JP3668757B2 - Killed large fish - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a large fish such as tuna that has been killed.
[0002]
[Prior art]
When catching large fish such as tuna, it is necessary to kill and process them quickly and reliably in order to keep the fish fresh. As a treatment method suitable for such killing treatment, a linear killing tool is inserted from the white crest portion of the head of the fish body or the cut surface of the head, and this is reached inside the spine to destroy the central nervous tissue. Methods are conventionally known. In addition, the above-mentioned killing processing tool is killed and left in the processed fish body, and the processing tool is confirmed in the market to confirm that the fish body has been processed by the above method. It is also known to notify (see Japanese Utility Model Publication No. 2-3757, Japanese Utility Model Publication No. 4-36624, Japanese Utility Model Publication No. 4-55516).
[0003]
[Problems to be solved by the invention]
Large fish such as tuna that have been killed have been properly treated by inserting the treatment tool close to the tail, but conventionally, one end of the treatment tool is exposed from the head of the fish body. Because it was only, it was difficult to confirm in the market whether the other end had reached the tail.
[0004]
Accordingly, an object of the present invention is to make it possible to easily confirm in the market that the above-mentioned processing tool is securely inserted to the vicinity of the tail and is properly processed.
[0005]
[Means for Solving the Problems]
Since resolve the above problems, the present invention, plug linear killed processing tool inside the spinal column from the head of the fish, in killing the treated large fish comprising brought leaving the processing tool inside the spinal column, said killing One end of the treatment tool is exposed to the outside from the tail of the fish body, and the other end of the treatment tool connected to the one end is exposed to the outside from the head of the fish body.
[0006]
One end of the killing tool can be exposed to the outside from the cut surface of the tail of the fish body, and one end can be exposed to the outside from a notch that reaches the spinal column of the tail of the fish body.
[0007]
Further, the other end of the killing tool can be exposed to the outside from the white crest portion of the fish head, and the other end can be exposed to the outside from the cut surface of the fish head.
[0008]
DETAILED DESCRIPTION OF THE INVENTION
Embodiments of the present invention will be described below with reference to the drawings. The killing tool 1 used in the first embodiment shown in FIG. 1 is obtained by cutting a linear synthetic resin (nylon, polypropylene, etc.) into a predetermined length corresponding to the fish body 2 of a large fish. Its thickness is about 3 to 5 mm. A hollow tube may be used, but in that case, plugs are fitted to both ends.
[0009]
There is a relatively soft white crest in the middle part of both eyes of a large fish body 2 such as a tuna. The above-mentioned white crest portion of the captured large fish body 2 is stabbed or scraped with a blade to make a hole 4 in a part of the skull 3, and the tail portion 5 is cut off. The cut end of the spine 6 appears on the cut surface after the tail portion 5 is cut off.
[0010]
Next, one end of the killing treatment tool 1 is inserted into the hole 4 and pushed forward to be exposed from the inside of the skull 3 through the spinal column 6 to the outside from the cut end on the tail 5 side. By inserting the killing tool 1, the central nervous tissue such as the brain and spinal cord of the fish body 2 is destroyed, and the fish body 2 can be brought to complete death quickly.
[0011]
After completing the killing process, one end 1a of the killing tool 1 is exposed to the outside from the cut surface of the tail part 5 for a required length, and the other end 1b continuous to this end 1a is exposed to the head 8 The required length is exposed to the outside from the side hole 4 and shipped to the market with both ends 1a and 1b exposed. In the market, by confirming both end portions 1a and 1b of the killing treatment tool 1, it can be known that the killing treatment tool 1 is inserted from the head 8 over the entire length of the spine 6.
[0012]
The tail 5 is not completely separated, and a notch 7 reaching the spinal column 6 is provided as shown in FIG. 1 ( d ), and the end 1 a is exposed at the notch 7. Good.
[0013]
In the other embodiment shown in FIG. 2, the head 8 is cut off at the part including the skull 3 or slightly behind it. Cutting and removing the tail 5 is the same as described above. After that, the slaughtering tool 1 is inserted into the spine 6 appearing on the cut surface on the head 8 side, and pierced to the cut surface on the tail 5 side. Also in this case, both ends 1a and 1b of the killing treatment tool 1 are exposed to the outside from the both ends. Without cutting and removing the tail portion 5, the notch portion 7 may be provided as shown in FIG. 1D, and the end portion 1 a may be exposed to the outside from the portion of the notch portion 7. .
[0014]
In this case, since the brain is removed or destroyed by cutting the head 8, the killing device 1 destroys the nerve tissue such as the spinal cord inside the spinal column 6, and promptly causes complete death.
[0015]
【The invention's effect】
As described above, according to the present invention, both ends of one linear killing tool inserted into the fish spine are exposed to the outside from the head side and tail side of the fish body and shipped to the market as they are. Therefore, it can be easily confirmed from the outside that the killing tool is inserted through the entire length of the spinal column and the killing process is properly performed.
[Brief description of the drawings]
1A is a front view of an embodiment, FIG. 1B is a cross-sectional view taken along line bb in FIG. 1A, and FIG. 1C is an enlarged cross-sectional view taken along line cc in FIG. Front view [Fig. 2] Front view of another embodiment [Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Killing tool 2 Fish body 3 Skull 4 Hole 5 Tail part 6 Spinal column 7 Notch part 8 Head

Claims (1)

In a large fish that has been killed by inserting a linear killing tool into the vertebral column from the head of the fish body and leaving the treating tool inside the vertebral column, one end of the killing tool is connected to the vertebral column at the tail of the fish body. A large killed fish characterized in that it is exposed to the outside from the notch that reaches , and the other end of the processing tool continuous to the one end is exposed to the outside from the white crest portion of the head of the fish body.

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