CN110432191A - A kind of Ecology loach breeding device and a kind of breeding method of loach - Google Patents

Abstract

The invention provides an ecologically imitative loach breeding device and a loach breeding method. The imitative ecological loach breeding device includes a breeding tube, a hatching seedling raising tube, a flow supply tube and a seedling collecting tube. The flow tube rests on the edge of the upper opening of the breeding tube, one end of the split tube is connected to the upper supply tube, the other end of the split tube extends into the breeding tube along the inner wall of the breeding tube, and a plurality of split holes are arranged on the outer wall of the split tube. The loach breeding method comprises feeding male loach parents and female loach parents in proportion, cultivating loach seedlings in a breeding device, and collecting loach seedlings from a seedling collecting pipe. By adopting the technical scheme of the present invention, the oviposition and hatching of loach are concentrated in the same special device, which greatly reduces the production cost of the breeding device, shortens the breeding cycle, reduces the labor intensity of artificial breeding, and reduces the parental mortality rate. The survival rate of loach seedlings is improved, and the breeding efficiency is improved.

Description

A kind of bionic loach breeding device and a kind of loach breeding method

technical field

The invention belongs to the technical field of agricultural breeding, and in particular relates to an ecological imitation loach breeding device and a loach breeding method.

Background technique

At present, devices for imitating ecological breeding of stream fish have been born. For example, CN104872006B-a method for artificial reproduction of light-lipped fish and CN 109349171A-a method for imitating ecological reproduction of catfish. However, they are all devices that separate egg laying and hatching, and there are limitations in manpower input, simplicity of the device, and reproductive effect. Many breeding and hatching devices for loach are also separated, and many breeding patents for loach are based on artificial reproduction. Because loach is a small fish, it has difficulties in administering hormones, complicated egg squeezing operations, high cost, and low efficiency of induced labor. , Broodstock mortality and other issues. At present, there are no patents on the imitation ecological breeding of loach, and there is no patent on the integrated ecological imitation breeding device for loach. Therefore, we closely centered on the above technical problems and needs, and based on scientific research practice, we developed an integrated device for loach imitation ecological breeding, which provides technical convenience and feasibility for efficient research and production of loach breeding.

Contents of the invention

In order to solve the above-mentioned technical problems, the invention provides an ecologically imitative loach breeding device and a loach breeding method.

The present invention is achieved through the following technical solutions.

The invention provides an ecological imitation loach breeding device, which comprises a hollow breeding cylinder at the upper and lower ends, an upper supply pipe and a diverter pipe, the lower end of the breeding cylinder is connected with a hatching tube, and the lower end of the hatching tube is connected with a seedling tube , the upper flow pipe rests on the edge of the upper open end of the breeding tube, one end of the shunt pipe communicates with the upper flow pipe, and the other end of the shunt pipe extends along the inner wall of the breeding tube Inside the breeding tube, a plurality of distribution holes are arranged on the outer wall of the distribution tube.

The hatching tube is in the shape of an inverted cone.

An overflow groove is also arranged on the edge of the opening end of the upper end of the breeding tube.

A valve is installed on the seedling collecting pipe, and a lower supply pipe is connected between the valve and the lower end of the hatching seedling raising tube.

The length of the shunt pipe is two-thirds of the height of the breeding tube.

The distance between the distribution hole and the upper flow pipe is 5-8cm.

The eco-mimetic loach breeding device also includes an isolation screen frame that can be used alone and fit inside the breeding cylinder.

In addition, the present invention also provides a kind of loach breeding method, comprises the following steps:

Step 1: put male loach parents and female loach parents: use the aforementioned ecological imitation loach breeding device, first put the isolation sieve frame into the breeding tube, and then put the male and female parents into the breeding tube in a ratio of 1:2 within the barrel;

Step 2: Cultivate loach seedlings: After the male loach parent and the female loach parent mate to produce fertilized eggs, take out the isolation sieve frame, and pull out all the female loach parents and the female loach through the isolation sieve frame, so that the The fertilized eggs are hatched into loach seedlings in the breeding tube and hatching seedling tube, and then an appropriate amount of suspended culture solution is put into the breeding tube to promote the growth of loach seedlings. Continuous water supply in the breeding tube, drainage through the overflow tank, so that the water in the breeding tube and the hatching tube keeps flowing, and a microbubble swirl is formed in the breeding tube and the hatching tube;

Step 3: Collect loach seedlings: when the body length of loach seedlings is greater than 1 cm, open the valve and collect loach seedlings through the seedling collecting tube.

