Dictyocaulus Viviparus Flashcards
1
Q
common name
A
lung worm
2
Q
common name of disease
A
husk, hoose, verminous pneumonia
3
Q
hosts
A
cattle
4
Q
identification
A
slender white nematodes
5
Q
size adult
A
3-10cm
6
Q
life cycles
A
female lay eggs hatch to L1 coughed up and passed in feces develop L3 cattle swallow L3 L3 enter the lung and mature to adults
7
Q
PPP
A
24 days
8
Q
site of infection
A
trachea and bronchi
9
Q
pathogenesis of penetration phase
A
days 1-7
larval migration
no clinical signs
10
Q
infective stage
A
L3
11
Q
diagnsosis
A
identification of L1
necropsy
12
Q
L3 may also be dispersed by ____
A
fungi
13
Q
pathogensis prepatent phrase
A
days 8-24
larvae develop to adults in lungs
alveolitis and bronchitis
14
Q
pathogensis patent phase
A
days 25-60
adults in lungs
bronchitis and pneumonia
15
Q
pathogensis postpatent phase
A
days 61-90
recovery starts- if animal is alive
