Health assessment from the slaughterhouse

1. Health assessment
from the
slaughterhouse

2. pneumonia
• acute
• confluent with
normal lung or
swollen
• rounded edges
to lobes
• soft, meaty
texture
• moist exudate
• chronic
• shrinkage of
affected portio
n
• sharp edges to
lobes
• firm texture
• dry
• catarrhal

3. Straw, B., Backstrom,
L. Leman, A. 1986.
Evaluation of swine a
t slaughter, Part 1 - T
he mechanics of exam
ination and epidemiol
ogic considerations.
Compendium of Cont
inuing Education for
Practicing Veterinaria
ns. 8: 541-548

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

5. Scalding water aspiration-
lung
From A Colour Atlas of Meat Inspection. J.
Infante Gil, J. Costa Durao Wolfe Publishing Ltd

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

7. Acute
oedema-
lung
From A Colour Atlas of Meat Inspection. J.
Infante Gil, J. Costa Durao Wolfe Publishing Ltd

8. Enzootic pneumonia-lung
From A Colour Atlas of Meat Inspection. J.
Infante Gil, J. Costa Durao Wolfe Publishing Ltd

9. 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

10. 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

14. Pericarditis And
peritonitis

18. Pleuropneumonia
•Viral bleeding, skin abscesses,
abscesses
•The end of the lobe

20. Abscessation / arthritis
•Muscular lymph nodes,
abdominal cavity, spinal cord,
injection site.

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

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

23. Ascariasis
•Grade 1: milkspot <10
•Grade 2: Milkspot> = 1
•Or maybe save: yes or no

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

27. 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%

28. sarcoptic
mange
Grade
1Pointon, A., Di
al, G. 1990. Swi
ne Slaughter-che
ck Procedures M
anual. Develope
d through collab
oration of the N
ational Animal H

29. sarcoptic
mange
Grade 2
Pointon, A., Dial,
G. 1990. Swine
Slaughter-check P
rocedures
Manual. Develop
ed through collab
oration of the Nat

30. sarcoptic
mange
Grade 3
Pointon, A.,
Dial, G. 1990. S
wine Slaughter-
check Procedure
s Manual. Devel
oped through c
ollaboration of t

31. Pointon, A.,
Dial, G.
1990. Swin
e Slaughter-
check Proce
dures
Manual. De
veloped thr
ough collab
oration of t
he National
Animal Heal
th Monitori

32. Ileitis
•the end ileum
•proliferative enteropathy (PE)
proliferative intestinal
adenomatosis (PIA)

35. 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

36. •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.

37. Atrophic rhinitis
Pointon, A.,
Dial, G. 1990.
Swine
Slaughter-
check Procedu
res Manual. D
eveloped thro
ugh collaborat
ion of the Nati
onal Animal H

38. 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

39. Subacute
interstitial ne
phritis-kidne
y
From A Colour Atlas of Meat Inspection. J.
Infante Gil, J. Costa Durao Wolfe Publishing Ltd
1990

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

41. 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

42. 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
8-16Enzootic pneumonia
Duration of
infection before
the
slaughterhouse.
Condition

43. state gold
stan
dard
(Prev
.)
Spec
ificit
y
Fast Predictive
value
posit
ive
nega
tive
Pneu
monia
69% 73% 85% 88% 69%
Pleuri
sy
33% 97% 81% 93% 91%
Perica
rditis
33% 94%
%
63%
%
83% 84%
Pleuro
pneu
monia
14% 100
%
86% 100
%
98%
ascari
asis
41% 86% 70% 78% 81%

44. Frequency of inspection
•3-4 times a year
•Arranged by the herd size

45. Sample size
•To find disease (table)
•To find out the prevalence of
the disease (table)

46. 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

47. Pointon, A., Dial, G. 1990. Swine
Slaughter-check Procedures Manual. D
eveloped through collaboration of the
National Animal Health Monitoring Syst

48. Pointon, A., Dial, G. 1990. Swine
Slaughter-check Procedures
Manual. Developed through colla
boration of the National Animal He

49. Pointon, A., Dial, G. 1990. Swine
Slaughter-check Procedures Manual. Dev
eloped through collaboration of the Nati
onal Animal Health Monitoring System an

50. Sample form swine
slaughter surveillance progr
am

51. SwineSlaughterSurveillanceProgram
Owner:…………………………………… Plant………………………………………..Date………………………………….
Farmnumber……………………………. Lotnumber………………………………..Inspector……………………………. No.Submitted……………………
1Xno. Mange Condem Peritonitis Pleuritis Pericarditi Pleuropne Whitespot Ileitis Atrophic Enzooticpneumonia other
0-3 +/- +/- N1-P2 +/- +/- 1-2 +/- 0-5 Neg. Chronic Active
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
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=thetotalnumberevaluatedforthatcolumn,whichwillincludebothpositivesandnegatives. Thisnumbershouldbethesameforpneumonia,pleuritis,pericarditis,pleuropn.Andwhite
spot. Pleasefillinallblanksinthesummarysectiontoensureconsistency. Totforileitis–totpn.–totcondemnedfordisease. Totalforperitonitis=totalforpneumonia+no.condemnedfor
contamination. 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