How to breed Jiwei shrimp and how to breed Jiwei shrimp?

1. Site selection.

The breeding site is similar to the site of raising other fish and shrimp, you can build or use the rural pond by yourself, the size is suitable for 2-5 acres, the water depth is between 1-2 meters is the best, the pond should have some slope, slightly inclined, which is conducive to drainage. The water quality of the breeding pond must be high, compared with other fish and shrimp, Jiwei shrimp has higher requirements for water quality, and is more sensitive to water pollution, and clear water quality is the key point to ensure its molting and growth.

2. Cleaning and fertilizing bait.

After preparing the breeding site, it should be comprehensively cleaned and disinfected, the pond water is emptied, and then exposed to the sun for 2-3 days before the water can enter, and those ponds with more silt need to be exposed to the sun for about a month, and the disinfection treatment should be strictly carried out after the water intake, and the common quicklime or bleaching powder can be disinfected.

Jiwei shrimp feed on plankton, so about a week before the seedlings, fertilization bait, the basic biological bait in the shrimp pond, fertilization is mainly organic fertilizer and inorganic fertilizer.

3. Put seedlings. Jiwei shrimp is suitable for growing in the water temperature of 18-30 degrees, so the seedlings are generally released around late May, when the temperature is more stable and suitable for seedlings. In order to ensure the survival rate of shrimp seedlings, it is necessary to desalinate a week before the seedlings, and put it in the salt content of the specific gravity water for a week before it can be moved into the breeding pond.

4. Breeding management.

When the shrimp seedlings are put into the pond, it is the daily management, mainly water quality, bait, disease prevention and control management, etc. Water quality management is extremely important, and then shrimp seedlings are stocked for about 10 days, water should be gradually added, and sprinkled with quicklime or bleaching powder to improve water quality, disinfection and sterilization.

When the water temperature reaches 24-30 degrees, the feeding intake of Jiwei shrimp will increase greatly, and this is also the period of its rapid growth, so it is necessary to increase the feeding to ensure food**; Disease management is mainly prevention, and quicklime mold is regularly sprinkled in each time period, and calcium can also be supplemented to promote hulling growth.

Breeding conditions of Jiwei shrimp.

1.Water temperature: Jiwei shrimp has a wide range of adaptation to water temperature, which is distributed in the sea area 8-29, and the water temperature for breeding is 18-25.

2.Salinity: Litopenaeus chinensis is a widely saline species, with a salinity range of 0-34.

3.Food: Jiwei shrimp is omnivorous and paraphyristic, mainly preying on benthic organisms, and also feeds on benthic plankton and swimming organisms.

4.Cycle: The breeding cycle of Jiwei shrimp is about 100-120 days, and the shrimp body can be marketed when it reaches 8-10 cm.

Pictured: Kiwei shrimp.

Second, the cultivation method of Jiwei shrimp.

1.Pond cleaning: Jiwei shrimp breeding pond requires sufficient water source, good water quality, solid land, convenient drainage, 2-10 acres is appropriate, water depth meters, inlet and drainage should be equipped with sieve silk filtration to prevent predators from invading shrimp ponds.

2.Fertilization and bait: Jiwei shrimp seedlings are filtered with 60-80 mesh sieve silk mesh 1 week before stocking, 30 cm of water is entered, 50 kg of fermented animal manure or 5 kg of urea is applied per mu to cultivate basic bait, or the organic fertilizer is put into a woven bag and pushed into the bottom of the pond.

3.Shrimp seedling stocking: Jiwei shrimp seedlings in late May when the water temperature is 18-20 when stocking, but shrimp seedlings need to be desalination for more than a week, generally 3-40,000 cm shrimp seedlings per mu, centimeter seedlings need to be temporarily raised.

4.Bait feeding: Jiwei shrimp seedlings do not need to be fed bait within 1 month, 1 month after feeding with bait and supplemented by fresh fish, shellfish, etc., the amount of bait is 3-5% of body weight, 2-3 times a day, 1 3 during the day, 2 3 in the evening, 7-9 months to increase the amount of bait.

