CN110583558A

CN110583558A - Pond internal desalting device for penaeus vannamei boone culture and using method thereof

Info

Publication number: CN110583558A
Application number: CN201911007583.XA
Authority: CN
Inventors: 柯华; 邓小敏
Original assignee: Shaanxi Yijiayi Agricultural Science And Technology Development Co Ltd
Current assignee: Shaanxi Yijiayi Agricultural Science And Technology Development Co Ltd
Priority date: 2019-10-22
Filing date: 2019-10-22
Publication date: 2019-12-20

Abstract

The invention discloses a desalting device in a pond for culturing penaeus vannamei boone, which comprises an independent sealed enclosure. And a plurality of spray heads are arranged on the water outlet pipeline of the circulating water pump. The sealed enclosure is provided with a plurality of switchable seedling placing openings. By using the device in the pond, the survival rate of the seedlings released in the freshwater pond of the penaeus vannamei boone can be more than 80 percent.

Description

Pond internal desalting device for penaeus vannamei boone culture and using method thereof

Technical Field

The invention relates to the technical field of aquaculture, in particular to a desalting device in a pond for culturing penaeus vannamei boone and a using method thereof.

Background

Penaeus vannamei, also commonly known as white-leg shrimp (white-leg shrimp) and white prawn (white shrimp), has been translated into Penaeus vannamei Boone, is similar to Penaeus vannamei Boone and Penaeus margaricus in appearance, and has an average life of at least 32 months. The longest length of the adult can reach 24cm, the carapace is thin, the normal body color is light grey, and no speckle exists in the whole body. The feet are often chalk-like, so the shrimps are called as white shrimps, and the meat is delicious and has high economic value.

The environment requirement of young shrimps of the penaeus vannamei boone is high in the early growth stage, the salinity of water cannot be well controlled when the traditional water pool is used for culturing, the mortality rate of the young shrimps of the penaeus vannamei boone is high under the condition that pure fresh water (0.1 thousandth) is directly desalted in the indoor intensive culture pool, the survival rate of the young shrimps of the penaeus vannamei boone is also low after the young shrimps are directly discharged into the fresh water pool when the salinity of the indoor intensive culture pool is reduced to two thousandth, in addition, a large amount of artificial sea salt or halogen salt needs to be added into the culture pool in order to improve the survival rate of the young shrimps released from the pool after the desalination in the traditional technology, the culture cost is increased, and the salinization of. In view of the above, there is a need to provide a new desalination plant and a method of using the same to solve the above problems.

Disclosure of Invention

In order to solve the technical problem, the invention provides a desalting device in a pond for culturing penaeus vannamei boone, which comprises an independent sealed closed enclosure, and is characterized in that a water level communicating pipeline is pre-buried at the bottom of the closed enclosure, folding doors are arranged on two sides of the closed enclosure, an overflow channel is further arranged on the closed enclosure, an oxygen increasing device and a circulating water pump are arranged in the closed enclosure, the oxygen increasing device comprises a nanometer air disc and an oxygen increasing fan, and a T-shaped spraying PVC pipe with holes is arranged at the outlet of a water outlet pipeline of the circulating water pump.

The further scheme is that the ratio of the area in the closed enclosure to the area of the pond is 1: 100.

the further proposal is that the aeration tail end is a nano air disk with the diameter of 60cm or other aeration tail ends which can achieve the same effect and is uniformly placed in a mode of using 0.6 m aeration nano tubes per square area.

The further scheme is that the oxygen increasing equipment selects an oxygen increasing fan or other oxygen increasing equipment capable of achieving the same effect according to the power consumption calculated by 6 watts per square meter.

The further scheme is that the water pump is selected according to the flow calculated by the circulating water amount of 200L per hour per square meter.

According to the desalting device in the pond for culturing the penaeus vannamei boone, the using method comprises the following steps:

s1, after water enters the aquaculture pond, uniformly adjusting the water levels inside and outside the aquaculture pond to 1 meter, adding 1 kilogram of artificial seawater elements into each cubic body of water in a water treatment area of the aquaculture pond, and adjusting the salinity to 1 ppt;

s2, starting an oxygenation device of the device, and adjusting the water quality to be optimal by splashing micro-ecological water-adjusting products;

s3, desalting the Penaeus vannamei Boone fry in the indoor intensive culture pond to 1ppt, carrying out oxygenation transportation to the pond through a waterwheel, directly taking the shrimp fry, putting the shrimp fry into a water treatment area of the device, and simultaneously sprinkling vitamin anti-stress products to prevent stress reaction;

s4, starting a circulating water pump facility of the device, and simultaneously observing and comparing the salinity reduction speed of the water treatment area;

s5, when the salinity of the water treatment area of the device is detected to be consistent with the salinity of the pond, the shrimp larvae are slowly swim into the pond by opening the shrimp larvae discharging port on the closed enclosure, and the oxygen increasing fan and the circulating water pump are closed.

The invention has the following beneficial effects:

(1) the young penaeus vannamei boone can be directly put into a desalting device in the pond in the research and development technology when the salinity of the young penaeus vannamei boone is desalted to two thousandth in an indoor intensive culture pond;

(2) when the salinity of the shrimp larvae is desalted to two thousandth in the indoor intensive culture pond, the survival rate and the transportation distance of the shrimp larvae can be increased during transportation;

(3) by using the device in the pond, the use of artificial sea salt, brine or halogen salt on the large-area culture water surface can be avoided, the production cost is reduced, and the salinization of soil and water areas is prevented;

(4) by arranging the overflow port on the closed enclosure, the situation that the penaeus vannamei boone is desalinated from indoor intensive culture to pure fresh water in a pond for seeding can be realized for the first time;

(5) the oxygenation device and the circulating water pump provided by the invention can realize the survival rate of the seedlings in the freshwater pond of the penaeus vannamei boone of more than 80 percent.

