CN212184749U

CN212184749U - Large-scale crayfish seedling cultivation device

Info

Publication number: CN212184749U
Application number: CN202020581913.8U
Authority: CN
Inventors: 王冬武; 何志刚; 李金龙; 向劲; 苏东旭; 吴浩
Original assignee: HUNAN FISHERIES SCIENCE INSTITUTE
Current assignee: HUNAN FISHERIES SCIENCE INSTITUTE
Priority date: 2020-04-18
Filing date: 2020-04-18
Publication date: 2020-12-22
Anticipated expiration: 2030-04-18

Abstract

The utility model discloses a device for culturing large-scale crayfish seedlings on a large scale, which comprises an incubation pool provided with a water inlet pipeline and a drainage pipeline; a film which is supported by a supporting structure and covers the hatching pond is arranged on the hatching pond; the inner wall of the hatching pond is provided with an electric heating part, and the bottom of the hatching pond is provided with an aeration pipe communicated with a fan. The utility model discloses simple structure can draw materials on the spot, and convenient operation easily copies the popularization, can dismantle repetitious usage, practices thrift the cost by a wide margin, effectively improves the crayfish big specification shrimp seedling survival rate, can realize the scale and cultivate, has important application spreading value.

Description

Large-scale crayfish seedling cultivation device

Technical Field

The utility model belongs to the aquaculture device, concretely relates to big specification seedling device is cultivated to cray scale.

Background

Crayfish, the academic name procambarus clarkia: (Procambarus clarkii) In recent years, the meal serving as a main dish pushing product for a plurality of restaurants is very popular with consumers. Consumption demands drive the development of crayfish breeding industry, and the traditional rice shrimp mode breeding method is gradually developed into artificial breeding. Artificial breeding of crayfish mainly builds the reproduction place, and artificial intervention crayfish mating is bred, and the patent that relates to has: the industrial breeding method of procambarus clarkii (CN 201310668984.6), the spring fry breeding method of procambarus clarkii in a pond (CN 201410440459.3), the efficient culture device for raising crayfish seedlings (CN 201822090056.7), the net cage for indoor crayfish incubation (CN 201920248948.7), the crayfish incubation device (CN 201822211610.2) and the like have basically realized the artificial successful breeding of crayfish fries.

Artificial breeding of crayfish has the disadvantages that: (1) most of the existing artificial breeding devices are net cages or frame bodies, the breeding area is small, the breeding quantity and scale are limited, and the large-scale artificial breeding effect of the crayfish is not achieved; (2) the existing artificial breeding device has weak capability of resisting severe weather, and the effect of incubating seedlings in cold weather is not ideal; (3) the cost for building a factory building and a greenhouse is high, the service time is short, and the utilization rate is low; (4) the existing artificial breeding device has low equipment management level, and is easy to have irregular specification when the shrimp seeds have high density, so that large-specification shrimp seeds are difficult to breed.

SUMMERY OF THE UTILITY MODEL

The utility model aims at the defect of prior art, provide a simple structure, can practice thrift the crayfish scale of breed cost by a wide margin and cultivate big specification seedling device.

Realize the utility model discloses the technical scheme that the purpose was adopted as follows:

the utility model provides a device for culturing large-scale crayfish seedlings in large scale, which comprises an incubation pool provided with a water inlet pipeline and a drainage pipeline; a film which is supported by a supporting structure and covers the hatching pond is arranged on the hatching pond; the inner wall of the hatching pond is provided with an electric heating part, and the bottom of the hatching pond is provided with an aeration pipe communicated with a fan.

The hatching pond is a circular or rectangular cement pond, the water inlet pipeline is oppositely arranged on the pond wall, the supporting structure comprises a steel bracket arranged in the middle of the circular or rectangular cement pond, a warp steel wire rope connected between the top of the steel bracket and the pond wall in a radioactive manner, and a weft steel wire rope connected with each warp steel wire rope, and the warp steel wire rope is provided with an elasticity adjusting part; the bottom of the center of the hatching pond is provided with a concave water outlet, and the water outlet is connected with a seedling collecting port outside the hatching pond through a water outlet pipe provided with a valve through a water inlet.

The hatching pond adopts the canvas pond, and the canvas pond passes through the rope by steel frame and supports fixedly, bearing structure is including establishing the steel support of a plurality of archways shape outside the canvas pond, inlet channel and drainage pipe establish respectively in the top and the bottom in the canvas pond.

