Ike jime
Encyclopedia
or is a method of paralyzing and bleeding fish
to maintain its quality. The technique originated in Japan
, but is now in widespread use. It involves the insertion of a spike quickly and directly into the hind brain, thereby causing immediate brain death. A fish brain is usually located slightly behind and above the eye. When spiked correctly, the fish fins flare and the fish relaxes, immediately ceasing all motion. The blood contained in the fish flesh retracts to the gut cavity, which produces a better coloured and flavoured fillet. This method seems to minimize the pain.
It is very similar to the technique used on frogs in laboratories
called pithing
.
Another technique described in APEC Air shipment of live and fresh fish and seafood guidelines is "a cut is made toward the front of the flatfish severing the major artery and the spinal cord. Placement of the cut is made to preserve the greatest amount of flatfish flesh. This paralyzes the flatfish. A second cut is made in the tail to hasten the removal of blood. Flatfish are then chilled slowly to maintain circulation and facilitate the bleeding process. After the flatfish have been bled, they are transferred to a salt/ice water slurry and chilled" to 12 °C.
Ike Jime has been successfully used manually in the tuna and yellowtail industries, along with limited use in sport and gamefishing, and provides a rapid slaughter technique with concurrent quality benefits. Rather than cutting their throats and leaving them to die by bleeding, research indicates it is better to use ike jime and put the fish straight into an ice slurry. Fish being exported to Japan
and certain other markets should not be allowed to die naturally, but should be killed immediately after being brought on board by using Ike Jime method.
Fish
Fish are a paraphyletic group of organisms that consist of all gill-bearing aquatic vertebrate animals that lack limbs with digits. Included in this definition are the living hagfish, lampreys, and cartilaginous and bony fish, as well as various extinct related groups...
to maintain its quality. The technique originated in Japan
Japan
Japan is an island nation in East Asia. Located in the Pacific Ocean, it lies to the east of the Sea of Japan, China, North Korea, South Korea and Russia, stretching from the Sea of Okhotsk in the north to the East China Sea and Taiwan in the south...
, but is now in widespread use. It involves the insertion of a spike quickly and directly into the hind brain, thereby causing immediate brain death. A fish brain is usually located slightly behind and above the eye. When spiked correctly, the fish fins flare and the fish relaxes, immediately ceasing all motion. The blood contained in the fish flesh retracts to the gut cavity, which produces a better coloured and flavoured fillet. This method seems to minimize the pain.
It is very similar to the technique used on frogs in laboratories
Animal testing
Animal testing, also known as animal experimentation, animal research, and in vivo testing, is the use of non-human animals in experiments. Worldwide it is estimated that the number of vertebrate animals—from zebrafish to non-human primates—ranges from the tens of millions to more than 100 million...
called pithing
Pithing
Pithing is a slaughtering technique in which the brain of the animal is destroyed by a tool called a pithing cane or rod, which is inserted into the hole which is created by captive bolt stunning. Trained slaughtermen will be experienced in the use of captive bolt weapons...
.
Another technique described in APEC Air shipment of live and fresh fish and seafood guidelines is "a cut is made toward the front of the flatfish severing the major artery and the spinal cord. Placement of the cut is made to preserve the greatest amount of flatfish flesh. This paralyzes the flatfish. A second cut is made in the tail to hasten the removal of blood. Flatfish are then chilled slowly to maintain circulation and facilitate the bleeding process. After the flatfish have been bled, they are transferred to a salt/ice water slurry and chilled" to 12 °C.
Ike Jime has been successfully used manually in the tuna and yellowtail industries, along with limited use in sport and gamefishing, and provides a rapid slaughter technique with concurrent quality benefits. Rather than cutting their throats and leaving them to die by bleeding, research indicates it is better to use ike jime and put the fish straight into an ice slurry. Fish being exported to Japan
Japan
Japan is an island nation in East Asia. Located in the Pacific Ocean, it lies to the east of the Sea of Japan, China, North Korea, South Korea and Russia, stretching from the Sea of Okhotsk in the north to the East China Sea and Taiwan in the south...
and certain other markets should not be allowed to die naturally, but should be killed immediately after being brought on board by using Ike Jime method.
External links
- Smart, Alastair Fish Welfare at Harvest: Killing Me Softly
- Humane Killing of Live Seafood Western Australia Department of Fisheries.
- Preparing fish FISH.govt.au.