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I want to do freshwater aquaculture, what is the most profitable fish now?
Fruitful crucian carp

Fruitful crucian carp is a new all-female crucian carp species cultivated by the Fish Research Laboratory of South China Normal University using fish cell engineering technology, which has the advantages of fast production speed, beautiful body shape, strong adaptability, tender meat and won't be full of fishes in fish ponds due to natural spawning, etc. The fish species can be mixed or main-cultured in ponds that year, and the average weight can reach more than 400 grams at the end of the year, which is better than the average weight of ordinary fish. Fertile crucian carp fish species in the year for pond mixed culture or main culture, to the end of the year, the average weight can reach more than 400 grams, the production speed and group production are better than ordinary crucian carp more than 25%. The cultivation of productive crucian carp is basically the same as that of other crucian carp, with low requirements for the pond environment, wide food habits, few diseases and strong resistance to adversity.

2. California bass

California bass, formerly known as the largemouth bass, taxonomically belongs to the order Perciformes, the sunfish family, native to the Mississippi River system in California, the United States, is a kind of meat, disease resistance, rapid growth, easy to catch, the temperature of the wider range of valuable carnivorous fish. Now through the introduction of species, has been widely distributed in the United States, Canada and other freshwater waters, especially in the Great Lakes, resources are very rich. At present, California perch has also been introduced to Britain, France, South Africa, Brazil, the Philippines and other countries. It was introduced to Taiwan Province of China in the 1970s and has been bred for several generations. Guangdong Shenzhen, Huiyang, Foshan and other places also introduced California perch fry in 1983, and in 1985 one after another successful artificial reproduction. Breeding of fish fry has been introduced to Jiangsu, Zhejiang, Shanghai, Shandong and other places of culture, and have achieved better economic benefits.

California perch has been tried and tested, can be mixed with domestic fish in the pond or monoculture, but also in the clear water pond intensive culture. Because of its solid meat, meat flavor, plus live on the market, in restaurants and hotels in the aquarium can also allow diners to watch the selection, so for the local bass and Mandarin fish is not as good as, can be described as the top of the fish, very best-selling, the price is also higher. In addition, the California perch can be angled by tourists, so by the majority of anglers around the world favorite, which is undoubtedly on the development of angling fisheries, attracting tourists sightseeing, increase economic income is very favorable.

California perch grows faster, the year the breeding of the fry can grow to 0.5 kilograms, reaching the market specification. One week old fish on sexual maturity, can be reproduced, whether in the pool of monoculture or fish ponds in mixed culture, can effectively control the fish ponds in the wild fish and shrimp and tilapia overpopulation, can be said to be a multi-purpose, so it is worth vigorously promote the excellent breeding varieties.

3. Lilac

European lilac is widely distributed in Europe, major inland rivers, lakes, to the Czech Republic, Hungary, Spain, the majority. She with its unique green, yellow, blue, white four kinds of performance color of the body surface and tender meat, delicious taste, high nutritional value, over the centuries has been favored by European consumers, is a delicacy on the table of the Europeans; and is an important swimming fishing, ornamental fish. Hubei Province, foreign famous fish base and Wuhan Asia-Pacific

Fisheries Company in May 1998 for the first time from the Czech Republic will be introduced to China.

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Mixed fish should be related for habits and have similar water quality and water temperature requirements. The ideal fish for mixed culture are silver carp, bighead carp, grass carp, pomfrets, carp, crucian carp, pangasius, mackerel and so on. Mixed culture of fish inhabiting different water layers enables three-dimensional utilization of water space. Compared with monoculture, the density of stocked fish can be increased substantially. The feces of grass carp and cyprinids are not only fertilizers for cultivating plankton, but also provide a large amount of organic debris as well as breeding bacterial communities for silver and bighead carp; carp, pangasius, and crucian carp can remove residual bait and improve the water quality. Not only can it make full use of the water body and improve the production, but it can also reuse the bait and improve the water quality. The same species of fish of different ages and different specifications of mixed farming, but also for a production season in a batch of fishing, balanced market conditions, and at the same time for the next year to cultivate a large size of fish species.

