1. Live pig carrying in and
pending
1) When the pigs get out of the transport vehicle, exiting
area should be leveled with the height of the vehicle and
the exiting passage way should be angled upward (7¡Æ) so that
the pigs can walk down themselves, thereby reducing stress
for the pigs
2) To prevent stress, pigs should be stabilized for 4~12 hours
after carrying in
3) Pigs carried in previous day should be pended within a
facility with food and water supply
4) Walls should be installed in the pending facility so that
the pigs cannot see the pig in the next space. Pigs are sensitive
to environmental change, especially when they see new pigs,
they become unstable and generates stress
5) Prior to slaughtering, pending facility should be dark
to stabilize the pigs
6) Installing concrete walls and steel plate as a fence so
that pending pigs cannot see each other is effective in lowering
stress level for pigs
7) Pigs carried in the previous day should be pended within
a facility with water supply and stabilized and eating moderated
8) Pending facility should be as dark as possible and electric
execution area should be bright. This makes use of the pigs
psychology of following light which makes pig chasing easier
2. Pig chasing into the processing
facility
1) Because pigs do not like going downhill, passageway should
be angled upward.
2) Both sides of the passageway should be in walls so that
the surrounding is not visible and the passageway dark to
utilize pigs' instinct to move forward in the dark
3) Head suppressing instruments should be installed so that
the pigs cannot put their head up on the passageway
3. Electric Execution Operation
1) Appropriate electric execution can be achieved by applying
150~200V 1.25A electric current into the brain(cerebellum)
for 3~5 seconds
2) Automatic electric execution system installed in the developed
nations can minimize stress as well as designed to automate
without any human input
4. Bloodletting Operation
1) When pigs faint after electric shock, bloodletting should
be carried out with a sterile bloodletting knife
2) The knife should be directly stabbed and pulled out from
the designated area to cut the carotid artery. The length
to stab should be standardized to around 7~8cm
3) When bloodletting, the stabbed part should be as small
as possible (approximately 7cm)so that there are no unnecessary
part left from the incision operation of the wounded flesh
4) Pigs should die by loss of blood and more than 4L of blood
should be spilled out within 30 seconds after the bloodletting
starts
5) Correct bloodletting operation should always be carried
out with right posture
5. Hanging up (Suspension)
1) Suspension operation should always be performed with the
right posture
6. Cleansing Pig's Body Surface
1) Ineffective water sprinkling To maintain cleanliness within
the pending area should be avoided as much as possible
2) All pollutant on the surface of the body after suspension
of finished bloodletting pig should be cleansed
3) Cleansing liquid should not be dropped on to the floor
but designed to be drained in to the drainage surface and
pipe
<Operation through
Skin Peeling Process>
7. Re-suspension & Leg Amputation
A. Re-suspension
1) Skin peeling starts from the hind leg carpal bone and the
entire hind leg area. The knife should always start from the
interior (bone) and exit through the exterior (fur) to cut
off the leather
2) Gambrel insertion part should be inserted between the Achilles¡¯
tendon
B. Amputation of the forelimb
1) With a sterile knife, cut through the leather between the
forelimb carpal bone and metacarpal with the blade facing
the outward
2) Knife and hand should be sterilized and the knife put into
a sanitizer
3) With a sterile knife insert the blade through the open
skin to cut the ligament between forelimb carpal bone and
metacarpal and then cut off the leg entirely
4) Amputated leg should be inserted into the return conveyer
and the knife and hand sterilized and also the knife stored
in a sanitizer
5) With a sterile knife hold the leather with the left hand
and pulling to peel off the skin
6) Peeled off skin should be put into the return conveyer
7) After sterilizing knife and hand, knife should be kept
in the sanitizer
C. Hind Leg Amputation
1) With a sterile knife, cut through the leather by holding
the front of the leg with the left hand and the blade facing
outward
2) Knife and hand should be sterilized and the knife put into
a sanitizer
3) With a sterile knife with the left hand holding the peeled
off skin and pulling forward, first peel off the inside part
4) By holding the outward skin area of the leg with the left
hand prevent the skin from being separated and rolled up while
peeling
5) While holding the leg strongly with the left hand, cut
through the ligament between the hind limb carpal bone and
hind leg femur to cut off the leg entirely
6) After sterilizing knife and hand, knife should be kept
in the sanitizer
8. Amputation of the Head
1) While holding down with the left hand, with a sterile knife,
cut from the head through the joint of the occiput(back of
the head) to cut off the head
2) Amputated head is hung on the hook of the red organ head
part return conveyer
3) After sterilizing knife and hand, knife should be kept
in the sanitizer
9. Preliminary Peeling Operation
A. Tail cutting, Chest & Abdominal Cutting
1) With a sterile knife, cut off the tail
2) Cut off tail should be rapidly returned in a vacuum processing
system to the processing room or a container for rendering
(with lid)
3) After sterilizing knife and hand, knife should be kept
in the sanitizer. With a sterile knife, peel off the skin
in the bottom area
4) Peel off the skin from the chest to the abdominal area.
