阅读说明：本技术 一种规模化黄鳝受精卵人工孵化设备及方法 (large-scale artificial incubation equipment and method for rice field eel fertilized eggs ) 是由 李忠 于 2019-09-04 设计创作，主要内容包括：本发明涉及一种规模化黄鳝受精卵人工孵化设备及方法,本发明的设备包括孵化架,所述孵化架层数为多层,每层所述孵化架上设置有若干个孵化盒,每个孵化盒内均设置有一个孵化筐,所述孵化筐用于放置黄鳝受精卵,每层所述孵化架上均铺设有增氧管道、排水管道和进水管道,所述进水管道的输入端连接蓄水池,所述蓄水池内设置有冷暖机,冷暖机用于将蓄水池内的水温调节到预设范围内,进水管道用于通过出水端将蓄水池的水输送到孵化盒内,排水管道用于将孵化盒内的水排出,增氧管道用于向孵化盒内输送氧气。本发明设备制作成本低廉、操作简单、适合规模化黄鳝受精卵的人工孵化,层架式的孵化架上可放置多个孵化盒,该设备占地面积小,且面积利用率高。(The invention relates to large-scale artificial incubation equipment and a method for fertilized eggs of finless eels, and the equipment comprises an incubation frame, wherein the number of layers of the incubation frame is multiple, each layer of the incubation frame is provided with a plurality of incubation boxes, each incubation box is internally provided with an incubation basket, the incubation basket is used for placing the fertilized eggs of the finless eels, each layer of the incubation frame is paved with an oxygen increasing pipeline, a drainage pipeline and a water inlet pipeline, the input end of the water inlet pipeline is connected with a reservoir, a cooling and heating machine is arranged in the reservoir and used for adjusting the water temperature in the reservoir to be within a preset range, the water inlet pipeline is used for conveying the water in the reservoir into the incubation boxes through a water outlet end, the drainage pipeline is used for discharging the water in the incubation boxes, and the oxygen increasing pipeline is used. The device has low manufacturing cost and simple operation, is suitable for large-scale artificial incubation of the fertilized eggs of the finless eels, can be used for placing a plurality of incubation boxes on the layered incubation frame, and has small floor area and high area utilization rate.)

1. The large-scale artificial incubation equipment for the finless eel oosperm is characterized by comprising an incubation frame (1), wherein the number of layers of the incubation frame (1) is multiple layers, each layer is provided with a plurality of incubation boxes (5) on the incubation frame (1), each incubation box (5) is internally provided with an incubation basket (6), each incubation basket (6) is used for placing the finless eel oosperm, each layer is paved with an oxygenation pipeline (2), a drainage pipeline (3) and a water inlet pipeline (4) on the incubation frame (1), the input end of the water inlet pipeline (4) is connected with a reservoir (7), a cooling and heating machine (8) is arranged in the reservoir (7), the cooling and heating machine (8) is used for adjusting the water temperature in the reservoir (7) to a preset range, the water inlet pipeline (4) is used for conveying the water of the reservoir (7) into the incubation boxes (5) through a water outlet end, the drainage pipeline (3) is used for discharging water in the hatching box (5), and the oxygen increasing pipeline (2) is used for conveying oxygen into the hatching box (5).

2. The scale artificial hatching equipment for the fertilized eggs of the finless eels according to claim 1, wherein a water inlet valve (41) is arranged at each water outlet end of the water inlet pipeline (4), and the water inlet valves (41) are used for controlling the opening and closing of a water source and the size of water flow.

3. the scale artificial hatching equipment for the fertilized eggs of the finless eels according to claim 1, wherein the drainage pipeline (3) is connected with the hatching box (5) through a water outlet pipe (31), a drainage valve (32) is arranged on the water outlet pipe (31), and the drainage valve (32) is used for controlling the opening or closing of the water outlet pipe (31); the oxygen increasing pipeline (2) is provided with an oxygen increasing head (21) in each hatching frame (6), and the oxygen increasing heads (21) are used for providing oxygen for water in the hatching frames (6).

4. The large-scale artificial hatching equipment for the fertilized eggs of the finless eels according to claim 1, wherein the hatching basket (6) is in a cuboid shape, the hatching basket (6) is made of a steel wire mesh, the mesh size of the hatching basket (6) is 20-40 meshes, the height of the hatching basket (6) is 8-10 cm, and the water inlet depth of the hatching basket (6) is 3-5 cm.

