Slaughter related Flashcards
What are animal by products?
products of animal origin not intended for human consumption
ABP category 1
Includes specified risk material, whole bodies ruminants and animals killed in TSE control programmes.
Should be stained with patent blue dye
Labelled category 1 - for disposal only
Should be rendered followed by incineration/landfill.
incinerated or rendered followed by incineration/landfill
ABP Category 2
Includes whole bodies of pigs & poultry, material rejected at meat inspection and animal products containing veterinary residues.
Stained with brilliant black
labelled category 2 - not for animal consumption
ABP category 3
Can be disposed of or processed for pet food.
E.g. hides, feathers, chicken feet.
Specified risk material (SRM)
parts of cattle, sheep & goats which have the potential to spread TSEs to humans and other animals
SRM cattle
All ages: tonsils, last 4m of intestines, caecum and mesentery.
>12mo - + head - including brain, eyes, spinal cord
>30mo - + entire vertebral column
SRM sheep/goats
> 12 mo - head including brain, eyes & SC.
Not horns
Rules on feeding mammalians protein
None in farm animal feeds.
None fed to species or origin.
Goads can only be used
on the hindquarters of adult cattle & pigs refusing to move forward when the way ahead is clear.
Physical signs of an effective stun
Animal collapses immediately and stops breathing.
Front legs and neck extended, hind feet flexed into abdomen.
No corneal reflex, glazed expression in eyes.
Relaxed lower jaw, tongue hanging out.
Carcase must be split if
soiled, pigs >4wks, cattle >6mo, sheep >1yr
PSE Pork
Pale soft exudative meat
Seen in well muscled pigs due to severe acute stress prior to slaughter - increased lactic acid production - pH of muscle falls rapidly
Fit for human consumption
DFD condition
Dark Firm Dry. Usually beef.
Dark colour and dry/stick texture.
Due to chronic stress - glycogen stores used up in muscle.
Usually fit for human consumption, depends on severity.
Cysticercus ovis
Intermediate stage of the dog tape worm Taenia Otis.
Oval 3-8mm cysts found in muscles with a good blood supply.
Reject affected area, cold treat rest of carcase.
Reject whole if generalised.
TSE testing
random selection of sheep >18mo for human consumption - brainstem & cerebellum
Carcase & offal released following result
DOA/in lairge - head sent to APHA
