Device for obtaining mature eggs of large yellow croakers

Abstract

The utility model relates to the technical field of larimichthys crocea culture, in particular to a device for obtaining mature eggs of larimichthys crocea. Which comprises a plastic fish containing bag and is characterized in that an ovulation opening, a bag opening and an air exhaust opening are formed in the plastic fish containing bag; a plastic clamp is arranged on the bag opening; the extraction opening is connected with a vacuum pump; a rubber ring is arranged on the ovulation opening. The device has the advantages that when the device is used, the large yellow croaker with mature gonad is anesthetized and then placed into the plastic fish containing bag from the bag opening, the bag opening is sealed through the plastic clamp after being placed into the plastic fish containing bag, then the position of the reproductive hole of the large yellow croaker is adjusted, the rubber ring on the ovulation opening is aligned with the reproductive hole of the large yellow croaker and is pressed, and then the large yellow croaker is ovulated. And air in the bag is sucked through the vacuum pump. Under atmospheric pressure, mature ovum in the abdominal cavity of the large yellow croaker is squeezed out from reproductive holes, body surface scales of the large yellow croaker are not damaged, and the large yellow croaker in anesthesia is basically not damaged.

Description

Technical Field

[0001] The utility model relates to the technical field of large yellow croaker breeding, and in particular to a device for obtaining mature eggs of large yellow croaker. Background Art

[0002] Artificial egg squeezing and fertilization of yellow croaker is an important means of breeding and researching yellow croaker. The method is mainly to anesthetize the yellow croaker with mature gonads and then squeeze the abdomen of the female yellow croaker repeatedly by hand to let the mature eggs flow out, and then collect the mature eggs.

[0003] A Chinese invention patent (CN107624684A) discloses a method for artificial egg collection of female sturgeons, comprising the steps of: placing parent fish into a cultivation pond with a water temperature of 18-25°C, lowering the water temperature to 7-14°C after 10-20 days, raising the temperature to 16-18°C after 12-16 days and cultivating for 5-10 days; selecting female parent eggs with maturity of stage IV by abdominal puncture, extracting eggs by two injections of oxytocin combined with the squeezing method, and finally extracting the remaining mature eggs from the female parent by live egg extraction; the above invention has the disadvantage that: in the process of artificial egg squeezing, it is easy to cause the female fish to lose scales, damage the body surface and then be infected with bacteria and die, resulting in the loss of high-quality parent fish. Utility Model Content

[0004] The technical problem to be solved by the utility model is to provide a device for obtaining mature eggs of large yellow croaker without causing the scales of large yellow croaker to fall off during the process of obtaining mature eggs of large yellow croaker.

[0005] In order to solve the above technical problems, the technical solution adopted by the utility model is:

[0006] Provided is a device for obtaining mature eggs of large yellow croaker, comprising a plastic fish bag, wherein the plastic fish bag is provided with an ovulation opening, a bag opening and an air suction opening; a plastic clip is provided on the bag opening; the air suction opening is connected to a vacuum pump; and a rubber ring is provided on the ovulation opening.

[0007] Furthermore, the air extraction port is circular with a diameter of 8-10 mm.

[0008] Furthermore, a plurality of anti-skid rubber pads are arranged inside the plastic fish bag.

[0009] Furthermore, one side of the bag opening is provided with mutually parallel concave buckles and convex buckles, and the other side of the bag opening is provided with mutually parallel convex buckles and concave buckles, and the convex buckles and concave buckles on both sides match each other.

[0010] Furthermore, the plastic fish bag is provided with an air valve.

[0011] Furthermore, it also includes a placing table, the table top of which is a downwardly concave arc surface.

[0012] Furthermore, a detachable fallopian tube is provided on the ovulation opening.

[0013] Furthermore, a filter screen is provided on the air suction port.

