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VPH > 1- Post-mortem inspection > Flashcards

1- Post-mortem inspection Flashcards

1
Q

What is the aims of the post-mortem inspection

A

Supplement Ante-mortem and detect
- Diseases
- Residues (abcesses from injections) or contaminants
- Contamination
- Other -unfit for human consumption.
- Animal welfare

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2
Q

Who carries out the post-mortem

A

Meat health inspectors commonly but OV will can also (unusual conditions/Emergency situations)

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3
Q

If an animal had arthritis in 1 joint what happens?

A

Partial rejection of that joint only, rest of carcass passes.

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4
Q

What LN do you need to check for TB?

A

Retropharyngeal & mesenteric LN

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5
Q

If a cow has Taenia Saginata (C.Bovis) at slaughter what do you do?

A

If local = partial rejection of heart + freezing
Generalised = Total rejection

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6
Q

What happens if bovine TB is suspected in a carcass

A

APHA notified immediately as it is a notifiable disease

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7
Q

T/F rejection of the whole carcass occurs in fasciola hepatica

A

False (only the liver)

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8
Q

What happens if pericarditis is found in the heart

A

Partial rejection of the heart

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9
Q

What happens if endocarditis is found PM

A

If only heart affected- partial rejection
If heart and skin affected- total rejection

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10
Q

If a sheep has Taenia Ovis (C. ovis) at slaughter what do you do?

A

Localised- partial rejection of heart
Generalised- total rejection

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11
Q

What is Hydatidosis?

A

Caused by dog tapeworm = Echinoccus granulisos

Causes cysts located in lungs, liver

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12
Q

What pathological feature is seen in ascaris suum?

A

Milk spot on the liver

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13
Q

What happens if pneumonia seen PM

A

Partial rejection

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14
Q

Describe a control program for hydatidosis

A

Educate public.
Treat dogs (praziquantel).
Control access by dog to offal.
Good meat inspection => condemn offal

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15
Q

What happens if Milk spot seen in liver

A

Partial rejection of liver

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16
Q

What happens if peritonitis is seen PM

A

Depends on severity to if full or partial rejection

17
Q

List some reasons for full carcase condemnation

A

Emaciation
Jaundice
Fevered (Septicaemia/Toxaemia)
DOA, DIL, Unborn Or under 7 days
Generalised Oedema
Pyemia- lots of abscesses around the carcass???
Abnormal odours (uraemia, acetonemia)
No ante-mortem

18
Q

List some signs seen in emaciated carcases

A

Shrunken
pale/ wet muscles
slimy/ gelatinous
Lymph nodes enlarged/watery

19
Q

What is melanosis? & is the carcass passed at slaughter?

A

Increased melanin in tissues

Partial rejection of affected tissue

20
Q

Who does the health marks

A
  • OV
    • MHI- generally them
    • FBO
      Always done under supervision of OV
21
Q

What is the procedure that is followed when performing a PM

A

Take in to account AM
View all external surfaces
Look for any evidence of notifiable/zoonotic diseases
Take into account FCI- mostly in poultry
Must include carcases and accompanying offal

22
Q

If there is no evidence of generalised disease or recent medication, what happens

A

The carcase is passed for human consumption

23
Q

If during PM there is evidence of recent meds, what happens

A

Test for residues
-Passed for human consumption if neg
- Condemn carcass if positive

24
Q

If there is evidence of localised disease condition at PM, what is the next step and the outcome

A

Remove affect tissue
Rest passed for human consumption

25
Q

List 4 reasons for total rejection of cow carcase

A

Oedema/ emaciation
Generalised TB
pyaemia/ multiple abcesses
Septicaemia/ fever
Hydatidosis
Jaundice
Navel ill
Abnormal odour
Cysticercus bovis- in multiple locations
Contamination

26
Q

List 4 reasons for total rejection of sheep carcase

A

Septicaemia/ fever
Jaundice
contamination
Cysticercus ovis- generalised
Hydatidosis
Emaciation/ generalised oedema
multiple abscess
generalised tuberculosis
polyarthritis
contamination

27
Q

What additional inspections are requires if bovine TB is suspected

A

the prescapular and superficial inguinal lymph node must be inspected

28
Q

What 4 things could cause lungs to be rejected at PM

A

pneumonia
pleurisy
lungworm
abscesses

29
Q

What is another name for Distomatosis

A

Liver fluke- caused by Fasciola hepatica

30
Q

What 3 things do you take samples to test for at the abattoir

A

Aujezsky’s disease
Residues
Trichinella

31
Q

What is the procedure for testing for Trichinella

A

Breeding pigs, all wild boars
testing of muscle tissue
condemn carcase until passed test

VPH (32 decks)

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