CN205196713U - Extensive seed rearing device of japan's bag shrimp batch production - Google Patents

Abstract

The utility model relates to an industrial large-scale seed cultivation device of Penaeus japonica, which belongs to the technical field of prawn cultivation. It includes a plurality of cultivation pools located in the cultivation room. The cross section of the cultivation pool is circular. There are temperature control, water supply and air supply devices on the cultivation pool. There are several hanging on the inner wall around the cultivation pool for inflating the cultivation pool. At the same time, the air lift device that can drive the water in the pool to rotate in the same direction is equipped with a drainage standpipe at the drain outlet at the bottom of the cultivation pond. pipeline, one end of the sewage pipeline is inserted in the seedling collecting tank. The cultivation device of the utility model has a reasonable structural design, and the adoption of the device can realize industrialization of prawn cultivation and cultivation, high-density, large-size (about 3cm) seed cultivation, shorten the cultivation period in the grow-out pond, and realize multi-crop cultivation in one year.

Description

A kind of industrial large-scale seed cultivation device of Penaeus japonicus

technical field

The utility model relates to an industrial large-scale seed cultivation device of Penaeus japonica, which belongs to the technical field of prawn cultivation.

Background technique

Shrimp is a popular aquatic food. In recent years, high-level ponds and industrial high-density aquaculture water bodies of Litopenaeus vannamei and Penaeus monodon at home and abroad have increased rapidly, and the technology has been perfected day by day. The equivalent yield has reached 7.5kg/m ² or more. Penaeus japonicus is an excellent species of prawns. It can be sold as live shrimps because of its resistance to dry transportation. It has bright color patterns and good taste when eaten raw. It is also favored by the market. The price has always been 3 to 5 times the price of other types of prawns. . Penaeus japonicus is distributed in China's Bohai Sea, Yellow Sea and the western coast of the Korean Peninsula; in my country's coastal areas, it is cultured in both the north and the south. Because Penaeus japonicus has the habit of submerging sand, most of the current farming methods are outdoor earthen pond farming. This breeding method adopts an outdoor 0.3~1.5hm2 earthen pond. The bottom of the pond is made of sandy soil or about 5cm of medium sand 13, seedlings with a body length of about 0.8cm are put in, and technical measures such as artificial bait or biological bait are fed. After the seedlings are put in, because the individual is small and the sand is buried, the early management is very difficult, the survival rate of the seedlings is only about 30%, and the number is difficult to grasp in the later stage, resulting in a general yield of less than (750kg/hm2) and instability.

Contents of the invention

The utility model aims to solve the deficiencies in the prior art, and provides a plant that can carry out industrialized, high-density, large-scale (about 3cm) seedling cultivation, shorten the cultivation period in the cultivation pond, and realize multi-stubble cultivation in one year. Large-scale seedling device and cultivation method of Penaeus japonicus. Using this method, the seedlings are cultivated from 0.8cm in length to about 3cm in length, and the survival rate of Penaeus japonicus can reach more than 80%; when the self-body length of about 3cm is cultivated to commercial shrimp, the survival rate can reach more than 70%, and the yield can reach 1500~ 2250kg/hm2.

A kind of industrial large-scale seed cultivation device of Penaeus japonicus, its special feature is that it comprises a plurality of cultivation ponds 12 located in the cultivation chamber, the cross section of the cultivation ponds 12 is circular, and the cultivation ponds 12 are equipped with temperature control, Water supply and air supply device, hang on the inner wall around the cultivation pond 12 to be used for inflating the air lift device 11 in the cultivation pond 12, and can drive the pool water to rotate to the same direction at the same time, the drainage port at the bottom of the cultivation pond 12 is installed with drainage Standpipe 1, drainage standpipe 1 is arranged with drainage hole 2 on the part pipe body near the bottom of cultivation pool 12, and the bottom of drainage riser 1 is equipped with sewage pipeline 3, and one end of sewage pipeline 3 is inserted in the seedling collection tank 4 Inside;