The hatching pond is internally provided with a bamboo tube and aquatic weeds planted on the aquatic weed frame.

The aquatic weeds are water hyacinth.

Advantageous effects

1. An external steel structure factory building is not required to be built, the construction cost is low, and the cost of cultivation facilities is low;

2. the empty window period of the existing fish spawning pond can be effectively utilized, a cement pond is not required to be newly built, the space and time utilization efficiency of the existing spawning pond is improved, and the construction cost is greatly reduced;

3. the cultivation facilities are simple to erect and convenient to operate, can be flexibly adjusted and disassembled, do not change the application of the original cement pond, and can be repeatedly used for many times;

4. the crayfish breeding and breeding separation can be realized, the crayfish parents are preferentially selected for pairing propagation, the germplasm degradation caused by the close-up propagation of the crayfish is avoided, and the quality is reduced;

5. the cement pond is large in area, large-scale breeding can be achieved, the survival rate of large-size crayfish fries of crayfish is effectively improved, and high-quality crayfish fries are provided for the crayfish breeding industry.

The utility model discloses being equipped with intelligent facilities such as accuse temperature heats, bottom oxygenation, for shrimp seedling builds high-quality growth environment, can realize under bad extreme weather, not influenced by external environment, can compare outdoor big specification shrimp seedling half a month early to a month of cultivating out, early sell the seedling, early breed, obtain big specification commodity shrimp, obtain high price high profit, have important application spreading value.

The technical scheme of the utility model is further explained in the following with the attached drawings.

Drawings

Fig. 1 is a front view of embodiment 1 of the present invention.

Fig. 2 is a plan view of embodiment 1 of the present invention.

Fig. 3 is a front view of embodiment 2 of the present invention.

Fig. 4 is a right side view of embodiment 2 of the present invention.

Detailed Description

Example 1

See fig. 1 and 2, the utility model provides a big specification seedling device is cultivated to crayfish scale, including hatching pond 1, inlet channel 2, drainage pipe 12, outlet 10, steel support 8, support ring 6, warp wire rope 5, weft wire rope 14, the tight regulation part basket screw 4, inflation screw 3, film 7, gas transmission pipeline 16, aeration pipe 9, roots blower (not drawn) and electron constant temperature heating rod 13. The hatching pool 1 is a round cement pool; the water inlet pipeline 2 is arranged on the wall of the pond, the water outlet 10 is downwards concave and is positioned in the center of the bottom of the pond, and the water outlet 10 is connected with a seedling collecting port (not shown) outside the hatching pond 1 through a water outlet pipe 12 with a water inlet provided with a valve 11; the four steel brackets 8 stand around the water outlet 10, and the top parts of the four steel brackets 8 are welded with the fixing rings 6; one end of a radioactive warp steel wire rope 5 is fixed on a fixing ring 6 at the top of a steel bracket 8, the other end of the radioactive warp steel wire rope is fixed on the outer wall of the hatching pond 1 through an expansion screw 3, the tightness degree of the fixed warp steel wire rope 5 is adjusted through a turnbuckle 8, and the number of the warp steel wire rope 5 is set according to the area of the hatching pond 1; the warp steel wire ropes 5 are bound and connected with weft steel wire ropes 14 through binding belts; the steel support 8, the support ring 6, the warp steel wire ropes 5 and the weft steel wire ropes 14 form a support structure, the film 7 is directly laid on the support structure to cover the hatching pond 1, a part 701 of the film 7 is opened in the drawing, and the periphery of the outer side of the film 7 is pressed and fixed by bricks 15 and is used for heat preservation and heating in winter; the Roots blower is arranged in the hatching pond 1 and is more than ten meters away from the hatching pond, so that the influence of the operating noise on the crayfish is avoided, the Roots blower is connected with the aeration pipe 9 through the gas transmission pipeline 16, aeration and oxygenation are carried out from the bottom of a water body, and the high dissolved oxygen of the water body is kept; the electronic constant-temperature heating rod 13 is arranged at the bottom of the pool wall, automatically heats the water body according to the set temperature and provides constant temperature for feeding and growing of the crayfish in the low-temperature period in winter.

