When he heard that the sea urchin of the light thorn ball had arrived, Butler rushed back in a small boat. After jumping onto the dock, he began to shout, "Qin, Qin, where is my sea urchin?"

Qin Shiou took a smoke from the corner of his mouth, took him on the transport ship and asked him to check the round spikes in the incubator.

Butler pinched one with a clip and took it to his eyes. His eyes were simple, as if a sculptor were appreciating a good marble.

After watching it for a while, uncle bearded exclaimed, "Oh, God, is this the light thorn ball sea urchin? Chinese and Japanese like to eat this stuff? It looks so ugly and lovely. "

Qin Shiou twitched violently at the corners of his mouth. Bill pulled him and asked in a low voice, "is this the guy you said who identified sea urchins very well? Really, er, how can I say, I can't tell from the appearance. "

Facing Qin Shiou's gloomy eyes, Butler laughed. He patted senior official Qin on the shoulder and said, "OK, OK, relax, man, I'm just kidding. You know, I followed my uncle to catch sea urchins in the North China Sea when I was 14."

Butler patiently observed the incubator, then nodded and said, "no problem, it's really a light thorn ball sea urchin. It's very active and well done, man. We rarely see such good goods now."

After hearing this, Bill looked proud and said, "not bad. I got it through a little secret."

Butler shook hands with bill and said to Qin Shiou, "you have made an energetic friend. Now the sea urchin market is too chaotic. A few days ago, in Japan, I heard that Singapore farms now like to use southern purple sea urchin as Echinococcus light sea urchin, and some Japanese Seafood merchants have suffered a loss."

Sea urchin is one of the traditional delicacies of East Asian countries. It is the eight treasures of the sea. The edible part of this thing is sea urchin paste, which is nutritious, delicious and has a good role in nourishing and strengthening the body.

The salted sea urchin, alcohol sea urchin, ice fresh sea urchin, steamed sea urchin and sea urchin sauce processed from sea urchin paste are very popular with the high-income class.

With the increasing influence of East Asian countries in the world and the arrival of East Asian aborigines such as Chinese, Japanese and Korean all over the world, sea urchin paste is slowly becoming popular in the international market.

At present, the sea urchin paste of light thorn ball produced in Northeast China is the top sea urchin product in the world. It is also very popular in Europe and America, and the supply is in short supply. There was sea urchin paste of light thorn ball at the wedding banquet of Prince William's wedding, which ended last year.

Butler said that the appearance of Southern purple sea urchin is similar to that of light thorn ball sea urchin. The appearance is purple and black, so some businessmen often use them to pretend to be light thorn ball sea urchin.

In fact, the southern purple sea urchin is also a treasure, but it is not as valuable as the light Echinococcus urchin. The former is cultivated in tropical waters, and the latter is an aboriginal in cold water. Generally, the value cultivated in cold water is higher than that in tropical waters.

These sea urchins sent by bill are also sea urchin seedlings, which are called juvenile sea urchins. They have particularly high requirements for water quality at this stage. Of course, the water quality of Daqin fishing ground is almost the first in North America, which must meet the requirements.

Sea urchin farming is more troublesome than fish, shrimp and crab farming. You need to put them on the seedling collecting board first rather than throw them directly into the sea. If it is too easy to use the way of natural stocking, it is estimated that how many sea urchins will float on the sea in a few days. Of course, they will die.

Bill is so happy to cooperate with Qin Shiou because he is very capable and reliable. He has prepared all the tools and technologies for sea urchin breeding this time. Qin Shiou can apply them directly.

The tools needed in breeding are seedling collecting plate and frame. The seedling collecting plate is used to collect the attached and abnormal juvenile sea urchin, and can also be used as the attachment matrix for the cultivation of juvenile sea urchin and provide diatom bait for the attached and abnormal seedlings. The frame is mainly used to assemble the seedling collecting plate to make it more convenient for operation and management.

Among them, the seedling collecting board is a non-toxic transparent PVC corrugated board, with a length of half meter, a width of 40 cm and a thickness of half cm. There are undulating ripples on the board, and the wave height is about 1.5 cm.

There are two kinds of frames for assembling seedling collecting plates: basket type and folding type. Each frame can assemble 20 seedling collecting plates.

Bill brought a folding frame. He asked the workers to open a demonstration and said, "you see, in this frame, the seedling picking board is not easy to come out, whether it is placed horizontally or vertically. Moreover, the frame has a large area, the spacing of seedling collecting plates is large, and the plates are not easy to overlap, which is more suitable for sea urchin seedling raising. "

If everything is OK, it will be put into breeding.

The common fishing ground is to dig a good breeding pond. Daqin fishing ground has a ready-made one, that is, the engineering breeding pond, which is more advanced and larger.

There were prawns in the aquaculture pool before. Qin Shiou asked the fishermen to open the sluice and put the prawns into the fishing ground. Anyway, he has input enough Poseidon energy to the prawns, and all the female prawns that should lay eggs have laid eggs. Now there is no problem entering the ocean.

After cleaning up the breeding pond, Bill instructed the workers and fishermen to put frames into it one by one, then set up the seedling picking board on it, and finally put the juvenile sea urchin on it.

About 40 juvenile sea urchins can be raised on one seedling collecting board. They are small now and have to separate seedlings when they grow up, so they can be raised more.

When the sea urchins were put into the breeding pond, Bill told Qin Shiou: "young sea urchins also have high requirements for temperature, but it doesn't matter in summer. Just pay attention to the water quality."

Qin Shiou looked through the breeding manual and said, "change the water twice a day to ensure that the daily water change is more than one full amount, right? No problem, no problem with the oxygen content. The oxygen generators here are the most advanced. "

Bill said: "not only do we need to change the water, young sea urchins have strong feeding ability and excretion ability, so we should pour the pond every 10 days or so to clean up the residual bait, feces and dead individuals."

Juvenile sea urchins are attached to the seedling collecting plate. They feed on benthic diatoms on the seedling collecting plate. These things are very edible because their growth involves a metamorphosis process, so they need rich nutrition.

Under the normal process, before attaching the juvenile sea urchin to the seedling collecting board, diatom seeds should be placed first, and then nutrients should be added to the culture process to raise the juvenile sea urchin by raising diatoms.

Daqin fishing ground doesn't need this. Diatom cultivation is a time-consuming job. Qin Shiou directly collects algae and puts it on the seedling board. Their fishing ground is rich in high-quality algae and can be self-sufficient.

Bill was more cautious and said, "I suggest it's more appropriate to cultivate algae on the seedling board. You see, there are two layers of seedling board, under which algae can be cultivated."

Qin Shiou waved his hand and said, "I know this. Don't worry. It's no problem."

He asked the left behind bull to drag a batch of diatoms with a benthic net, smash them and put them into the breeding pond: "look, they don't have to wait. They can eat directly. As for the rest? That won't leave pollution. I can change the water every day. "