CN201135078Y - A water-saving and mildew-proof hatching device suitable for fertilized eggs of yellow catfish - Google Patents

Abstract

The utility model discloses a water-saving and waterproof mildew hatching device for yellow catfish fertilized eggs, which comprises a temperature-controllable and volume-controllable atomization device, a hatching frame and a seedling collection box. The high-level water tank with electrified auxiliary heating and temperature control is located above the highest water level of the hatching frame and the seedling collection box, and is connected through the water inlet pipe (7). The timing booster pump (6) is installed in front of the water inlet pipe (7), and the fog is connected to the rear. chemical nozzle (8). The hatching frame is a two-layer rectangular parallelepiped stainless steel load-bearing bracket. Atomizing nozzles are installed on the upper part of each layer. The hatching mesh is suspended in the hatching frame. The bottom layer of each layer of the hatching frame is equipped with a water collecting plate. And the top covers one deck plastic film to further keep moisture, and the seedling collection box is a cuboid open box, and sewage pipe, drainpipe and collection seedling outlet are housed, and the membrane net sheet that goes out is put on, water inlet pipe (14) and booster pump ( 6) The water outlet is connected, and the outlet for collecting seedlings is located under one side of the seedling collecting box.

Description

A water-saving and mildew-proof hatching device suitable for fertilized eggs of yellow catfish

technical field

The utility model belongs to the technical field of aquaculture, in particular the utility model belongs to the improvement of a water-saving, waterproof and mildew-proof artificial hatching device suitable for fertilized eggs of yellow catfish.

Background technique

Yellow catfish is a famous and special freshwater aquatic product species with broad market prospects. The current natural resources are far from meeting market needs. Through exploration in recent years, artificial propagation has been successfully realized to obtain seedlings. Through research, the applicant found that the fertilized eggs of yellow catfish are viscous eggs with a thick egg membrane. When the fertilized eggs are attached to fish nests or meshes and placed in still water or micro-flowing water in the hatching pool, the water consumption is large, and Saprolegnia It leads to the death of the hatched embryos, and the mold spreads rapidly with water as the medium, which seriously affects the hatching efficiency. The traditional solution is to use malachite green to soak fertilized eggs to prevent and control saprolegniasis. In recent years, in order to strengthen food hygiene and safety, malachite green has been banned in the aquaculture industry, and the situation of low hatching rate caused by saprolegnia is more serious, which obviously restricts the development of yellow catkins. Large-scale production of fish fry.

Contents of the invention

The utility model needs to solve the problem of designing an artificial hatching device suitable for fertilized eggs of yellow catfish to solve the problem of water mold in fertilized eggs of yellow catfish and solve the needs of fertilized eggs for dissolved oxygen and suitable temperature during the hatching process. Save water for hatching and increase the emergence rate of fertilized eggs of yellow catfish.

The utility model is designed according to the hatching characteristics of the fertilized eggs of the yellow catfish, and it is realized in this way:

A water-saving and mildew-proof hatching device suitable for fertilized eggs of yellow catfish, which includes a temperature-controllable and volume-controllable atomizing device, a hatching frame (9) and a seedling collection box (15), and the atomizing device Comprising a high-level water tank (2), a bracket (3), a shut-off valve (5), a timing booster pump (6) and an atomizing nozzle (8) with an electrified auxiliary heating device (4), the high-level water tank (2) Water for hatching is provided through the water inlet pipe (1), and the high-level water tank (2) is located above the highest water level of the hatching frame (9) and the seedling collection box (15), and is communicated therebetween through the water inlet pipe (7), and the water inlet pipe ( 7) A timing booster pump (6) is installed between the high-level water tank (2), and the water outlet of the timing booster pump (6) is respectively connected to the water inlet pipe (7) for the atomizing nozzle (8) and the The water inlet pipe (14) of the seedling box (15), the electric auxiliary heating device (4) is installed in the described elevated water tank (2); , the upper part of each layer is equipped with the atomizing nozzle (8), the hatching mesh (10) is evenly suspended in the hatching frame (9), and the bottom of each layer of the hatching frame (9) is equipped with a water collecting plate (12) , a moisturizing sponge (11) is placed on the water collecting plate (12), and the periphery and the top of the hatching rack (9) are covered with a layer of plastic film to further keep moist, and the drain pipe (13) is installed on the hatching rack The edge of water collecting plate (12), described seedling collection box (15) is the cuboid open box that stainless steel material is made, is arranged with film outlet mesh (16), blowdown pipe (17), drainpipe (18) and collection seedling outlet (19), described inlet pipe (14) is communicated with the water outlet end of described timing booster pump (6), also can be connected to other hatching water sources in addition, described collection seedling outlet (19) is positioned at the one side below of seedling collecting box (15). The seedling collecting box (15) is mainly used for frying film and collecting fry.

The electric auxiliary heating device includes components for heating and temperature control, and the electric auxiliary heating device can be purchased commercially.

The timing booster pump (with flow control) and the atomizing nozzle involved in the utility model can also be purchased commercially.

The artificial hatching device and method for fertilized eggs of yellow catfish of the present invention solve these problems well, control the occurrence of water mold, create an environment suitable for the development of fertilized eggs of yellow catfish, save water, have a high emergence rate, and reduce unit cost. Significantly reduced, suitable for large-scale reproduction and production of yellow catfish.

