Parascaris equorum (1) Flashcards
1
Q
What are the hosts?
A
Equine
2
Q
Describe an adult
A
30 cm
3 lips
3
Q
Describe eggs
A
Dark brown
Round
90x90 micro m
Pitted
Thick shelled
4
Q
Describe the life cycle
A
Per os
PPP: 10-12 weeks
Eggs -> Egg with L2:
5
Q
What is the site of infection?
A
Small intestine
6
Q
Describe the Pathogenesis
A
Issue in breeding facility
Production losses
7
Q
What are the clinical signs?
A
Unthriftiness
Coughing - during migratory phase
Concern with intestinal obstruction
8
Q
How do you diagnose?
A
McMaster fecal flotation
Necropsy in adults, also in feces/vomit
9
Q
How do you treat and prevent?
A
If worms are all killed at one time, resulting obstruction can result in death
Timing important
- Too early - migrating larvae survive
- Too late - Disasterous
- Young animal ends up in surgery
Deworm between 60-90 days of age
- Can be before eggs seen in feces
Anthelmintic resistance
10
Q
What is the common name?
A
Roundworm
