Chapter 210 Cold Water

Chapter 210 Cold Water

Chapter 210 Cold Water
After the subsidiary jointly established by Hailufeng Company and Haijing Company was established, it quickly found relevant companies to lay a cable.

Jiang Miao is at the Lufeng breeding base at this time.

This breeding base is the one that the Norwegian salmon breeding company had previously planned to invest in. It covers an area of ​​about 5460 acres, with a breeding area of ​​4500 acres and other supporting facilities of 946 acres.

After Hailufeng Company took over the project, it invested nearly 15 billion yuan in total, and will invest another 20 billion yuan in the future.

At present, 2000 acres of indoor breeding farms and related supporting facilities have been completed.

Although this base is a land-based farm, it is actually only 200 meters away from the coast, right next to the coastline. A large pumping station has also been built on the beach, which is specifically used to pump water from the sea to supply the farm.

Jiang Miao had previously asked the aquatic products division to acquire a small hill next to the breeding base, and then used the natural caves on the mountain to build an underground ice storage.

The hill in front of him has an area of ​​about 470 acres. When he came here to investigate before, he fell in love with this hill at first sight, because this hill not only has an underground cave that can be transformed, but also has a relatively stable rock structure and is not prone to geological disasters such as landslides.

"Boss, we have widened and deepened this cave and reinforced it. It is currently divided into six chambers." Li Xiangzhe, the management director of the breeding base, was introducing the operation of the Black Stone Mountain freezer to Jiang Miao.

Judging from the structural diagram, the six caves are divided into two rows and are interconnected.

It is equipped with refrigeration equipment and cold water circulation system, four of which are commonly used freezing rooms and two are ice-freezing rooms.

The pipes of the cold water circulation system are buried underground and connected to thousands of acres of indoor farms.

Electricity from photovoltaic panels is used to continuously cool the water in the freezer during the day, or even to make ice directly. With the help of the thick rock layers of the mountain, an insulation effect similar to that of an ice cellar is achieved.

This huge freezer can simultaneously ensure that nearly 3000 million cubic meters of water in the farm is maintained in the range of 10 to 16 degrees Celsius.

Of course, not all of these waters are used to farm salmon.

Only about 1000 million cubic meters, or 1500 acres, are used for salmon farming, and the other 3000 acres are used for farming other things.

After visiting the freezer, Jiang Miao went to see the salmon farms. Currently, there are three farms under the Hailufeng Company that are raising salmon.

Among them, the Jilongshan Breeding Farm next to the headquarters has a breeding scale of 500 acres, the Zhalang Peninsula Breeding Farm is 2000 acres, and the Lufeng Jieshi Bay Breeding Farm is 1500 acres, totaling 4000 acres.

The aquaculture water capacity of these farms is 2664 million cubic meters, which can breed hundreds of millions of salmon.

However, Jiang Miao was not too concerned about salmon farming at this time. He only looked at it for half an hour and then skipped it and came to the newly added farming category.

Five types of seafood are currently being farmed in the 500-acre indoor farm.

In the breeding pond with a depth of 10 meters, a layer of artificial silt with a thickness of more than one meter was laid on the bottom. Li Xiangzhe asked the workers to scoop up the silt at the bottom of the pond.

Soon something was fished out along with the mud.

Jiang Miao squatted down and saw several snails in the net bag. These snails were the famous giant snails in Chaoshan area.

At this time, these small conches are still very small, probably only the size of a finger. It will take about 1 months for them to grow to 2∽18 kilograms each and be ready for the market. This is why Jiang Miao has to take action and use the most scientific breeding plan to allow these conches to grow to 18∽1 kilograms within 2 months.

Jiang Miao threw a few conches back into the breeding pond and asked, "How is the mixed breeding going?" while washing his hands beside the pond.

"So far, things are going well. Our experimental breeding of conch-lobster and baby conch-shrimp projects have not shown any abnormalities. This may be related to the fact that they both inhabit the South China Sea."

This mixed farming is mainly to make full use of the water body. Shellfish mainly live in the mud layer on the seabed, while mantis shrimp and lobster live in the shallow water on the seabed.

Of course, in order to prevent mantis shrimp and lobster from killing spotted snails and loudmouth conches, Hailufeng Company laid a layer of stainless steel mesh about half a meter above the mud layer in the breeding pond.

Since it is a grid, there must be mesh restrictions.

Therefore, the breeding of mantis shrimp, lobster, conch and baby shell is the same. They will not be mixed until they are at least finger-sized.

"Go check out the king crab and Arctic sweet shrimp farms."

"Ok."

The group came to the rows of farms closest to the underground freezer.

The water temperature in these farms must be controlled at 2-5 degrees Celsius, which is also the most suitable temperature for the growth of Arctic sweet shrimp and king crabs.

The employees working in these farms all wore thick down jackets. Li Xiangzhe also gave Jiang Miao and others several sets of specially made warm down jackets, which were all one-piece.

As soon as you enter the farm, even though it is winter outside, the temperature inside is still very cold.