5.Water diversion and disease prevention: Jiwei shrimp seedlings began to gradually add water after 10 days of stocking, add 10-15 cm of water per week, change the water 20-30 cm every 2-3 days in the high temperature season, splash 5-10 kg of slurry with quicklime every half month, and mix 1-3 garlic bait at 15-20 days.

6.Timely harvesting: the harvesting time of Jiwei shrimp mainly depends on the growth of adult shrimp and market requirements, generally in freshwater ponds for 80-100 days to reach 7-10 cm long commercial specifications, can be carried out by rotation fishing method.

Jiwei shrimp, commonly known as sand shrimp, is a wide-temperature and wide-salt shrimp. The temperature resistance range is 10 37, the optimal temperature is 17 32, and the ability to resist hypoxia is stronger than that of shrimp. Generally, the yield per mu can reach 80 150 kg, and the following matters should be paid attention to in its breeding

1. Pond conditions and cleanup. Choose a freshwater pond or shrimp pond with an area of 3 5 acres, a water depth of meters, sufficient fresh water sources, no pollution, and a sandy bottom.

2. Fertilization and bait. 1 week before the stocking of shrimp seedlings, filter with 60 80 mesh sieve silk, 30 cm of water, and apply 50 kg of base fertilizer (fermented animal manure) or 5 kg of urea per mu to cultivate basic bait.

3. Stocking of shrimp seedlings. Generally, in late May, when the water temperature is stable at 18 20, shrimp fry can be stocked. Shrimp fry need to be desalinated for more than a week, and the specific gravity can be stocked below.

Generally, 340,000 shrimp seedlings are placed per mu, and seedlings below centimeters need to be temporarily raised. The shrimp pond can be polycultured with 80 150 fingerlings of 10 20 cm silver carp.

Fourth, bait feeding. Shrimp seedlings basically do not need to be fed with bait in January when they go down to the pond, and mainly rely on plankton in the pond for food. After 1 month, feed with bait, supplemented by fresh fish, shellfish, etc., and the feeding rate is generally 3% 5% of the body weight of shrimp.

7 In September, the amount of bait can be appropriately increased, with the principle of no residual bait, the number of bait is 2 3 times a day, the amount of bait accounts for 1 3 during the day, and 2 3 in the evening.

5. Water diversion and disease prevention. After 10 days of stocking, the shrimp fry began to be gradually watered, adding 10 to 15 cm per week. Change the water every 2 to 3 days in the high temperature season by 20 to 30 cm.

Every half month or so, 5 10 kg of quicklime slurry is poured on the whole pool, which not only improves water quality and substrate, but also sterilizes and promotes hulling growth. At the same time, 15 to 20 days, should be mixed with 1 3 garlic bait, 3 5 days in a row.

6. Arrest. Generally, 80 100 days of cultivation, the shrimp body is up to 7 10 cm and can be caught according to the market. It can be fished with nets or released into water, and the survival rate can reach 90% after 36 hours out of the water.

The method of cultivating Jiwei shrimp is as follows:

Jiwei shrimp are accustomed to lurking in the bottom silt and aquatic weeds. Paddy fields are required to be close to the upper and lower canals, with sufficient water sources, good water quality, smooth drainage and irrigation, and convenient transportation.

After the shrimp seedlings are in the field, they mainly feed on plankton in the rice fields. After one month, the shrimp seedlings grow to 2-3 cm, and the daily bait is 5%-6% of the shrimp body weight. When the water temperature reaches 24-30, the shrimp feeds vigorously, and the daily bait can be increased to 8-10. Cast 3-4 times a day, including 40% of the day in the evening.

Where conditions permit, plankton and wild trash fish can also be fished for supplementary feed. It is advisable to eat up the shrimp for 2-3 hours each feeding.

The water level of shrimp seedlings is kept at about 5 cm in the early stage. The medium-term water level must not be less than 10 cm. The water quality is required to be fresh, the fertility is moderate, the transparency of the shrimp ditch is between 35-40 cm, and the water color is light green.