5. The scale artificial hatching equipment for the fertilized eggs of the finless eels according to claim 1, wherein hooks (51) are arranged at four corners of the hatching box (5), and the hooks (51) are used for hanging a hatching basket (6).

6. A large-scale artificial hatching method for fertilized eggs of finless eels is characterized by comprising the following steps:

S1, laying the fertilized eggs of the finless eels into an incubation basket (6), filling clear water into an incubation box (5), putting the incubation basket (6) into the incubation box (5), immersing the fertilized eggs of the finless eels into the clear water, and opening a water inlet valve (41) and a water discharge valve (32) on the incubation box (5);

S2, waiting for the fries of the finless eels to hatch, increasing oxygen into the water in the hatching box (5) during the hatching period, controlling the dissolved oxygen value of the water in the hatching basket (6) at 4.8-10 mg/L, keeping the temperature of the water in the hatching basket (6) at 24-27 ℃, and regularly sterilizing the water in the hatching basket (6);

And S3, after the finless eel fries emerge from the film for 48 hours, putting aquatic weeds into the hatching frame (6) for the fries to inhabit.

7. the method for artificially hatching fertilized eggs of finless eels in scale according to claim 6, wherein the step S2 further comprises a step of removing obviously non-fertilized eggs in the hatching basket (6), and the method for removing obviously non-fertilized eggs is to manually remove the obviously non-fertilized eggs by using a suction tube.

8. the large-scale artificial hatching method for the fertilized eggs of the finless eels according to claim 6, wherein in the steps S1-S3, the water inlet and outlet speed of the hatching box (5) is not lower than 1 drop/second when the fertilized eggs of the finless eels are hatched, and the water inlet and outlet speed of the hatching box (5) is not lower than 5 drops/second when the young finless eels are hatched.

9. The method for artificially hatching scaled fertilized eggs of finless eels according to claim 6, wherein the sterilization method in the step S2 comprises the steps of closing the water inlet valve (41) and the water outlet valve (32) on the hatching box (5) every 12 hours, adding miconazole nitrate into the hatching basket (6) to make the concentration of miconazole nitrate in the hatching basket (6) be 3-5 mg/L, sterilizing the hatching basket with a medicated bath, and opening the water inlet valve (41) and the water outlet valve (32) on the hatching box (5) after one hour of the medicated bath.

Technical Field

the invention relates to the field of aquaculture, in particular to large-scale artificial incubation equipment and method for rice field eel oosperms.

Background

monopteri albi is subtropical fish, also named as Monopteri albi, Luo fish, Monopteri albi, Channa Argus, Ginseng radix, Pangolin scales, Ginseng radix, etc., and belongs to order of Holotrichia, family of Holotrichia; only one species of the Hegili is available all over the world, namely finless eels which are widely distributed in Bengal, Cambodia, China, India, Indonesia, Japan, Laos people's republic of China, Malaysia, Burma, Thailand and Vietnam.

after the finless eel lays eggs in a natural state, the male eel can continuously spit foam in a nest, the foam is a moist, fine, sticky and air-containing blister, the finless eel eggs are settleable eggs, the particles are large, the diameter is 3-6 mm, the oxygen consumption is high in the process of incubating the finless eel eggs, the finless eel eggs are easy to grow saprolegnia to cause death of the finless eel eggs, and the finless eel fertilized eggs are easy to roll excessively to cause death of embryos in the process of incubating by utilizing conventional incubating equipment and methods, so that large-scale incubation and difficulty of the finless eel fertilized eggs are caused.

Disclosure of Invention

The invention aims to solve the technical problem and provides large-scale artificial hatching equipment and method for rice field eel oosperms.

the technical scheme for solving the technical problems is as follows:

The utility model provides a scale rice field eel embryonated egg artificial incubation equipment, includes the incubation frame, the incubation frame number of piles is the multilayer, every layer be provided with a plurality of incubation box on the incubation frame, every all be provided with an incubation basket in the incubation box, the incubation basket is used for placing rice field eel embryonated egg, every layer oxygenation pipeline, drainage pipe and inlet channel have all been laid on the incubation frame, the cistern is connected to the input of inlet channel, be provided with cold warm machine in the cistern, cold warm machine is used for adjusting the temperature in the cistern to predetermineeing the within range, inlet channel is used for carrying the water of cistern in the incubation box through the outlet end, drainage pipe is used for discharging the water in the incubation box, oxygenation pipe is used for carrying oxygen in to the incubation box.

