Equine strongyles

Question 1

Sm strongyles

Answer 1

aka cyathostomes

1. non-migratory, limited life cycle
2. important potential pathogen
3. plug feeders

Question 2

Lrg strongyles

Answer 2

1. extensive migration
2. big mouths
3. blood feeders

Question 3

All strongyle type eggs

Answer 3

identical

Question 4

Small strongyle life cycle

Answer 4

PPP 6-12 wks
Direct life cycle
L3 larvae infective stage
Can encyst for up to 2 years

Question 5

Large strongyle life cycle

ie: strongylus vulgaris

Answer 5

PPP 6 months
Direct lifecycle
L3 larva infective
Cranial mesenteric thrombus
End up in intestines

Question 6

Large strongyle life cycle

ie: Strongylus edentatus

Answer 6

PPP 6-11 months
Direct lifecycle
L3 larva infective
Hepatic ligament migration
End up in cecum
*Ca deposits

Question 7

Large strongyle life cycle

id: strongylus equinus

Answer 7

PPP 9 months
Direct lifecycle
L3 larva infective
encyct in GI
End up in ventral colon
*Necrosis and hepatitis

Question 8

Strongyle diagnosis

Answer 8

Fecal flotation

Question 9

Cyathostomes resistent to

Answer 9

Benzimidazoles (Fenbendazole)

Question 10

Ascarids resistent to

Answer 10

Macrolides (azithromycin)