Growing sturgeon at home. Video: DIY ultraviolet lamp for a pond. Fish care

Since ancient times, sterlet, one of the representatives of sturgeon fish, was considered an expensive and desirable product for everyone. With the development of various technologies for the production of fish in artificial reservoirs, obtaining such a delicacy has become possible for almost anyone who would like to. Growing sterlet at home is quite possible. You don't need much for this. In principle, several fish can be raised even in a regular aquarium.

Fish: Sterlet

Choosing a suitable room

When breeding sterlet at home, you first need to decide on the territorial possibilities, and then select everything necessary for the successful cultivation of this fish. In many ways, the question of where and how depends on the planned volume of obtaining this valuable product.

Sterlet in containers

The minimum area is a space of 30 square meters. Some enthusiasts have proven by their own example that sturgeon can be grown even in an ordinary city apartment. But not everyone is ready to allocate such space in their own home, so for small volumes of production, a country house or a summer house with garden plots is suitable.

One of the main conditions is to place a pool with fish in a closed heated room, with the ability to maintain a constant temperature within 20 degrees throughout the year.

Video: sturgeon breeding.

Necessary equipment

The most suitable containers for growing sterlet at home are round pools with dimensions from 1.5 to 2.5 meters in diameter and a depth of 1 meter. You can build them yourself or buy them in a specialized store.

When building swimming pools, materials such as metal, wood, and plastic are used, but the simplest and most common is a container made of concrete.

To filter and purify the water in the pool you will need a filter, pump and compressor. This equipment should be selected taking into account the total volume of water processed, with the expectation of long-term operation. Therefore, you should make some reserve for the power of devices.

If there are a sufficiently large number of pools, and at least three of them will be needed, it makes sense to equip them with automatic feeders. Although this will lead to additional material costs, the compensation will be the saved time spent on hand feeding the fish.

Technology of fish breeding in closed water supply installations.

Purchasing fry

This is where it all begins. Even those specialists who are quite successful in breeding sterlet at home and even on large farms prefer to buy fry from those who specialize specifically in young animals. Getting caviar and then fry yourself is not an economically viable option if the basis is the breeding of the fish itself.

Sterlet fry in hand

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For further breeding of sterlet at home, it is recommended to buy fry whose weight is at least 5 grams. The quantity depends on the volume of the pool in which they will be placed for growth. And, based on the fact that the marketable weight of sterlet starts from 500 grams, you can calculate how many fry will be needed to produce about one ton of fish per year for sale.

Feeding the sterlet

Sterlet

When breeding sterlet at home, the quality of fish food is of particular importance. Sterlet is fed two types of food - live and artificial, the percentage is 20% to 80%, respectively. In accordance with the changes in growing young animals, the sizes of feed should be changed. And due to the fact that the same generation gains weight and grows at different rates, it is necessary to sort every ten days, dividing young fish into three categories - small, medium and large.

To do this, it is necessary to divide the pool (if there is only one) into appropriate sections, and if there are the recommended three pools, carry out regular replanting so that individuals with the same parameters are in the same tank.

In search of food, sturgeon fish actively use their sense of smell, so the food that gets into their pool must have an attractive smell for them and be heavier than water in order to sink to the bottom. It is very important to promptly clean the pools from stale food, which can accumulate in the form of excess during feeding.

Feeding sterlet and sturgeon.

Simple technology

All work on caring for growing sterlet comes down to regular feeding of the fish and maintaining the water in the pools in an acceptable condition (timely cleaning and oxygenation).

In clean filtered water, sterlet grows quickly and when the weight of one fish reaches more than 500 grams, it can already be sold. Catering establishments (restaurants, cafes) prefer to purchase fish with this weight for their kitchens.

