(22) Equine Strongyles

Question 1

Answer 1

vulgies = 2 teeth

edentatus - no teeth

equinius - 3 teeth

Question 2

(Equine Strongyles)

1. hosts?

Answer 2

1. horse, donkey, mule, zebra

Question 3

Question 4

(Strongylus Vulgaris)

1. acute S. vulgaris syndrome

found in what with what?

2. Verminous Colic - seen in what age?

migration to where?

relates to migration of what where?

3. intestinal form

most common

Answer 4

1. young foals with large numbers of worms

(due to migration in wall of LI and mesenteric arteries)

2. all ages

anterior mesenteric arteries

L4 and L5 in anterior mesenteric arteries

Question 5

(Strongylus Edentatus)

1. Path/clinical signs

to where?

Answer 5

1. liver, abdominal cavity, wall of large bowel

Question 6

(Strongylus Equinus)

1. infrequent pathogen

PRIMARY PATHOGENESIS FOR ALL THREE (THE PREVIOUS TWO)

all end up as adults sucking blood of gut causing Path of GI (most notable is vulgaris)

Question 7

(Small Strongyles)

1. most path due to what?
2. what two syndromes?
3. Treatment

Resistance to anthelmintics is common - so do what?

why?

Answer 7

1. emergence of cytsts of arrested L4’s
2. larval cyathostomiasis and natural cyathostome infection
3. rotate products (benzimadizoles (fenbendazole), endectocides/macrocylcic lactones, pyrantel)

to kill all worms and not establish a resitant population

Question 8

(strongyles)

1. Epidemiology

assume what?

2. infection only by ingestion of what?
3. temp and moisture major factor in larval development
4. diagnosis?
5. Control = good management and strategic deworming program

run fecal before deworming (nor reason to deworm if no worms present)

Answer 8

1. that all horses have strongyles
2. L3
3. cannot diffeentiation species

Question 9