Jiwei shrimp is cultivated in paddy fields, and the risk of breeding is relatively large, and the main technical problem is the desalination of seeds. When buying seedlings, be sure to buy faded seedlings, so as not to affect the quality and survival rate of shrimp. It is difficult to adapt to the environment of large areas of rice fields, so it is best to raise them in temporary fields until 2-3 cm, and then put them into rice fields.

The upper and lower water outlets should be tightly tied with a screen, and it is strictly forbidden for wild trash fish or fish eggs to enter the field, so as to avoid small fish competing for food, large fish eating shrimp, and affecting the output per unit area.

Jiwei shrimp has strong adaptability, fast growth rate, and strong disease resistance, so it has also attracted many aquaculture farmers to breed, but although Jiwei shrimp is adaptable, if it is not properly maintained, it will also cause death. The breeding conditions and methods of Jiwei shrimp are very important, and today I will talk to you about the breeding conditions and breeding technology.

First, the breeding conditions of Jiwei shrimp.

1. Water temperature: the water temperature can be adapted from 8 to 29 degrees, and the breeding water temperature is suitable from 18 to 25 degrees.

2. Salinity: The salinity range is between 0 and 34.

3. Food: Jiwei shrimp is omnivorous and partial animal feeders, mainly preying on benthic organisms and plankton on the bottom.

4. Cycle: The breeding cycle is about 100 days to 120 days, and the shrimp body can be marketed when it is 8 to 10 cm.

Second, the cultivation method of Jiwei shrimp.

1. Pond cleaning, Jiwei shrimp breeding pond should have good water quality and convenient drainage, 2 to 10 acres is suitable, the water depth is to meters, and the inlet and drainage should be set up with sieve and silk filtration to prevent harmful organisms from invading the shrimp pond and harming Jiwei shrimp.

2. Fertilize and cultivate bait, filter it with 60 to 80 mesh sieve silk mesh one week before stocking, enter 30 cm of water, and apply 50 kg of fermented animal manure or 5 kg of urea per mu of culture bait, and you can also put organic fertilizer in a woven bag and push it to the bottom of the pool.

3. Shrimp seedlings are stocked, stocked in late May when the water temperature is 18 to 20 degrees, but the shrimp seedlings should be desalined for more than a week, and 3 to 40,000 shrimp seedlings should be put into centimeters per acre, and the shrimp seedlings below the centimeters should be temporarily raised.

4. Feed bait, shrimp seedlings do not need to be fed bait within 1 month in the pond, feed with bait after 1 month, and with fresh fish, shellfish, etc., the amount of bait is three to five percent of body weight, 2 to 3 times a day, one-third during the day, two-thirds in the evening, 7 to 9 months to appropriately increase the amount of feeding.

5. Adjust water to prevent disease, after 10 days of stocking shrimp seedlings, add 10 to 15 cm of water every week, change the water 20 to 30 cm every 2 to 3 days in the high temperature season, splash with 5 to 10 kg of quicklime slurry every half month, and mix 1 3 garlic bait at 15 to 20 days.

6. Timely harvesting, harvesting time mainly depends on the growth of shrimp and market demand, freshwater ponds can grow to 7 to 10 cm long specifications for 80 to 100 days, and can be carried out by rotation fishing.

Farming methods.

Jiwei shrimp is freshwater breeding, seawater enclosure culture, and its name is due to "enclosure culture". In order to avoid flooding, an embankment was built around the field, and the embankment was built around the field, and the embankment was called this Zen god as the foundation enclosure. Some shrimp like to follow the direction of the tide, and then swim to the gentle area of the current under the base area to start spawning, so it is called the base shrimp.

In the early days, the shrimp raised in Jiwei were mainly new shrimp, so it was the most orthodox shrimp in Jiwei. Later, Penaeus longifolia and Penaeus japoichi were also known as Jiwei shrimp.

Tips for raising Jiwei shrimp

1. The construction of the pond: the construction of the pond should choose sufficient water sources, good water quality, convenient drainage of the ground attack party, the area of the shrimp pond should be more than 2 acres, and set up independent inlet and drainage channels, and the injected water should be filtered, and the annular ditch and diagonal ditch should be dug at the bottom of the pond, which can ensure the safe wintering of the shrimp around the base.

