Oxyuris equi Flashcards
1
Q
order
A
oxyurida
2
Q
common name
A
large pinworm
3
Q
host
A
all horses
4
Q
size of eggs
A
85 x 40- has operculum
5
Q
adult characteristic
A
long white nematodes with pointed tails
6
Q
adult size
A
10cm
7
Q
life cycle
A
adults in dorsal colon female lays eggs in perineum eggs laid with gelatinous substance eggs develop to contain L3 egg ingested with food or water L3 lives in dorsal colon develop to L4 in colon
8
Q
direct or indirect life cycle?
A
direct
9
Q
site of infection
A
large intestine
10
Q
pathogenesis
A
pruritus
11
Q
clinical signs
A
peri- anal irritation
12
Q
diagnosis
A
perianal scraping method
adhesive tape
13
Q
treatment
A
parasiticides
14
Q
what is the infective stage?
A
L3 in egg
