Is salmon farmed in China? Can salmon be farmed?

It is produced in the upper reaches of Heilongjiang, Ussuri and Songhua rivers. There is artificial breeding in Huaihua, Beijing.

Salmon is one of the most commonly used fish ingredients in Western cuisine. Salmon from China is called salmon in Chinese. Every year in September and October, they enter the rivers in groups from the ocean to spawn, so September and October are the best time to catch salmon.

Habits: Salmon is a anadromous migratory fish, the main species of BC are chinook, sockeye, pink, chum and live in rivers and streams for 1 5 years before entering the sea for 2 or 4 years. The spawning period is from August to January.

During their antagonistic spawning migrations, they jump over small waterfalls and small dikes, and travel long distances to reach their spawning grounds without feeding.

Every year, between July and October, thousands of salmon come to the Adams River in the upper Fraser River in Canada to breed. They all come up from the Pacific Ocean. The process of marching is against the current, and there is a ladder of "height" at each stage of travel.

Getting to a "ladder" is like going up a staircase, you need to step up. The fish can only reach the next ladder by jumping constantly. (It's like a carp jumping over the dragon gate.)

However, due to the special environment and the special spawning habits of salmon, it is necessary to reach the upstream of this long-distance high-altitude ladder before it can spawn. So what they have jumped is not just one or two "steps", but a long road back.

On top of these steps, there will be many bears that are about to hibernate and need to be replenished. These bears will catch fish that have jumped out of the water, so many fish will die from the bear's growing belly.

It is only after going through a series of difficulties that the salmon can reach the calm surface of the lake at the far reaches to spawn. After spawning, the salmon dies, ending its life.

China is another world's best! The fish farming artifact made in the Yellow Sea has an annual output of 1,500 tons.

OK. Wild salmon live in a highly competitive environment, and they struggle to survive, and it takes three years for them to mature, so they have developed muscle tissue, low fat content, and soft and firm meat.

Farmed salmon lack of natural competition environment and exercise space, feed is composed of high fat, high protein, generally fat and strong, less than 1 year can quickly grow to more than 20 catties, the fish body is fat and tender rich in fat, the fish meat can be seen very obvious white fat line, the taste is relatively soft. Wild salmon is slightly more nutritious than farmed.

Experimental testing found that the nutrition of artificially farmed salmon is also good, the amino acid composition is comprehensive, the total amount of essential amino acids and the mass fraction of flavor amino acids are quite high, and it is a food with high nutritional value.

OK. The term "salmon" we often refer to specifically Atlantic salmon, also known as Norwegian salmon. The vast majority of Norwegian salmon imported into China is farmed. There is already breeding in the country.

OK. 1. Introduction.

Salmon, also called salmon or salmon, is divided into salmonidae and salmonidae. It is one of the most commonly used fish ingredients in Western food. There are different types of salmon in different countries, with Norwegian salmon predominantly Atlantic salmon, Finnish salmon predominantly farmed large-sized red-fleshed rainbow trout, and American salmon predominantly Alaskan salmon.

Salmon generally refers to the salmon of the salmonidae family Pacific salmon, there are many species, such as salmon and humpback salmon from the northeast of China.

Second, breeding conditions.

Structure of the breeding pond.

The breeding pond adopts a shed cement floor structure, and the roof of the shed can be covered with plastic sheeting. Each cement pool in the shed covers an area of 100 square meters, with a depth of 1 5 2 0 meters. There is a water inlet above the cement pool, a drainage outlet below, and a sewage ditch in the middle of the bottom.

2. Water source: It is best to use underground deep well water, if the iron content in the water is high, it should also be equipped with a set of tower aeration and iron removal equipment. Water quality analysis should be done before the water source is used.

3. Charging and power generation equipment: 7 10 kilowatt blower. Also, have another one to spare.

2 Preparation before stocking.

For new cement ponds, water should be soaked for 2 months before they can be used for farming. The old cement pond should be disinfected with fungicide 10 days before the seedlings are stocked before they can be used. The cement pool is filled with water to a depth of 1 meter.