The loach breeding method also includes controlling the water flow rate in the breeding tube to 2-10 cm/s during the process of cultivating loach seedlings in step 2.

The loach breeding method also includes that in the process of cultivating loach seedlings described in step 2, when the user needs it, suspend the continuous water supply through the lower supply pipe to the inside of the breeding tube, open the valve, and pass through the seedling collection pipe. After the loach seedlings are discharged to discharge residual bait and feces, the valve is closed again, and water is continuously supplied to the inside of the breeding tube by the lower supply flow pipe.

The beneficial effects of the present invention are: adopting the technical scheme of the present invention, by concentrating the spawning and hatching of loach in the same special device, the manufacturing cost of the breeding device is greatly reduced, the breeding cycle is shortened, and the time spent in breeding of loach is reduced. The process of transferring the loach parent during the process reduces the labor intensity of artificial breeding and improves the breeding efficiency. In addition, during the loach breeding process, water is supplied to the breeding device through the upper flow pipe and the lower flow pipe, so that the loach parents can always be in oxygen-rich water for spawning and hatching, which improves the efficiency of induced labor and reduces the parental mortality rate. The survival rate of loach nursery is improved, and the breeding efficiency of loach is improved.

Description of drawings

Fig. 1 is the exploded schematic view of the structure of the ecological imitation loach breeding device of the present invention.

In the figure: 1-breeding tube, 2-upper supply tube, 3-splitting tube, 4-hatching tube, 5-collecting tube, 6-down supply tube, 7-valve, 8-isolation screen frame, 11 - overflow tank, 31 - diversion hole.

Detailed ways

The technical solution of the present invention is further described below, but the scope of protection is not limited to the description.

As shown in Figure 1, the present invention provides a kind of imitation ecological loach breeding device, comprises the breeding tube 1 of upper and lower two ends hollow, upper flow pipe 2 and shunt tube 3, and the lower end of breeding tube 1 is connected with hatching nursery tube 4, hatches and grows seedlings The lower end of the tube 4 is connected with a seedling collecting tube 5, the upper supply tube 2 rests on the edge of the upper opening end of the breeding tube 1, one end of the diversion tube 3 communicates with the upper supply tube 2, and the other end of the diversion tube 3 runs along the breeding tube 1 The inner wall extends into the breeding tube 1 , and the outer wall of the shunt pipe 3 is provided with a plurality of shunt holes 31 . Adopt the technical scheme of the present invention, when hatching seedling raising tube 4 is inverted cone shape, make loach parent can't escape from seedling collecting tube, be in stable breeding environment all the time.

Further, the hatching tube 4 is in the shape of an inverted cone. It is preferred that the 4 conical angles of the hatching tube are 37°-60°. The outer diameter of the breeding tube 1 is 60-150cm. Breeding cylinder 1 height is 50-100cm. The height of hatching tube 4 is 60-180cm.

In addition, an overflow groove 11 is also provided on the edge of the upper opening of the breeding tube 1 . The depth of overflow tank 11 is 1.5-3cm. The length of the overflow tank 11 is 2/5 of the circumference of the open end of the upper end of the breeding tube 1 . A valve 7 is also installed on the seedling collecting pipe 5, and a lower supply flow pipe 6 is also connected between the valve 7 and the lower end of the hatching seedling raising tube 4. The outer diameter of the lower supply pipe 6 is 2-5cm. The outer diameter of the upper supply pipe 2 is 2-5cm. The length of the shunt pipe 3 is two-thirds of the height of the breeding tube 1. The distance between the distribution hole 31 and the upper flow pipe 2 is 5-8 cm. The number of shunt pipes 3 is two. The sum of the areas of the plurality of distribution holes 31 is twice the cross-sectional area of the upper flow pipe 2 . Adopting the technical solution of the present invention, the upper supply pipe 2 and the lower supply pipe 6 supply water to the breeding tube and the hatching tube respectively, and the water is rich in oxygen, so that the water flow in the breeding tube and the hatching tube forms a microbubble swirl On the one hand, it can help to promote the spawning rate of the male and female loach parents, improve the spawning rate of the loach parents, and improve the breeding efficiency; survival rate.