Blade of the knife should face from the inside (the side with
fat) to the outward and cut as if pulling up the knife
B. Bottom and inside part of hind leg skin peeling
1) Using a barker or a knife, cut downwards for peeling
2) Holding the left side of the abdominal skin, cut from the
inside of the hind leg to the abdominal ribs
3) Only cut through the inside of the hind leg and the relaxed
part of the abdominal and armpit area
4) Barker and knife should be sterilized and hands washed
after finishing each step
5) With a sterile knife, cut off the peeled bottom skin
6) Cut off skin should be put into a sanitized suit, knife
and hand sanitized and the knife put into a sanitizer
C. Peeling off from the abdominal to shoulder area
1) With a knife or a specialized leg cutter, cut off both
forelimbs between the carpal bone and the metacarpal bone
2) While holding the forelimb with the left hand, cut off
the forelimb and put the cut off forelimb into the return
system slot
3) When using the knife, sterilize both knife and hand and
store knife in a sanitizer
4) From the inside of forelimb carpal bone cut through skin
heading humerus with the blade heading outward
5) From the inside of the chest cut through to front of chin
with the knife facing outward
6) Peel off skin from the shoulder area to the head area
7) Sanitize both knife and hand and store knife in a sanitizer
and then start the process again with a sanitized knife
10. Skin Peeling with Machinery
1) Place dressed carcass on the supporting place on the right
side
2) Place the preliminary peeled off hind leg skin onto the
pin on the center of the drum body
3) To prevent peeled skin off getting torn while setting,
uniformly set the skin without the skin being rolled up
4) Switch on the machine and let the dressed carcass move
to the left side where the knife is and peel off the pig's
skin
5) Do not let the supporting rim to come into contact with
the carcass or the skin. Peeled off skin should be immediately
moved to a designated area outward of the facility
11. Anus Removal Operation
1) This process is known to require high skilled work due
to the high likelihood of infection. The work involves taking
out the anus and rectum without damaging the intestinal tract.
The best way is to use a hand machinery to do the job simply,
quickly and hygienically.