And each water outlet end of the water inlet pipeline is provided with a water inlet valve, and the water inlet valves are used for controlling the opening and closing of a water source and the size of water flow.

The water outlet pipe is connected with the hatching box through a water outlet pipe, and a drain valve is arranged on the water outlet pipe and used for controlling the opening or closing of the water outlet pipe; the oxygen increasing pipeline is provided with an oxygen increasing head in each hatching frame, and the oxygen increasing heads are used for providing oxygen for water in the hatching frames.

The invention has the beneficial effects that: the device has low manufacturing cost and simple operation, is suitable for large-scale artificial incubation of the fertilized eggs of the finless eels, and a plurality of incubation boxes can be placed on the layered incubation frame; oxygen is provided for the water in the hatching basket through the oxygen increasing pipeline and the oxygen increasing head, so that the dissolved oxygen value of the water is kept in a range suitable for hatching, and the hatching efficiency is improved; water is continuously replaced for the hatching box through a drainage pipeline and a water inlet pipeline, so that good water quality is kept; the water temperature is regulated and controlled through the refrigerating and heating machine, the water temperature is regulated to a range suitable for hatching the fertilized eggs of the finless eel, and the hatching efficiency is improved.

Furthermore, the hatching basket is cuboid, the hatching basket is made of steel wire meshes, the mesh size of the hatching basket is 20-40 meshes, the height of the hatching basket is 8-10 cm, and the water inlet depth of the hatching basket is 3-5 cm.

The beneficial effect of adopting the further scheme is as follows: the mesh size of the hatching frame is 20-40 meshes, so that impurities accumulated in the hatching process can sink to the bottom of the hatching box through the hatching frame, and fertilized eggs of finless eels cannot pass through the hatching frame.

Furthermore, hooks are arranged at four corners of the hatching box and used for hanging a hatching basket.

the beneficial effect of adopting the further scheme is as follows: the hook fixes the hatching basket, and the position of the hatching basket is guaranteed to be stable and not to shake randomly.

A large-scale artificial hatching method for fertilized eggs of finless eels comprises the following steps:

S1, laying the fertilized eggs of the finless eels into an incubation basket, filling clear water into an incubation box, putting the incubation basket into the incubation box, immersing the fertilized eggs of the finless eels into the clear water, and opening a water inlet valve and a water discharge valve on the incubation box;

S2, waiting for the fries of the finless eels to hatch, increasing oxygen into water in a hatching box during hatching, controlling the dissolved oxygen value of the water in a hatching basket at 4.8-10 mg/L, keeping the temperature of the water in the hatching basket at 24-27 ℃, and regularly disinfecting the water in the hatching basket;

And S3, after the finless eel fries are filmed for 48 hours, putting aquatic weeds into an incubation frame for the fries to inhabit.

Further, the step S2 includes a step of removing the apparently non-fertilized eggs in the hatching basket by using a suction tube.

Further, in the step S1-S3, when the finless eel oosperm is hatched, the water inlet and outlet speed of the hatching box is not lower than 1 drop/second, and when the finless eel seedlings are hatched, the water inlet and outlet speed of the hatching box is not lower than 5 drops/second.

Further, the sterilization method in the step S2 is that the water inlet valve and the water discharge valve on the hatching box are closed every 12 hours, miconazole nitrate is added into the hatching basket so that the concentration of miconazole nitrate in the hatching basket is 3-5 mg/l, and the water inlet valve and the water discharge valve on the hatching box are opened after one hour of medicated bath sterilization.

Drawings

FIG. 1 is a schematic structural view of the present invention;

Fig. 2 is a schematic structural diagram of a hatching basket and a hatching box.

in the drawings, the components represented by the respective reference numerals are listed below:

1. An incubation rack; 2. an oxygenation pipeline; 21. an oxygen increasing head; 3. a water discharge pipeline; 31. a water outlet pipe; 32. a drain valve; 4. a water inlet pipe; 41. a water inlet valve; 5. hatching boxes; 51. hooking; 6. an incubation frame; 7. a reservoir; 8. and (5) cooling and heating.

