Public Health: Formative Assessment Red Meat Flashcards
What ages are considered to be SRM in routinely processed ovine carcases?
1. Skulls, tonsils and spinal cord and eyes
2. Whole body of animal that died outside the slaughterhall and not further dressed
3. Spleen, intestines excluding the ileum, vertebral column
- If over 12 months- first incisor
- If over 12 months- first incisor
- Not SRM unless contaminated with SRM or isn’t seperated from other SRM
True or false:
Stunning causes mass brain depolarisation followed by rapid repolarisation
False
On examination of the FCI it is noticed that a bovine is an inconclusive reactor. The animal appears extremely distressed
What protocols should the abbatoir adopt
The animal should be killed as soon as possible on grounds of welfare but slaughterhall should be cleaned and disinfected after the carcase is processed
If a porcine animal dies in lairage, which category should the animal be disposed as?
Category 2
What should be done if scrapie is suspected?
OV must notify APHA immediately before action
Why are these two carcasses red?
Left- focally extensive from hypostatic congestion from pooling of blood from ventral position after death
Right- diffusely red due to generalised congestion associated with septicaemia
What corrective action would be adequate for an altered body part and/or carcase to be considered fit for human consumption?
Trimming of contamination
What are the signs of an effective stun?
- Normal rhythmic breathing stops
- No attempt of the animal to right itself
- Body and muscles become immediately rigid, followed by varying degrees of involuntary movement of the limbs
When can a carcasse be considered for human consumption without an ante-mortem by an OV?
If it is hunted wild game and is accompannied by a signed hunters declared and has passed post-mortem inspection
Whos responsibility is movement licenses?
The FBO responsibility
What causes this?
How is it and the carcass disposed of?
Blood splash
Affected organ unfit- type 2
Carcass fine
What causes the following lung effects?
Pasturella like pneumonia
Affected organ unfit- category 2
What causes this?
How is it disposed?
Melanosis
Affected organ disposed- part 3 ABP
What can cause this?
How is it disposed?
Mycoplasma like pneumonia
Affected organ- type 2
What can cause this?
Pericarditis
Affected organ- category 2
What organs in bovine over 8 months require visual inspection and further examination?
- Head, throat- incision of retropharyngeal LNs, incision of external masseters and internal
- Trachea, oesophagus and lungs- incision and examination of the bronchial/mediastinal LNs, palpation of lungs
- Pericardium and heart
- Diaphragm
- Liver, hepatic and pancreatic LNs
- GI tract, mesentery, gastric/mesenteric LNs,
- Spleen
- Kidneys
- Pleura/peritoneum
- Genital
- Udder and LNs
What can cause this?
Cysticercus tenuicollis
No zoonotic potential- affected organ unfit- cat 2
A liver is dropped on the floor and put back what should be done?
- Considering the size of the organ will be rejected
- Actions should be taken in assessing the cause and preventing from happening again
- Enforcement chain should be followed because slaughter house failed to correctly apply measures of strict hygiene
What should be done is a large amount of a group of pigs have fresh medium sized lacerations?
- OV- collect evidence- ante/PM
- No concern of public health- new wounds
- Animals proccessed as routine
- Trading standards notified
What can cause these changes?
- Acute changes from liver fluke
- Category 3
- Affected organ cat 3
6 pigs are found with the following lesion what should be done and considered?
- Several affected- infectious aetiology
- APHA should be notified immediately
- Batch detained until further instructions
Could be foot and mouth
What can cause the following changes?
Chronic changes of cysticercus tenucollis
* Affected organ- Cat 2
* No zoonotic potential
Name the species
Bovine
What can cause this?
Embolic hepatitis
* Unfit for human consumption- cat 2
* Humans likely to be infected
How should chronic liver fluke changes of a liver be disposed of?
Category 3
What should be done for a 50 month old cow that arrived late to the abattoir?
- FBO should report case to collector for later testing of BSE
- OV should report the case to APHA and make a referral to trading standards as suspected welfare
- OV should not perform PM of the animal in the lairage
What extra LNs need to be inspected for TB reactors?
- Superficial inguinal lymph nodes
- Prescapular lymph nodes
What lymph nodes are routinely inspected in cattle?
- Retropharngeal
- Parotid
- Submandibular/maxillary
- Bronchial
- Mediastinal
- Lungs
- Pleura
- Hepatic
- Liver
- Mesenteric
- Supramammary