A cylindrical retaining wall 9 is set up at the outlet of the cultivation pool 12, and a circular sewage collecting area is formed in the cylindrical retaining wall 9, and the cleaned medium sand 13 is laid in the remaining areas outside the sewage collecting area;

The gas lift device 11 includes an outer tube 5 that is at the same height as the cultivation tank 12 and is connected up and down. The outer tube 5 is inserted with an inflatable hose 6, and the end of the inflatable hose 6 located outside the outer tube 5 communicates with the blower. One end of the inflation hose 6 located in the outer tube 5 is connected with the air stone 7, and the outer tube 5 is provided with a guide outlet 8;

The diameter of described drainage vertical pipe 1 is 110cm, and drainage vertical pipe 1 rises to 50cm place from the bottom, every cm Drilling 0.3cm drainage hole ² , the size of described seedling collection groove 4 is: long 100cm * wide 80cm * High 60cm, the upper edge of the seedling collection tank 4 is lower than the sewage valve 105cm, to discharge sewage, control the water level, and collect seedlings;

The bottom of the cultivation pond 12 is approximately funnel-shaped, and the gradient of the outer edge of the bottom of the cultivation pond 12 toward the drain is 4-6%.

A kind of industrial large-scale seed cultivation method of Penaeus japonica, which is special in that it comprises the following steps:

1. Build a breeding pool

Build a circular cultivation pool 12 in the cultivation room, the roof shading rate of the cultivation room is more than 80%, and the indoor light intensity remains at 500 ~ 1000lx, cultivate drainage in the middle of the bottom of the pond, and install a drainage riser 1 at the drain of the cultivation pond 12, Drainage standpipe 1 is arranged with drainage hole 2 on the part pipe body near the bottom of cultivation pond 12, and the bottom of drainage riser 1 is equipped with sewage pipeline 3, and one end of sewage pipeline 3 is inserted in the seedling collecting tank 4;

The cultivation pool 12 is circular, with a diameter of 5m, a pool depth of 1.4m, an effective water depth of 1.1-1.2m, and a gradient of 4-6% from the outer edge of the bottom of the cultivation pool 12 to the outlet;

The diameter of the drainage standpipe 1 is 110cm, and the drainage riser 1 is from the bottom to the 50cm place, and every cm ² drills a drainage hole 2 with a diameter of 0.3cm, and the sewage pipeline 3 is connected with the sewage valve 10 outside the pool. The seedling collecting groove 4 of long 100cm * wide 80cm * height 60cm is pre-built in the corresponding position of blowdown valve 10, and the upper edge of seedling collecting groove 4 is lower than blowdown valve 105cm, with blowdown, control water level, collect seedling;

2. Sanding

Build a cylindrical retaining wall 9 around the drain, and form a sewage collection area with a diameter of 50 cm in the cylindrical retaining wall 9, and lay washed medium sand 13 in the remaining areas outside the sewage collection area;

The cylindrical retaining wall 9 is built with bricks, the width of the cylindrical retaining wall is 6-8cm, and the height of the retaining wall is 6-8cm;

The laying thickness of the medium sand 13 is 4-5cm, and the particle size of the medium sand 13 is 0.5-1.5mm;

3. Install the gas lift device 11

A plurality of gas lift devices 11 are installed around the inner wall of the cultivation pool 12, and an air-dispersing stone is arranged at the bottom of the pool at the same time per m ² to ensure that the total aeration volume per minute of the cultivation pool 12 is 2 to 3% of the effective water body;

The gas lift device 11 includes an outer tube 5 that is at the same height as the cultivation pool 12 and is connected up and down. The outer tube 5 is inserted with an inflatable hose 6. The end of the inflatable hose 6 located outside the outer tube 5 communicates with the blower. One end of the inflatable hose 6 located in the outer tube 5 is connected to the air stone 7, and the outer tube 5 is provided with a guide water outlet 8. The installation positions of the water outlets 8 of all the gas lift devices 11 are the same, and they are all tangential to the pool wall. To ensure that a rotating vortex is formed in the cultivation pool 12, so that impurities such as residual bait and feces are accumulated in the sewage collection area;

