Georgi's Parasitology of Veterinarians 11 ed (Nematode)

Question 1

Less the 14 mm long

Brown in abomasum

Short, broad buccal cavity

Short 2 or 3 pronged spicules

Female tail is annulated with a vulvar flap (cuticular expansion)

Answer 1

Ostertagia (cattle) and Teladorsagia (small) ruminants

Question 2

Small, hair-like worms, (7 mm) w/o cephalic inflations (wings), and virtually no buccal capsule

Spicules are short, twisted, and pointed

Abomasa worm and 1st 6 meters of the small intestine

Ruminants, horses, and leporids (rabbit)

High host specificity

Answer 2

Trichostrongylus axei

Commonly confused with Strongyloides and Cooperia

Question 3

Biotic potential or reproductive capacity of strongylid depends on what 2 factors?

Answer 3

1. Rate of production of fertile eggs
2. generation time or the time required for the eggs to develop to patency