[0014] The beneficial effects of the utility model are: providing a device for obtaining mature eggs of large yellow croaker, when in use, large yellow croaker with mature gonads is anesthetized and loaded into a plastic fish bag from the bag mouth, the bag mouth is sealed with a plastic clip after loading, and then the position of the genital opening of the large yellow croaker is adjusted, the rubber ring on the ovulation opening is aligned with the genital opening of the large yellow croaker and pressed, and the air in the bag is sucked by a vacuum pump. Under atmospheric pressure, the mature eggs in the abdominal cavity of the large yellow croaker are squeezed out from the genital opening, without damaging the surface scales of the large yellow croaker, and there is basically no damage to the large yellow croaker under anesthesia. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a schematic diagram of the structure explosion of a device for obtaining mature eggs of large yellow croaker according to the utility model;

[0016] Figure 2 This is a schematic diagram of the overall state of a device for obtaining mature eggs of large yellow croaker according to the utility model;

[0017] Figure 3 For this utility model Figure 1 A magnified view of point A;

[0018] Description of labels:

[0019] 1. Plastic fish bag; 11. Ovulation opening; 111. Rubber ring; 112. Oviduct; 12. Bag opening; 121. Concave buckle; 122. Convex buckle; 13. Air extraction port; 131. Filter; 14. Anti-slip rubber pad; 15. Air valve;

[0020] 2. Plastic clip;

[0021] 3. Vacuum pump;

[0022] 4. Placement table. DETAILED DESCRIPTION

[0023] In order to explain the technical content, achieved objectives and effects of the present invention in detail, the following is an explanation in conjunction with the implementation modes and the accompanying drawings.

[0024] See also Figure 1-3 The utility model provides a device for obtaining mature eggs of large yellow croaker without causing scales of large yellow croaker to fall off during the process of obtaining mature eggs of large yellow croaker.

[0025] The device for obtaining mature eggs of large yellow croaker comprises a plastic fish bag 1, on which an ovulation opening 11, a bag opening 12 and an air suction opening 13 are arranged; a plastic clip 2 is arranged on the bag opening 12; the air suction opening 13 is connected to a vacuum pump 3; and a rubber ring 111 is arranged on the ovulation opening 11.

[0026] As can be seen from the above description, when in use, the large yellow croaker with mature gonads is anesthetized and then loaded into the plastic fish bag 1 from the bag opening 12. After loading, the bag opening 12 is sealed with a plastic clip, and then the position of the genital opening of the large yellow croaker is adjusted, the rubber ring 111 on the ovulation opening 11 is aligned with the genital opening of the large yellow croaker and pressed, and the air in the bag is sucked by the vacuum pump 3. Under atmospheric pressure, the mature eggs in the abdominal cavity of the large yellow croaker are squeezed out from the genital opening, without damaging the surface scales of the large yellow croaker, and there is basically no damage to the large yellow croaker under anesthesia.

[0027] Furthermore, the air extraction port 13 is circular with a diameter of 8-10 mm.

[0028] From the above description, it can be seen that the air suction port 13 is circular with a diameter of 8-10 mm, which is adapted to the reproductive opening of the large yellow croaker and can be better aligned with the reproductive opening of the large yellow croaker to prevent air outside the bag from leaking into the bag.

[0029] Furthermore, a plurality of anti-skid rubber pads 14 are provided inside the plastic fish bag 1 .

[0030] As can be seen from the above description, a plurality of anti-skid rubber pads 14 are arranged inside the plastic fish bag 1 to prevent the large yellow croaker from sliding inside the plastic fish bag 1 during operation, thereby affecting the operation.

[0031] Furthermore, a concave buckle 121 and a convex buckle 122 are provided on one side of the bag opening 12, and a convex buckle 122 and a concave buckle 121 are provided on the other side of the bag opening 12, and the convex buckles 122 and concave buckles 121 on both sides match each other.

[0032] It can be seen from the above description that when the bag opening 12 is closed, the convex buckles 122 and the concave buckles 121 on both sides are buckled with each other to improve air tightness.

[0033] Furthermore, the plastic fish bag 1 is provided with an air valve 15 .

[0034] From the above description, it can be seen that after the mature eggs in the abdominal cavity of the large yellow croaker are squeezed out, the air valve 15 is first opened to allow some air to enter the plastic fish bag 1 so that the air pressure in the plastic fish bag 1 is balanced with the outside, making it easier to take the large yellow croaker out of the plastic fish bag 1.

[0035] Furthermore, it also includes a placing table 4, and the table surface of the placing table 4 is a downwardly concave arc surface.

[0036] From the above description, it can be seen that the table top of the placing table is a downwardly concave arc surface, which can play a fixing role and facilitate the staff to operate the device.

[0037] Furthermore, a detachable fallopian tube 112 is provided on the ovulation opening 11 .

[0038] As can be seen from the above description, the ovulation opening 11 is provided with a detachable fallopian tube 112, which is convenient for disassembly and cleaning to avoid egg residue.