3 Seed stocking.

40 50 Pacific salmon with a size of about 30 50 grams per cubic metre of water are stocked. Generally, after 150 160 days of breeding, the tail weight can reach 900 1000 grams. Fingerlings can be stocked in April in the spring.

4 Feed feeding.

Feed acclimation with pellets. The crude protein content of the feed is 42 45%, and the feed particle size is 3 0 6 0mm. When the water temperature is below 8, feed 2 times a day, 8 a.m

Feed once at 00 9:00 and once at 4:00 pm and 5:00 pm.

When the water temperature is 8 15, feed 3 times a day, and add one more at noon. Each feeding is 80% full, that is, most of the fish swim away.

5. Water temperature control.

Because Pacific salmon is a cold-water fish, the water temperature requirements are relatively strict, and its optimal growth water temperature is 13 15, while the well water temperature is about 8. There are two ways to regulate the water temperature during the rearing period. First, in early spring and late autumn, when the temperature is low, cover the trellis with plastic sheeting to raise the temperature of the pool water.

Second, in the summer when the temperature is high, the plastic sheeting is removed and the temperature of the pool water is lowered by increasing the exchange of well water. Through the above two methods, the minimum water temperature is not less than 5, the maximum is not more than 15, and the water temperature in spring and summer is kept at 13 15.

China is another world's best! The fish farming artifact made in the Yellow Sea has an annual output of 1,500 tons.

Nowadays, salmon is basically kept in captivity.

There must be conditions, suitable temperature, water quality.

The largest salmon farm in China is located in the Longyangxia Reservoir in Gonghe County, Qinghai Province.

Qinghai is known as the "Chinese Water Tower", with abundant and sufficient cold water resources, the reservoir of many large and medium-sized hydropower stations between the main stream of the Yellow River in the province from Longyang Gorge to Jishi Gorge 300 kilometers because of the clean water body, excellent water quality, the water temperature is between 2 degrees Celsius and 22 degrees Celsius, and it is not frozen all year round, and is recognized as one of the best areas for cage salmon breeding at home and abroad.

With the unique resource advantages, since 2007, Qinghai Province has learned from and introduced Norway's complete sets of cold-water fish cage aquaculture equipment technology and ecological and environmentally friendly aquaculture equipment, introduced fish species from the United States, Norway and Denmark, with salmon trout as the main species, and deep-water large cage aquaculture as the main technology, which has been popularized and covered to the large water surface along the Yellow Reservoir, and launched the land-based fishery demonstration pilot work.

Salmon farming management techniques

1. Site selection

Salmon farming environment is very demanding, and it is necessary to choose a freshwater area for farming, and there should not be any pollution sources around, so as to reduce the occurrence of diseases.

2. Stocking of fish fry

Fry put the specifications are the same, in the early stage of breeding salmon, we must be the size of the salmon, and the weight is controlled in the same state, if the size of the potato fish is too small, it will be bullied by the big salmon, if the size of the salmon is too big, it will not be able to better control its life in the breeding process.

3. The size of the site

The breeding area is too small to be suitable for the normal growth of salmon, and the large Chongqizheng breeding area can increase the growth rate of salmon and increase its production.

4. Selection of food materials

Salmon like to eat some sardines, soft clams and other foods, but artificially bred salmon, there is no specific food input, you can go to the market to buy some professional salmon food, mixed feeding, and the amount of feeding should also be based on the growth of salmon, as well as the usual eating conditions, reasonable feeding.

5. Breeding management

During the breeding process, the transparency of the water quality should be checked regularly, and if the water quality is polluted, the water quality should be replaced in time and the oxygen content should be increased to avoid disease or death due to lack of oxygen in the salmon.

In addition, in the breeding process, if the sun is too sufficient, it is necessary to take timely shading preparations. The shading can not only control the temperature in the pool, but also effectively reduce the temperature of the water quality, so as to better protect the healthy growth of salmon.

Can you keep salmon in freshwater.

There are many kinds of salmon, most of them can not be raised in freshwater, a small number of species can, there seems to be a large-scale freshwater aquaculture success in China, more specifically, the claw machine is weak.

Is freshwater farmed salmon seafood.