When breeding sterlet to produce such a delicacy as black caviar, the technological process increases significantly, and all investments will not pay off so quickly. But one group of sturgeon fish can be singled out for this production, and in parallel with the cultivation of the fish themselves for sale, the production of caviar can be gradually mastered. To do this, it will be necessary to significantly expand the volume of sterlet keeping. Increase the number of pools or switch to renting ponds, the conditions in which will be suitable for growing sterlet. In addition, you will have to study in order to fully understand and be able to use the biotechnology of incubating eggs and obtaining fry.

Caviar from sterlet can be obtained for 17-18 years, this is the average lifespan of sturgeon. But sturgeon and caviar are produced in sufficient volumes and of good quality once every 2-3 years, so it will not be possible to put the process on stream.

Economic calculations

Before getting serious about breeding sterlet at home, you should carefully calculate everything. Otherwise, it may turn out that delicious fish will often be on your table, but its cost will be much higher than the price bought in the supermarket.

Absolutely all cost parameters should be included in the calculations, starting from equipment that can last for many years, and ending with the cost of electricity and feed; their supply must be constantly available.

If the technology is fully followed, within six months you can get the first specimens for sale after the fry have been released into the pool. Over the next three months, from the same batch of young animals, individuals who are late in their development will grow up. Thus, throughout the fall, it will be possible to obtain fresh sterlet of excellent commercial quality.

Breeding in ponds

The main difference from breeding sterlet in pools is seasonality. But due to the fact that even a small pond is definitely much larger in size than any pool, the number of fish grown in it will be significantly greater.

Sterlet loves clean water, so not every pond is suitable for breeding it. Before releasing the fry, you should make sure that the conditions in the pond are suitable for them.

We are talking about small ponds that can be maintained in proper condition by several workers. Typically, such ponds are bowl-shaped with a small amount of vegetation along the banks and a sufficient presence of aquatic plants in the water. The water itself should not stagnate, so access to fresh replenishment is very important. This could be a spring or a branch from a nearby river.

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Video: Breeding sterlet

Until recently, the idea of ​​breeding sturgeon at home would have seemed like real madness. This fish is rightfully considered “royal” due to its valuable taste and high cost. It would be strange if such characteristics and extremely high market prices did not stimulate the construction of a business based on the cultivation of sturgeon.

Breeding sturgeon at home is characterized by high rate of business development and good income. There is always a demand for products. There is nothing to say about the usefulness, unusually tasty meat and value of caviar of this wonderful product.

The process of growing sturgeon is characterized by an average level of complexity that does not require large investments.

In addition, the sturgeon family is characterized by high fertility: each individual is capable of producing about a million eggs! All these factors constitute the key to successful promotion of the sturgeon breeding business.

TO the sturgeon family includes: Siberian and Russian sturgeon, beluga, sterlet, stellate sturgeon and some other types of fish.

To seriously approach organizing a business for growing rare fish, you need to have a good understanding of the entire cycle of their cultivation.

Stages of growing sturgeon in closed water supply devices:

1. Delivery of fertilized eggs to the fry breeding base;
   Caviar is delivered in special insulated bags. Before placing it in incubation containers, equalize the temperature in the bags in which the eggs arrived and in the system for incubating the eggs.
2. Storing caviar for 6–8 days in special devices“Sturgeon” type, ensuring uniform washing of eggs;
3. The water undergoes special filtration to remove chlorine and other impurities;
4. Hatching of prelarvae(exit of larvae from shells);
   The larvae are caught and placed in special rectangular containers. The larvae feed from their yolk sac.
5. Swarming stage;
   The onset of this period is a signal that it is time for the larvae to be transferred to external feeding with live food (Artemia cyst).
6. Transferring grown sturgeon to larger tanks, transition to feeding with artificial granulated feed.

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Features of sturgeon breeding technology at home

Sturgeons must be kept in clean, fresh water. High oxygen saturation of water is required, its content must exceed 70%. Otherwise, you need to take care of installing and connecting aerators for ponds and reservoirs.

In winter, you need to carefully ensure that the water does not contain hydrogen sulfide; if gas is detected, it is necessary to enrich the water using an injection-type aerator.

