health assessment from the slaughterhouse

Health assessment from the

slaughterhouse

pneumonia•acute

• confluent with normal lung or swollen

• rounded edges to lobes

• soft, meaty texture

• moist exudate in airways

• swollen lobules• edema

• chronic• shrinkage of

affected portion

• sharp edges to lobes

• firm texture• dry• catarrhal

exudate• scarring

Straw, B., Backstrom, L. Leman, A. 1986. Evaluation of swine at slaughter, Part 1 - The mechanics of examination and epidemiologic considerations. Compendium of Continuing Education for Practicing Veterinarians. 8: 541-548

Burch, D. 1984. Tiamulin feed premix in the improvement of growth performance of pigs in herds severely affected with enzootic pneumonia. Veterinary Record. 112: 209-211

Scalding water aspiration-lung

From A Colour Atlas of Meat Inspection. J. Infante Gil, J. Costa Durao Wolfe Publishing Ltd 1990

Agonal aspiration of blood-lungFrom A Colour Atlas of Meat Inspection. J. Infante Gil, J. Costa Durao Wolfe Publishing Ltd 1990

Acute oedema-lung

From A Colour Atlas of Meat Inspection. J. Infante Gil, J. Costa Durao Wolfe Publishing Ltd 1990

Enzootic pneumonia-lungFrom A Colour Atlas of Meat Inspection. J. Infante Gil, J. Costa Durao Wolfe Publishing Ltd 1990

pleurisy

•Grade 1: The lobe of the lung

•Grade 2: Bonding between the lobe and the ribs

•Adoption of pleuropneumonia: not recorded as pleurisy, but classified as a lung score.

recording pleurisy together with pneumonia

•N1 = stick together between lobe, normal lung

•N2 = stick together between the lobe and the ribs, normal lung

•P1 = adjacent to the lobe, pneumonia lung

•P2 = stick together between the lobe and the ribs, lungs pneumonia

Pericarditis And peritonitis

Pleuropneumonia

•Viral bleeding, skin abscesses, abscesses

•The end of the lobe

Abscessation / arthritis

•Muscular lymph nodes, abdominal cavity, spinal cord, injection site.

From A Colour Atlas of Meat Inspection. J. Infante Gil, J. Costa Durao Wolfe Publishing Ltd 1990

From A Colour Atlas of Meat Inspection. J. Infante Gil, J. Costa Durao Wolfe Publishing Ltd 1990

Ascariasis

•Grade 1: milkspot <10

•Grade 2: Milkspot> = 1

•Or maybe save: yes or no

From A Colour Atlas of Meat Inspection. J. Infante Gil, J. Costa Durao Wolfe Publishing Ltd 1990

Sarcoptic mange

•Grade 1: The papule is located only at the papule 2-5 mm diameter behind the ear or abdomen and thigh: specificity 78%

•Grade 2: Wide distribution: specificity> 98%

•Grade 3: Wide distribution and density: specificity> 98%

sarcoptic mange

Grade 1Pointon, A., Dial, G. 1990. Swine Slaughter-check Procedures Manual. Developed through collaboration of the National Animal Health Monitoring System and University of Minnesota Swine Group

.

sarcoptic mange

Grade 2

Pointon, A., Dial, G. 1990. Swine

Slaughter-check Procedures

Manual. Developed through collaboration of the National Animal Health Monitoring System and University of Minnesota S

wine Group.

sarcoptic mange

Grade 3

Pointon, A., Dial, G. 1990. Swine Slaughter-check Procedures Manual. Developed through collaboration of the National Animal Health Monitoring System and University of Minnesota Swin

e Group.

Pointon, A., Dial, G. 1990. Swine Slaughter-check Procedures Manual. Developed through collaboration of the National Animal Health Monitoring System and University of Minnesota Swine Group.

Ileitis

•the end ileum•proliferative enteropathy (PE)

proliferative intestinal adenomatosis (PIA)

Atrophic rhinitis

•Grade 0: Normal full-nose turbinate septum symmetric and upright.

•Grade 1: Anatomy Slightly absent from atrophy

•Grade 2: mild to severe atrophy There is a gap of 6 mm in only the lower degeneration occurs. scroll There are a few ways. septum Slight

•Grade 3: Moderate changes. Moderate septum defect with 7 mm gap. Degeneration at moderate ventric scroll.

•Grade 4: Moderate to Severe Changes There is a septum defect between the middle of the ventricle with a gap> 8 mm ventric scroll disappears. Moderate degeneration occurs. Severe fibrous ventral scroll.

•Grade 5: Severe changes with ventral turbinate loss on either side. Degenerate dorsal turbine septum may be severe or may be present.