No! Seafood, seafood, why not be produced in the sea! In addition, those freshwater farmed fish are not salmon, but rainbow squatting fish!

Does freshwater-raised salmon count as seafood?

Of course, river fresh is not seafood, and it can be a taste after it comes out of seawater and freshwater??? Also, can salmon be kept in freshwater.

Is salmon a deep-sea fish or a freshwater fish?

Salmon, also known as salmon, is a type of deep-sea fish and is one of the commonly used foods. Salmon live in the Atlantic and Pacific oceans, and can be found in the Great Lakes of the Americas and other lakes.

Salmon are born in freshwater, then move to seawater to grow, and then return to freshwater to breed. Salmon swim back to their birthplace to breed using the guidance of the sun and the Earth's magnetic field, and studies have found that 90% of salmon that swim into the stream die in the same stream. Pacific salmon species generally die within a few weeks of breeding.

It is born in freshwater, then moves to the deep sea to grow, and then returns to freshwater to breed. So there's that argument about deep-sea or freshwater fish.

The Chinese have begun to breed salmon, do they still dare to eat this fish?!

Naive, do you think it's okay to breed abroad? Let me tell you, the normal meat of farmed salmon is white, and if you want the fish to turn red, you must feed artificial astaxanthin, whether artificial astaxanthin is safe is not known, and gourmets such as Cai Lan have publicly stated that they will not use farmed ones, so it is recommended that you do not eat them. For more information, please refer to my other question.

Is salmon a freshwater fish? How to raise it, what is the market prospect. What are the breeding technologies, how large is the scale of investment, how much capital is needed, and what conditions should be met.

Salmon looks like migratory fish? What you want to know is pure freshwater rainbow trout or golden trout.

How to survive the freshwater salmon you bought home.

The temperature is controlled below 20, and the dissolved oxygen is above 6ppm, which are the most important, and other pH, ammonia nitrogen, nitrite and other indicators are achieved by changing the water.

Is salmon a freshwater fish or a saltwater fish.

Salmon are salmon that breed in fresh water, grow in seawater, and eventually return to freshwater to spawn and die in freshwater. I don't know if it's fresh water or salt water.

Can salmon be domesticated?

It's best not to keep it domestic, salmon is a precious fish, and we want to protect nature. In addition, salmon is a good edible fish with high protein and high nutrition, if you want to eat it, you can buy it yourself, a big tonic!! It's better to eat less.

The main production areas are as follows:

It is mainly in the upper reaches of the Heilongjiang River, the Ussuri River and the Songhua River.

There is artificial breeding in Huaihua, Beijing.

Salmon can be farmed in Qingdao Deep Blue No. 1. "Deep Blue No. 1" was completed and delivered in Qingdao on May 4, 2018. It is China's first "deep-sea fishing ground" built by China Shipbuilding Industry Wuchuan Group for Wanzefeng Fishery in Rizhao City, Shandong Province.

According to reports, the cylindrical "Deep Blue No. 1", 35 meters high, 180 meters in circumference, can accommodate 50,000 cubic meters of aquaculture water, can raise 300,000 salmon at a time, and achieve an output of 1,500 tons.

The diving depth of Deep Blue 1 can be adjusted from 4 meters to 50 meters, and the fish can be controlled according to the water temperature, so that the fish can live in a suitable temperature layer. Wang Yu, president of Hubei Institute of Marine Engineering Equipment, said.

1. Choose a venue.

To raise salmon, the most important thing is to choose the site where to breed, you need to choose a freshwater area for farming, and there should be no pollution sources around.

2. Put fish fry.

In the early days of salmon farming, it is necessary to control the size and weight of salmon, and if the size is too small, it will be threatened by salmon and so on. In order to effectively ensure the smooth growth of salmon, it is recommended to use salmon fry of equal weight.

3. The size of the site space.

Salmon farming needs to choose a larger breeding area as much as possible, if the area is too small, it will not be conducive to the normal growth of salmon, but also limit its growth. A large area can increase the growth rate of fry and also increase yield.

4. Choose food.

Salmon in captivity, there is no specific food to put in, you can go to the market to buy some professional salmon feed, mixed feeding.