The bottom should be sandy, not muddy. These are factors for the rapid growth and development of sturgeon.

Pools, trays and apparatus for incubating eggs must be washed regularly at least 2 times a week. The water first undergoes special treatment.

Fish that reaches a weight of 500–600 grams already has a commercial appearance and can be sold to restaurants, cafes and retail outlets.

If sturgeon are farmed to obtain black caviar, then you should know that this process is much longer.

But the product turns out to be several times more expensive.

Sturgeon spawn every 2–3 years for 17–18 years, and with each new litter the caviar has higher quality characteristics.

The costs will certainly pay for themselves, but the time factor plays an important role.

Sturgeon food

Fish of this species can be fed with two types of food:

• Live food (bloodworms, insect larvae, fish waste, worms and shellfish).
• Pelleted feed.

All these types are quite available for purchase.

The leader in the feed production market is Aller AQUA. It produces the following types of feed material:

• Starter feeds are feeds for the primary nutrition of sturgeon larvae. Contains Artemia cysts, immunostimulants, available in granules and grits (Aller Futura, Aller Futura MP, Aller Performa);
• Feed for young animals is food for juvenile salmon and sturgeon fish species with immunostimulants, produced in granules of 1.3–2.0 mm (Aller Thalassa, Aller Futura MP, Aller Performa);
• Production feed – food for adults (Aller Bronze, Aller Trident, Aller Metabolica);
• Breeder feed is feed for adults raised for egg production (Aller Sturgeon REP).

Technical conditions for breeding sturgeon

The process of breeding sturgeon at home is quite labor-intensive and technically complex. It is carried out in closed water supply devices (RAS). This is a system of tanks for breeding fish.

The importance of issues of purity and composition of water has already been mentioned above, so the cycle begins with two purifiers: mechanical and biological. After purification, the water is collected in storage tanks.

The next stage in the passage of water is its enrichment with oxygen. Pushed by pumps, the water moves to tanks where aeration occurs.

As it moves further, the water passes through a filter that purifies it with ultraviolet light. Now, having a sufficient degree of purification, the water enters the tanks for keeping sturgeon, and the “dirty” water undergoes mechanical treatment and is discharged into the ground.

Such conditions can ensure the vital activity of sturgeon all year round and contribute to their growth and development up to a maximum weight of 70–80 kg.

The system is safe for the environment and does not call into question the ecological cleanliness of the region.

Business organization

Why is it necessary to grow sturgeon?

Growing sturgeon in a pool allows you to simultaneously solve several problems:

• Control and restoration of endangered fish species;
• Providing citizens with valuable and healthy food products;
• Obtaining fry for breeding sturgeon species in natural ponds and reservoirs;
• Receiving personal profit.

Let's take a closer look at the last factor on the list. If we compare prices for fish products, we will see the following: 1 kg of carp costs $4, catfish – $4.5, trout – $11, but sturgeon – $18 per kg. The difference is great and serves as a motivating factor in making a decision in favor of this business.

What should the initial capital be?

The first investment in a sturgeon breeding business at home will be approximately $2,500 for the purchase of equipment and $1,000 for the purchase of fry or fertilized eggs. Set aside another $500 to purchase food.

What equipment can't you live without?

You can purchase the entire prefabricated RAS system at once, or you can take everything separately and install everything yourself. You need to purchase: filters for water purification (mechanical, biological, ultraviolet purification), pumps and compressors, pools for keeping fish. You definitely need a generator to protect against power outages.

What can you save on?

Savings are possible on things you can make with your own hands. For example, polypropylene containers for raising fry or round pools are a feasible task for a motivated master.

The thermostat can be made from a heating cable for floor insulation. At first you will also buy food, then you can switch to food of your own production.

What kind of premises do you need?

You can start breeding sturgeon at home from small areas. A room of 30–40 m2 is enough to start a business, but then you will still need to expand. The optimal room for growing sturgeon “under a roof” is 320 m2. Water supply and sewerage are required.