The above technical solution can be further optimized as follows:

the hatching pond 1 is a newly built cement pond or an existing fish spawning cement pond, the diameter of the cement pond is 15-25 m, the shape of the cement pond is circular or rectangular, the area of the cement pond is from one hundred square meters to three hundred square meters, the thickness of the pond wall is 0.2-0.3 m, the height of the pond wall is 0.6-0.8 m, and the bottom of the pond is a bowl bottom micro-concave type.

The two water inlet pipelines 2 are oppositely arranged on the pool wall, and can push the water body to flow when water enters.

The water outlet 10 is shielded by a filter screen at ordinary times, the filter screen is opened when the shrimp seeds are collected, and the shrimp seeds are collected by a net bag at the seed collecting port through the water discharge pipe 12 while water is discharged.

The steel support 8 is stainless steel, 3.0 ~ 5.0 cm diameter side pipe, length 1.5 ~ 2.0 m, and four are vertical, respectively have 2 places to cross welding with square pipe from top to bottom.

The warp steel wire ropes 5 and the weft steel wire ropes 14 are made of stainless steel materials, the diameter of each steel wire rope is 2.5-4.0 mm, and the cross section of each steel wire rope is 1-7 strands.

The ribbon is from locking-type nylon ribbon.

The thin film 7 is made of a non-drop film material, is 14-20S thick, and is transparent or white.

A plurality of aeration pipes 9 are laid at the bottom of the hatching pond 1 and are connected with a Roots blower through a gas transmission pipeline 16, and the blower provides oxygen for increasing so as to ensure that the dissolved oxygen in the water body is sufficient.

The power of the Roots blower is 1000-1400 revolutions per minute, and the power of a matched motor is 1.8-2.2 KW. The Roots blower can be changed into an ozone generator, regularly disinfects, degrades and reduces organic substances, and increases oxygen at ordinary times.

The gas transmission pipeline 16 is a PVC pipe or a rubber hose.

The diameter of each micropore on the aeration pipe 9 is 0.03-0.06 mm, and the arrangement density of the micropores is 700-1200/m. The microporous aeration pipe can also be replaced by a microporous aeration coil pipe.

The electronic constant-temperature heating rod 13 is a commercial product, the frequency-variable electronic temperature control is carried out, the power is 1000-1200W, the temperature control range is 15-34 ℃, and automatic overload power-off protection is carried out.

Aquatic plants and bamboo tubes can be arranged in the hatching pond 1, the aquatic plants are transplanted in an aquatic plant frame, and the root systems of the aquatic plants provide inhabitation, shelling and avoidance places for shrimp seedlings; the float of the float grass frame in the water surface of the hatching pond 1, can limit the float grass to grow and spread the whole water surface; the bamboo tubes are placed at the bottom of the pond, and provide mating propagation and quiet and safe egg-laying hatching places for the crayfish parents.

The pasture and water frame is PVC or PPR material water pipe, and the external diameter is 75 ~ 110mm, and length is 2-4m, and four feed pipes enclose into a square or rectangle, and four angles connect with PVC 90 degrees elbows doubly.

The water hyacinth is used as the water hyacinth, the water hyacinth can die outdoors in winter, can survive and live through winter in a greenhouse without special heating for temperature rise, has developed root systems, and can be used as a place for shrimp seedlings to climb to inhabit, ingest, exuviate and hide; the aquatic weeds need to be transplanted into the aquatic weed frame, and the aquatic weeds are strong in reproductive capacity, can spread to the whole hatching pond 1 to cover the whole water surface, so that the crayfishes are anoxic, and the aquatic weed frame is required to limit the growth range of the aquatic weeds. The area of the float grass frame occupies two thirds of the area of the pool.

The diameter of each bamboo tube is 4-8cm, bamboo joints are arranged on one side of each single bamboo tube, and bamboo joints are not arranged on the other side of each single bamboo tube; 10-15 single bamboo tubes are piled up in piles, and bound tightly by iron wires to form a bamboo tube pile.

The shrimp fry breeding time is 10-3 months, the fry breeding time is 4-8 months, and the use time is not conflicted; the bamboo tubes are placed at the bottom of the pool at certain intervals, can be put in a single mode, and can also be bound and put in order to increase the three-dimensional area.

