PM Inspection Flashcards

1
Q

What legislation is related to PM Inspections?

A
  • Regulation (EC) 854/2004 (Purpose, procedures, decisions)

- Regulation (EC) 853/ 2004 (FBO standards)

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2
Q

Who performs PM inspections?

A
  • MHI does the technical task of the PM on the floor whilst the OV is the technical member of the team.
  • OV will carry out PMs too e.g. in emergency slaughter cases
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3
Q

What does MHI stand for?

A

Meat Hygiene Inspector

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4
Q

What does ‘red’ offal include?

A
  • Lungs
  • Heart
  • Kidneys
  • Liver

(Green= stomach/ intestines??)

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5
Q

What should PM inspections take into account?

A
  • AM findings
  • View all external surfaces
  • Take into account FCI
  • Take place after slaughter without delay
  • Include carcasses + offal
  • Look for NFDs/ zoonotic diseases
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6
Q

What are the possible outcomes of a PM inspection?

A
  • Pass meat as fit for human consumption
  • Declare meat unfit for human consumption
  • Detain meat for further examination following rectification

(Rectification: removing part of the carcass that is not fit for consumption )

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7
Q

What condition should you suspect and check for if you find tumours in cattle?

A

Enzoonotic bovine leukosis

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8
Q

What does fevered meat mean?

A
  • Active hyperaemia
  • Pathological condition
  • Congestion of blood vessels (can be deep fiery red)
  • Meat is sticky/ exudative
  • Meat pits on pressure
  • Lymph nodes swollen
  • Total condemnation
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9
Q

Describe septicaemic carcasses

A
  • Dark red
  • Bacteria multiplying inblood stream causing widespread organ damage
  • Staphs/ streps
  • AM: dull, fever
  • PM: fevered, no rigor, high pH, enlarged LN
  • Not fit for consumption
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10
Q

Describe melanosis on PM inspections

A
  • Congenital deposits
  • Cattle: meninges, bones, lungs, liver
  • Pigs: udder
  • Sheep: lungs, liver
  • Aesthetic condemnation of affected part
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11
Q

What is the consequence of findings jaundice on a PM inspection?

A
  • May be haemolytic (prehepatic), toxic (hepatic) or obstructive (post hepatic)
  • Toxic often ragwort toxicity
  • Post hepatic often parasitic, tumours etc
  • Total condemnation
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12
Q

What is carotene pigmentation?

A
  • Confined to fat
  • Hereditary factor
  • Common in Guernseys/ Jerseys
  • Pass carcass
  • Lower value due to aesthetics
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13
Q

What findings might make you suspect toxaemia on a PM inspection?

A
  • Dull/ greyish appearance
  • PM: fatty change (liver/ heart etc), lung emphysema, distended gall bladder, enlarged grey LN
  • Total condemnation

(On AM: severely ill, dull)

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14
Q

Describe actinobacillosis

A
  • Inflammation to base of tongue, soft palette
  • Abscesses, ulcers, fibrosis
  • Submandibular/ retropharyngeal node commonly affected
  • May effect viscera
  • Local condemnation except where emaciation is manifest
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15
Q

Describe development of TB

A
  • Primary lesion= portal of entry (gut or lung)
  • 3 weeks= LNs enlarged and grey areas on surface
  • Yellow caseous material which calcifies
  • Serous membrane- velvety, grape like
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16
Q

What is pyaemia?

A
  • Circulating pyogenic bacteria
  • Forms septic emboli (metastatic abscesses)
  • Hemorrhagic infarcts form in kidney
  • Develop into abscesses
  • Total condemnation
17
Q

What is caseous lymphadenitis?

A
  • condition of sheep/ goats
  • Spread by shearing. dipping within 2 wks
  • bacteria lives in commercial sheep dip for 24 hrs
  • Ruptures LNs
  • Characteristic laminated appearance in LNs
18
Q

How do you judge caseous lymphadenitis during a PM inspection?

A
  • Caseous +emactiation
  • Multiple acute + actively progessive
  • Multiple inactive BUT widespread
  • Normally total condemnation but can be partial
19
Q

What causes distomatosis?

A

Fasciola hepatica

Dicrocoelium dendriticum

20
Q

Describe hydatidosis

A
  • Caused by Echinococcus granulosis
  • Cysts found in lungs, liver of all species
  • Causes hydatid sand in tissues under pressure
  • Affected organs/ carcasses condemned to stop cycle
  • No human risk
21
Q

How do you control hydatidosis?

A
  • Educate public
  • Control access by dogs to offal
  • Treat dogs
  • Good meat inspection