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Table 2 Characteristics of the 60 Swedish farrow-to-finish pig herds surveyed

From: Antimicrobial use in Swedish farrow-to-finish pig herds is related to farmer characteristics

 

Mean

Minimum

25th percentile

Median

75th percentile

Maximum

Number of sows

242.7

96

137.5

187.5

275

1200

Number of employees

3.9

2

3

3

4

15

Farmer age

49.7

27

44

49

58

70

Years of experience

22.3

3

15

22

28

50

Pig age at weaning (days)

35

28

33

35

35

49

Total duration (weeks)a

26.9

23

25.6

27

28

32

Perceived need for AMb

2.3

1

1

2

3

6

Perceived risks of AMb

3.1

1

2.3

3

3.8

6

Perceived benefits of AMb

4.3

1.8

3.6

4.2

5

6

Veterinarians’ information contributionb

5

1

4.5

5

6

6

Internal biosecurityc

58.8

33

52

61

65.5

80

External biosecurityc

68.3

44

61.5

68

76

93

  1. aTotal duration = entire rearing period from birth to slaughter, data available for 51 herds, AM = Antimicrobial; bThe original items were assessed on a 6-point Likert scale, where higher scores indicated stronger agreement with the respective item; cScores for internal and external biosecurity range between 0 and 100, where 100 is “perfect biosecurity”