CN110741988A - Loach egg taking device and method - Google Patents

Loach egg taking device and method Download PDF

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Publication number
CN110741988A
CN110741988A CN201911213290.7A CN201911213290A CN110741988A CN 110741988 A CN110741988 A CN 110741988A CN 201911213290 A CN201911213290 A CN 201911213290A CN 110741988 A CN110741988 A CN 110741988A
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CN
China
Prior art keywords
loach
baffle
bottom plate
egg taking
taking device
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Pending
Application number
CN201911213290.7A
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Chinese (zh)
Inventor
陈建华
王梦杰
王玮欣
李雪
朱明�
王海华
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Jiangsu Ocean University
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Jiangsu Ocean University
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Publication date
Application filed by Jiangsu Ocean University filed Critical Jiangsu Ocean University
Priority to CN201911213290.7A priority Critical patent/CN110741988A/en
Publication of CN110741988A publication Critical patent/CN110741988A/en
Pending legal-status Critical Current

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    • AHUMAN NECESSITIES
    • A01AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01KANIMAL HUSBANDRY; AVICULTURE; APICULTURE; PISCICULTURE; FISHING; REARING OR BREEDING ANIMALS, NOT OTHERWISE PROVIDED FOR; NEW BREEDS OF ANIMALS
    • A01K61/00Culture of aquatic animals
    • A01K61/10Culture of aquatic animals of fish
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02ATECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
    • Y02A40/00Adaptation technologies in agriculture, forestry, livestock or agroalimentary production
    • Y02A40/80Adaptation technologies in agriculture, forestry, livestock or agroalimentary production in fisheries management
    • Y02A40/81Aquaculture, e.g. of fish

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  • Life Sciences & Earth Sciences (AREA)
  • Environmental Sciences (AREA)
  • Marine Sciences & Fisheries (AREA)
  • Zoology (AREA)
  • Animal Husbandry (AREA)
  • Biodiversity & Conservation Biology (AREA)
  • Catching Or Destruction (AREA)

Abstract

The invention discloses a loach egg taking device and an egg taking method, which comprise a bottom plate and a baffle plate, wherein the baffle plate is vertical to the bottom plate and slides, a groove body is arranged above the baffle plate, a rolling shaft is arranged in the groove body, a roller is sleeved on the rolling shaft, a groove hole is formed in the side wall of the rear end of the baffle plate, and a rubber band penetrates through the baffle plate and is used for fixing the head of a loach; the egg taking device and the egg taking method have the advantages of simple design, convenience in operation, wide application range and reduction in damage to loaches; the method can well meet the requirements of loach egg taking for artificial induced spawning such as scientific experimental research, culture production and the like.