What is the expected profit?

Knowing certain constants, it is easy to calculate the possible profit.

The optimal weight of sturgeon suitable for sale is 500–600 g. If you achieve greater weight, increasing material costs for cultivation, it is more difficult to sell the product to retail chains. Since these are mainly cafes and restaurants, the optimal portioned sturgeon is half a kilo.

The cost of a fry is $2–3, the lower wholesale selling price is $10, the cost of feed, electricity and water is $2–3. Your income will be $4–5 per kilogram of product.

It’s interesting to do this, it’s profitable to do it.

Recently, the most popular areas of business are breeding fish and animals in rural areas or at home.

There are entrepreneurs who develop a business for breeding quails, piglets and other animals. But their profitability is not as high as that of such an activity as sturgeon breeding at home.

Even in times of crisis, when some types of businesses suffer losses and enterprises are forced to cease operations, there is a demand for such a delicacy as sturgeon and their meat, and there may even be a shortage.

Pools for growing sturgeon can be purchased in different sizes, as far as your premises allow, and you can also supply several containers of different diameters up to 2.5 meters.

In order for water to flow from the well into the pool, you need a pump if you are doing business in the country. Or you can connect the pool to the water supply system if there is a central water supply.

An important element when growing sturgeon is the compressor.

It is necessary to saturate the water with oxygen, without which the fish cannot live.

It is advisable to have a spare compressor; if the first one breaks down, the second unit will take over.

Feeding fish takes quite a lot of time, so to save time, you can purchase an automatic feeder.

This is justified in cases where you do not have enough time or a large number of fish. You need to feed sturgeon fish about 6 times a day.

You need a generator so that in the event of an electrical accident, the process of growing sturgeon will not stop. It is desirable that the total power of the generator be equal to the sum of the power of all mechanisms used and a small reserve.

When organizing the process of growing and breeding sturgeon fish, you may also need pipes, taps, various fittings and fittings.

All the necessary equipment requires certain financial investments, but if everything is organized correctly, the process of breeding sturgeon fish can pay for itself within a year of work.

Water temperature and room for breeding sturgeon fish

But in winter you cannot do without heating the water, otherwise there may be unfavorable conditions for breeding fish, and they may often get sick.

In general, sturgeon can be raised in an apartment where there is running water and sewerage.

In a private house, you can breed sturgeon in any room where there is heating.

A small farm can also be equipped in a greenhouse by connecting the necessary lines for heating air and water.

When calculating the required area of ​​the room, you need to take into account how many pools there will be, based on the fact that one pool requires an area of ​​approximately 11 square meters.

As food for sturgeon fish, special compound feed for such fish species is used. How much feed you need per day depends on the age and weight of the fish; feeding occurs approximately 4-6 times a day.

With automatic feeding, food is supplied to the fish more often.

Payback of the sturgeon fish breeding business

A significant part of the costs is food. For 1000 fry, in order to raise them for sale, you need to purchase feed for 30,000 rubles. Electricity will cost approximately 20,000 rubles a year, this depends on the size of the sturgeon farm.

If you do not count the cost of equipment, then the costs for one period of growing fry will be; for the purchase of fry - 21,000 rubles, for food - 30,000 rubles, for electricity - 21,000 rubles. The total costs will be 72,000 rubles.

If you estimate the profit from selling 1,000 sturgeon weighing 500 grams at 600 rubles per kilogram, you will get a profit of about 300,000 rubles. We subtract expenses from profit, we get 228,000 rubles of net income.

The cost of equipment to start working on raising fry will be approximately 260,000 rubles. This means that in the first year of running a business, the invested costs will almost completely pay for themselves. And already from the second cycle of growing sturgeon fish, a profit of 200,000 rubles will arise from each batch of 1000 fry.