2) By switching the machine on at the anus, suck in the excrements
and cut off exterior of intestinal tract
3) After finishing the job, sanitize the machinery with hot
water above 83¡É
12. Abdominal Cutting and Chest
Dividing Operation
1) Take out a sanitized knife
2) Cut from the abdomen through to the chest area
3) Handle of the knife should face the inside and cut downward
4) When cutting through the chest, place the blade facing
downward at angle and pull the carcass toward the worker and
cut downward
5) Knife and hand should be sanitized and knife put in a sanitizer
6) Chest cutting should be done with a specialized saw
14. Removal of White Organs
1) Take out a sanitized knife
2) Rubber gloves should be long enough to cover the entire
forearm to maximize hygiene
3) Cut through the center of the abdomen. When doing this,
use the handle part of the blade so that the intestines are
not damaged
4) Together with the intestines pull down the bladder toward
the worker
5) Use the knife as support while pulling the large and small
intestines from the abdominal cavity
6) When the large and small intestines are cut off, large
and small intestine removal is done
7) Cut off white organs should be put into the organ return
conveyer
8) Knife, hand and apron should be sanitized and knife stored
in a sanitizer
14. Removal of Red Organs
1) Red organs, such as the liver and the stomach should be
cut off with a sanitized knife
2) While pulling down the red organs, stomach, liver, bronchus
and esophagus should be cut off together
3) Cut off red organs should be hooked onto the transporting
rail
4) Knife and hand should be sanitized and the knife stored
in a sanitizer
5) Red organs deteriorate faster than the white organs; therefore
the two are not processed together. The reason is to reduce
the possibility of mutual infection and quality reduction
15. Pig Slicing Operation
1) Make sure that the dressed carcass is located exactly where
it will be sliced into two parts
2) Sanitized slicing saw is located on the coccygeal vertebra
3) Once the slicing operation is finished, put the slicing
saw in a sanitizer. Hand and apron should be cleansed
16. Carcass Cleansing
1) Water pressure should be between 1.5 and 2.0 Bar
2) Cleansing should start at the top and work downward
3) Quality of cleaning water should be drinkable quality
4) Water temperature should be around 20¡É
5) Water on the surface should be removed with a sanitized
knife once the cleansing is finished. The carcass is then
transported to the cooling room
<Operation through
Scalding Process>
17. Fur removal
1) After the pig goes through soaking tank, the pig is automatically
transported into fur removal machinery
2) When selecting the fur cutting machinery, tension and rotary
force of the rubber bar should be considered so that they
o not damage the surface of the skin or leave marks
3) Soaking and cutting of fur should be processed until there
is only minimum amount of hair on the skin
4) Once the fur removal is finished, re-suspension operation
is done by hand
18. Re-suspension
1) Take out a sanitized knife
2) Cut between hind leg tarsal bone and metatarsal bone of
a pig finished with fur removal
3) Insert the gambrel piece between the Achilles¡¯ tendon in
the cut area
4) Place the gambrel on the trolley hook and re-suspend the
pig on the transport rail
19. Surface Moisture Removal,
Small Hair Removal, Second Surface Cleansing
A. Moisture Removal Operation
1) Re-suspended pig goes into the moisture removal equipment
through automatic transport system
2) Once the pig is located in the center of the equipment,
rubber bar from both sides automatically rotate and removes
the moisture on the pig's surface
3) Once moisture is removed, rotation stops and the pig is
automatically transported out of the machinery through the
automatic transport rail
B. Small Hair Removal Operation
1) Once the pig is located in the center of the equipment,
gas burners on both sides turn up and burn the small hair
on the surface of the skin
2) Fire power is automatically regulated by the system and
once the hair is removed, pig is transported to the cleansing
equipment
C. Second Surface Cleansing
1) Once the pig is located in the center of the equipment,
water supply system and rubber bar from both sides activate
to cleanse the surface of pig
2) Finally pressurized cleansing liquid is sprayed onto the
surface to finish cleansing
3) Cleansing liquid should not be dropped on to the floor
but designed to be drained in to the drainage surface and
pipe
20. Amputation of the Head and
4 Legs
A. Amputation of the Head
1) Take out a sanitized knife
2) Sub maxilla lymph, retropharyngeal node lymph, bottom ear
lymph is cut. Also cut off between the back head bone and
first cervical vertebrae
3) Cut off head is hooked onto the specialized hook
4) Knife and hand should be sanitized and the knife stored
in a sanitizer
B. Amputation of 4 Legs
1) Take out a sanitized knife or a leg amputator
2) For the forelimb, cut between carpal bone and metacarpal
bone and for the hind limb, cut off between tarsal bone and
metatarsal bone
3) Cut off leg is put into the return conveyer
4) Knife or leg amputator should be sanitized and put in to
a sanitizer
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