Mixed fish should be divided into primary and secondary, the main fish is the main object of baiting and feeding management. Matching fish play a role in making full use of the water body and bait reuse.

There are four main types of fish culture in Chinese ponds.

The most common type of mixed culture type dominated by grass carp and silver carp. It is characterized by a wide source of feed and fertilizer, low cost, and high yield and economic benefits. The stocking specifications of grass carp are divided into 10 grams, 50 grams and 150 to 500 grams, and the stocking specifications of silver carp are summer flower, 50 grams and 200 to 350 grams; the stocking weights are about 45% and 30% of the total stocking, respectively, and at the same time, bighead carp, doughnut head bream fish and crucian carp are mixed. In high production areas, the net yield per hectare can reach about 11,250 kilograms. Grass carp and bighead carp account for 30% each. The market specification of grass carp is 1.5 to 2 kilograms and silver carp is about 600 grams.

There is also a considerable amount of large-size fish of 150 to 500 grams. Grass carp, bighead carp and pangolin are the main types of mixed culture usually used in the Pearl River Delta. The local water temperature is high, the growing period is long, the water quality is relatively fertile, can be stocked and harvested several times a year, especially bighead carp is prominent. At the same time, silver carp, wild pangolin, etc., as well as an appropriate number of snakeheads and eels can also be stocked to increase returns. Grass carp is stocked at 15 grams and 350 grams, with stocking weight accounting for 35% to 40% of the total stocking. Bighead carp are stocked at 300 to 500 grams and pangolins are stocked at 15 to 25 grams and 50 grams, with stocking weights accounting for about 27% and 19% of the total stocking, respectively. Grass carp are stocked in two batches per year, while bighead carp are stocked in four to six batches. The net yield per hectare in high-yield areas can reach about 12,750 kilograms.

Grass carp and bighead carp are listed at 1 kilogram. Pangasius is about 150 grams, and a considerable number of large-size grass carp and pangasius species are available for the following year's production. Bighead carp and silver carp are the main type of mixed stocking in China for a long period of time is more commonly used type. Bighead carp and silver carp account for about 60% of the total stocking weight, and the ratio of bighead carp to silver carp is about 3-5:1, while grass carp, carp, crucian carp, tilapia, and channel catfish are mixed in the stocking. The bighead and silver carp are listed at more than 500 grams, and the net yield per hectare can reach about 7,500 kilograms.

Carp-based mixed-farming type of northeast China, North China, Northwest China, the main type. One type is stocked with specifications of 50 to 100 grams, carp stocking accounted for 50% to 65% of the total stocking. At the same time, grass carp, silver carp and bighead carp are mixed. Carp market size of about 500 grams, high-yield pools per hectare net production of up to 7,500 to 8,250 kg, carp accounted for 50% to 60%. The other is that carp stocking accounts for 85% to 90% of the total weight. The use of timing, quantitative, fixed-point centralized feeding full-value high-protein feed, the net yield per hectare can be up to 15,000 kilograms, carp accounted for about 85% of the listing specifications of about 500 grams.