4. Disinfection

After the cultivation pond 12 is sanded, the cultivation pond 12 is disinfected;

The specific steps of the disinfection treatment are: enter 15-30 cm of water into the cultivation pool 12, add a chlorine-containing disinfectant to make the available chlorine in the water reach 6 ppm, and after mixing, spray each part of the pool multiple times with the water in the pool containing the disinfectant After soaking for 24 hours, rinse with clean sea water;

5. Intake of water

The fresh seawater after sand filtration, disinfection and sedimentation for 24 hours is filtered with a 200-mesh sieve and sent to the cultivation pool 12. Standby for more than 24 hours;

6. Release the seedlings

Purchase healthy seedlings with a body length of 0.8 cm or more, and control the stocking density at 8,000-12,000 fish/m ² . Before the seedlings enter the pool, slowly add new water to the seedling bag to adapt the seedlings for 1-1.5 hours, and then Spread the seedlings evenly across the pond;

7. Adjust water color

In order to make the bottom of the seedlings, not affected by light, and have a stable environment, when putting the seedlings, the water tone in the cultivation pond 12 is to light reddish brown, so that the transparency reaches 50 ~ 70% of the depth of the water, and then every day according to the water color adjust, supplement;

When the water color is adjusted, 5-8ppm of red shrimp chip bait can be added to the water to adjust the water color;

8. Feed and feed

Start feeding the bait the next day after the seedlings are released, and feed the bait 3 to 5 times from 18:00 to 6:00 the next morning;

The bait of Penaeus japonicus is fed: the bait is fed the next day after the seedlings are released, the special bait for shrimp seedlings and frozen adult artemia are fed in the first 15 days, and the special microparticles of Penaeus japonicus are fed with bait and frozen artemia 15 days later. Adult Artemia; the finished bait and the adult Artemia bait are fed at intervals; the bait shrimp chips and the special microparticles of Penaeus japonicus are combined with the bait particle size and feeding amount according to the product description and with reference to the shrimp body length and feeding conditions. When artemia replaces some shrimp chips or compound bait, the feeding amount can be converted according to Artemia: compound bait (shrimp chips) = 2.5:1;

9. Water quality monitoring and growth monitoring

From 6 to 18 o'clock every day, at intervals of 4 to 6 hours, open the drain valve 10 outside the cultivation pond 12, discharge 1/30-1/20 of the water in the pond, and discharge the residual bait, feces and carapace accumulated in the middle of the cultivation pond out of the pond. Add new water after sewage discharge; add beneficial bacteria to the pool once every 2-4 days, so that the amount of beneficial bacteria in the pool water can reach 10 ⁴ CFU/ml, and take water samples to test the water quality indicators once every 2-4 days;

Every day at 17 o'clock in the afternoon, close the gas lift device 11 to reduce the pool water circulation velocity, and open the gas lift device 11 at 6 o'clock in the next morning;

Every 4 to 6 days, take shrimps at night to check their activity and growth. Every 5 days, the body length growth should reach 4 to 6 mm. If not, check the water quality and whether the bait feeding is appropriate;

10. out of the pool

When the shrimp larvae are 3cm long, they should be taken out of the pond and placed in the outdoor grow-out pond in time, so as not to affect the later growth or cause size differentiation due to excessive density;

When described going out of the pond, when shrimps come out after 18 o'clock, unplug the drainage standpipe 1 in the middle of the cultivation pond 12, open the drain valve 10 outside the cultivation pond 12, and collect shrimps in the seedling collection tank 4 with 20 mesh net cages Seedling.

