It's a sad day when the manuscript is zero. There are social events tonight. I'll be back home at half past 11. I'm writing until this moment, at 2:21! I'm saying this is not to complain about being tired, but to explain why it's a little late, work hard, and keep working hard!*****

Tuna farming is Japan's most proud fishing technology. In this regard, they are the only one in the world, and only they have mastered tuna farming technology.

This technology is the same as the "Watano cattle" breeding, and is at the top secret level in Japan. If Takata Tezuka hadn't wanted to please Qin Shiou, they would definitely not have been able to visit Izu Shishima.

Of course, Qin Shiou didn't think about visiting at all. He just wanted to take away these bluefin tunas.

Bluefin tuna is the most precious fish in the genus Tuna, but it is also divided into several subspecies, Atlantic bluefin tuna, Pacific bluefin tuna, etc. The most precious of which is Atlantic bluefin tuna.

The bluefin tuna in the Japanese waters is from the Pacific. Qin Shiou has observed it in the Tsukiji Market and cannot see the difference between them and the bluefin tuna in his fishing grounds. Nishimura Len said that there is a difference in taste, but he thinks it is nonsense and there is a big difference.

The technology of Japanese breeding of bluefin tuna is about to date from the 1970s. Research was started from the famous Kinki University. In the 1980s, wild fish was stored as adult fish. However, because of the lack of wild tuna fry, it was difficult to expand the scale.

Breakthroughs were made in the early 21st century, and Kinki University finally realized the whole fish farming, which means that even the fry is bred manually.

Although the total shipment volume is not much larger than that of wild tuna, the breeding technology is already relatively reliable and the shipment volume is also increasing year by year. At this point, breeding tuna has become a real and reliable thing.

Artificially farmed tuna is called kindai-tuna in Japan. It is close to big tuna. This fish looks similar to wild fish, but its meat tastes poor. The activity of breeding tuna is not enough, the meat fat content is too low, and the taste is not good.

However, the unit price of near-big tuna is not much lower than that of ordinary wild-level bluefin tuna. The reason for this is that the breeding cost of near-big tuna is very expensive and more expensive than catching a wild fish.

When Qin Shiou arrived at Li Island by boat, he knew why tuna farming costs so much. This farm is not a small pond, but a circle of artificial super farms built around Li Island!

There are prestressed concrete pipe piles formed by connecting about seven or eight kilometers from the seabed of Le Island. These pipe piles are similar to the piles used by Qin Shiou when building a high pile wharf. However, the length is much longer, and after being connected, it is 200 meters!

There are at least twenty such pipe piles around Li Island. These pipe piles are skeletons and are connected to fishing nets. This fishing net surrounds Li Island for a year, surrounding the entire sea area, forming the so-called tuna farm. In addition, countless thick and thin water pipes extend out from the island into the ocean, and the oxygen generator starts on the island. Oxygen is continuously input into the sea water...

Seeing this scene, Qin Shiou understood why Takata Tezuka wanted to cooperate with him to catch tuna. The Japanese's love for this thing has reached a certain level. The cost of eating this thing is really huge.

Qin Shiou asked Xicunleng the price of these pipe piles, and Xicunleng said: "One piece can last for about 140 million yuan, and it can last for 40 to 50 years."

"This is too expensive, just to study tuna farming?" Qin Shiou asked in surprise. 140 million yen is about 7 million yuan, and 20 yen is about 140 million yuan.

Nishimura Ryo said seriously: "The value of scientific research is unlimited. If the tuna breeding technology is fully mature, do you know how much money we can save in Japan?"

Qin Shiou smiled bitterly and said, "As long as you don't eat this kind of fish, don't you save this money?"

When Nishimura Leno heard this, he became anxious and said, "How can you not eat it? If you can't eat this delicious food, what's the point of living?"

Qin Shiou spit out a mouthful of old blood!

Winnie looked at the fishing nets around her and asked curiously: "Xizumura San, are there no loopholes in these fishing nets? If there are loopholes, wouldn't the tuna escape?"

Nishimura Ryoshi explained: "There are certain loopholes, but after our research, we found that tuna needs to swim all the time to survive. This lifestyle has made them develop the habit of blind swimming. Unless a loophole happens to be drilled out, they will not look for loopholes and leave."

Qin Shiou understood this point. The bluefin tuna swims very fast and can reach a speed of 70 kilometers per hour. If it hits at this speed, it will basically be dead. So they form non-conditioned reflexes. After they find that there is a barrier, they will immediately change directions and swim, and they will not blindly hit them.

Unfortunately, the Japanese met Qin Shiou this time. The bluefin tuna was naturally afraid of obstacles, but Qin Daguan Ren could change the nature of these fish!

The sea god's consciousness quickly turned around on Le Island. Qin Shiou encountered some bluefin tuna, but most of them were underage fish, which were about ten kilograms. The size was 40 or 50 kilograms, and it was rare to see that those over one meter were longer. This kind of little guy was of no value.

This also shows the character of the Japanese. At the last auction at Tsukiji Market, many bluefin tuna caught from major seas only had 20 to 30 kilograms, forty to fifty kilograms.

But look at their own farms, tuna will not be caught before it matures, and typically they do not regard other people's children as underage.

To the south of Lejima is the New Island. The farm on this island has shares in Kiyomura Co., Ltd., and Nishimura Ryo can take Qin Shiou and his group to visit the farm.

When the boat was leaning on the dock, two men in security uniforms came up to search their bodies, not allowed to bring their cameras, not mobile phones, and not video recorders to the island. The reason is naturally to prevent anyone from taking pictures of tuna farming technology.

Qin Shiou didn't want these people to search, so he simply stopped going up and asked Xicunlei to take them around.

The ship was turning, and the consciousness of the sea god was also turning. When he arrived at the forbidden island, he was surprised to find it.

The pipe pile pillars of the Shenbao Island are longer and extend to the depths of the sea of ​​300 meters in the ocean. The tunas here are big and small, but the overall size is still small. However, these fish swim faster and have a sense of energy, which is different from the lazy tunas in other farms.

Qin Shiou tapped Xicunlei and found the answer. As he guessed, the tuna in this farm was all wild seedlings. If wild bluefin tuna could be caught, it would be brought back before it was dead and put into the farm on the forbidden island.

The sea god's consciousness was rotating inside. Qin Shiou looked at it and found that there were about a hundred bluefin tuna inside, which was smaller than other farms, and at least two hundred in other farms.

This is also related to the nature of bluefin tuna, because they often keep high-speed parades. If there are too many and are not from the same population, it is easy to have impact events. The swimming speed of wild fish is faster than that of farmed fish, so the breeding density is smaller.

The waters controlled by the sea god consciousness began to collect in circles from the periphery. When you encounter tuna, you immediately control them and give them a target, swim to the North Atlantic Ocean, and go straight to the Daqin Fishery. (To be continued)
Chapter completed!