CN211607877U - Device suitable for hatching of red swamp crayfish embryo in vitro - Google Patents

Abstract

The utility model discloses a device suitable for in vitro hatching of red crayfish embryos, comprising: a support base; an incubator, one end of which is closed and one end open, and the closed end is fixedly installed in the support base; a filter body and a second filter body, the first filter body, the second filter body and the side wall of the incubator enclose an incubation space for the hatching of red crayfish embryos; an inlet pump is used to transport aquaculture water for the incubator; and a water inlet pipe , set in the incubator, one end of which penetrates the first filter body and is connected to the inlet water pump through a connecting pipe, and the other end penetrates the second filter body; the incubator is made of transparent plexiglass, and there is a water outlet near the open end of the incubator. Located outside the incubation space. The device of the utility model has a simple structure and is easy to operate, and the growth and development status of the red crayfish embryos can be easily observed during the hatching process, and the hatching survival rate of the red crayfish embryos can be significantly improved.

Description

A device suitable for in vitro hatching of red crayfish embryos

technical field

The utility model relates to the technical field of aquaculture,

In particular, the utility model relates to a device suitable for in vitro hatching of red crayfish embryos.

Background technique

At present, the artificial reproduction of red crayfish mostly adopts the traditional method, that is, the female shrimp hatches with eggs, and the traditional hatching method

Not only does it require higher feeding and management costs for brooding shrimp, but also the eggs are easily dropped or damaged by collision during the brooding process, and the hatching synchronization is also low. At the same time, the survival rate of embryos is low and it is not easy to control.

In vitro embryo hatching is a low-cost and high-efficiency technology for cultivating seed, which can not only reduce the management cost of traditional hatching methods, but also improve the survival rate of shrimp embryos. However, at present, there are few studies on the in vitro hatching device suitable for red crayfish embryos. Chinese invention patent CN201711040737.6 discloses an in vitro hatching device for red crayfish, but the structure of the device is relatively complex, which is not conducive to practical application. It is popularized and applied in production, and it is not easy to observe the growth and development of embryos during embryonic development.

Utility model content

In order to overcome the above-mentioned deficiencies of the prior art, the purpose of the present invention is to provide a relatively simple and popularized device suitable for in vitro hatching of red crayfish embryos.

In order to solve the above-mentioned problems, the utility model adopts the following technical solutions:

A device suitable for in vitro hatching of red crayfish embryos, comprising:

support base;

an incubator, one end is closed and one end is open, the closed end is fixedly installed in the support base; the incubator is provided with a first filter body and a second filter body, the first filter body, the second filter body The filter body and the side wall of the incubator enclose a hatching space for the hatching of red crayfish embryos;

an inlet pump for delivering culture water to the incubator; and

a water inlet pipe, set in the incubator, one end of which penetrates the first filter body and is connected to the inlet water pump through a connecting pipe, and the other end penetrates the second filter body;

The incubator is made of transparent plexiglass, and a water outlet is arranged near the open end of the incubator, and the water outlet is arranged outside the incubation space.

Preferably, the first filter body and/or the second filter body are movably arranged in the incubator, and the volume of the incubation space can be adjusted.

Preferably, the first filter body and the second filter body are filter sponges, and the filter sponges have a thickness of 4-6 cm.

Preferably, the incubator is cylindrical.

Preferably, the closed end of the incubator is arc-shaped.

Compared with the prior art, the technical effect of the present utility model is embodied in:

The device of the utility model suitable for the in vitro hatching of the red crayfish embryos is simple in structure, easy to operate, easy to observe the growth and development status of the red crayfish embryos during the hatching process, and can significantly improve the hatching survival of the red crayfish embryos. Rate.

Description of drawings

1 is a schematic structural diagram of a device suitable for in vitro hatching of red crayfish embryos provided by an embodiment of the present utility model;

2 is a schematic structural diagram of an incubator of a device suitable for in vitro hatching of red crayfish embryos provided by an embodiment of the present utility model;

3 is another schematic structural diagram of an incubator of a device suitable for in vitro hatching of red crayfish embryos provided by an embodiment of the present invention.

In the figure, 1. the support base, 2. the incubator, 3. the first filter body, 4, the second filter body, 5, the water inlet pipe, 6, the water inlet pump, 7, the connecting pipe, 21, the water outlet.

Detailed ways

In order to make the purpose, technical solutions and advantages of the present utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention, and are not used to limit the present invention.