Large entrepreneurs achieve stable profits after two years of work. Also, at the 6th year of life, female sturgeon may develop caviar. Caviar can be sold for about $1,000.

If you are planning to open not a mini-farm for breeding sturgeon, but a large fish farm for the production of sturgeon, then you will also need a solid building, it must be built or rented. Also, with a large volume of production, it will be necessary to hire personnel who will be paid salaries.

Sales of sturgeon fish

Fresh sturgeon can be sold in markets, fish stores, or delivered to restaurants, which usually require about 65 kg of fish per month.

For restaurants to prepare dishes with sturgeon, the ideal option would be a sturgeon weighing 500 grams.

We can confidently say that the sturgeon breeding business is profitable, and in four years you can already organize a large farm with a large annual turnover.

You should start this type of business with a mini-farm of 1000 fry.

Breeding sturgeon at home as a business is not too complicated, but profitable. At the same time, you can create an enterprise even in a small space.

List of what you will need first:

• whitebait;
• tanks;
• heated room;
• feed;
• optional equipment.

Where to get sturgeon fry

It is almost impossible to obtain sturgeon fry at home, since the full development of the embryo requires specific conditions, which are quite difficult to achieve without special equipment and appropriate skills. It is best to purchase fry from large sturgeon fisheries. The average weight of the fry should be about five grams. You should not save on fry - the growth rate and productivity of the fish, and, accordingly, profit, depend on the quality of the fry.

Containers for growing sturgeon

At the initial stage, a plastic (polypropylene) container with a diameter of about 2-3 meters and a depth of 80 centimeters to 1 meter is sufficient. You can order such a tank from a swimming pool manufacturing company. This capacity will allow growing about 800-1100 kilograms of fish per year. You can also use a frame pool of similar dimensions, but in this case it is important to ensure the reliability of the structure. It is better to avoid using cheap Chinese options.

Sturgeon breeding room

Sturgeon cultivation can be established even in a city apartment. To organize an enterprise, a room with an area of ​​30-40 square meters with the ability to maintain a constant temperature of 22-25 degrees Celsius is sufficient. The premises must be equipped with water supply and sewerage.

What to feed sturgeon

The best solution is to purchase special food for sturgeon from companies that breed these fish species. Once you gain experience, you will be able to produce it yourself.

Since the sturgeon is a bottom-dweller and seeks food using its sense of smell, the food must have an attractive smell to the fish and be of sufficient weight to sink rather than float on the surface.

As a rule, sturgeon are given high-calorie feed containing up to 50 percent protein, about 25 percent fat and at least three percent fiber (a fiber content of four to five percent is considered optimal). Additionally, lysine and phosphorus are added to the feed. Moreover, each age group of fish requires special food.

What equipment is needed to grow sturgeon?

Since in the tanks in which the sturgeon will live, it is necessary to ensure filtration, aeration and water purification, as well as maintain a constant temperature of about 20 degrees Celsius, you will need:

• filter;
• pump;
• compressor;
• oxygen generator;
• thermometers;
• oximeter;
• heating system (you can use a heating cable that is used in heated floors).

In addition, automatic feeders will be a worthwhile purchase, which will significantly simplify fish care and provide significant time savings.

How to breed sturgeon

Sturgeon fishing is simple: it is necessary to constantly monitor the proper operation of the equipment, the purity of the water, and the indicators of temperature and oxygen saturation. The water in the tanks must be transparent and visible to the bottom, so it is necessary to promptly remove sediment and waste from the tanks. The average density of fish stocking in tanks should not exceed 60 kilograms of weight per square meter.

Sturgeon is grown to a weight of 500-650 grams, after which it is caught for sale. It is not worthwhile to grow larger fish, as it will be much more difficult to sell. The growth rate of sturgeon is uneven - some individuals (usually about 20 percent of the total) can reach their target weight in five months, while the majority reach this weight in about seven months. This happens because larger and stronger individuals push small fish away from food, taking most of it for themselves.

The grown fish should be removed evenly, and the supply of fry should be uniform.