Description

Loach egg taking device and method
Technical Field
The invention relates to the technical field of artificial breeding of loaches, in particular to a loach egg taking device and method.
Background
The artificial breeding of loach mainly adopts the method of artificial egg extrusion and dry fertilization. Loaches are easy to drill and have smooth body surfaces, so that the loaches are not easy to grasp; in the process of extruding eggs of parent loaches, an operator usually wears a yarn glove with one hand to tightly hold the parent loaches with force, the other hand extrudes the abdomen of the parent loaches to discharge the eggs from genital holes, the parent loaches struggle with force when being stimulated by the outside, and the parent loaches often slide down from the hands, so that a great deal of labor and time are wasted, and certain difficulty is brought to the parent loaches in taking the eggs; according to the traditional method for taking eggs through manual extrusion, on one hand, the parent loaches need to be grabbed forcefully to prevent the parent loaches from slipping off, on the other hand, the degree of exertion is not easy to control in the egg extruding process, so that the parent loaches are damaged, and the survival rate of the parent loaches after eggs are taken is very low.
The parent loach ovum taking method adopted in scientific research or production practice has the defects of inconvenient operation, low efficiency, easy damage to the parent loach and the like. Therefore, the invention provides the loach egg taking device and the loach egg taking method for meeting the requirements of artificial egg taking and fertilization of the loaches in scientific research and production.
Disclosure of Invention
Aiming at the defects of the prior art, the invention provides the loach egg taking device and the loach egg taking method which are reasonable in design and convenient to use.
The utility model provides an egg device is got to loach, includes bottom plate and baffle, and baffle perpendicular to bottom plate realizes sliding, the baffle top is equipped with the cell body, be equipped with the roller bearing in the cell body, the cover has the gyro wheel on the roller bearing, the rear end lateral wall of baffle has the slotted hole, and the rubber band runs through the head that the baffle is used for fixed loach.
Preferably, the height of the baffles is gradually reduced from the rear end to the front end, and the number of the baffles is at least 2.
Preferably, the bottom plate penetrates into a square hole below the baffle plate, and then the baffle plate moves on the bottom plate.
Preferably, the back of bottom plate is equipped with the sand grip, and the square hole below of baffle corresponds the sand grip and is equipped with the recess.
Preferably, the protruding strips and the grooves are respectively provided with two protruding strips and two grooves.
Preferably, the side surface of the baffle and the upper surface of the bottom plate are adhered with a layer of sponge soft body, and the tail end of the bottom plate is in a slope shape.
Preferably, a light shield is further arranged between the baffles and used for covering the head of the loach.
Preferably, the number of the rollers on the roller is at least 1, the rollers can be increased according to the situation, handles are arranged at two ends of the roller, and the rollers are rubber wheels.
An egg taking method based on a loach egg taking device comprises the following steps:
(1) taking loaches to be oozed, and adjusting the distance of the baffle plates according to the size of the loaches;
(2) the loach is placed between the baffles to be clamped, the head of the loach is fixed at the rear ends of the baffles and the bottom plate through the rubber band, the head of the loach is placed in the light shield, the belly of the loach is upward, and the tail of the loach is placed at the front ends of the baffles and the bottom plate;
(3) the roller is arranged between the baffles and is attached to the belly of the loach, and the roller rolls from the head of the loach to the top down through the guide of the groove body, so that eggs are discharged from the reproductive hole of the loach;
(4) flushing the loach genital pore periphery with a certain amount of normal saline to make the ovum flow into the ovum container along the bottom plate end;
(5) and (5) putting the loaches which have taken eggs back into the water pool.
By adopting the technical scheme, the invention has the beneficial effects that:
the method can reduce the operation time, improve the efficiency, is very convenient to operate, and can greatly avoid the damage of the traditional artificial egg squeezing method to the parent loaches; the method can well meet the egg squeezing requirement in scientific research and loach culture production processes.
The invention can reduce the damage to the loaches by taking the loaches eggs, and can extrude the eggs of a plurality of loaches, thereby greatly improving the egg taking efficiency. The egg taking device and the egg taking method are simple in design, convenient to operate, wide in application range and capable of reducing damage to parent loaches. The method can well meet the requirements of loach egg taking for artificial induced spawning such as scientific experimental research, culture production and the like.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the technical descriptions of the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.
FIG. 1 is a side view of the present invention.
Fig. 2 is a rear view structural view of the invention.
Fig. 3 is a view showing the rear structure of the base plate.
Fig. 4 is a side view of the base plate.
In the figure:
1. the device comprises a bottom plate, 2, a baffle, 3, rollers, 4, a rolling shaft, 5, a groove body, 6, square holes, 7, a groove hole, 8, a groove, 9, a convex strip, 10, a rubber band, 11 and a handle.