This embodiment provides a device suitable for in vitro hatching of red crayfish embryos. The structure is shown in Figures 1 and 2, including a support base 1, an incubator 2, a first filter body 3, a second filter body 4, Water inlet pipe 5 and inlet water pump 6. One end of the incubator 2 is closed, one end is open, and the closed end is fixedly installed in the support base 1; the incubator 2 is provided with a first filter body 3 and a second filter body 4, the first filter body 3, the second filter body 4 and the incubator 2 side walls enclose the hatching space for the hatching of red crayfish embryos; the water inlet pump 6 is used for conveying culture water for the incubator 2; the water inlet pipe 5 is arranged in the incubator 2, and its one end penetrates the first filter body 3 and passes through the connecting pipe 7 is connected to the water inlet pump 6, and the other end runs through the second filter body 4 as the water inlet of the incubator 2, so that the water inlet is on the lower side of the second filter body 4, and the second filter body 4 can effectively filter out the water body when entering the water. impurities, purify the water quality of aquaculture.

The incubator 2 is made of transparent plexiglass, which is convenient for observing the growth and development of the red crayfish embryos; a water outlet 21 is provided near the open end of the incubator 2, and the water outlet 21 is arranged outside the hatching space. The water outlet 21 is arranged on the outside of the first filter body 3, the second filter body 4 and the side wall of the incubator 2 to form the hatching space for the hatching of red crayfish embryos. At the same time, it can prevent the red crayfish embryos in the hatching space from being discharged with the water flow.

During the working process of the device of the utility model suitable for in vitro hatching of red crayfish embryos, aquaculture water is continuously transported into the incubator 2 through the inlet pump 6, so that the aquaculture water is in a circulating flow state, which is the red crayfish. The embryo provides sufficient dissolved oxygen, and at the same time, it can ensure that the red crayfish embryo is always in a suspended state during the culture period, which is more conducive to the growth and development of the red crayfish embryo.

Preferably, the first filter body 3 and/or the second filter body 4 are movably arranged in the incubator 2, so that by moving the position of the first filter body 3 or the second filter body 4 in the incubator 2, the enclosed incubator can be adjusted. The volume of the space can be appropriately adjusted according to the number of hatched embryos.

More preferably, the first filter body 3 and the second filter body 4 are filter sponges, and the thickness of the filter sponges is 4-6 cm. The filter sponge can effectively play the role of blocking and filtering, and its material is suitable for cutting into a corresponding profiling structure according to the shape of the inner wall of the incubator 2, and the production is simple and low in cost.

Preferably, the incubator 2 is in the shape of a cylinder, which is convenient to observe the growth and development status of the red crayfish embryos in the incubator 2 from various angles. More preferably, the closed end of the incubator 2 is in the shape of a circular arc, and as shown in FIG.

Application example:

First, take the egg-carrying shrimp (orange-red), gently peel off the eggs with a comb, sterilize them with 70% alcohol for 60s, and put them into the incubator 2 of the present utility model, until the seedlings can be dispersed and swim freely (after 12d) Survival rate of Stage2 juveniles (newly hatched juveniles become Stage2 juveniles after molting once). During the incubation period, dead eggs were regularly removed and 3000ppm formaldehyde was used to disinfect the eggs, and ozone disinfection was used to treat the hatching water regularly. The results are shown in the table below.

The device of the utility model suitable for the in vitro hatching of the red crayfish embryos is simple in structure, easy to operate, easy to observe the growth and development status of the red crayfish embryos during the hatching process, and can significantly improve the hatching survival of the red crayfish embryos. Rate.

The present invention is not limited to the above-mentioned specific embodiments, and various modifications and changes can be made to the present invention. Any modification, equivalent replacement, improvement, etc. made to the above embodiments according to the technical essence of the present invention shall be included within the protection scope of the present invention.

Claims (5)

1. a device suitable for in vitro hatching of red crayfish embryos, is characterized in that, comprises: support base; an incubator, one end is closed and one end is open, the closed end is fixedly installed in the support base; the incubator is provided with a first filter body and a second filter body, the first filter body, the second filter body The filter body and the side wall of the incubator enclose a hatching space for the hatching of red crayfish embryos; an inlet pump for delivering culture water to the incubator; and a water inlet pipe, set in the incubator, one end of which penetrates the first filter body and is connected to the inlet water pump through a connecting pipe, and the other end penetrates the second filter body; The incubator is made of transparent plexiglass, and a water outlet is arranged near the open end of the incubator, and the water outlet is arranged outside the incubation space. 2. a kind of device suitable for in vitro hatching of red crayfish embryos as claimed in claim 1, is characterized in that, described first filter body and/or described second filter body are movably arranged in described incubator , the hatching space volume can be adjusted. 3. a kind of device suitable for in vitro hatching of red crayfish embryos as claimed in claim 2, is characterized in that, described first filter body and described second filter body are filter sponges, and described filter sponge thickness 4~6 cm. 4. A device suitable for in vitro hatching of red crayfish embryos as claimed in claim 1, wherein the incubator is in the shape of a cylinder. 5 . The device suitable for in vitro hatching of red crayfish embryos according to claim 4 , wherein the closed end of the incubator is in a circular arc shape. 6 .

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