Chapter 210 Cold Water
After the establishment of the joint venture subsidiary of Hailufeng Company and Haijing Company, they quickly found relevant companies to erect a cable.
Jiang Miao was at the Lufeng Breeding Base at this time.
This breeding base is the one that Norwegian salmon breeding companies were planning to invest in before. It covers an area of about 5,460 acres, with a breeding area of 4,500 acres and 946 acres of other supporting facilities.
After Hailufeng Company took possession of this project, it successively invested nearly 1.5 billion yuan, and will invest another 2 billion yuan in the future.
At present, there are 2,000 acres of indoor breeding farms and related supporting facilities completed.
Although this base is said to be a land-based breeding farm, it is actually only more than 200 meters away from the coast, right next to the coastline. A large water pumping station has been built on the beach to pump water from the sea to supply the breeding farm.
Jiang Miao had previously asked the aquatic products department to take down a hill next to the breeding base, and then use the natural caves in the mountain to build an underground icehouse.
The hill in front of him covers an area of about 470 acres. When he came here for inspection before, he took a fancy to this hill because it not only has an underground cave that can be transformed, but also the rock structure is relatively stable and is not prone to collapse. Such geological disasters.
"Boss, we have widened and deepened this cave, and also reinforced it. It is currently divided into six caves." Li Xiangzhe, the management director of the breeding base, was introducing the operation of the Blackstone Mountain Freeze Storage to Jiang Miao.
Judging from the structural diagram, the six cave chambers are divided into two rows and are connected to each other.
Refrigeration equipment and a cold water circulation system are arranged inside, four of which are commonly used freezers and two are freezing rooms.
The pipes of the cold water circulation system are buried underground and connected to thousands of acres of indoor breeding farms.
The electricity from photovoltaic panels is used to continuously cool the water in the freezer during the day, and even directly make ice. With the help of the thick rock formations of the mountain, it achieves an insulation effect similar to that of an ice cellar.
This huge frozen storage can simultaneously ensure that nearly 30 million cubic meters of water in the farm are maintained at a temperature range of 10∽16 degrees Celsius.
Of course, not all of these bodies of water are used for salmon farming.
There are only about 10 million cubic meters, or 1,500 acres, of salmon farms, and the other 3,000 acres of farms are used to raise other things.
After looking at the frozen warehouse, Jiang Miao looked at the salmon farms. Currently, among the farms affiliated to Hailufeng Company, a total of three farms are raising salmon.
Among them, the Jilongshan Breeding Farm next to the headquarters has a breeding scale of 500 acres, the Zhelang Peninsula Breeding Farm is 2,000 acres, and the Lufeng Jieshiwan Breeding Farm is 1,500 acres, totaling 4,000 acres.
The breeding water capacity of these farms is 26.64 million cubic meters, which can breed hundreds of millions of salmon.
However, Jiang Miao didn't pay too much attention to salmon farming at this time. He just watched it for half an hour and then skipped it. Instead, he came to the newly added farming categories.
In the 500-acre indoor breeding farm, 5 types of seafood are currently cultured.
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 from the bottom of the pond.
Soon something was scooped up along with the silt.
Jiang Miao squatted down and saw a few snails from the net bag. These snails were the famous loud snails in the Chaoshan area.
At this time, these small rattle snails are still very small, only about the size of a finger. It will take about 18 months to grow to a size of 1∽2 kilograms that can be marketed. This is the most scientific breeding plan that Jiang Miao has adopted. , so that these rattle snails can grow to 1∽2 kilograms in 18 months.
Jiang Miao threw a few snails back into the breeding pond, and while washing his hands by the pond, asked: "How is the mixed breeding going?"
"So far, it's pretty good. Our experimental cultured rattle snails-Splendid lobster project and Bandong wind snail-Pippi shrimp project have no abnormalities. This may be related to the fact that they all inhabit the South China Sea."
This kind of mixed culture is mainly to make full use of the water body. Shellfish mainly inhabit the sediment layer of the seabed, while Pipi shrimp and Splendid lobster inhabit the shallow water on the seabed.
Of course, in order to prevent Pipi shrimps and Splendid lobsters from killing spotted snails and rattle snails, Hailufeng Company laid a layer of stainless steel grid about half a meter above the sediment layer of the breeding pond.
Since it is a grid, there must be mesh restrictions.
Therefore, it is the same for Pipi shrimps, lobsters, rattle snails, and Dongfeng snails. They must be at least as big as a finger before they are mixed.
“Go and visit the King Crab and Arctic Sweet Shrimp farms.”
"Okay."
The group of people came to the rows of breeding farms closest to the underground cold storage.
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 crab.
The employees who work in these farms all wear thick down jackets. Li Xiangzhe also gave Jiang Miao and others several sets of special warm down jackets, all of which are one-pieces.
As soon as we entered the farm, even though it was winter outside, the temperature inside was still very cold.
