CATDOLL : CATDOLL: Which marine fish are suitable for breeding in the north?

1. What marine fish are suitable for breeding in the north?

Cold-water fish such as rainbow trout, Taimen salmon, and Ussuri whitefish have advantages in breeding in Heilongjiang. Crayfish cannot be bred outdoors under the current temperature conditions in the north. If you have financial strength, you can breed them in a small laboratory and expand the scale when the time is right. Crayfish are mainly grown in Hunan and Hubei. The crayfish in Yuanjiang City, Hunan are good. Maybe there are fewer wild ones now, and they are basically farmed. I wish you success.

2. Which 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.

3. What fish are suitable for breeding in Yunnan?

Silky tail fish. It is found in the Lancang River system in my country and also in Southeast Asia.

The Dianchi high-magnitude crucian carp is a natural triple-magnitude crucian carp population formed in Dianchi Lake and other lakes in the 1970s, all of which are magnetic.

4. Is fish farming a suitable business for the poor?

Grass carp and carp are very suitable. Grass carp does not need to be fed with feed. You can save a lot of money by cutting grass and feeding it yourself.

5. What are the main marine farmed fish in my country?

There are more than 2,200 species of marine fish in my country, of which at least 90 species from 30 families are farmed. The main farmed species include sea bass, grouper, red fish, cobia, crucian carp, sea bream, yellow croaker, pufferfish, and flatfish.

6. Which flat fish are suitable for family breeding?

There are many types of flattened fish, the most typical of which is the sunfish. This fish lives in warm waters. Its head is particularly large, and its body and tail are extremely small, making it look as if the back half of its body has been cut off. Its pectoral fins are very small, while its anal fins and dorsal fins are very long, and from a distance it looks like a "lantern" that children play with.

The skin of the sunfish is rough, and it is said that sharks are reluctant to eat it because of its rough skin. But the tough tissue of the sunfish makes up for its slow movement. Usually, it uses its dorsal and anal fins to paddle in the water, or simply drifts with the current to chase other fish.

The butterfly fish, which lives in tropical coral reefs, has a short and flattened body. Its body color is bright and beautiful, and it moves swiftly and flexibly. It moves freely in the coral reef ecological community, just like a butterfly flying among flowers.

Flat-bodied fish include rays, flounders, plaices, and stingrays that live on the seabed.

They are not very flexible in movement, and rely on their enlarged pectoral fins to move up and down from front to back to propel their bodies forward.

The body of the thorns and true thorns grows into a ball. They can no longer swim and can only float on the sea surface with the tide. Once they encounter danger, they will quickly swell up their bodies and spread their thorns, and even the most vicious enemies will be deterred.

7. What kind of fish are suitable for breeding in the north?

1. Mullet

Mullet can also be called black fish. Its nutritional value is much higher than that of ordinary fish. As soon as we hear the word "black", we know that in general, as long as it is black, it must be more nutritious than white. As for the Northeast, we all know that the winter there is very cold, so many creatures cannot spend the winter safely there. So one reason we choose mullet is that it has a very strong ability to adapt to the environment. Secondly, it grows faster, and its growth cycle is only one-third less than that of other fish. Its main feed is generally small fish, shrimps and insects in the water, so it is relatively easy to raise and does not require too much attention. The price in the market is about five or six yuan. Because it is relatively large, it can generally grow to about six to ten kilograms, so it is also more profitable to sell it.

2. Mandarin fish

Mandarin fish, also known as sweet-scented osmanthus fish, is a relatively rare and precious species. However, due to the improvement of my country's breeding technology, the output of mandarin fish is also quite considerable. Generally speaking, mandarin fish is best suitable for breeding in the Yangtze River Basin in my country, where the water quality of the river is relatively good, and the microorganisms and aquatic shrimps in it are relatively rich, which is very suitable for the growth of mandarin fish. However, in the past few years, due to the strong market demand for mandarin fish, the price has increased to a certain extent, and it has been gradually bred in the Northeast. It was found that mandarin fish can also grow well in the Northeast, because there are relatively few other aquatic breeding in the Northeast, so there are many small fish and shrimps in the water, and mandarin fish is only carnivorous, so there is a large amount of feed for feeding mandarin fish, which not only satisfies the market but also develops another world for fish farming in the Northeast.

3. Yellow catfish

Yellow catfish is also called garfish. We may not be very familiar with this kind of fish. If it were not for the need to investigate it, the editor would have no knowledge of yellow catfish. Maybe I have eaten it somewhere, but I just don’t know it. Yellow catfish has a very good adaptability. It can survive in ponds, streams, rivers and other areas. Unlike other fish, it does not need a lot of oxygen to survive, otherwise it will die of lack of oxygen. They can survive well in places with low oxygen. Secondly, the thermometers where they grow can withstand both low and high temperatures. It is simply a magical existence. Its meat is very tender and has no fish bones, so it is also a very popular fish in the market. Nowadays, people are lazy and hate to pick bones when eating fish, so its breeding is actually a trend of the times.

4. Fathead fish

Fathead fish is also called bighead carp. Now you can see a dish on the menu of many restaurants, that is, chopped pepper fish head or fish head soup. In fact, most fish heads are fathead fish, because its head is much larger than ordinary fish heads, and there is relatively more fish meat on it. It tastes better than many fish, such as crucian carp, carp, silver carp, etc., so the price of fathead fish is slightly more expensive than them. Finally, in recent years, many experts have come up with a research result, the result shows that the most nutritious part of the fish is its head, and the fish head meat is the most delicious and valuable part of the body. Fish head soup is the best nutritious soup, so fathead fish has also become a breeding trend. In addition, fathead fish grows very fast, so it is easier to harvest.

8. What fish are suitable for low-temperature farming in the north?

The climate in the north is generally cold, so it is best to choose freshwater cold-water fish for breeding. One type is freshwater ornamental fish, and the other is freshwater edible fish.

Ornamental fish: goldfish, koi, round-tailed betta, minnow.

Edible fish: The four major fish species are black carp, grass carp, silver carp, bighead carp, crucian carp, carp and black carp.

9. Fish breeding techniques?

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.

Four,

Add organic fertilizer to improve the fertility of the water body. Sanyingshuiwang organic biological fertilizer has a long-lasting fertilizer effect. Yizaoyuan promotes algae growth and quickly fertilizes the water. After the fish pond is cleaned, frozen, and disinfected in winter, the fertility of the water body is low. As the saying goes, raising fish starts with raising water, so fertilizing the pond water is particularly important. In spring, it is best to apply organic fertilizer. It is recommended to use biological fertilizers rich in various trace elements [Sanyingshuiwang] or Yizaoyuan, which are rich in trace elements. The specific amount of fertilizer and frequency should be determined according to the quality of pond water and fertilizer.

The general principle is: early spring, large amount and few times, late spring, small amount and many times. Make the pool water green (including blue-green, yellow-green and bean green) or brown (including yellow-brown, reddish brown and tea-brown), the water transparency is moderate, maintained at about 30 cm, the water temperature is low in early spring, it should be controlled at 20-30 cm, the temperature is high in late spring, it should be controlled at 25-35 cm, the water quality should be kept rich, active, tender and refreshing.

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.