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Table 4 Meat inspection findings of the batch slaughtered after the herd visit in 46 study herds

From: Herd-level risk factors for chronic pleurisy in finishing pigs: a case-control study

Variable

n

Mean

SD

Median

Min

Max

No. of slaughter pigs

46

  

286.5

58

1530

Mean carcass weight

29

87.0

7.9

87.7

62

106

Condemnations (kg/pig)*

 All herds

27

0.4

0.34

0.3

0.03

1.4

 Control herds

15

0.3

0.34

0.2

0.03

1.4

 Case herds

12

0.5

0.33

0.3

0.8

1.4

Lean meat (%)

29

60.1

0.9

60.2

57.2

62.1

Whole carcass condemnations (%)*

 All herds

46

0.2

0.3

0.1

0

1.0

 Control herds

25

0.1

0.3

0

0

1.0

 Case herds

21

0.3

0.3

0.3

0

1.0

Partial carcass condemnations (%)*

 All herds

46

5.8

1.2

16.2

 Control herds

25

5.0

1.2

16.2

 Case herds

21

7.4

2.2

13.9

Organ condemnations (%)

44

1.1

0

10.5

Pneumonia (%)

46

1.3

0

6.2

Pleurisy (%)*

 All herds

46

5.8

0

60.9

 Control herds

 

1.9

0

34.5

 Case herds

 

42.4

2.9

60.9

Milk spots in liver (%)

46

1.7

0

56.8

Arthritis (%)

46

2.7

0

10

Abscesses (%)*

 All herds

46

3.1

0.9

12.7

 Control herds

25

2.7

0.9

11.2

 Case herds

21

4.9

1.4

12.7

Tail biting (%)*

 All herds

46

0

0

3.6

 Control herds

25

0

0

1.7

 Case herds

21

0.6

0

3.6

  1. Variables that have a significant association with the main outcome variable (pleurisy) are reported separately for control and case herds
  2. Mean and standard deviation are reported for normally distributed variables and median, minimum and maximum values for the others
  3. * Variables that have a significant association with the main outcome variable (pleurisy) in univariate logistic regression (p ≤ 0.05)