Table 6 Descriptive results of lung lesions in the ten herds (A–J) and the three batches (1, 2, 3) within each herd: severity of Mycoplasma-like lesions (n = 3605), prevalence of pneumoniae (n = 3605), fissures (n = 3605) and pleurisy (n = 3820)

Mycoplasma-like lesions

7.2 ± 12.6

0.6 ± 1.9

4.8 ± 11.5

1.8 ± 5.1

10.2 ± 17.3

2.7 ± 9.0

7.8 ± 14.4

3.9 ± 10.8

4.0 ± 11.6

2.3 ± 7.7

4.6 ± 11.6

 1

7.3 ± 12.2

0.6 ± 1.9

1.7 ± 3.4

2.1 ± 4.2

5.9 ± 10.1

0.4 ± 1.4

6.4 ± 12.8

6.7 ± 13.8

2.1 ± 10.3

1.2 ± 2.9

3.6 ± 9.3

 2

8.3 ± 12.7

0.6 ± 1.9

4.1 ± 9.2

1.3 ± 4.7

10.9 ± 17.9

0.9 ± 5.7

6.7 ± 14.0

2.1 ± 7.6

1.4 ± 6.0

0.1 ± 0.9

3.6 ± 10.5

 3

6.3 ± 13.0

0.5 ± 1.9

8.6 ± 16.7

1.8 ± 5.9

13.2 ± 20.5

6.6 ± 13.3

10.4 ± 15.9

2.5 ± 9.1

7.9 ± 15.2

4.9 ± 11.5

6.4 ± 14.0

Pneumonia  %

42 (83/197)

9 (29/310)

30 (69/229)

19 (81/432)

45 (205/455)

17 (70/422)

41 (179/433)

22 (91/407)

19 (71/382)

16 (54/338)

26 (932/3605)

 1

41

10

22

26

42

7

38

37

11

17

26

 2

48

10

30

13

45

4

35

16

7

2

20

 3

38

8

38

17

48

37

51

12

35

28

32

Fissures  %

46 (90/197)

32 (99/310)

34 (78/229)

38 (164/432)

48 (217/455)

37 (155/422)

39 (170/433)

52 (213/407)

51 (194/382)

32 (107/338)

41 (1487/3605)

 1

29

31

50

48

28

22

31

34

38

25

33

 2

33

33

17

32

54

30

44

66

46

33

41

 3

71

32

42

34

59

57

42

57

63

34

49

Pleurisy  %

15 (30/200)

8 (25/319)

29 (73/250)

35 (162/461)

37 (185/494)

27 (119/445)

16 (71/454)

33 (149/445)

29 (120/411)

2 (6/341)

25 (940/3820)

 1

1

2

7

39

38

21

16

25

32

3

21

 2

26

7

45

35

37

28

20

34

27

2

27

 3

20

15

26

32

37

32

11

43

30

1

26