Drawings

FIG. 1 is a schematic structural view of a desalination device in a pond for culturing Penaeus vannamei Boone provided by the invention;

in the figure: 1 closed enclosure, 2 water pump, 3 spray header, 4 water level communicating pipe, 5 oxygenation aeration tail end, 6 oxygenation equipment, 7 water inlet pipe, 8 aquaculture pond water inlet, 9 seedling outlet and 10 oxygenation pipe.

Detailed Description

The invention will be further explained with reference to the drawings and the embodiments.

Example 1

As shown in fig. 1, the invention provides a desalination device in a pond for penaeus vannamei boone cultivation, which comprises an independent sealed enclosure 1, wherein an oxygen increasing device and a circulating water pump 2 are arranged in the sealed enclosure 1, the oxygen increasing device comprises an oxygen increasing device 6, an oxygen increasing pipeline 10 and an oxygen increasing aeration tail end 5, the sealed enclosure is also provided with an overflow port 4 and a plurality of seedling discharging ports 9, the overflow port 4 is communicated with the seedling discharging ports 9 and an external pond, a plurality of spray headers 3 are arranged on a water inlet pipeline 7 of the circulating water pump 2, and the ratio of the internal area of the sealed enclosure to the area of the pond is 1: 100. according to the unit area water body in the water treatment area of the device, the required oxygenation device and the flow of the circulating water pump 2 of the device are checked, and the method comprises the following specific steps: the aeration tail end 5 is uniformly provided with a nano air disc 5 with the diameter of 60cm in a mode of using 0.6 meter of aeration nano tube per square area, namely, a nano air disc with the diameter of 60cm is used per 3 square; the oxygenation equipment 6 calculates the power of the oxygenation fan according to 6 watts per square meter; the oxygen increasing fan increases the air flow speed of the nano air disc 5 through the oxygen increasing pipeline 10, and increases the oxygen content; and (3) calculating the flow of the circulating water pump 2: the flow rate of the circulating water pump 2 was calculated as the amount of circulating water of 200L per hour per square meter. Through a plurality of shower heads 3 arranged on the water inlet pipe 7 of the circulating water pump 2, the aquaculture pond water 8 can flow into the water treatment area like a shower through the water inlet pipe 7.

The advantage of this embodiment lies in, desalination device in the pond in this research and development technique can directly be put into to south america white shrimp fry when the desalination reaches two per thousand salinity in indoor intensive culture pond, can improve the survival rate and the transport distance of transportation during the shrimp fry transportation.

Example 2

On the basis of embodiment 1, the embodiment discloses the specific steps of using the desalination device in the pond:

s4, starting a circulating water pump 2 facility of the device, and simultaneously observing and comparing the salinity reduction speed of the water treatment area;

s5, when the salinity of the water treatment area of the device is detected to be consistent with the salinity of the pond, opening the shrimp larvae discharging port 9 on the closed enclosure to enable the shrimp larvae to slowly swim into the pond, and closing the oxygen increasing device 6 and the circulating water pump 2;

the embodiment has the advantages that by using the device in the pond, the use of artificial sea salt, brine or halogen salt on the large-area culture water surface can be avoided, the production cost is reduced, and the salinization of soil and water areas is prevented; by using the device disclosed by the invention in a pond, the situation that the penaeus vannamei boone is desalinated from indoor intensive culture to pure fresh water in the pond for seeding can be realized for the first time; by using the device in the pond, the survival rate of the seedlings released in the freshwater pond of the penaeus vannamei boone can be more than 80 percent.

The above description is only an embodiment of the present invention, and not intended to limit the scope of the present invention, and all modifications of equivalent structures and equivalent processes, which are made by using the contents of the present specification and the accompanying drawings, or directly or indirectly applied to other related technical fields, are included in the scope of the present invention.

Claims

1. The utility model provides a desalination device in pond for south america white shrimp is bred, encloses the fender including an independent closure, its characterized in that, it is provided with oxygenation device and circulating water pump in enclosing the fender to seal, oxygenation device includes that oxygenation equipment, oxygenation pipeline and oxygenation aeration are terminal, it sets up the overflow mouth and communicates with each other with outside pond to seal to enclose the fender, be provided with a plurality of shower heads on circulating water pump's the outlet conduit, seal and enclose and keep off and set up the seedling mouth of putting of a plurality of switchings.

2. The in-pond desalination device for penaeus vannamei boone cultivation according to claim 1, wherein the ratio of the area in the closed enclosure to the area in the pond is 1: 100.

3. the pond internal desalting device for penaeus vannamei boone aquaculture according to claim 2, wherein the oxygen increasing aeration tail end is a nano air disc with the diameter of 60cm or other oxygen increasing aeration tail ends capable of achieving the same effect, which is uniformly placed in a mode that 0.6 m of oxygen increasing nano tubes are used per square meter of area.

4. The in-pond desalination device for penaeus vannamei boone cultivation according to claim 3, wherein the oxygen increasing device is an oxygen increasing fan or an oxygen increasing device capable of achieving the same effect according to power consumption calculated by 6 watts per square meter.

5. The in-pond desalination device for penaeus vannamei boone cultivation according to claim 4, wherein a water pump is selected according to the flow calculated according to the circulating water amount of 200L per hour per square meter.

6. The in-pond desalination device for penaeus vannamei boone cultivation according to any one of claims 1 to 5, wherein the specific use method comprises the following steps: