From: Biosecurity measures for the prevention of African swine fever on German pig farms: comparison of farmers’ own appraisals and external veterinary experts’ evaluations
Production type
Amount of farm sites
All
1
2
3
4
Farrow-to-finish farms
13
0
28
Piglet-producing Farms
11
17
Fattening pig farms
9
10
22
Outdoor farms
14