In winter, a film 7 is laid on the steel wire ropes of the umbrella ribs, bricks are used for pressing the film 7 around the hatching pond, and a greenhouse surrounded by the film 7 plays a role in heat preservation; the electronic constant-temperature heating rod 13 is hung on the wall of the tank, the electronic constant-temperature heating rod 13 realizes the automatic temperature control and heating functions, and the proper water body temperature is provided for the crayfish fry to grow in winter.

After the crayfish fries are separated from the parent, a ground cage with the net diameter of 3-4 cm is placed to move away the crayfish parents, and the influence on the growth of the crayfish fries is avoided. And soybean milk prepared by grinding cooked soybeans is sprinkled in the early stage for feeding shrimp larvae and cultivating plankton. And feeding the shrimp larvae with the compound feed to promote growth and culture the shrimp larvae into large-size shrimp larvae in the later period.

The temperature of 20-25 ℃ is set during the growth period of the crayfish fries, the temperature is automatically regulated and controlled by an electronic constant-temperature heating rod and is 10-15 ℃ higher than the temperature outside the shed, and the crayfish fries are guaranteed to be at the proper growth water temperature. During the period, the operation of bottom micropore oxygenation is periodically started every day, so that a high dissolved oxygen environment is provided for shrimp fry growth, and shrimp fry ingestion and growth are promoted.

When the crayfish fries grow to the size of 200-300 tails/kg, the crayfish fries reaching the size are caught by a ground cage with the mesh diameter of 1cm, and the crayfish fries are transferred to a pond for culture or sold to other crayfish farmers.

In the breeding implementation process of two batches of crayfishes in 2018-2020, the large-scale breeding of the crayfish seedlings is successfully realized, the yield is 0.8-1.2 kg of crayfish seedlings per square meter, the crayfish seedlings are in order in specification and are 160-300 tails/kg in weight, the crayfish seedlings can be transferred to a pond and put into a field for breeding or directly sold to farmers needing crayfish seedlings, and 240-360 tail crayfish seedlings are produced in water of about every square meter according to the specification of 300 tails/kg.

Example 2

See fig. 3, fig. 4, the utility model provides an incubation pool 1 also can adopt the canvas pond, the canvas pond is supported fixedly through rope 18 by steel frame 17, the canvas pond is equipped with the bearing structure who constitutes by the steel bracket 8 of arched door shape outward, film 7 lays on bearing structure, cover the canvas pond, a part 701 of film 7 is lifted in the picture, inlet channel 2 and water inlet establish drainage pipe 12 of valve 11 and establish respectively in the top and the bottom of canvas pond, also be equipped with gas transmission pipeline with embodiment 1 the same, the aeration pipe, roots blower electron constant temperature heating rod, also can place pasture and bamboo tube. But without the drain opening 10.

Claims

1. A device for culturing large-scale crayfish seedlings in large scale is characterized by comprising an incubation pool provided with a water inlet pipeline and a drainage pipeline; a film which is supported by a supporting structure and covers the hatching pond is arranged on the hatching pond; the inner wall of the hatching pond is provided with an electric heating part, and the bottom of the hatching pond is provided with an aeration pipe communicated with a fan.

2. The device for large-scale cultivation of large-sized young seedlings by crayfishes according to claim 1, wherein the hatching pond is a circular or rectangular cement pond, the water inlet pipeline is oppositely arranged on the pond wall, the support structure comprises a steel bracket arranged in the middle of the circular or rectangular cement pond, warp steel wire ropes radially connected between the top of the steel bracket and the pond wall, and weft steel wire ropes connected with the warp steel wire ropes, and the warp steel wire ropes are provided with tightness adjusting parts; the bottom of the center of the hatching pond is provided with a concave water outlet, and the water outlet is connected with a seedling collecting port outside the hatching pond through a water outlet pipe provided with a valve through a water inlet.

3. The device for large-scale cultivation of large-sized young seedlings of crayfishes as claimed in claim 1, wherein the hatching pond is a canvas pond supported and fixed by a steel frame through a rope, the supporting structure comprises a plurality of arched steel supports arranged outside the canvas pond, and the water inlet pipeline and the water outlet pipeline are respectively arranged above and at the bottom of the canvas pond.

4. The device for large-scale cultivation of large-size crayfish seedlings according to any one of claims 1 to 3, wherein a bamboo tube and aquatic weeds planted on the aquatic weed frame are arranged in the hatching pond.

5. The device for large-scale cultivation of large-size crayfish seedlings according to claim 4, wherein the aquatic weeds are water hyacinth.