The industrialized large-scale seed cultivation device of Penaeus japonicus of the utility model and its cultivation method thereof build a cultivation pond 12 indoors and spread sand at the bottom of the cultivation pond 12 to carry out industrialized, high-density, large-scale (about 3cm) seedlings. Cultivation, the survival rate of cultivation can reach more than 80%; large-scale seedlings are provided to the farms, making it easier to grasp the technical links of breeding management. From about 3cm to commercial shrimp farming, the survival rate can reach more than 70%, and the output can reach 1500~2250kg /hm2; and the use of this technology can shorten the cultivation period in the grow-out pond and realize multi-crop cultivation in one year.

Description of drawings

Fig. 1: the structure schematic diagram of industrialized large-scale seed cultivation device of Penaeus japonicus of the utility model;

Figure 2: Schematic diagram of the structure of the utility model gas lift device.

detailed description

The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of them. example. Based on the embodiments of the present utility model, all other embodiments obtained by persons of ordinary skill in the art without creative work belong to the scope of protection of the present utility model.

Example 1

The industrialized large-scale seed cultivation device of Penaeus japonicus of the present embodiment, with reference to accompanying drawing 1-2, comprises a plurality of cultivation pools 12 located in the cultivation room, the cross section of the cultivation pool 12 is circular, and the cultivation pool 12 is equipped with There are temperature control, water supply and air supply devices, and a plurality of gas lift devices 11 for inflating the cultivation pond 12 and driving the water to rotate and flow are suspended on the inner wall surrounding the cultivation pond 12. Drainage riser 1, drainage riser 1 is arranged with drainage holes 2 on the part of the pipe body near the bottom of the cultivation pond 12, and the bottom of the drainage riser 1 is equipped with a sewage pipeline 3, and one end of the sewage pipeline 3 is inserted in the seedling collection tank 4 inside; a cylindrical retaining wall 9 is set up at the outlet of the cultivation pond 12, and a circular sewage collection area is formed in the retaining wall 9; the gas lift device 11 includes an outer pipe 5 that is equal to the cultivation pond 12 and connected up and down, and the outer pipe 5 is connected up and down. The tube 5 is inserted with an inflatable hose 6, the end of the inflatable hose 6 located outside the outer tube 5 communicates with the blower, the end of the inflated hose 6 located in the outer tube 5 is connected with the air stone 7, and the outer tube 5 is provided with There is a water outlet 8; the gradient from the bottom of the cultivation pool 12 to the water outlet is 4-6%.

Example 2

The industrial large-scale seed cultivation method of Penaeus japonica in this embodiment comprises the following cultivation steps:

1. Cultivation room and pool setting

The area of the cultivation room is 600~1000m ² , with a glass fiber reinforced plastic or plastic film roof, the roof shading rate reaches more than 80%, and the indoor light intensity is maintained at 500~1000lx;

The cultivation pool 12 is built indoors. The cultivation pool 12 is circular, with a diameter of 5m, a pool depth of 1.4m, and an effective water depth of 1.1~1.2m; the middle of the cultivation pool is drained, and the gradient from the bottom of the pool to the outlet is 4~6%. Φ110cm pvc drainage riser 1; drainage riser 1 starts from the bottom to 50cm, drills a Φ0.3cm drainage hole ² per cm2; drainage riser 1 passes through the sewage pipeline 3 pre-buried at the bottom of the pool and the outside of the pool The sewage valve 10 is connected, and a seedling collecting tank 4 with a length of 100 cm x a width of 80 cm x a height of 60 cm is pre-built at the corresponding position of the sewage valve 10 outside the pool. Types, each pool is equipped with water, aeration, warming equipment;

2. Sanding

A circular sewage collection area with a diameter of 50 cm is built with bricks around the drain, and a cylindrical retaining wall 9 with a width of 6-8 cm and a height of 6-8 cm is arranged around the sewage collection area. Sand 13 (particle size 0.5~1.5mm), thoroughly clean the sand before laying sand;

3. Setting of inflation and gas lift device 11

A plurality of gas lift devices 11 are installed around the inner wall of the cultivation pool 12, and an air-dispersing stone is arranged at the bottom of the pool at the same time per m ² to ensure that the total aeration volume per minute of the cultivation pool 12 is 2 to 3% of the effective water body;