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This year, what fish can make money? Become the majority of fish farmers are very concerned about the problem. Through the analysis of the development of famous varieties of culture in recent years, the following fish can make money: First, the culture of freshwater shrimp is still a hot spot in China's freshwater shrimp market is mainly distributed in Guangdong, Guangxi, Jiangsu, Fujian, Shanghai and Zhejiang and other regions. Farming varieties are mainly Rochester, shrimp, shrimp, knife amount of new shrimp, Australian freshwater lobster and so on. Last year, South American white shrimp in Guangdong, Fujian, Jiangsu and other places of successful trial farming, shrimp farming varieties more diversified. At present, with the continuous expansion of the scale of freshwater aquaculture shrimp industry, seedling production is increasingly important. In general, a number of freshwater shrimp species reproduction technology has made significant progress, seed supply will not be a problem. Such as Rhododendron shrimp, although slightly inferior to the taste of green shrimp, but the price of about 40 yuan per kilogram has been accepted by most consumers; commercial shrimp to maintain a relatively stable selling price, the key is to try to avoid the concentration of the market, farmers must be reasonable arrangements for the production plan, to avoid risk. More information about WeChat public number two, turtle farming risks and benefits coexist snapper market prices experienced by the high price to low prices and then to the balance of the development process. It can be seen that, with the improvement of turtle farming technology, the optimization of varieties and cater to the pursuit of natural, nourishing fashion, prices will stabilize and tend to be higher. Artificial turtle as a new industry is quietly emerging in China, including money turtles, snapping turtles are the most publicized varieties, the current demand for seedlings is greater, in short supply stage. But I think, money turtles or snapping turtles, into the commercial market in the end how much capacity space, yet to be tested, farmers should fully consider the potential risks of the market, should not blindly follow the trend. Third, standardized sturgeon aquaculture, market potential is huge China has eight species of sturgeon distributed in the Yangtze River, Heilongjiang and other waterways, representative varieties of Chinese sturgeon, sturgeon, sturgeon, and so on. In addition, the species introduced from abroad are Russian sturgeon, European sturgeon and so on. Regarding the development and utilization of sturgeon, China's "Wildlife Protection Law" stipulates that it must be reproduced to the son of two or more to operate, and stipulates that aquaculture must apply for the business license issued by the fisheries government department. Sturgeon aquaculture after several years of development, some key technical schools have made a breakthrough. Currently investing in sturgeon aquaculture is a better time from the market point of view. Sturgeon is a large fish, sexual maturity is generally more than 10 years, there is a strong limitation, there will not be a rush of the situation. Sturgeon roe known as black gold, sturgeon meat price per kilogram of 150-200 yuan or more, there is no farmed sturgeon on the domestic market for sale, the market is basically blank. Farming enterprises to invest in sturgeon, under the premise of business license, I believe there will be a higher return. Fourth, ornamental fish farming prospects. With the increasing economic income of the people, the quality of life has been substantially improved, aquaculture ornamental fish can not only beautify the family environment, but also adjust the structure of traditional fisheries production. In recent years, ornamental fish farming in Guangzhou continues to develop healthily, an area of 1,600 acres, the scale of ornamental fish, varieties, production has increased year by year, of which goldfish, koi, tropical colorful fish three series **** up to more than 200 varieties. Fifth, the culture of small freshwater varieties of freshwater varieties of eels, loaches, soil lice, mountain spotted fish, silverfish, snails, mussels, puddle snails and so on. The above varieties can be utilized in front of the village, mountain springs and streams to carry out courtyard culture, can be refined breeding, pure breeding, dense breeding, to carry out high-yield and efficient breeding. These small freshwater varieties of large variety of large numbers can be overwintered, staggered season, balanced on-demand market, to obtain better economic benefits. In short, choose which varieties for aquaculture must consider the market capacity and the following factors: the price should be stable, stable and rising; varieties of quality. While prioritizing breeding varieties, the quality of the quality of the variety is also being carefully considered. For this reason, on the choice of breeding seed source, water quality requirements for fresh, no pollution or less pollution, feed, drugs should be careful; regional consumption habits. For example, inland consumption of carp, Guangzhou area consumption of fresh, Hong Kong and Macao consumption of famous special; regional level of economic development. Generally higher than the level of economic development of the coastal areas inland, plains than mountainous areas, urban than rural areas, which determines the coastal areas, plains and urban aquatic products sales prices, consumption, the requirements of the quality of the product we are high; transportation conditions; sales channels. In terms of transportation conditions, sales channels, coastal areas, plains, urban areas than inland areas, mountainous areas, rural areas, perfect, local farmers should be adapted to local conditions, targeted, according to their own funds, technology and marketing capabilities, not a rush, so as not to cause undue losses.

Red snapper, freshwater grouper and so on. The market is rare and in great demand!