2. Desalination of shrimp seedlings: Generally, shrimp seedlings are seawater, so they need to be desalination, and the degree of desalination must reach the pond standard, and then they can be directly moved into fresh water for breeding, and the whole desalination process needs to go through more than 2 days.

3. Water quality management: water quality requires alkaline, and the amount of dissolved oxygen is high, and the water color is yellow-green.

First, the selection of Jiwei shrimp breeding site.

It is required that the water source at the site of the pond is sufficient, the water quality is good, the soil is solid, and the intake and drainage are convenient. The specific requirements are as follows:

1.Site selection. Basically, the requirements are the same as those of fish ponds or the use of original freshwater fish ponds for farming.

2.Shrimp pond area. It is advisable to take 2 10 acres, the water depth is meters, the rectangular shape is better, the slope of the pond embankment is 1 2 1, and the bottom of the pond is slightly inclined to drain water.

3.drainage system. The shrimp pond should have an independent inlet and drainage channel for shrimp drainage and irrigation.

Second, the preparation of Jiwei shrimp before seedling.

1.Clear the pool. For the newly developed shrimp pond, as long as it is exposed to the sun for 2 to 3 days, it can enter the water for water cultivation. For the old pond, it is necessary to clear the stasis and expose it to the sun for a winter, and the pond should be strictly disinfected. About 15 days before the seedlings are released, strict drug disinfection (quicklime, bleaching powder).

2.Cultivating the base bait. 7 10 days before seedling, the shrimp pond was filled with 50 cm of water, and then fertilizer was applied to cultivate the basic biological bait in the shrimp pond. There are two types of fertilization: organic fertilizer and inorganic fertilizer.

Third, the base of shrimp seed stocking.

Shrimp seedling desalination: the success of shrimp desalination breeding in Jiwei, the key lies in the desalination of shrimp seedlings, seedling manufacturers should be gradual in the desalination process, and it is strictly forbidden to surprise desalination. Shrimp fry must be desalinated to a specific salt content before they can be moved directly into fresh water for culture.

Fourth, the management of shrimp farming.

After the shrimp fry are put into the pond, it is the daily management work. In addition to strengthening safety production measures during the breeding period, the main work is water quality management, feeding management, and disease prevention and control.

Breeding base around shrimp, the size of the site in 2-5 acres, the water depth is generally 1-2 meters best, before breeding need to apply fertilizer in the pond to cultivate plankton, for the base around the shrimp to eat, pay attention to the time of seedling breeding is best after May, the breeding process to ensure that the water quality is clean, daily need to feed bait to promote the growth of base shrimp.

1. Breeding site

Breeding base shrimp first need to have a suitable site, we can build our own breeding site, we can also directly breed base shrimp in the pond, the size of the breeding site in 2-5 acres, the water depth is generally 1-2 meters best, note that the pond is best with a slight slope, which is conducive to drainage.

2. Fertilize and cultivate Er

Jiwei shrimp growth needs sufficient nutrients and food, it generally feeds on plankton, before releasing seedlings and breeding, it is necessary to fertilize Pei'er, add an appropriate amount of organic fertilizer and inorganic fertilizer in the pond, sample the water a week later, observe the number of plankton with a microscope, and have enough plankton to put seedlings to breed.

3. Seedling release time

Jiwei shrimp like to grow in a warm environment, the most suitable growth water temperature is between 18-30, so generally after May is the most suitable for seedling breeding, otherwise the seedling time is too early, the water temperature is easy to be low, so that Jiwei shrimp is prone to die of the undesirable phenomenon.

4. Breeding management.

Jiwei shrimp need to grow in clean and clean water quality, in the process of seedling breeding, so that it has sufficient water at the same time, it is also necessary to ensure that the water quality is clean and clean, quicklime can be sprinkled in the water to improve water quality, in the process of breeding, it is also necessary to feed special bait to promote the vigorous growth of Jiwei shrimp.