CATDOLL : CATDOLL: How to keep mud shrimp alive for three days? Are mud shrimp sea shrimp or river shrimp?

How to keep mud shrimp alive for three days? Are mud shrimp sea shrimp or river shrimp?

1. Raise in a refrigerator: first spread a wet paper towel on the fresh-keeping layer of the refrigerator, then put the shrimp in. Note that it cannot be placed in the freezer to prevent the shrimp from freezing to death. 2. Raise in a water tank: Pour clean river water into a water tank, then put the shrimp in. Change the water once a day to ensure that there is enough oxygen in the water. 3. Raise in a basin: drip a few drops of cooking oil into the basin containing the shrimp, and then place it in a cool place for breeding. 4. Raise in mud and sand: first spread clean mud and sand in the basin, then put the shrimp in. This method has high requirements for mud and sand, and it is easy to cause the shrimp to die if you are not careful.

1. How to keep shrimp alive for three days

1. Keep in refrigerator

(1) First, place a layer of wet paper towels on the refrigerator's fresh-keeping layer, use the refrigerator's cold air to keep the paper towels moist, and then spread the shrimps flat on it.

(2) Please note that the shrimps cannot be placed in the freezer because the temperature in the freezer is too low and may cause the shrimps to die.

2. Use a water tank to raise

(1) First, prepare a water tank of appropriate size and fill it with clean river water, then place the shrimp in it.

(2) Please note that in order to ensure the fluidity and oxygen content of the water, the water needs to be changed once a day, which generally allows the shrimp to survive better.

3. Use a basin to grow

(1) First, prepare a basin of water and put the shrimp into the water. Then, drop a few drops of cooking oil into the basin and place it in a cool place for breeding.

(2) This method can not only preserve freshness, but also encourage the shrimp to spit out the mud and sand in its body.

4. Use sediment to raise

(1) First, prepare an appropriate amount of clean sand, then spread the sand in a basin of water, and then put the shrimp in.

(2) Please note that this method is relatively rare and has high requirements for sand quality. If you are not careful, the shrimp will die due to poor breathing.

2. Is the mud shrimp a sea shrimp or a river shrimp?

1. Is it sea shrimp or river shrimp?

Prawns are generally marine shrimps with strong adaptability and strong tolerance to low salt, high water temperature and low dissolved oxygen. They can generally be farmed in fresh water, but the shrimp fry need to be desalinated before farming.

2. Breeding points

(1) Build a breeding pond in a place with sufficient water source, clean and pollution-free. The water depth of the breeding pond is generally 1.5-2.5m.

(2) When the water temperature is 18-20℃, shrimp fry are released. Usually 30,000 to 40,000 shrimp fry can be released per acre.

(3) Generally, no bait is required in the first month after stocking, allowing the shrimp to feed on plankton. After one month, the shrimp can be fed with appropriate feed according to their weight.

(4) Artificial compound feed can usually be used in combination with freshwater shellfish, miscellaneous fish and other feeds for feeding. The specific feeding amount needs to be flexibly controlled according to the season, water temperature and water quality.

What is the normal salinity for shrimp farming?

The water temperature that the shrimp can adapt to is 10-37℃, and the optimal growth temperature is 17-32℃. The suitable salinity is 3.5%.

It has a strong tolerance to low dissolved oxygen and can live normally in water with a pH value of 7.0 to 9.0.

1. It tastes best when chilled! Buy a lot of white ice, freeze the fresh shrimps in white ice cubes and keep them icy cold.

2. Soak the shrimps in Erguotou and eat them raw after 45 minutes. It doesn’t matter whether you add mustard or not.

Nutritional description:

1. Prawns are rich in nutrition, and their meat is soft and easy to digest. They are excellent food for people who are weak or need to recuperate after illness.

2. Prawns are rich in magnesium, which plays an important role in regulating heart activity and can protect the cardiovascular system. It can reduce the cholesterol content in the blood, prevent arteriosclerosis, and dilate the coronary arteries, which is beneficial for preventing hypertension and myocardial infarction.

3. Prawns have a strong lactation effect and are rich in phosphorus and calcium, which is especially beneficial for children and pregnant women.