Who to sell sturgeon fish to?

Sturgeon is a delicacy that is in high demand all over the world. You can sell farmed fish through supermarkets and small fish shops, but the easiest way is to sell it to restaurants. According to statistics, a small restaurant on average consumes from 55 to 65 kilograms of sturgeon monthly.

Profitability of sturgeon breeding

Purchasing the necessary equipment will cost approximately three thousand dollars. Rent of a suitable premises costs $200-300 per month. Initial costs for feed and utilities are about 400-500 dollars. The cost of a high-quality sturgeon fry is about two euros, so you will need to spend about 600-700 euros on a fry. The total cost will be no more than five thousand dollars.

The average income from the sale of one sturgeon is about six dollars. Thus, the net profit will be about 3.5 thousand dollars per year, excluding the sale of caviar. The payback period for the enterprise is up to one and a half years.

In general, there is nothing particularly complicated about sturgeon fish, and such a business brings in quite high profits. In addition, if things go well, the enterprise can easily be expanded.

Sturgeon breeding as a business. Sturgeon breeding conditions. Video of a homemade RAS.

Sturgeon fish farms are a very popular business in European countries. Countries such as France, Uruguay, Italy, as well as China and the USA are leading in the breeding of sturgeon in recirculating water supply installations for the production of black caviar. In our country, this business is only gaining popularity and this niche is almost empty.

Minimal competition allows novice entrepreneurs to engage in sturgeon breeding. Contrary to popular belief, the financial investment required is relatively small if you assemble the RAS yourself. The profit from the sale of black caviar is more than $1000 per 1 kg, the cost of 1 kg of sturgeon is more than $20.

Sturgeon breeding.

The sturgeon is listed in the Red Book, catching it in natural reservoirs is prohibited, the fine for catching an individual is more than 10,000 rubles. The shortage of sturgeon, and primarily black caviar, has pushed entrepreneurs to grow these types of fish in artificial reservoirs using closed water supply technologies, which make it possible not only to breed and grow sturgeon, but also to obtain black caviar from the fish.

In our country, the most common types of sturgeon are beluga, Siberian, Russian, stellate sturgeon, thorn, and sterlet. You can get caviar from sturgeon on a farm no earlier than 7 years, and this process cannot be accelerated. On fish farms they usually breed Siberian freshwater sturgeon and its hybrids, it is less whimsical, its period of puberty begins at 7 - 9 years, but Beluga is more demanding in terms of maintenance, the first caviar can be obtained from females at the age of 18. Therefore, it is practically not grown for caviar, although the cost of 1 kg of Beluga caviar exceeds $10,000.

Growing sturgeon requires special conditions, so they cannot live in most ordinary bodies of water. Sturgeon requires constantly running clean water with a high oxygen content, and the water temperature should not exceed 24 ° C; the optimal water temperature for sturgeon is 18 - 20 ° C. It is very difficult to create such conditions in most natural reservoirs, therefore, for sturgeon breeding, ichthyologists developed a closed water supply system.

Sturgeon breeding in RAS.

A closed water supply installation, or RAS for short, is a system consisting of:

• Pools.
• Oxygen generator.
• Water purification filters – mechanical drum filter, carbon filter, biofilter.
• Circulation pumps.
• Ozonizer and flotator.
• Oxygen, pressure, pH sensors.
• Air compressor.
• Ultraviolet lamp for water disinfection.
• Heat exchangers for heating and cooling water.
• Pipelines.

Pools are used in round or rectangular shapes; they can be polypropylene, metal with enamel coating, permanent ones made of concrete and ceramic tiles, or collapsible frame ones. Typically, polypropylene round pools with a depth of 1–1.5 m and a width of 2.5 m or more are used for RAS.

Purified water enriched with oxygen is constantly supplied to the pools, and part of the water is gradually pumped back, which is passed through purification filters, enriched with oxygen, and then pumped back into the pools with fish.

