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Flashcards in Order Strongylida Deck (29):
1

subfamily strongylinae common name:

large strongyles

2

subfamily Cyathostominae common name:

small strongyles

3

hosts

all horse species

4

size of adult Strongylinae

1.5-5 cm

5

size of adult Cythanostominae

less than 1.5 cm

6

size of Strongylinae egg

60-120 x 35-60 micrometers

7

size of Cythanostominae egg

60-120 x 35-60 micrometers

8

development of Strongylinae

migrate through organs

9

development of Cythanostominae

encyst in intestinal walls

10

do Strongylinae have anthelmintic resistance?

No- can be controlled by them

11

Do Cythanosominae have anthelmintic resistance?

yes

12

characteristics of superfamily strongyloidea

buccal capsule well developed
all mouth capsules are globular!!
teeth usually present
direct life cycle
L3 is infective stage

13

what are the large strongyles?

Strongylus vulgaris
Strongylus edentatus
Strongylus equinus

14

large strongyles are _____

bloodsuckers

15

greater than ____ species of cythanostominae

50

16

Cythanosominae cause _____

diarrhea

17

mouth capsule of Cythanostominae

rectangular

18

Cythanostominae site of infection

large intestine

19

Cythanostominae pathogenesis

Larval cyathostominosis, lymphocytic infiltration, colitis

20

clinical signs of Cythanostominae

mainly associated with L4
chronic diarrhea and weight loss

21

Cythanostominae diagnosis

fecal examination, distinguish larvae of small vs. large strongyle

22

treatment of Cythanostominae

BZ's and MCL's

23

prevention of Cythanostominae

manage pasture, treat animals, clean up feces, mixed grazing, do not overstock

24

large strongyles have longer ____

PPP

25

large strongyles are _____ common

less

26

which large strongyle is most pathogenic?

Vulgaris

27

which large strongyles cause anemia?

Edentatus and Equinas

28

do all horses have small strongyles?

yes

29

in small strongyles emergence of ____ is most damaging

L4