Ostrich Skin Removal, Storage, Transportation and Grading of Ostrich Skins - Presented at WOA Chile Conference 2003.
Candido Carrillo Gonzalez
Skin Details
Quill Areas
A(1) – A(4) Main
Diamond Area
B
Neck
C(1) – C(2) Upper
Belly Flap
C(3) – C(4) Lower
Belly Flap
Skin Removal
- The room for removing the skins should be
14 to 16º C (57.2 to 60.8º F) to ensure the skins are maintained within a
cold chain.
- Once bled and defeathered, first remove the
shin skins from the lower legs. The scales of the shin should be in the
center otherwise they are of no value.
- Invert the bird so that it is hanging by
its wings. Follow the cutting lines as per the diagram. Deskinning with
the use of a cradle is not recommended.
- For skin removal, use only one operator.
Using more than one operator can cause an operator to damage the skin with
cuts as the other operator moves the bird.
- The neck of the bird is typically trimmed
20 cm (7 3/4 inches) above the feather line, and the leg some 10 to 15 cm
(4 to 6 inches) above the "knee".
- Hose down the skin with water to remove
blood and cool the skin.
- Use a blunt tool to remove access fat. Do
not use a knife as this can accidentally cause cuts.
- Place the skin flesh side up flat on a
pallet. Ensure that the pallet has some form of protection e.g. a sheet of
cardboard to avoid damage from the nails and the slats in the pallet.
Similarly avoid contact with any metals such as the salt shovel against
the skins.
- Use fine grain salt to heavily salt down
the skin. Avoid coarse salt. The salt should cover all parts of the skin.
Skins are living organisms. Salt dehydrates the skin, thereby restricting
any bacterial growth. If insufficient salt is used, then this dehydration
process is incomplete and bacterial growth will eat into the skin causing
damage. Use plenty of salt. Typically 5 kg. of salt per skin.
- It is best if the pallet is on a slope to
encourage drainage. Similarly it is best if the skin is not folded at this
stage to assist in the draining process.
Skin Storage
- Power wash with cold water after removal to wash off dirt and blood
- Place flat with flesh upwards on a pallet
- If first skin on the pallet
place cardboard so skins never on contact with iron (nails)
- Use fine grain salt
- Place salt over skin ensuring complete coverage of skin
- After 7 days, shake off old salt, and re-salt for storage
- Store in cold environment 4 to 10 C
- Never freeze
- Ensure skins remain spread out (do not fold)
Skin Transportation
Use refrigerated transportation
Never use plastic as skins need to breathe
Skin Grading
No grading system exists for grading in raw
Buyers use their own grading
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