Taking a breath, Jiang Miao looked at the Arctic sweet shrimp at the bottom of the pond. Since the Arctic sweet shrimp needs to survive in deep water, 12 meters of this 20-meter-deep breeding pond are completely underground, and the remaining 8 meters are through Realized by raising the pond dam. Therefore, if staff want to observe these Arctic sweet shrimps, they also need to use underwater cameras to observe them.
In fact, this depth does not meet the habitat requirements of Arctic sweet shrimp.
Arctic sweet shrimp in its natural environment, its habitat is at a depth of 100∽600 meters.
But Jiang Miao understands that living things are not static. The reason why Arctic sweet shrimps live in seawater at a depth of 100 to 600 meters is because of their long-term habits, which can be changed.
As long as the lighting and water temperature are consistent, the water pressure at a depth of 100 meters is not unchangeable.
In particular, the depth range of the Arctic sweet shrimp in sea water is originally 100∽600 meters, and the difference in water pressure between the upper and lower reaches is nearly 5∽6 times. This in itself shows that the body mechanism of the Arctic sweet shrimp contains the ability to adjust water pressure.
By interfering with the inorganic salt concentration of their body fluids and inducing other nutrients, Jiang Miao ensured that these Arctic sweet shrimp larvae could live in a water layer with a depth of 15∽20 meters.
"How long has this pond been farmed?"
"Boss, this is the first batch of Arctic sweet shrimps that have been released for frying. It has been 12 days now." The leader of the breeding team replied cautiously.
"Not bad." Jiang Miao could tell at a glance that these Arctic sweet shrimps were well taken care of.
This book was recently updated in ##六@@九@@书@@!! Updated!
Compared with the growth cycle that takes at least two to three years before being marketed in the natural environment, in the artificial breeding farms here, these Arctic sweet shrimps only need about half a year to grow to the market standard of 14∽18 grams.
Jiang Miao looked at the picture of another underwater camera.
In the picture, there is a large area of baby king crabs, which live on top of the stainless steel grid plate, that is, in a water layer of more than 10 meters.
They are still very small at this point, only a little larger than a finger.
Under normal natural conditions, it takes 8∽12 years for king crabs to grow to the marketable stage of 3∽4 kg.
But artificial breeding does not require it. In this breeding farm, they have the best water temperature, light, and seawater salinity to live in. They do not need to run around often. In addition, they only need about 18 months to eat the most suitable feed. It can grow to 2 to 2.5 kilograms and 3 to 3.3 kilograms in about 28 months.
During this period, that is, in the 12th month, the first molt will begin; in the 24th month, the second molt will begin, which also means that the king crab has entered the sexual maturity stage. If it is cultured for another 4 months at this time, During this period, by adjusting the feed and water temperature to interrupt the reproduction of these king crabs, the weight of these king crabs will suddenly increase and they will soon reach the market standard.
If the reproduction of king crabs is not interrupted, it only takes 8 more months of breeding step by step, and these king crabs will start to lay eggs.
In fact, breeding these king crabs is just incidental.
These ultra-low temperature breeding tanks 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 shrimps, which are harvested every six months, the growth cycle of king crabs is still relatively slow, and it takes 28 months to reach market standards.
According to the current breeding situation, one acre of ultra-low temperature pond can produce about 3,000 kilograms of Arctic sweet shrimp per acre, and 6,000 kilograms per year.
The current import CIF price of Arctic sweet shrimp is 30-50 yuan per kilogram. Calculated at 30 yuan per kilogram, the annual output value per mu is 180,000 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 the habit of cannibalism. If the breeding density is too high, they can easily kill each other, leading to large-scale production losses.
In order to prevent king crabs from killing each other, they can only use double-layer stainless steel grids to separate the upper and lower layers, barely doubling the breeding density. Moreover, they must be replaced every six months in the breeding pond to adjust their position in the water. the breeding density.
The breeding density of one-year-old king crabs must ensure an active surface of 3 square meters. A maximum of 222 king crabs can be cultured on one layer of an acre of breeding pond, and a maximum of 444 king crabs can be cultured on two layers.
When the crabs are harvested, each of these king crabs weighs just over 3 kilograms, and the yield per mu is about 1,332 kilograms.
Even if the price of king crab does not collapse in the past few years and remains at 400 yuan per kilogram, the output value per mu is about 530,000 yuan, and the average annual output value per mu is 220,000 yuan, which is tens of thousands of yuan higher than the Arctic sweet shrimp.
The problem is that the price of 400 yuan per kilogram of king crab is obviously too high. In addition, the influence of extreme weather in recent years has led to a large-scale reduction in king crab production, which is why it has such a high value.
Of course, for Hailufeng Company, it is waste utilization anyway.
King crabs and Arctic sweet shrimps are cultured 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 breeding farm, Jiang Miao naturally has to select high-value aquatic products for breeding. Ordinary fish and shrimps simply cannot recover the cost.
(End of chapter)