Detailed Description
The technical solutions in the embodiments of the present invention are clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without creative efforts, shall fall within the protection scope of the present invention.
As shown in fig. 1-4, an egg taking device for loaches comprises a bottom plate 1 and a baffle 2, wherein the baffle 2 is perpendicular to the bottom plate 1 and slides, a groove body 5 is arranged above the baffle 2, a roller 4 is arranged in the groove body 5, the roller 4 is sleeved with a roller 3, the side wall of the rear end of the baffle 2 is provided with a groove hole 7, and a rubber band 10 penetrates through the baffle and is used for fixing the head of the loach.
The height of the baffle plates 2 is gradually reduced from the rear end to the front end, and the number of the baffle plates 2 is at least 2.
The bottom plate 1 penetrates into the square hole 6 below the baffle 2, and then the baffle 2 moves on the bottom plate 1.
The back of bottom plate 1 is equipped with sand grip 1, and the square hole 6 below of baffle 2 corresponds sand grip 1 and is equipped with recess 8.
The convex strips 9 and the grooves 8 are respectively provided with two.
The side surface of the baffle and the upper surface of the bottom plate are adhered with a layer of sponge soft body, and the tail end of the bottom plate is in a slope shape.
A light shield is arranged between the baffles 2 and used for covering the head of the loach.
At least 1 roller 3 on the roller 4 can be selected to increase according to the situation, handles 11 are arranged at two ends of the roller 4, and the roller 3 is a rubber wheel.
An egg taking method based on a loach egg taking device comprises the following steps:
(1) taking loaches to be oozed, and adjusting the distance of the baffle plates according to the size of the loaches;
(2) the loach is placed between the baffles to be clamped, the head of the loach is fixed at the rear ends of the baffles and the bottom plate through the rubber band, the head of the loach is placed in the light shield, the belly of the loach is upward, and the tail of the loach is placed at the front ends of the baffles and the bottom plate;
(3) the roller is arranged between the baffles and is attached to the belly of the loach, and the roller rolls from the head of the loach to the top down through the guide of the groove body, so that eggs are discharged from the reproductive hole of the loach;
(4) flushing the loach genital pore periphery with a certain amount of normal saline to make the ovum flow into the ovum container along the bottom plate end;
(5) and (5) putting the loaches which have taken eggs back into the water pool.
Example 1
Manufacturing the loach egg taking device:
1. the loach ovum taking device can be prepared by the following method, but is not limited to the following method: taking two wooden or plastic plates with the thickness of 0.2-0.4 cm and the length of 12-15 multiplied by 2.5-3 cm (length multiplied by width), sticking sponge or silica gel soft bodies with the thickness of about 0.1 cm on one side of each rectangular plate, and forming a square hole at the bottom to form a baffle;
2. taking a wood or plastic plate with the thickness of 0.5 cm and the length of 13-16 multiplied by 3-5 cm (length multiplied by width) to form a bottom plate;
3. the baffles in the step 1 are embedded into the two ends of the bottom plate formed in the step 2 through square holes, and through holes are formed among the baffles and used for penetrating rubber bands to fix the heads of the loaches;
4. the roller is made of soft material such as rubber with a diameter of 2-2.5 cm.
And (3) taking 20 female loaches with mature gonads, and carrying out an loach egg taking experiment by using the loach egg taking device prepared in example 1.
Taking female loaches which are 13-15 cm in length and well developed and swell in the abdomen, putting the female loaches into a water pool for later use, carrying out artificial induced spawning on the female loaches by adopting a back intramuscular injection method, and starting artificial egg taking after 12 h of induced spawning.
1. Taking eggs by using a loach egg taking device:
1) putting the female loaches which are induced to spawn between the baffles, putting the heads of the female loaches into a black light shade, and keeping the abdominal sides of the female loaches upward to stabilize the loaches;
2) a rolling shaft penetrates into the guide groove body of the baffle plate, the rolling wheel is sleeved on the rolling shaft, the rolling wheel is arranged between the baffle plates and is attached to the belly of the loach, and handles at two ends of the rolling shaft are held by hands to roll from the head of the loach to the top from the head of the loach back and forth along the guide groove body, so that loach eggs are discharged until no eggs flow out from the genital hole;
3) loosening the baffle, putting the loaches with the eggs taken back into the water pool, and repeating the step 1).
In order to ensure that the baffle is vertical to the bottom plate and is tidy in the moving process, two convex strips are arranged at the bottom of the bottom plate and correspond to the grooves in the square holes of the baffle.
After taking eggs, the tail end of the bottom plate needs to be washed by physiological saline, and the tail end of the bottom plate is in a slope shape in order to facilitate the downward sliding of the washing water.
The above description is only an embodiment of the present invention, but the scope of the present invention is not limited thereto, and any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope of the present invention are included in the scope of the present invention.