Exhaling a breath of white air, Jiang Miao looked at the Arctic sweet shrimp at the bottom of the pool. As Arctic sweet shrimp need to survive in deep waters, 20 meters of this 12-meter-deep breeding pool is completely underground, and the remaining 8 meters is achieved by raising the pool dam. Therefore, the staff need to use underwater cameras to observe these Arctic sweet shrimp.

In fact, this depth does not meet the habitat requirements of Arctic sweet shrimp.

In its natural environment, the habitat of Arctic sweet shrimp is at a depth of 100 to 600 meters.

But Jiang Miao understood that living things are not static. The reason why Arctic sweet shrimp live in sea water at a depth of 100 to 600 meters is because of the habits they have formed over a long period of time, and these habits can be changed.

As long as the light and water temperature are suitable, the water pressure at a depth of 100 meters is not unchangeable.

In particular, the Arctic sweet shrimp's sea depth range is 100-600 meters, and the water pressure difference between upper and lower levels is nearly 5-6 times. This in itself shows that the Arctic sweet shrimp's body mechanism contains the ability to regulate water pressure.

Jiang Miao ensured that these Arctic sweet shrimp fry could live in the water layer with a depth of 15 to 20 meters by interfering with the inorganic salt concentration in their body fluids and inducing other nutrients.

"How long has this pond been cultivated?"

"Boss, these are the first batch of Arctic sweet shrimps. It has been 12 days now." The breeding team leader replied stiffly.

"Not bad." Jiang Miao could tell at a glance that these Arctic sweet shrimps were well taken care of.

Compared with the growth cycle in the natural environment, which requires at least two to three years before they can be put on the market, in the artificial breeding farms here, these Arctic sweet shrimp only need about half a year to grow to the market standard of 14-18 grams.

Jiang Miao looked at the image from another underwater camera.

In the picture, there is a large group of young king crabs, which live above the stainless steel grid plate, that is, in the water layer above 10 meters.

At this point they are still very small, only slightly larger than a finger.

Under normal natural conditions, it takes 8 to 12 years for king crabs to grow to the marketable stage of 3 to 4 kilograms.

But artificial breeding does not require this. In this farm, they have the best water temperature, light, and seawater salinity, and do not need to run around frequently. In addition, they eat the most suitable feed. It only takes about 18 months for them to grow to 2-2.5 kg, and about 28 months for them to grow to 3-3.3 kg.

During this period, that is, in the 12th month, the first molting will begin; in the 24th month, the second molting will begin, which also means that the king crabs have entered the sexual maturity stage. At this time, if they are cultivated for another 4 months, the reproduction of these king crabs will be interrupted by adjusting the feed and water temperature, which will cause the weight of these king crabs to soar suddenly and soon reach the listing standards.

If the reproduction of king crabs is not interrupted, they only need to be cultivated step by step for another 8 months and then they will start laying eggs.

In fact, breeding these king crabs is just a side job.

These ultra-low temperature breeding ponds are used to breed Arctic sweet shrimp, but Arctic sweet shrimp cannot adapt to water depths above 15 meters. In order to avoid wasting this part of the space, they are used to breed king crabs.

After all, compared to Arctic sweet shrimp that are harvested every six months, the growth cycle of king crabs is relatively slow, and it takes 28 months to reach the market standards.

According to the current breeding situation, one acre of ultra-low temperature water pond can produce about 3000 kilograms of Arctic sweet shrimp per acre, and 6000 kilograms per year.

The current import landed price of Arctic sweet shrimp is 30-50 yuan per kilogram. Calculated at 30 yuan per kilogram, the annual output value per mu is 18 yuan.

Although king crab is expensive, its growth cycle is too long, the feed cost is not low, and the breeding density is not as high as that of Arctic sweet shrimp.

After all, king crabs have a habit of killing each other. If the breeding density is too high, they will easily kill each other, resulting in large-scale production reduction.

In order to prevent the king crabs from killing each other, they had to use a double-layer stainless steel grid to separate the upper and lower layers, which barely doubled the breeding density. Moreover, they had to replace the breeding pond every six months to adjust their breeding density in the water.

The breeding density of one-year-old king crabs must ensure an activity surface of 3 square meters. A maximum of 222 king crabs can be raised on one layer of a one-acre breeding pond, and a maximum of 444 on two layers.

When harvesting crabs, each king crab weighs just over 3 kilograms, with a yield of about 1332 kilograms per mu.

Even if the price of king crabs did not collapse in recent years and maintained at 400 yuan per kilogram, the output value per mu would be about 53 yuan, with an average annual output value of 22 yuan per mu, which is tens of thousands of yuan higher than Arctic sweet shrimp.

The problem is that the price of king crab is 400 yuan per kilogram, which is obviously inflated. In addition, the impact of extreme weather in recent years has led to a large-scale reduction in king crab production, which is why the value is so high.

Of course, for Hailufeng Company, it is just waste utilization anyway.

The purpose of breeding king crabs and Arctic sweet shrimp is to increase the overall benefits of the breeding ponds.

Even if the price of king crab drops to 100 yuan per kilogram, it will still be profitable for Hailufeng Company.

To build such a large-scale, high-standard, cold-water farm, Jiang Miao naturally had to select high-value aquatic products for breeding, as ordinary fish and shrimp could not recover the cost at all.

(End of this chapter)