The water in the system is in constant circular circulation, while some of the water from the purification filters is still drained into the sewer system, and some of the water is pumped from the water supply system.

Water does not flow into the pools as a stream, but in the form of a shower; this method is used to additionally saturate the water with air.

Regardless of the time of year, the water temperature in the system is maintained at 18 – 20 °C. In winter, water heaters are used, in summer, coolers with heat exchangers are used.

As is known under natural conditions in winter, as the water temperature drops, the growth of sturgeon slows down significantly; the optimal temperature is constantly maintained in the RAS, and the fish does not stop growing. If in nature the sturgeon reaches sexual maturity at about the 15th year, then in a recirculation system it is already at 6–7 years. Starting from the age of 7, in a sturgeon farm, you can already receive caviar for fry production and sale.

The installation is located in a heated room, which can be a hangar, greenhouse, or any indoor space.

Sturgeon breeding conditions.

To start breeding sturgeon you will need to purchase fry. You can buy 5 gram fry in almost every sturgeon farm, the cost is about 15 rubles. a piece. Particular difficulty arises during transportation, because just a container with water is not enough for the fry; you will need to fit an aquarium air compressor into the container.

Before releasing the fry into the pools, the water temperature in the pools and in the container with the fry should be equalized.

In nature, sturgeon lead a bottom-dwelling lifestyle and feed on a variety of plankton, small fish, insects, worms, and mollusks. When kept in a recirculation system, natural feed is replaced with balanced feed with a high protein content. Each age of fish has its own food; the older the fish, the larger the size of the food granules used.

Experts recommend that beginners start with imported food; over time, you can learn how to make food yourself. As additional protein supplements for adult fish, boiled eggs of waterfowl - geese, ducks, as well as minced fish can be added to the feed.

At the age of up to one year, the fish is called a fingerling, then it becomes a yearling. Yearlings already weigh about 500 grams, this weight in restaurants is called portioned, from live fish weighing 500 grams, a cooked portion of 350 - 370 grams is obtained. Therefore, to sell sturgeon to restaurants, it is enough to grow fish up to a weight of 500 grams.

If you want to get caviar, the fish needs to be raised for about 7 years.

At the onset of puberty, in order for the fish to spawn, additional hormones are injected into it.

During the spawning period in females, the amount of eggs for the first time is 15% of the total weight of the female, in subsequent times more than 25%.

In nature, about 3% of the fry survive and grow from eggs; in a fish farm, this figure is more than 70%. During the spawning period, caviar is removed from the female, and milk is extracted from the male by milking, but the fish does not die, it is released back into the pools, and caviar is also obtained from the fish the next year.

Eggs in trays with water are fertilized and placed in incubators with running water. Under natural conditions, larvae develop from eggs only in running water, so the design of the incubator is built in such a way as to recreate the conditions for the development of larvae from eggs.

The incubator is a structure of several upper rows of trays, into which water is constantly drawn from pipes, and lower rows with eggs.

When the top tray is full of water, it hits the bottom tray and pours water into the tray with eggs. At the same time, the eggs in the tray are shaken and float, thus the eggs are constantly saturated with oxygen and washed with water.

A week later, sturgeon larvae emerge from the eggs and are transferred to the pool. The larvae grow very quickly and within a month they turn into fry.

Sturgeon breeding as a business.

Sturgeon breeding is certainly a promising business, but the complexity of RAS technology forces many entrepreneurs to abandon such an undertaking.

If you are interested in sturgeon breeding, study the literature, visit the nearest sturgeon farm and consult with specialists.

You can find owners of sturgeon farms on forums on the Internet. It is not necessary to buy the entire RAS installation; you can assemble it yourself, which will be much cheaper; all components are on sale.

There will be no problems with the sale of fish and black caviar, since there are practically no competitors in this business and the price for these products is consistently high.

Breeding sturgeon in a homemade RAS video (video author Aleksej Rublev).

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