Claims (9)

1. The utility model provides an egg device is got to loach which characterized in that: including bottom plate (1) and baffle (2), baffle (2) perpendicular to bottom plate (1) realizes sliding, baffle (2) top is equipped with cell body (5), be equipped with roller bearing (4) in cell body (5), the cover has gyro wheel (3) on roller bearing (4), the rear end lateral wall of baffle (2) has slotted hole (7), and rubber band (10) run through the baffle and are used for the head of fixed loach.
2. The loach egg taking device according to claim 1, characterized in that: the height of the baffle plates (2) is gradually reduced from the rear end to the front end, and the number of the baffle plates (2) is at least 2.
3. The loach egg taking device according to claim 1, characterized in that: the bottom plate (1) penetrates into the square hole (6) below the baffle (2), and then the baffle (2) moves on the bottom plate (1).
4. The loach egg taking device according to claim 3, characterized in that: the back of the bottom plate (1) is provided with a convex strip (1), and a groove (8) is arranged below the square hole (6) of the baffle plate (2) and corresponds to the convex strip (1).
5. The loach egg taking device according to claim 4, characterized in that: the convex strips (1) and the grooves (8) are respectively provided with two.
6. The loach egg taking device according to claim 1, characterized in that: the side surface of the baffle and the upper surface of the bottom plate are adhered with a layer of sponge soft body, and the tail end of the bottom plate is in a slope shape.
7. The loach egg taking device according to claim 1, characterized in that: a light shield is arranged between the baffles (2) and used for covering the head of the loach.
8. The loach egg taking device according to claim 1, characterized in that: at least 1 roller (3) on roller bearing (4), can select to increase according to the condition, handle (11) are installed to roller bearing (4) both ends, and rubber tyer is adopted in roller (3).
9. An egg taking method based on a loach egg taking device is characterized by comprising the following steps: the method comprises the following steps:
(1) taking loaches to be oozed, and adjusting the distance of the baffle plates according to the size of the loaches;
(2) the loach is placed between the baffles to be clamped, the head of the loach is fixed at the rear ends of the baffles and the bottom plate through the rubber band, the head of the loach is placed in the light shield, the belly of the loach is upward, and the tail of the loach is placed at the front ends of the baffles and the bottom plate;
(3) the roller is arranged between the baffles and is attached to the abdomen of the loach, and the roller is guided by the groove body to roll from the head of the loach to the top down, so that eggs are discharged from the genital orifice of the loach;
(4) flushing the loach genital pore periphery with a certain amount of normal saline to make the ovum flow into the ovum container along the bottom plate end;
(5) and (5) putting the loaches which have taken eggs back into the water pool.
CN201911213290.7A 2019-12-02 2019-12-02 Loach egg taking device and method Pending CN110741988A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201911213290.7A CN110741988A (en) 2019-12-02 2019-12-02 Loach egg taking device and method

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201911213290.7A CN110741988A (en) 2019-12-02 2019-12-02 Loach egg taking device and method

Publications (1)

Publication Number Publication Date
CN110741988A true CN110741988A (en) 2020-02-04

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CN201911213290.7A Pending CN110741988A (en) 2019-12-02 2019-12-02 Loach egg taking device and method

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Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3793676A (en) * 1972-07-07 1974-02-26 Marine Constr & Design Co Method and apparatus for removing roe and viscera from a fish
JP2003310146A (en) * 2002-04-19 2003-11-05 Sato Suisan Kk Method for breaking salmon roe, apparatus for breaking salmon roe, and method for using apparatus for breaking salmon roe
CN203608709U (en) * 2014-02-23 2014-05-28 威海圣航水产科技有限公司 Turbot fish roe collecting massage idler wheel
CN203841837U (en) * 2014-05-12 2014-09-24 李明哲 Novel rat fixing device
CN205623876U (en) * 2016-05-18 2016-10-12 中国长江三峡集团公司中华鲟研究所 Multi -functional sturgeon platform of checking up work
CN206433584U (en) * 2017-01-12 2017-08-25 四川潺绿农业科技有限公司 A kind of female loach takes ovum instrument
CN208114671U (en) * 2017-04-17 2018-11-20 燕山大学 A kind of fish fixed station that auxiliary stereotaxic apparatus uses
CN209420661U (en) * 2018-12-25 2019-09-24 酒泉市海东鲟鱼开发有限责任公司 A kind of sturgeon for taking ovum high-efficient takes ovum frame
CN211268157U (en) * 2019-12-02 2020-08-18 江苏海洋大学 Loach ovum device

Patent Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3793676A (en) * 1972-07-07 1974-02-26 Marine Constr & Design Co Method and apparatus for removing roe and viscera from a fish
JP2003310146A (en) * 2002-04-19 2003-11-05 Sato Suisan Kk Method for breaking salmon roe, apparatus for breaking salmon roe, and method for using apparatus for breaking salmon roe
CN203608709U (en) * 2014-02-23 2014-05-28 威海圣航水产科技有限公司 Turbot fish roe collecting massage idler wheel
CN203841837U (en) * 2014-05-12 2014-09-24 李明哲 Novel rat fixing device
CN205623876U (en) * 2016-05-18 2016-10-12 中国长江三峡集团公司中华鲟研究所 Multi -functional sturgeon platform of checking up work
CN206433584U (en) * 2017-01-12 2017-08-25 四川潺绿农业科技有限公司 A kind of female loach takes ovum instrument
CN208114671U (en) * 2017-04-17 2018-11-20 燕山大学 A kind of fish fixed station that auxiliary stereotaxic apparatus uses
CN209420661U (en) * 2018-12-25 2019-09-24 酒泉市海东鲟鱼开发有限责任公司 A kind of sturgeon for taking ovum high-efficient takes ovum frame
CN211268157U (en) * 2019-12-02 2020-08-18 江苏海洋大学 Loach ovum device

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