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Table 1 Respiratory lesions and slaughter characteristics of followed pigs (3 farms, 3 batches/farm).

From: Dynamics of influenza A virus infections in permanently infected pig farms: evidence of recurrent infections, circulation of several swine influenza viruses and reassortment events

 

Farm#A

Farm#B

Farm#C

 

Batch#1

Batch#2

Batch#3

Batch#1

Batch#2

Batch#3

Batch#1

Batch#2

Batch#3

Pneumonia (%)

52.8

39.5

61.9

14.3

25.8

73.0

9.4

10.5

15.8

Pneumonia mark/28 (sd)

2.9 (3.9)

1.5 (3.4)

3.6 (5.6)

0.3 (0.9)

1.9 (4.0)

3.8 (4.7)

0.2 (0.6)

0.2 (0.5)

0.3 (0.9)

Pleuritis (% marks >2)

2.9

0

0

0

0

5.3

3.0

0

0

Pneumonia healings (%)

11.1

2.6

4.8

4.8

0

7.9

6.3

13.2

21.1

Abscesses (%)

0

2.6

9.5

0

0

5.6

0

2.6

0

Nodule (%)

0

2.6

0

0

0

0

0

0

0

Edema (%)

2.8

0

14.3

0

6.5

7.9

0

5.3

0

Trach.-bronch. lymph nodes

         

   Congestion (%)

8.3

2.6

42.9

0

12.9

10.5

3.1

0

5.3

   Hypertrophy (%)

13.9

10.5

23.8

0

12.9

13.2

3.1

2.6

2.6

Number of observed pigs

36

38

21

21

31

38

32

38

38

Carcass weight in kg (sd)

93.5 (2.8)

92.2 (3.0)

91.6 (2.5)

85.3 (7.0)

86.9 (2.7)

89.4 (7.6)

94.5 (6.0)

92.5 (7.5)

94.3 (4.1)

Slaughter age in days (sd)

181.3 (8.4)

176.9 (13.5)

177.7 (13.0)

183.4 (14.1)

180.6 (10.3)

185.2 (9.7)

174.8 (7.2)

171.8 (8.0)

169.7 (7.5)