CATDOLL : CATDOLL: Which fish are suitable for freshwater farming in the north?

1. What fish are suitable for freshwater farming in the north?

The following freshwater fish species are suitable for breeding in northern China

1. Carp Carp is one of the common freshwater fish in the north. They are often found in soft mud bottoms and waters with ditches, slopes, branches, rocks and other places where it is easy to hide or forage. Carp is an omnivorous fish and mainly feeds on vegetarian food. Fresh corn kernels and bran can be used as bait. Additives should mainly be fish meal, shrimp meal, silkworm meal, etc. with fishy smell.

2. White Stripe White Stripe is a primary freshwater fish. It has high requirements for water quality and reproduces quickly. This fish is similar in appearance to the horse mouth and the black bass. White Stripe likes fishy food and is a common fish at low altitudes. It likes to live in groups in the upper water layer of streams, lakes and reservoirs, and the depth of its habitat is generally 0 to 10 meters.

3. The scientific name of the Cockroach is Erythroculter ilishaeformis. It is large and slender. It is a large freshwater economic fish in the middle and upper layers. It moves quickly, is good at jumping, has a violent temperament, and is easily frightened. It grows rapidly and is a ferocious carnivorous fish that feeds mainly on live fish. The Cockroach can grow to the size of a meter and is very large.

4. Crucian carp is one of the common freshwater fish in the north. It grows in small rivers with stable water flow and abundant aquatic plants and plankton.

2. How many kinds of fish are farmed?

Grass carp, black carp, silver carp, bighead carp, carp, crucian carp, bream, and bighead carp are farmed fish. These eight fish are all carp fish, warm-water fish, with large spawning capacity and strong reproductive capacity. They can spawn naturally, have sufficient seedling sources, strong disease resistance, a long history of artificial breeding, and mature artificial breeding technology. The breeding method is flexible, and can be intensive or extensive, and can be fed with artificial bait or commercial fish feed.

3. How to breed Sugitail, a freshwater fish?

Freshwater fish cannot have their water changed frequently.

4. Four models of fish farming?

Including: open breeding, intensive breeding, circulation breeding and isolated breeding. 1. Open breeding is to release fish directly into natural waters. Due to the large water space and natural breeding environment, fish can grow and reproduce freely. This model has the advantages of low cost and abundant resources, but it is also susceptible to restrictions and losses in the natural environment. 2. Intensive breeding is in a closed water body, where fish are concentrated in a small area and the growth of fish is managed and promoted through factors such as artificial feeding and water quality control. This model can efficiently utilize limited feed and water resources, and is conducive to monitoring and controlling the spread of diseases during the breeding process, but there may be problems such as environmental pollution and fish competition. 3. Circulation breeding is to combine water quality treatment technology to complete fish breeding and water recycling within a certain range. Through biological filtration and water flow treatment systems, water quality is kept clean, wastewater discharge is reduced, and breeding efficiency and environmental sustainability are improved. 4. Isolated breeding is to keep fish in closed facilities, completely isolated from the external environment. By controlling factors such as temperature, humidity, and oxygen, a suitable breeding environment is created to improve growth efficiency and quality stability. This model is suitable for the breeding of special fish species, but the cost of facility construction and maintenance is relatively high. In summary, the four models of fish breeding have their own advantages and disadvantages. Choosing the right model requires considering multiple factors such as breeding species, economic costs, and environmental factors.

5. What is the most common freshwater farmed fish in my country in 2017?

Answer: In 2017, the most popular freshwater farmed fish species in my country were the four major carps: common carp, grass carp, silver carp and bighead carp.

6. Which fish has the highest freshwater aquaculture production in my country in 2015?

It should be grass carp. Grass carp has always been the first of the four major carps. It is easy to breed and grows fast.

7. Freshwater fish?

Mullet, silver carp, carp, grass carp, dace, crucian carp, sturgeon, etc. are all freshwater fish.

8. How many species of freshwater fish are there in my country?

There are a total of 1,285 species of freshwater fish in my country, belonging to 22 orders, 86 families and 364 genera.

9. Which fish can be farmed with cow blood? I am from Anhui freshwater fish.

It can mainly breed fish with high demand for carnivorous protein, such as black fish, soft-shelled turtle, turtle, and sea bass.

10. Fish farming technology?

1.

Stocking time selection: Fish should be released on sunny days when the temperature is not too low. Generally, the temperature should be between 2℃ and 5℃. At this stage, the fish scales are tight and the activity is small. It is not easy to injure the fish during fishing, transportation and stocking operations, which can reduce the morbidity and mortality of fish. It is easy to frostbite the fish on rainy days with low temperature or snowy, frozen and windy weather; when the temperature is too high, the fish scales are loose and the activity is large, which is easy to injure the fish during operation.

2.

Stocking of fish: Before stocking the fish, check whether the drugs have lost their effectiveness after pond cleaning. In early spring, the water temperature is low and the toxicity disappears slowly. Water should be taken in advance and test fish should be released. According to the stocking plan, individual size, density, and matching species and specifications, the fish that can be released at one time should not be released in batches, so that the fish can adapt to the environment, start eating early, and promote growth. At the same time, [Gold Iodine] should be used for drug disinfection when stocking fish.

3.

Feeding at the right time When the water temperature rises to 810℃, fish begin to eat, and the amount of food intake gradually increases with the increase of water temperature, so they should be fed in time. Feed once a day or every other day, and choose to feed at noon on a sunny day; as the water temperature continues to rise, the number of feedings can be increased to twice, that is, feeding once in the morning and once in the afternoon. Feeding should adhere to the principle of four determinations (timing, quality, positioning, and quantity), and the specific daily feeding amount should be flexibly controlled according to the weather, water temperature, and the feeding situation of fish. For grass carp weighing more than 1 jin, it is recommended to feed Da Beinong high-grade expanded feed 8103 in the early stage of feeding; for small grass carp mode, it is recommended to feed Da Beinong microecological juvenile fish special feed [Intestinal Liver Health], and the feeding rate is controlled at about 0.5%1%. This product is rich in nutrients and probiotics, which can quickly repair the fish intestines, restore the physique, and improve immunity.