4. Scientists from Osaka University in Japan recently discovered that astaxanthin in shrimp can help eliminate jet lag caused by jet lag.

Reference for the above content: Baidu Encyclopedia - Raw shrimp

The water temperature that the shrimp can adapt to is 10-37℃, and the optimal growth temperature is 17-32℃. The suitable salinity is 3.5% (it has a wide range of adaptability to salinity and can grow in fresh water and survive in seawater with a salinity of more than 35‰). It has a strong tolerance to low dissolved oxygen and can live normally in water with a pH value of 7.0-9.0.

The blade-headed shrimp is also known as the mud shrimp and sand shrimp. It has no strict selection of bottom texture and lives widely in shallow coastal sandy and muddy bottom areas.

It is native to China, Japan, the Philippines, Malaysia, Indonesia and Australia. It is mainly distributed in the east coast of Japan, the East China Sea and the South China Sea, the Philippines, Malaysia, Indonesia and Australia. In my country, it is widely distributed in the coastal waters south of the Shandong Peninsula. It is also distributed in the Philippines, Malaysia, Indonesia and Australia. The peak spawning period along the coast of my country is from May to August.

Economic Value

Both Penaeus lanceolatus and Penaeus rapae are small and medium-sized shrimps among the economic shrimps. The length of Penaeus lanceolatus is generally 7.5 to 16 cm, and the length of Penaeus rapae is 8 to 15 cm. Both shrimps weigh 4 to 50 grams. The yield in the estuary sea area along the coast of Guangdong is relatively high, and they are fat and thin-shelled, making them the two shrimps with higher economic value in the genus Penaeus prawn. At present, breeding has begun in Guangdong. They can be put on the market after being raised in Hong Kong for about two months. They have a high survival rate in fishing and are relatively durable in transportation. They are an important variety for fishermen in the Pearl River Estuary to export to Hong Kong and Macao. The nutritional value is similar to other shrimps.

Feeding and management

1. Feeding: One month after the shrimp fry are put into the pond, they mainly feed on plankton in the rice fields. One month later, when they grow to 2-3 cm, they are mainly fed with fine artificial compound granular bait (shrimp bait), and the daily feeding amount is 5-6% of the shrimp body weight; when the water temperature reaches 24-30℃, the shrimps will eat vigorously, and the daily feeding amount will increase to 8-10%. Feed 3-4 times a day, and feed once in the evening, accounting for 40% of the whole day. In places where conditions permit, plankton and wild fish can be fished out from external waste pits or rice fields as supplementary feed. It is best for the shrimp to eat all the bait within 2-3 hours each time.

2. Water level control and water quality management: The water level for shrimp seedlings in the early stage of breeding should be kept at about 5cm, and then the water level will gradually deepen as the rice seedlings grow. The water level in the middle stage should not be lower than 10cm. The water quality should be fresh and the fertilizer should be moderate. The transparency of the shrimp breeding ditch should be between 35D40cm, and the water color should be light green. Apply quicklime once every 20 to 25 days, 7.5D10kg per mu.

Fresh water quality and relatively stable physical and chemical factors are important guarantees for the molting and growth of shrimp. Compared with fish, shrimps have higher water quality requirements and are more sensitive to water pollution. It is known that when the dissolved oxygen per liter of water is 8D9mg, it can promote the molting and growth of shrimp, while when it is lower than 3D4mg, it is not conducive to growth. The suitable pH value for shrimp is between 7D9. When it is lower than 7, it is not conducive to molting and metamorphosis. Change the water every 2D3 days in the hot season. The amount of water to be changed is 1/2 of that of the rice field, especially in the rainy season, the daily water exchange volume should reach more than 1/3 to prevent hypoxia.

3. Disease prevention: Adhere to the principle of prevention first, prevention is more important than treatment. Sprinkle quicklime regularly for 5 times during the entire breeding period, with a dosage of 10-15ppm each time to kill bacteria and drive away enemies. At the same time, calcium needs to be supplemented in time to facilitate shrimp molting and growth.

4. Keep good records: Establish archive records and management systems from stocking to catching. Keep good records of air temperature, water temperature, water changes and injections, shrimp growth rate, feeding conditions, etc. every day, and solve problems in time when they are found.