Further, the biomimetic loach breeding device also includes an isolation screen frame 8 that can be used alone and fit inside the breeding tube 1 . Several sieve holes are densely covered on the isolation screen frame 8, and the sieve hole diameter is 4-8mm. The height of isolation screen frame 8 is 1/3 of the height of breeding cylinder 1. The lower supply pipe 6 is transparent.

By adopting the technical scheme of the present invention, by concentrating the spawning and hatching of the loach in the same special device, the manufacturing cost of the breeding device is greatly reduced, the breeding cycle is shortened, and the process of loach parents in the breeding process is reduced. The transfer process reduces the labor intensity of artificial breeding and improves the breeding efficiency. In addition, during the loach breeding process, water is supplied to the breeding device through the upper flow pipe and the lower flow pipe, so that the loach parents can always be in oxygen-rich water for spawning and hatching, which improves the efficiency of induced labor and reduces the parental mortality rate. The survival rate of loach nursery is improved, and the breeding efficiency of loach is improved.

In addition, the present invention also provides a kind of loach breeding method, comprises the following steps:

Step 1: put in the male loach parent and the female loach parent: use the imitation ecology loach breeding device as any one of claims 1 to 7, first put the isolation screen frame 8 into the breeding tube 1, then put some male loach parents and some The female loach parents are put into the breeding tube 1; the ratio of the number of female loach parents to the number of male loach parents is preferably 1:2.

Step 2: Cultivate loach seedlings: After the male loach parent and the female loach parent mate to produce fertilized eggs, take out the isolation sieve frame 8, and pull out all the female loach parents and the female loach by the isolation sieve frame 8, so that the fertilized eggs can be bred Hatch loach seedlings within tube 1 and hatch seedling tube 4, and then put an appropriate amount of suspension culture solution into breeding tube 1 to promote the growth of loach seedlings. Water supply is drained through the overflow tank 11, so that the water in the breeding tube 1 and the hatching tube 4 keeps flowing, and the microbubble swirl is formed in the breeding tube 1 and the hatching tube 4;

Further, the loach breeding method also includes controlling the water flow velocity in the breeding tube 1 to be 2-10 cm/s during the process of cultivating loach seedlings in step 2. The suspension culture solution in step 2 is one or more of egg yolk suspension, open feed powder suspension or biological culture solution with plankton attached therein. The loach breeding method also includes in the process of cultivating loach seedlings in step 2, when the user needs, suspend the continuous water supply through the lower supply pipe 6 to the breeding tube 1, open the valve 7, and discharge the loach seedlings through the seedling collection pipe 5. After residual bait, excrement, close valve 7 again, continue to supply water in breeding tube 1 by lower supply flow pipe 6. The loach breeding method also includes discharging the loach seedlings through the seedling collecting tube 5 to discharge residual bait and feces, and irradiating the transparent seedling collecting tube 5 with infrared light to drive the loach seedlings into the breeding tube 1 or the hatching seedling tube 4 . After the fertilized eggs are hatched into loach seedlings in step 2, artificial fish nests can be suspended in the breeding tube 1 for the larvae to inhabit, and after 3 days, the nutrient solution will be dropped into the breeding tube 1. The interval between cultivating loach seedlings in step 2 and collecting loach seedlings in step 3 is 6-8 days.

Step 3: Collect loach seedlings: when the body length of loach seedlings is greater than 1 cm, open the valve 7, and collect loach seedlings through the seedling collecting pipe 5.

