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Table 1 Demographic information of the farms included in the study

From: Implementation of PRRSV status classification system in swine breeding herds from a large integrated group in Spain

FarmLocation (Spanish region)SowsGenetic codeProduction systema
1Catalunya3000AS1
2Aragon1200AFTF
3Catalunya550AFTF
4Catalunya3000AS1
5Catalunya1000AS1 + S2
6Aragon750AS1 + S2
7Catalunya3500AS1
8Catalunya1100AS1
9Aragon550AS1
10Aragon1080AS1
11Aragon800AS1
12Aragon550AS1
13Aragon2800BS1
14Aragon2580AS1
15Aragon3000BS1
16Aragon3000BS1
17Aragon3500BS1
18Aragon2300CS1 + S2
19Aragon2400CS1 + S2
20Aragon2800BS1
21Aragon1200AS1
22Catalunya3500AS1
23Aragon2400CS1
24Aragon3300BS1
25Aragon2600BS1
26Navarra2900CS1 + S2
27Navarra2900CS1 + S2
28Aragon3300CS1
29Aragon620CS1
30Aragon2800DS1 + S2
31Aragon950CS1 + S2
32Aragon3900BS1
33Aragon3500BS1
34Navarra2000BS1
35Aragon1500BS1
  1. aS1: Breeding farm only; S1 + S2: Breeding and Nursery sites in the farm; FTF: Farrow-to-Finish farm