CN210900935U

CN210900935U - Large-scale breeding system for coregonus ussuriensis fries

Info

Publication number: CN210900935U
Application number: CN201921354837.0U
Authority: CN
Inventors: 徐革锋; 蒋博轩; 刘矢; 黄天晴; 谷伟; 王炳谦; 蒋树义
Original assignee: Heilongjiang River Fisheries Research Institute of Chinese Academy of Fishery Sciences
Current assignee: Heilongjiang River Fisheries Research Institute of Chinese Academy of Fishery Sciences
Priority date: 2019-08-20
Filing date: 2019-08-20
Publication date: 2020-07-03
Anticipated expiration: 2029-08-20

Abstract

A scale breeding system and a breeding method for coregonus ussuriensis fries. Generally, the survival rate of the natural fishes is less than 10%. The utility model discloses the constitution includes: the large-scale breeding system for the coreopsis tinctoria whitesalmon fries is composed of a group of breeding and culturing systems arranged in parallel, the breeding and culturing systems comprise floating ball type biological filters, an oxygen-increasing aeration separator, a fry breeding device and a fry culturing device, the fry breeding device comprises a shell, a vertically arranged rotating shaft is arranged in the shell, a water distribution disc is arranged at the lower end in the shell, four groups of rotating frames are fixed on the circumference of the rotating shaft, each group of rotating frames is composed of a group of fixing plates arranged from top to bottom, and an egg carrying plate is arranged between every two adjacent fixing plates of the rotating frames. The utility model is used for the scale of the whitefish seed of the ussuriensis breeds.

Description

Large-scale breeding system for coregonus ussuriensis fries

The technical field is as follows:

the utility model relates to a whitefish seed scale breeding system in dark su ricepaperplant.

Background art:

the Wusuli whitefish belongs to migratory fish, and comes and goes between the sea and rivers, and may come and go many times every year. However, the spawning period of 11 months per year basically stays in the deep of the great river, especially in the period of just closing ice on the river surface, the spawn is propagated under thin ice, and the parent fish spawns the spawn on waterweeds or other attachments due to the viscosity of the spawn. The hatching characteristics of fertilized eggs are attachment requiring swing, little water, low temperature and high dissolved oxygen. The water temperature under ice is generally 2-4 ℃, the water flow rate under ice is reduced due to ice sealing, but the dissolved oxygen content under low temperature is higher. Generally, the survival rate of the natural fishes is less than 10%.

The utility model has the following contents:

the utility model aims at providing a whitefish seed scale breeding system of whitefish seed to breeding of whitefish seed in the ussuriensis.

The above purpose is realized by the following technical scheme:

a scale breeding system for the black sumatriptan salmon seeds is composed of a group of breeding and culturing systems which are arranged in parallel, wherein the breeding and culturing systems comprise floating ball type biological filters, oxygen-increasing aeration separators, seedling culturing breeders and seedling culturing cultivators;

the device for breeding seedlings comprises a shell, a vertically-arranged rotating shaft is arranged in the shell, a water distribution disc is arranged at the lower end of the inner portion of the shell, four groups of rotating frames are fixed on the circumference of the rotating shaft, each group of rotating frames is composed of a group of fixing plates arranged from top to bottom, and egg carrying plates are arranged between every two adjacent fixing plates of the rotating frames.

According to the scale breeding system for the coreopsis tinctoria fries, the egg carrying plate comprises an outer frame and a grid plate fixed in the outer frame.

In the scale breeding system for the coregonus ussuriensis fries, the aperture of the grid plate is 1mm

1mm square hole.

According to the scale breeding system for the coreopsis tinctoria fries, a large gear is fixed on the upper portion of a rotating shaft and meshed with a small gear of a speed regulating motor, and the speed regulating motor is fixed on an upper cover on the upper portion of a shell.

According to the scale breeding system for the coreopsis tinctoria fries, the aperture of the water distribution hole in the water distribution disc is 8 mm.

According to the scale breeding system for the coreopsis tinctoria fries, an outer collar is fixed on the upper portion of the outer side of the shell, a group of water outlets are uniformly distributed on the circumference of the upper portion of the shell, and a water outlet is formed in the outer collar.