Atrophic rhinitis

Pointon, A., Dial, G. 1990. Swine Slaughter-check Procedures Manual. Developed through collaboration of the National Animal Health Monitoring System and University of Minnesota Swine Group.

Nephritis

•Grade 1: White to gray spots 2-5 mm in diameter at the cortex surface. No scar and / or hypertrophy.

•Grade 2: Expanded Vision Found a grayish tinge. cortex have hypertrophy And possibly appearance capsule Stick with cortex Stripping out hard

Subacute interstitial nephritis-kidney

From A Colour Atlas of Meat Inspection. J. Infante Gil, J. Costa Durao Wolfe Publishing Ltd 1990

Chronic interstitial nephritis-kidneyFrom A Colour Atlas of Meat Inspection. J. Infante Gil, J. Costa Durao Wolfe Publishing Ltd 1990

Esophogastric ulcer

•Grade 0: Normal skin throughout the esophagus

•Grade 1: The hyperkeratinisation of the squamous area is usually paler and yellow.

•Grade 2: epithelium stripping, especially at the squamous-glandular junction

•Grade 3: There are active pit ulcers and cicatrisation of esophogastric orifice

The time that pigs are infected before the

slaughterhouse is also visible.

4-6 weeksIleitis: proliferative enteropathy

10-12 weeksPleuropneumonia

4-5 monthsAtrophic rhinitis

6-12 weeksModerate/severe-reinfestation

3 weeksMild-first exposure

Ascarid liver lesions:

8-12 weeksPleurisy

8-16 Enzootic pneumonia

Duration of infection before

the slaughterhouse.

Condition

state gold standard(Prev

.)

Specificit

y

Fast Predictive value

        positive

negative

Pneumonia

69% 73% 85% 88% 69%

Pleurisy

33% 97% 81% 93% 91%

Pericarditis

33% 94%%

63%%

83% 84%

Pleuropneumonia

14% 100%

86% 100%

98%

ascariasis

41% 86% 70% 78% 81%

Frequency of inspection

•3-4 times a year•Arranged by the herd size

Sample size

•To find disease (table)•To find out the prevalence of

the disease (table)

Allowable error

5% 7.5% 10% 12.5% 15%

90% agreement

95% CL

138 61 35 22 15

90% CL

97 43 24 16 11

60% agreement

95% CL

369 164 92 59 41

90% CL

260 115 65 42 29

Pointon, A., Dial, G. 1990. Swine Slaughter-check Procedures Manual. Developed through collaboration of the National Animal Health Monitoring System and University of Minnesota Swine Group.

Pointon, A., Dial, G. 1990. Swine Slaughter-check Procedures Manual. Developed through collaboration of the National Animal Health Monitoring System and University of Minnesota Swine Group.

Pointon, A., Dial, G. 1990. Swine Slaughter-check Procedures Manual. Developed through collaboration of the National Animal Health Monitoring System and University of Minnesota Swine Group.

Sample form swine slaughter surveillance progr

am

Swine Slaughter Surveillance ProgramOwner: …………………………………… Plant ………………………………………..Date ………………………………….Farm number ……………………………. Lot number ………………………………..Inspector ……………………………. No. Submitted ……………………

1X no. Mange Condem Peritonitis Pleuritis Pericarditi Pleuropne White spot Ileitis Atrophic Enzootic pneumonia other0-3 +/- +/- N1-P2 +/- +/- 1-2 +/- 0-5 Neg. Chronic Active

12345678910111213141516171819202122232425

0 ………….1 …………..2 …………..3 …………..

(AMS ………..)tot ……………

Ds. …….Contam. ………….

Total cond…………..

Pos ……….Neg ……….

Tot …………

0 …………1 …………2 …………W/pn …….W/o ……...Pos ……...Neg ……..Tot ………

Pos ……...Neg ……

Tot ………

Pos ……...Neg ……

Tot ………

1 ..……...2 …..……

Tot ………

Pos ……...Neg ……

Tot ………

Neg ………1 ………….2 ………….3 …………..4 …………..5 …….……(ARS ……..)tot …………

0 ……………. chronic …………..1-10 ……….. active …………….11-20 ……… neg ………………21-30 ……… (ALS) …………….31-40 ……….>40 ………….

Tot ………….. tot …………..Tot = the total number evaluated for that column, which will include both positives and negatives. This number should be the same for pneumonia, pleuritis, pericarditis, pleuropn. And whitespot. Please fill in all blanks in the summary section to ensure consistency. Tot for ileitis – tot pn. – tot condemned for disease. Total for peritonitis = total for pneumonia + no. condemned forcontamination. Other: U-ulcer (0-3), E-erysipelas, N-nephritis (0-2), SF-sore feet (0-3), LW-lung worm, A-arthritis, TB-tuberculosis, KW-kidney worm, T-tail bitten, AB-abscessation