1
Q
What is ascaris suum?
A
Pig roundworm
‘Milk spot’
2
Q
What organ does it affect?
A
Liver
3
Q
What is the outcome of PM?
A
Partial reaction of liver
Category 3
4
Q
Prevention methods
A
Don’t use pig faeces as fertiliser
5
Q
Life Cycle of Roundworm
A
- Eggs laid in intestines so pass out in faeces
- No free living stage, L1-2 occurs in egg
- Egg ingested by pig
- Eggs hatch in intestine and migrate to hepatic portal vein
- L3 develops in liver and migrates to heart and lungs
- L3 coughed up and swallowed
- L4 develops in intestines and lays eggs