According to the scale breeding system for the coreopsis tinctoria fries, the lower portion of the shell is provided with a water inlet.

Has the advantages that:

1. the utility model discloses a swivel mount is the pivoted, and the whole adhesion of embryonated egg is on carrying the ovum board, and temperature and dissolved oxygen are controlled the control system and are regulated and control, and the temperature is invariable at 2-4 ℃, and dissolved oxygen control is more than 8 mg/liter, and there is the rivers to flow upwards incubator bottom, and the convection current above the thermocline in the simulation river, what the swivel mount simulation was the swing of nature fish egg attachment to avoid filth and the mutual adhesion of dead egg to breed the fungus, improved the speed of hatching simultaneously.

The utility model can improve the propagation achievement rate to 80 percent, and the seedling propagation problem is well solved.

The utility model discloses temperature and dissolved oxygen are controlled the control system and are regulated and control, and the temperature is invariable at 2-4 ℃, and dissolved oxygen control is more than 8 mg/liter, and the temperature is lower to the roe has sufficient oxygen content, can prevent that the zygote oxygen deficiency is dead.

Description of the drawings:

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

FIG. 2 is a schematic structural diagram of a seedling raising and breeding device;

FIG. 3 is a schematic structural view of an egg-carrying plate;

in the figure: 1. a floating ball biological filter; 2. an oxygen increasing aeration separator; 3. a seedling breeding device; 4. a seedling culture incubator; 5. a water inlet; 6. a water diversion disc; 7. a stepped groove; 8. a housing; 9. an outer collar; 10. an upper cover; 11. a speed-regulating motor; 12. a pinion gear; 13. a bull gear; 14. a rotating shaft; 15. a water outlet; 16. a water outlet; 17. a rotating frame; 18. a fixing plate; 19. water distribution holes; 20. an egg carrying plate; 21. an outer frame; 22. and (4) a grid plate.

The specific implementation mode is as follows:

example 1:

a scale breeding system for the black sumatriptan salmon seeds is composed of a group of breeding and culturing systems which are arranged in parallel, wherein the breeding and culturing systems comprise a floating ball type biological filter 1, an oxygen-increasing aeration separator 2, a seedling culturing breeding device 3 and a seedling culturing device 4;

the device for breeding seedlings comprises a shell 8, a vertically-arranged rotating shaft 14 is arranged in the shell, a water distribution disc 6 is arranged at the lower end of the inner portion of the shell, four groups of rotating frames 17 are fixed on the circumference of the rotating shaft, each group of rotating frames is composed of a group of fixing plates 18 arranged from top to bottom, and egg carrying plates 20 are arranged between every two adjacent fixing plates of the rotating frames.

Example 2:

according to the scale breeding system for the coreopsis tinctoria fries in the embodiment 1, the egg carrying plate comprises an outer frame 21 and a grid plate 22 fixed in the outer frame.

Example 3:

according to the scale breeding system for the fry of the coreopsis ussuriensis in the embodiment 1 or 2, the aperture of the grid plate is 1mm

1mm square hole.

Example 4:

according to the scale breeding system for the fries of the coregonus ussuriensis in the

embodiment

1, 2 or 3, the upper part of the rotating shaft is fixed with the large gear 13, the large gear is meshed with the small gear 12 of the speed regulating motor 11, and the speed regulating motor is fixed on the upper cover 10 on the upper part of the shell.

Example 5:

according to the scale breeding system for the brachymystax ussuriensis fries in the

embodiment

1, 2, 3 or 4, the aperture of the water diversion hole on the water diversion disc is 8 mm.

Example 6:

according to the scale breeding system for the coreopsis tinctoria fries in the

embodiment

1, 2, 3, 4 or 5, an outer collar 9 is fixed on the upper portion of the outer side of the shell, a group of water outlets 15 are uniformly distributed on the circumference of the upper portion of the shell, and a water outlet 16 is formed in the outer collar.

Example 7:

the system for the large-scale breeding of the coreopsis tinctoria fries in the

embodiment

1, 2, 3, 4, 5 or 6, wherein the lower part of the shell is provided with a water inlet 5.