Detailed Description

the principles and features of this invention are described below in conjunction with the following drawings, which are set forth by way of illustration only and are not intended to limit the scope of the invention.

as shown in figure 1, the large-scale artificial hatching equipment for the fertilized eggs of the finless eels comprises a hatching frame 1, the number of layers of the hatching frame 1 is multiple, a plurality of hatching boxes 5 are arranged on each layer of the hatching frame 1, a hatching basket 6 is arranged in each hatching box 5, the hatching basket 6 is used for placing fertilized eggs of finless eels, an oxygen increasing pipeline 2, a drainage pipeline 3 and a water inlet pipeline 4 are laid on each layer of the hatching frame 1, the input end of the water inlet pipe 4 is connected with a reservoir 7, a cooling and heating machine 8 is arranged in the reservoir 7, the heating and cooling machine 8 is used for adjusting the temperature of water in the water storage tank 7 to be within a preset range, the water inlet pipeline 4 is used for conveying the water in the water storage tank 7 into the hatching box 5 through the water outlet end, the drainage pipeline 3 is used for discharging water in the hatching box 5, and the oxygen increasing pipeline 2 is used for conveying oxygen into the hatching box 5.

A water inlet valve 41 is arranged at each water outlet end of the water inlet pipeline 4, and the water inlet valves 41 are used for controlling the opening and closing of a water source and the size of water flow.

The drainage pipeline 3 is connected with the hatching box 5 through a water outlet pipe 31, a drainage valve 32 is arranged on the water outlet pipe 31, and the drainage valve 32 is used for controlling the opening or closing of the water outlet pipe 31; the oxygen increasing pipe 2 is provided with an oxygen increasing head 21 in each hatching frame 6, and the oxygen increasing head 21 is used for providing oxygen for water in the hatching frame 6.

As shown in fig. 2, the hatching basket 6 is rectangular, the hatching basket 6 is made of a steel wire mesh, the mesh size of the hatching basket 6 is 20-40 meshes, the height of the hatching basket 6 is 8-10 cm, and the water penetration depth of the hatching basket 6 is 3-5 cm.

In one embodiment, hooks 51 are arranged at four corners of the hatching box 5, and the hooks 51 are used for hanging the hatching basket 6.

A large-scale artificial hatching method for fertilized eggs of finless eels comprises the following steps:

(1) Laying the fertilized eggs of the finless eels into an incubation basket 6, opening a water inlet pipeline 4 and a water discharge pipeline 3, opening a water inlet valve 41 and a water discharge valve 32, and controlling the water flow to be 1 drop/second, wherein the water used in the method is aerated tap water which meets the national standard;

(2) Opening the oxygen increasing pipeline 2, detecting the dissolved oxygen value of water in the hatching frame 6, adjusting the oxygen increasing head 21, and controlling the dissolved oxygen value to be 4.8-10 mg/L;

(3) Detecting the water temperature in the hatching basket 6, and adjusting the cooling and heating machine 8 to control the water temperature to be 24-27 ℃;

(4) during the incubation period of the fertilized eggs of the finless eels, closing the water inlet valve 41 and the water discharge valve 32 every 12 hours, then sprinkling miconazole nitrate into the incubation basket 6 to ensure that the concentration of the miconazole nitrate sprinkled in the incubation basket 6 is 3-5 mg/L, carrying out medicated bath for one hour, and then opening the water inlet valve 41 and the water discharge valve 32;

(5) Carrying out timely patrol, and manually removing obvious non-fertilized eggs by using a suction pipe;

(6) after the fertilized eggs of the finless eels are hatched and membrane is removed, the water inlet valve 41 is adjusted to ensure that the dripping speed is not lower than 5 drops/second;

(7) And after 48 hours of membrane emergence, putting the aquatic weeds into the hatching frame 6 for the seedlings to inhabit.

The hatching method not only prevents the outbreak of saprolegniasis, but also improves the hatching efficiency of the fertilized eggs of the finless eel and the survival rate of the young fries.

The device has low manufacturing cost and simple operation, is suitable for large-scale artificial incubation of the fertilized eggs of the finless eels, can be used for placing a plurality of incubation boxes on the layered incubation frame, and has small floor area and high area utilization rate.

The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.