> Signup and view all the answers

What is the predilection site, LC and infective stage of Ascaridia spp?

<p>Small intestine, direct with infective L2 in egg</p> Signup and view all the answers

What is the pathogenesis of Ascaridia spp?

<p>Obstruction due to the big worms</p> Signup and view all the answers

What are the clinical signs of Ascaridia spp?

<p>Weigh loss correlated with worm burden, poor condition</p> Signup and view all the answers

Burns that are 3 months and younger are most affected by Ascaridia spp

<p>True</p> Signup and view all the answers

How do you diagnose Ascaridia spp?

<p>eggs in fecal exam or necropsy</p> Signup and view all the answers

What is the method of prevention for Ascaridia spp?

<p>Separate young and old birds, favors deep litter systems</p> Signup and view all the answers

Black head is describing this parasite (____)

<p>Heterakoidea spp.</p> Signup and view all the answers

What is the street name for Heterakis spp?

<p>Poultry fecal worm</p> Signup and view all the answers

Who is the final host for Heterakis spp?

<p>Birds, especially chickens</p> Signup and view all the answers

The paratenic hosts for Heterakis spp are ____ and ____

<p>The paratenic hosts for Heterakis spp are earthworms and flies</p> Signup and view all the answers

How do you ID the worm in Heterakis spp?

<p>It is 1-1.5 cm in length</p> Signup and view all the answers

What is the predilection site for Heterakis spp?

<p>Cecum</p> Signup and view all the answers

What is the pathogenesis of Heterakis spp?

<p>The species H. Gallinarum is non pathogenic by itself, but it carries Histoomonas meleagridis in the egg and this Protozoa causes blackhead/infectious enterohepatitis</p> Signup and view all the answers

How do you diagnose Heterakis spp?

<p>Eggs in fecal or necropsy</p> Signup and view all the answers

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