Example 8:

a breeding method of a scale breeding system of the black frizzled fries comprises the following steps: harmful substances such as excrement, ammonia nitrogen and the like generated in the breeding process of the fish eggs of the seedling culture breeding device and the culture process of the seedling culture device flow into the floating ball type biofilter, and after the floating ball type biofilter is separated and degraded, the index of the circulating water body reaches the requirements of fish egg hatching and seedling growth, and the temperature of the circulating water body is constant at 2-4 ℃;

the circulating water after separation and explanation is subjected to oxygen increasing aeration of an oxygen increasing aeration separator to remove harmful gas generated in the biological filtration process, so that the oxygen content of oxygen in the water body reaches more than 8 mg/L;

the water after oxygenation aeration enters into the casing after the diversion of water diversion disc through the water inlet of breeding the ware lower part of growing seedlings, and the swivel mount is rotatory with the rotatory speed of the speed of 30 s/circle, and the water that gets into the casing forms the convection current with the roe that is stained with on carrying the ovum board, and the roe breeds the back and discharges through the outlet along with rivers, flows into to grow seedlings and cultivates in the ware.

And (3) system comparison test:

(1) the system does not carry out temperature control treatment;

if the system does not perform temperature control treatment, even in an indoor hatching workshop in winter of 11-12 months, the water temperature is 8 ℃ and is far higher than the natural hatching temperature, so that large batches of fries are deformed and dead, the deformation rate is as high as 70%, and the survival rate is only about 20%.

(2) The system does not supply pure oxygen water;

if the system does not supply pure oxygen water, only ordinary underground still water is provided for incubation, the water temperature is high, the dissolved oxygen is low, the low dissolved oxygen can cause oxygen-poor death of seriously stacked fertilized eggs, and the death rate is generally up to 40 percent

(3) The system does not carry out bottom micro-water flow convection;

this system is if there is not the ascending little flowing water design in bottom, and first the water in hatching cabin is still water, has the oxygen deficiency risk, and second the fry that hatch out can't flow in the culture tank of next door, because the incubation period is long, the fry rupture of membranes time lasts about 10 days, and the fry that early come out can be stranded in hatching cabin, is unfavorable for the very first time to carry out the opening domestication. And the hatching mortality rate is up to 30 percent.

(4) If the system carries out the rotation treatment of the hatching rack;

this system if do not carry out the swing that bionical attitude simulation embryonated egg adheres to, will be unfavorable for rivers to lead to bacterial growing through all adhesion roe clearances together, also do not favorable to regularly disinfecting moreover and liquid medicine to dip in the roe. Through the swing, the fish eggs adhered together can transversely shake, so that water flow and medicines can conveniently pass through, and the hatching rate is improved. In the absence of a swinging hatching chamber, the mortality rate would reach 30%.

Claims

1. A large-scale breeding system for the fry of the coreopsis ussuriensis is characterized in that: the large-scale breeding system for the coreopsis tinctoria whitesalmon seeds consists of a group of breeding and culturing systems which are arranged in parallel, wherein the breeding and culturing systems comprise a floating ball type biological filter, an oxygen aeration separator, a seedling breeding device and a seedling culturing device;

2. The large-scale breeding system for the coregonus ussuriensis seeds as claimed in claim 1, wherein: the egg carrying plate comprises an outer frame and a grid plate fixed in the outer frame.

3. The large-scale breeding system for coreopsis tinctoria fries as claimed in claim 2, which is characterized in that: the aperture of the grid plate is 1mm

1mm square hole.

4. The large-scale breeding system for the coregonus ussuriensis seeds as claimed in claim 1, wherein: a large gear is fixed on the upper part of the rotating shaft and meshed with a small gear of a speed regulating motor, and the speed regulating motor is fixed on an upper cover on the upper part of the shell.

5. The large-scale breeding system for the coregonus ussuriensis seeds as claimed in claim 1, wherein: the aperture of the water distribution hole on the water distribution disc is 8 mm.

6. The large-scale breeding system for the coregonus ussuriensis seeds as claimed in claim 1, wherein: an outer collar is fixed on the upper part of the outer side of the shell, a group of water outlets are uniformly distributed on the circumference of the upper part of the shell, and a water outlet is formed in the outer collar.

7. The large-scale breeding system for coreopsis tinctoria fries as claimed in claim 1 or 6, which is characterized in that: the lower part of the shell is provided with a water inlet.