CATDOLL : CATDOLL: Is the base shrimp a freshwater culture? What is the breeding technology of the base shrimp?

1. Is the base shrimp a freshwater culture? What is the breeding technology of the base shrimp?

1. Prawns can be farmed in both freshwater and seawater. 2. To farm prawns, you need to prepare a pond of 2-5 mu to ensure high water quality. 2. Clean and disinfect the pond thoroughly, and expose it to the sun for 2-3 days before adding water. Shrimp ponds with more silt need to be exposed to the sun for about a month. 3. Fertilize and feed the shrimp pond one week before releasing the shrimp fry. 4. Generally, shrimp fry are released in late May, and the shrimp fry can be desalinated a week before.

1. Is the shrimp farmed in freshwater?

1. Prawns can be farmed in both fresh water and sea water. The key point is whether the shrimp fry are desalinated or sea water fry.

2. In fresh water, the water temperature suitable for shrimp farming is 18-30℃. After late May, the temperature is relatively stable, which is suitable for stocking. It takes a week to desalinate the shrimp fry before stocking, so as to ensure the survival rate of the shrimp fry.

3. Generally, 10 days after putting in the shrimp fry, you can gradually add water. You can also sprinkle quicklime or bleaching powder in the water. This can improve the water quality and eliminate germs.

4. One month after the seedlings are planted, the shrimp fry feed on plankton in the shrimp pond. One month later, artificial feed can be mixed with freshwater shellfish, miscellaneous fish, etc. and fed together. The feed can be divided into 2-5 feedings, and the amount fed at night should account for 60% of the daily feeding amount. The amount of feeding can be appropriately increased or decreased according to the season, water temperature, water quality and other conditions.

5. Shrimp ponds need to be sprayed with lime mold every time period to prevent diseases, provide calcium to shrimps, and promote their molting and growth.

2. Shrimp Farming Technology

1. The shrimp pond for breeding mud shrimp can be built by yourself or in rural areas. The size is generally about 2-5 mu and the water depth is about 1-2 meters. The pond has some inclined slopes, which is more conducive to drainage. Mud shrimp requires higher water quality than other fish and shrimp. Higher water quality can ensure its molting and growth.

2. Clean and disinfect the shrimp pond thoroughly, drain the pond water, and then expose it to the sun for 2-3 days before adding water. If there is a lot of silt in the pond, it needs to be exposed to the sun for a month. After adding water, it must also be strictly disinfected. Quicklime and bleaching powder can be used for disinfection.

3. Prawns generally feed on plankton. Generally, about a week before stocking, fertilizers should be applied in the pond, and organic and inorganic fertilizers should be used as the main fertilizers.

4. Generally, shrimp fry are released in late May. The shrimp fry can be desalinated one week before release. The shrimp fry can be cultured in water with a salt content of 1.003 for about a week, and then moved into the breeding pond. Desalination should be carried out step by step, not too hastily, and can be carried out at the same time as fertilization and baiting.

5. After the shrimp fry enter the pond, it is necessary to manage the water quality, feeding, and diseases. When the water temperature reaches 24-30℃, the food intake of the shrimp will increase. During this period, it will grow rapidly, so the amount of bait can be increased to ensure that the shrimp has sufficient food.

2. What are the benefits of artificially raised shrimp to humans?

Artificially farmed shrimp are fed feed throughout the entire process, and some growth hormones are added to the feed to accelerate their growth. They grow very fast, and the types and quantities of amino acids needed for protein synthesis in their bodies are not abundant, which shows that their taste is poor. Wild shrimp grow for a long time and are not fed feed. The amino acid levels in their bodies are more diverse and rich, and they taste better.

3. The origin of "Jiwei Shrimp"?

Because mantis shrimps belong to the sand shrimp family, they are also called mud shrimps. Wild mantis shrimps like to live in sandy and muddy bottoms and shallow seas with low salinity. They usually hide their bodies in the seabed, only protruding their eyes and the front of their heads to breathe, to escape from enemies and wait for food. When the tide is high, they will crawl into some slow-flowing bays to live.

After discovering this characteristic of shrimps, fishermen set up nets or built stone foundations in the inner bay to wait for the shrimps to fall into the trap. The older generation of fishermen called these traps "jiwei" (i.e. using foundation stones to catch), so the shrimps caught with jiwei are also called jiwei shrimps.

More than a decade ago, most of the shrimps were wild shrimps with extremely strong vitality. Today, the shrimps on the table have become artificially cultivated varieties. Their physique is much weaker than before, and their adaptability has also decreased.

4. The origin of "Jiwei Shrimp"?

Shrimp

New shrimps are commonly known as Ma shrimps and Jiwei shrimps. Most people call them Jiwei shrimps. Jiwei shrimps are bred in freshwater and cultured in seawater. They are named because of "enclosure culture". Jiwei shrimps look like prawns, but their shells are softer than prawns, and their bodies are not as big as prawns. They are generally the size of a middle finger. The estuary sea area along the coast of Guangdong has a high yield, and they are fat, thin-shelled, and delicious. Juvenile Jiwei shrimps (no more than 6cm) are dark green to dark green, and adult shrimps (more than 6cm) are light brown-yellow, with dense light brown spots on their bodies. Some js in the market use white shrimps (prawns) to impersonate Jiwei shrimps. When choosing, you should pay attention to the color and spots. It is easy to identify.