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Table 2 Number and percentage of each lesion detected during the work in the three slaughterhouses and an estimate of the prevalence of each lesion

From: Development and test of a visual-only meat inspection system for heavy pigs in Northern Italy

.

Slaughterhouse 1

Slaughterhouse 2

Slaughterhouse 3

Tot.

number

%

number

%

number

%

number

Prevalence %

standard error

Pneumonia

5100

5.40

8840

8.99

1911

4.91

15,851

6.43

0.050

Pleuropneumonia

15,242

16.14

12,654

12.87

6756

17.35

34,652

15.46

0.074

Hepatitis

21,972

23.27

10,535

10.71

5594

14.37

38,101

16.12

0.075

Hepatosis/hepato-dystrophies

625

0.66

3537

3.60

618

1.59

4780

1.95

0.028

Peritonitis/perihepatitis

355

0.38

730

0.74

71

0.18

1156

0.43

0.013

Enteritis

206

0.22

514

0.52

137

0.35

857

0.36

0.012

Nephritis

234

0.25

261

0.27

113

0.29

608

0.27

0.011

Nephrosis

134

0.14

137

0.14

224

0.58

495

0.29

0.011

Cryptorchidism

139

0.15

140

0.14

115

0.30

394

0.20

0.009

Myocarditis

11

0.01

3

0.00

4

0.01

18

0.01

0.002

Pericarditis

3341

3.54

3345

3.40

1059

2.72

7745

3.22

0.036

Dermatitis

832

0.88

1120

1.14

858

2.20

2810

1.41

0.024

Erysipelas

29

0.03

115

0.12

291

0.75

435

0.30

0.011

Arthritis

0

0.00

8

0.01

0

0.00

8

0.00

0.000

Muscle colour alteration (PSE/DFD)

7

0.01

2

0.00

4

0.01

13

0.01

0.002

Oedema/emaciation

22

0.02

12

0.01

4

0.01

38

0.02

0.003

Jaundice

79

0.08

11

0.01

9

0.02

99

0.04

0.004

Abscesses

571

0.60

865

0.88

422

1.08

1858

0.86

0.019

Neoplasms / tumours

25

0.03

7

0.01

9

0.02

41

0.02

0.003

Biliary or faecal contamination

2126

2.25

3582

3.64

956

2.46

6664

2.78

0.034

Trauma

405

0.43

1316

1.34

674

1.73

2395

1.17

0.022

Lymphadenopathy

138

0.15

47

0.05

25

0.06

210

0.09

0.006

Splenomegaly

254

0.27

173

0.18

176

0.45

603

0.30

0.011

Petechial haemorrhages

24

0.03

1

0.00

0

0.00

25

0.01

0.002

Tot.

51,871

54.94

47,955

48.77

20,235

51.45

119,965

51.72

0.102

Animals

94,411

 

98,333

 

38,929

 

231,590

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