Description of drawings

Fig. 1: is the structural representation of the utility model.

The numbers in the figure are explained as follows: 1-water inlet pipe; 2-high water tank; 3-high water tank support; 4-electric auxiliary heating device; 5 cut-off valve; Nozzle; 9-hatching frame; 10-hatching mesh; 11-sponge; 12-collecting plate; 13-drainage pipe; 14-inlet pipe; ; 18-drainage pipe; 19-collecting seedling outlet.

Fig. 2: is the schematic diagram of the hatching and membrane-out mesh structure designed by the utility model.

Detailed ways

Example 1

This embodiment is completed according to the design ideas proposed in the "Summary of the Invention" of this specification and accompanying drawings 1 and 2.

In the utility model, the elevated water tank and the support are made of stainless steel. The high-level water tank is not cylindrical, with a volume of 1m3; the bracket is welded with stainless steel. Its height is adjusted as required. Incubation frame (9) is welded by stainless steel material, and length, width and height are 200cm * 90cm * 180cm. The hatching frame is divided into two layers, each layer is 90cm high. Water inlet pipes (7) and atomizing nozzles (8) are installed above each layer of the support, and the bottom is paved with a water collecting plate (12) made of tin sheet material. The water collecting plate can be covered with water-absorbing sponges. ) flow out. Hatching net sheet (10) is made of thick iron wire frame and 60 mesh sieve tulle sheets (seeing figure 2), and size is 80cm * 60cm, and long axis two iron wires respectively protrude 10cm in order to put. The box body of the seedling collection box is made of stainless steel or tinplate material, and the size is 100-300cm×90cm×70cm. The electric auxiliary heating device (which includes heating and temperature control components), atomizing nozzle and timing booster pump (this pump has a flow control device) can be purchased commercially. The device is installed in a room without direct sunlight with good warm and moisturizing conditions.

The using method of the present utility model (taking the implementation of the water-saving and waterproof mildew-proof hatching method of yellow catfish fertilized eggs as an example) is as follows: (1) inject the water that meets the hatching requirements into the high-level water tank, and according to the actual situation, the electric auxiliary heating device is set appropriately Water temperature (23-28°C). (2) After the yellow catfish is artificially inseminated by the traditional dry method, it enters the water and quickly and evenly spreads on the hatching mesh. Each piece can distribute 5000-10000 fertilized eggs, and be careful not to form a pile of eggs. (3) Hang the hatching mesh evenly on the hatching rack. (4) Open the water valve, set the timing pressure pump parameters, adjust the distance between the atomizing nozzle and the hatching mesh, and keep the surface of the hatching mesh and fertilized eggs moist. In order to keep the mesh and fertilized eggs moist, a layer of transparent plastic film can be placed outside the hatching frame. (5) After hatching for a period of time, 20 hours after finding that melanin appeared in the eyes of the yellow catfish, transfer the hatching mesh to the seedling collection box, open the water inlet pipe of the seedling collection box to form micro-flow water, and the fish fry will sink into the bottom of the box after leaving the film, gradually After clustering, the yolk seedlings are transferred out for fry cultivation.

Because the utility model can control the temperature of the hatching water and keep the surface of the hatching mesh and fertilized eggs moist only through the atomization device, the occurrence of saprolegnia is avoided, the transmission route of saprolegnia is cut off, and it can be used without the use of prohibited drugs such as malachite green. It can improve the hatching rate of yellow catfish, ensure that the fry are not contaminated by drugs, provide healthy and safe fry, and greatly save the water consumption for hatching.

Claims (2)

1, a kind of hatching apparatus that is applicable to the anti-water mold of water saving of yellow cartfish fertilized egg is characterized in that, it comprises an atomising device, hatching frame (9) and collection seedling case (15); Described atomising device comprises elevated tank (2), support (3), stop valve (5), timing force (forcing) pump (6) and the atomizer (8) of charged auxiliary heating apparatus (4); Described elevated tank (2) is positioned at the top of described hatching frame (9) and collection seedling case (15) peak level, be communicated with by water inlet pipe (7) therebetween, regularly force (forcing) pump (6) is housed between water inlet pipe (7) and the elevated tank (2), and regularly the water side of force (forcing) pump (6) is communicated with the water inlet pipe (7) of atomizer (8) and the water inlet pipe (14) of collection seedling case (15) respectively; Described hatching frame (9) is two layers of cuboid support, every layer of top of support is equipped with described atomizer (8), evenly be hung with hatching net sheet (10) in the hatching frame (9), its bottom of every layer is equipped with water collection sheet (12), be placed with the sponge of preserving moisture (11) on the water collection sheet (12), it is moistening with further maintenance that the periphery of hatching frame (9) and top are coated with layer of plastic film, described drainpipe (13) is installed in the edge of water collection sheet (12) on the described hatching frame, described collection seedling case (15) is the cuboid open top container, be furnished with membrane net sheet (16) on it, blow-off pipe (17), drainpipe (18) and collection seedling outlet (19), described water inlet pipe (14) is communicated with the water side of described timing force (forcing) pump (6), and described collection seedling outlet (19) is positioned at a side-lower of collection seedling case (15).

2, a kind of hatching apparatus that is applicable to the anti-water mold of water saving of yellow cartfish fertilized egg according to claim 1 is characterized in that the temperature and the flow of described atomising device are adjustable.