[0039] Furthermore, a filter screen 131 is provided on the air suction port 13 .

[0040] As can be seen from the above description, a filter screen 131 is provided on the air extraction port 13 to prevent foreign matter from entering the vacuum pump 3 during air extraction.

[0041] Embodiment 1:

[0042] Application scenario: This embodiment provides a device that does not cause the scales of large yellow croaker to fall off during the process of obtaining mature eggs of large yellow croaker.

[0043] like Figure 1-3 The device for obtaining mature eggs of large yellow croaker shown in the figure comprises a plastic fish bag 1, characterized in that: the plastic fish bag 1 is provided with an ovulation opening 11, a bag opening 12 and an air suction opening 13; the bag opening 12 is provided with a plastic clip 2; the air suction opening 13 is connected to a vacuum pump 3; and the ovulation opening 11 is provided with a rubber ring 111. A plurality of anti-skid rubber pads 14 are provided inside the plastic fish bag 1. A concave buckle 121 and a convex buckle 122 are provided on one side of the bag opening 12, and a convex buckle 122 and a concave buckle 121 are provided on the other side of the bag opening 12, and the convex buckles 122 and concave buckles 121 on both sides match each other. A detachable fallopian tube 112 is provided on the ovulation opening 11. A filter 131 is provided on the air suction opening 13.

[0044] The above-mentioned device for obtaining mature eggs of yellow croaker is as follows: when in use, the yellow croaker with mature gonads is anesthetized and loaded into the plastic fish bag 1 from the bag opening 12. After loading, the bag opening 12 is sealed with a plastic clip, and then the position of the yellow croaker's genital opening is adjusted, the rubber ring 111 on the ovulation opening 11 is aligned with the yellow croaker's genital opening and pressed, and the air in the bag is sucked by the vacuum pump 3. Under atmospheric pressure, the mature eggs in the abdominal cavity of the yellow croaker are squeezed out from the genital opening, without damaging the yellow croaker's body scales, and basically no damage to the yellow croaker under anesthesia. The plastic fish bag 1 is provided with a plurality of anti-skid rubber pads 14 inside to prevent the yellow croaker from sliding in the plastic fish bag 1 during operation, which affects the operation. When the bag opening 12 is closed, the convex buckles 122 and the concave buckles 121 on both sides are buckled with each other to improve air tightness. The ovulation opening 11 is provided with a detachable oviduct 112, which is convenient for disassembly and cleaning to avoid egg residue. The air extraction port 13 is provided with a filter screen 131 to prevent foreign matter from entering the vacuum pump 3 during air extraction.

[0045] The above description is only an embodiment of the present invention, and does not limit the patent scope of the present invention. Any equivalent transformations made using the contents of the specification and drawings of the present invention, or directly or indirectly applied in the relevant technical field, are also included in the patent protection scope of the present invention.

Claims

1. A device for obtaining mature eggs of large yellow croaker, comprising a plastic fish bag, characterized in that: The plastic fish bag is provided with an ovulation opening, a bag opening and an air extraction opening; a plastic clip is provided on the bag opening; a vacuum pump is connected to the air extraction opening; and a rubber ring is provided on the ovulation opening.

2. The device for obtaining mature eggs of large yellow croaker according to claim 1, characterized in that: The air extraction port is circular with a diameter of 8-10 mm.

3. The device for obtaining mature eggs of large yellow croaker according to claim 1, characterized in that: A plurality of anti-skid rubber pads are arranged inside the plastic fish bag.

4. The device for obtaining mature eggs of large yellow croaker according to claim 1, characterized in that: One side of the bag opening is provided with a concave buckle and a convex buckle which are parallel to each other, and the other side of the bag opening is provided with a convex buckle and a concave buckle which are parallel to each other, and the convex buckles and concave buckles on both sides match each other.

5. The device for obtaining mature eggs of large yellow croaker according to claim 1, characterized in that: The plastic fish bag is provided with an air valve.

6. The device for obtaining mature eggs of large yellow croaker according to claim 1, characterized in that: It also includes a placing table, the table surface of which is a downwardly concave arc surface.

7. The device for obtaining mature eggs of large yellow croaker according to claim 1, characterized in that: The ovulation opening is provided with a detachable fallopian tube.

8. The device for obtaining mature eggs of large yellow croaker according to claim 1, characterized in that: A filter screen is arranged on the air suction port.

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