By adopting the technical scheme of the present invention, by concentrating the spawning and hatching of the loach in the same special device, the manufacturing cost of the breeding device is greatly reduced, the breeding cycle is shortened, and the process of loach parents in the breeding process is reduced. The transfer process reduces the labor intensity of artificial breeding and improves the breeding efficiency. In addition, during the loach breeding process, water is supplied to the breeding device through the upper flow pipe and the lower flow pipe, so that the loach parents can always be in oxygen-rich water for spawning and hatching, which improves the efficiency of induced labor and reduces the parental mortality rate. The survival rate of loach nursery is improved, and the breeding efficiency of loach is improved.

Claims (10)

1. A kind of imitation ecology loach breeding device is characterized in that: comprise the breeding tube (1) of upper and lower ends hollow, hatch seedling raising tube (4), upper supply pipe (2), shunt pipe (3) and seedling collecting tube (5), the lower end of the breeding tube (1) is connected with a hatching tube (4), the lower end of the hatching tube (4) is connected with a seedling tube (5), and the upper supply tube (2) rests on On the edge of the opening end of the upper end of the breeding tube (1), one end of the shunt pipe (3) communicates with the upper supply pipe (2), and the other end of the shunt pipe (3) runs along the (1) The inner wall extends into the breeding tube (1), and the outer wall of the shunt pipe (3) is provided with a plurality of shunt holes (31). 2. The bionic loach breeding device as claimed in claim 1, characterized in that: the hatching tube (4) is in the shape of an inverted cone. 3. The biomimetic loach breeding device according to claim 1, characterized in that: an overflow tank (11) is also arranged on the edge of the upper opening of the breeding cylinder (1). 4. the imitation ecology loach breeding device as claimed in claim 1, is characterized in that: valve (7) is also installed on the described seedling collecting pipe (5), described valve (7) and described hatching seedling raising tube ( 4) A lower supply flow pipe (6) is also connected between the lower ends. 5. The bionic loach breeding device according to claim 1, characterized in that: the length of the shunt pipe (3) is two-thirds of the height of the breeding cylinder (1). 6. The biomimetic loach breeding device according to claim 1, characterized in that: the distance between the distribution hole (31) and the upper supply pipe (2) is not less than 5 cm. 7. The bionic loach breeding device as claimed in claim 1, characterized in that: the bionic loach breeding device also includes an isolation screen frame (8) that is used alone and can fit within the breeding tube (1) . 8. A loach breeding method is characterized in that: comprise the following steps: Step 1: put in the male loach parent and the female loach parent: use the imitation ecology loach breeding device as described in any one of claims 1 to 7, first put the isolation screen frame (8) into the breeding tube (1) Within, arrange the upper supply pipe (2) and the shunt pipe (3), then put the male and female loach parents into the breeding tube (1) in a ratio of 1:2; Step 2: Cultivate loach seedlings: after the male loach parent and the female loach parent mate to produce fertilized eggs, take out the isolation sieve frame (8), and pass all the female loach parents and the female loach by the isolation sieve frame (8) Pull out, make described fertilized eggs hatch into loach seedlings within described breeding tube (1) and hatch seedling raising tube (4), and then put appropriate amount of suspended nutrient solution in described breeding tube (1) again, impel loach seedlings Growth, in the above process, continuously supply water to the inside of the breeding tube (1) through the lower supply pipe (6) at the same time, and drain water through the overflow tank (11), so that the breeding tube (1) and the hatching tube ( 4) the water inside keeps flowing, and forms the microbubble swirl flow inside the described breeding tube (1) and hatching seedling tube (4); Step 3: Collect loach seedlings: when the body length of loach seedlings is greater than 1 cm, open the valve (7), and collect loach seedlings through the seedling collecting pipe (5). 9. loach breeding method as claimed in claim 1, is characterized in that: described loach breeding method also comprises in the process of cultivating loach seedling described in step 2, controls the water flow velocity in described breeding tube (1) 2-10cm/s. 10. loach breeding method as claimed in claim 1, is characterized in that: described loach breeding method also comprises in the process of cultivating loach seedling described in step 2, when user needs, suspends by lower supply pipe ( 6) Continuously supply water to the inside of the breeding tube (1), open the valve (7), discharge the loach seedlings through the seedling collecting pipe (5) and discharge the residual bait and feces, then close the valve (7), pass the The flow pipe (6) continues to supply water into the breeding tube (1).