Threats to a Pig Unit

(NOTE:  They are in order of importance, but the order can change depending on many circumstances.)

1. Other pigs
2. Pork products (ham, salami, sausage, pizza)
3. Knackerman (placement of dead pig disposal area)
4. Transportation systems
5. Locality of neighbouring pig units
6. Presence of a major road
7. Purchased second-hand equipment
8. Clothing from another unit
9. Birds, rodents, cats, dogs, flies
10. AI and embryo transfer
11. Feed and water
12. Bedding and straw (note source of manure for straw)
13. Staff owning their own pigs
14. Staff visiting pig markets, shows, other pig units and slaughterhouses
15. Visitors (note electricity and gas service people)
16. New utensils
17. Medicines - live vaccines for example
18. NOTE:  one the most significant risks to the unit is a sick pig on the unit