4. Disinfection

After sanding the pond, fill in 15-30cm of water, add a chlorine-containing disinfectant to make the effective chlorine in the water reach 6ppm, mix well, spray and soak all parts of the pond for 24 hours with disinfectant-containing water in the pond, and then Rinse with clean sea water;

5. Intake water and put seedlings

The fresh seawater after sand filtration, disinfection and sedimentation for 24 hours is filtered into the pool with a 200-mesh sieve silk net. After entering the water, adjust the temperature to 26~28°C, salinity 20~32‰, and fully aerate for more than 24 hours before use. ;

To buy seedlings with a body length of 0.8 cm or more, it is required that the seedlings have uniform size, no viscera, uniform thickness in the front and back of the intestine, clear outline of the liver and pancreas, and healthy seedlings with strong activity. The stocking density of seedlings with a body length of 0.8 cm can be 1 Ten thousand tails/m ² or so. After the seedlings enter the field, slowly add new water in the pond to the seedling bag to adapt the seedlings for 1 hour, and then scatter the seedlings evenly in the whole pond;

6. Adjust water color

When releasing seedlings, add 5-8ppm of red shrimp chip bait to the water to make the water color reddish brown, or add single-celled algae to make the transparency reach 50-70% of the water depth, and then adjust and supplement appropriately according to the water color every day;

7. Feed and feed

Start feeding the bait the next day after the seedlings are released, and feed the bait 3 to 5 times from 18:00 to 6:00 the next morning;

The bait of Penaeus japonicus is fed: the bait is fed the next day after the seedlings are released, the special bait for shrimp seedlings and frozen adult artemia are fed in the first 15 days, and the special microparticles of Penaeus japonicus are fed with bait and frozen artemia 15 days later. Adult Artemia; the finished bait and the adult Artemia bait are fed at intervals; the bait shrimp chips and the special microparticles of Penaeus japonicus are combined with the bait particle size and feeding amount according to the product description and with reference to the shrimp body length and feeding conditions. When artemia replaces feeding part of the compound bait, the feeding amount can be converted according to Artemia: compound bait = 2.5:1;

8. Daily management includes water quality management and growth detection

The water quality requirements meet the fishery water standards; every day from 6 to 18 o'clock, every 4 to 6 hours, open the drain valve outside the pool, discharge the residual bait, feces, and shells accumulated in the middle of the pool out of the pool and exchange 1/30 to 1/20 pool water. Add beneficial bacteria such as Bacillus subtilis, nitrifying bacteria, and photosynthetic bacteria to the pool every 2 to 4 days, so that the amount of each beneficial bacteria in the pool water can reach 10 ⁴ CFU/ml. Take water samples every 2 days to test the water quality indicators once;

Every day at 17 o'clock in the afternoon (0.5 to 1 hour before feeding), close the air lift device 11 to reduce the pool water circulation velocity; turn on the air lift device 11 at 6 o'clock in the next morning;

For growth detection, it is required to take shrimp every 5 days at night to detect activity and growth.

9. out of the pool

When the shrimp larvae reach a length of 3 cm, they should be taken out of the pond and placed in an outdoor grow-out pond in time, so as not to affect the later growth or cause size differentiation due to excessive density. When going out of the pond, when the shrimps come out after 18 o'clock, unplug the drainage standpipe in the middle of the pond, open the sewage valve outside the pond, and collect the shrimp seedlings in the seedling collection tank with a 20-mesh net cage.

In 2014, this technology was adopted in Laizhou City, Shandong Province, and the original indoor fish pond was converted into a 600m ² industrialized large-scale seed cultivation device of Penaeus japonicus. On the 20th, 6.3 million Penaeus japonicus seedlings with a body length of 0.8 cm were purchased from Wanning City, Hainan Province (56 yuan/10,000 fish, a total of 35,300 yuan); using this cultivation method, turn on the boiler and adjust the water temperature to 26°C, and put in Feed the special bait for Penaeus japonica (Honglin Shrimp Chips for the first 15 days, Cheyuan brand compound bait for the next 15 days) and frozen adult artemia. After 29 days of cultivation, the average body length reaches 3cm. As of April 25, a total of 5.206 million large-size seedlings were produced, with a sales price of 230 yuan per 10,000 fish, and an output value of 119,700 yuan; the total cost of bait, labor, and energy was 27,800 yuan, and the profit was 56,600 yuan.

On May 4, 2014, 680,000 Penaeus japonicus seedlings with a body length of 0.8 cm were purchased from Sanya City, Hainan Province (unit price 43 yuan/ten thousand fish, totaling 29,200 yuan), and the second batch of cultivation was carried out. During the second batch of cultivation, because the adult large artemia was on the market in large quantities and the price was cheap, the amount of bait was reduced accordingly, and the amount of adult artemia was increased. Other cultivation methods were the same as the first batch. As of June 10, a total of 5.62 million large-size seedlings with an average body length of 4.2cm have been released from the pool, the sales price is 180 yuan per 10,000 fish, and the output value is 101,200 yuan; the total cost of bait, labor, and energy is 18,500 yuan, and the profit is 53,500 yuan. .

The industrialized large-scale seed cultivation device of Penaeus japonicus of the utility model and its cultivation method thereof build a cultivation pond 12 indoors and spread sand at the bottom of the cultivation pond 12 to carry out industrialized, high-density, large-scale (about 3cm) seedlings. Cultivation, the survival rate of cultivation can reach more than 80%; large-scale seedlings are provided to the farm, making it easier to grasp the technical links of breeding management. From about 3cm to commercial shrimp farming, the survival rate can reach more than 70%, and the output can reach 1500~2250kg /hm2. And the use of this technology can shorten the cultivation period in the grow-out pond and realize multi-crop cultivation in one year.

Claims (4)

1. the extensive seed rearing device of Marsupenaeus japonicus batch production, it is characterized in that comprising the multiple cultivation ponds (12) be located in raising chamber, the cross section of cultivating pond (12) is round, cultivate pond (12) and be provided with temperature control, supply water, feeder, be hung with multiple for inflating in cultivation pond (12) on the inwall of cultivation pond (12), the airlift unit (11) that Chi Shui rotates to same direction can be ordered about simultaneously, cultivate pond (12) bottom discharge mouth place and soil stack (1) is installed, soil stack (1) is laid with osculum (2) on the part body cultivating (12) end, pond, the bottom of soil stack (1) is provided with blowoff line (3), one end of blowoff line (3) is inserted in collection seedling groove (4).

2. according to the extensive seed rearing device of Marsupenaeus japonicus batch production according to claim 1, it is characterized in that the discharge outlet place of described cultivation pond (12) is erected with cylindrical barricade (9), circular dirt colleceting area is formed in cylindrical barricade (9), outside dirt colleceting area, the medium sand (13) cleaned is laid in all the other regions, cultivates at the bottom of pond (12) pond and reduces to 4-6% to discharge outlet direction ratio.

3. according to the extensive seed rearing device of Marsupenaeus japonicus batch production according to claim 1, it is characterized in that described airlift unit (11) comprises and cultivation pond (12) the contour and outer tube (5) connected up and down, inflated hose (6) is inserted with in outer tube (5), one end that inflated hose (6) is positioned at outer tube (5) outside is connected with fan blower, one end that inflated hose (6) is positioned at outer tube (5) is connected with Bubbled stone (7), and outer tube (5) is provided with guide water outlet (8).

4., according to the extensive seed rearing device of Marsupenaeus japonicus batch production according to claim 1, it is characterized in that the diameter of described soil stack (1) is 110cm, soil stack (1) from bottom to 50cm place, every cm ²drill diameter 0.3cm osculum (2) one, described collection seedling groove (4) is of a size of: long 100cm × wide 80cm × high 60cm, collects seedling groove (4) upper limb lower than blowoff valve 105cm, with blowdown, controlling water level, collection seed.