Breeding device capable of simulating ecological spawning environment and preventing ricefield eels from fighting in breeding period
By designing a breeding device that imitates ecological egg laying environment and using conical tubes to separate male and female eels, the low output problem caused by fighting in eel farming was solved, and the fish egg output was increased.
Patent Information
- Application Number
- CN202421640964.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-07-11
- Publication Date
- 2025-06-27
- Estimated Expiration
- 2034-07-11
AI Technical Summary
In eel farming, the mating rate and fish egg production rate are low due to the struggle between male and female, and the egg spawning environment of cage farming is poor, which is easily affected by the outside world, resulting in a decrease in seedling emergence.
A breeding device that imitates the ecological egg laying environment and prevents fighting during the breeding period of eels, separates male and female eels through conical tubes to reduce the fighting rate, and creates a hidden egg laying environment through bay windows covering palm sheets.
It effectively reduces the battle rate and death rate of eels, improves the spawning rate of eels, and increases the egg production volume by 10% to 15%.
Smart Images
Figure CN223025237U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the field of ecological bionics, and particularly relates to a breeding device for imitating an ecological spawning environment and preventing fighting among rice field eels during the breeding period. Background Art
[0002] The rice field eel (Monopterus albus) is one of the characteristic freshwater fish species with very rapid breeding development in China in recent years. Its breeding has spread throughout the country, especially in provinces such as Hubei, Hunan, Anhui, Jiangxi, and Zhejiang in the middle and lower reaches of the Yangtze River. The breeding of rice field eels has become one of the leading varieties in the freshwater aquaculture industry in these areas. At present, due to the fact that the large-scale production technology of rice field eel eggs has not yet achieved a breakthrough, large-scale artificial production is restricted, the output rate of fish eggs is low, and the production cannot meet the demand for seedlings in the increasingly developing rice field eel industry. There is an urgent need for artificial batch production of rice field eel eggs.
[0003] Under natural conditions, rice field eels have a very strong territorial awareness. During the breeding period, both males and females are highly aggressive, and fighting behaviors generally occur, and in severe cases, they are disabled or killed. At present, the natural fertilization method is mainly used for the breeding of rice field eels, but during the breeding process, the fighting behavior often leads to a low mating rate and a low fish egg output rate of rice field eels. The rice field eel is accustomed to spitting foam to build a nest in a hidden and narrow hole and then laying eggs in the hole. There is no mud in the cage culture, and the rice field eels mainly rely on aquatic plants for inhabitation and breeding. Its spawning environment is poor and is easily affected by the outside world, resulting in a reduced emergence rate. Therefore, it has become an urgent problem to invent a breeding device for imitating an ecological spawning environment and preventing fighting among rice field eels during the breeding period. Summary of the Utility Model
[0004] The purpose of the utility model is to overcome the above deficiencies and provide a breeding device for imitating an ecological spawning environment and preventing fighting among rice field eels during the breeding period, so as to solve the problems of poor spawning environment in cage culture, and injuries and deaths of rice field eels caused by fighting, resulting in a decrease in the mating rate and a reduction in the output of rice field eel eggs.
[0005] To solve the above problems, the present application is achieved through the following technical solutions:
[0006] A breeding device for imitating an ecological spawning environment and preventing fighting among rice field eels during the breeding period includes a first water tank. A liquid level gauge and a water replenishing pipe are installed on the first water tank. The first water tank is connected to a second water tank through a conical pipe. One side of the second water tank is connected to a water pump box. A fourth filter screen is installed at the inlet of the water pump box. A water pump is provided in the water pump box. The outlet of the water pump is connected to a circulating water pipe. The top of the second water tank is connected to a second convex window. A plurality of suspension ropes are installed on the second convex window. Each suspension rope is connected to a plurality of floating rings. The bottom of the second water tank is connected to a water outlet pipe.
[0007] A water replenishing valve and a first filter screen are arranged on the water replenishing pipe.
[0008] Above the first water tank, there is a first convex window.
[0009] At the outlet of the circulating water pipe, there is a second filter screen, and the outlet of the circulating water pipe is connected to the top first convex window of the first water tank.
[0010] On the water outlet pipe, there is a third filter screen, and an outlet valve is arranged behind the third filter screen.
[0011] One end of the conical pipe has a diameter of 4 - 5 cm, and the other end of the conical pipe has a diameter of 1 - 2 cm.
[0012] The conical pipe is made of a rigid metal material, stainless steel pipe.
[0013] Compared with the prior art, the beneficial effects of the present utility model are as follows:
[0014] 1. The designed conical pipe of the present utility model can effectively separate male and female rice field eels before the estrus period, thereby reducing the fighting rate and the mortality and injury rate of rice field eels, and at the same time increasing the spawning rate of rice field eels.
[0015] 2. This breeding method of the present utility model is different from the previous method of directly placing rice field eels in the same rice field eel breeding box. During the previous breeding period, male and female rice field eels would fight, resulting in injury and death of the weaker party. However, the design of the present utility model allows the weaker party of rice field eels to escape to another water tank during the fight, avoiding casualties.
[0016] 3. The present utility model can create an artificial ecological spawning environment by covering palm leaves through the first convex window and the second convex window. Utilizing the habit of rice field eels to tend to spawn in a concealed environment, it attracts female rice field eels to spawn in a specific area, facilitating the collection of fish eggs.
[0017] 4. The present utility model can reduce the damage of direct sunlight to fish eggs through the first convex window and the second convex window covering palm leaves, stabilize the temperature, create a safe and suitable environment, and increase the spawning amount of rice field eels by 10% - 15%. Description of the Drawings
[0018] Figure 1 It is a schematic cross - sectional view of the main view of the structure of the breeding device for the artificial ecological spawning environment and preventing fighting during the breeding period of rice field eels of the present new type.
[0019] Figure 2 It is a schematic view of the left - hand view structure of the breeding device for the artificial ecological spawning environment and preventing fighting during the breeding period of rice field eels of the present new type.
[0020] Figure 3 It is a schematic view of the top - view structure of the breeding device for the artificial ecological spawning environment and preventing fighting during the breeding period of rice field eels of the present new type.
[0021] Reference numerals: first water tank 1, liquid level gauge 2, water supply pipe 3, water supply valve 301, first filter screen 302, circulating water pipe 4, second filter screen 401, first bay window 5, conical pipe 6, water outlet pipe 7, third filter screen 701, water outlet valve 702, fourth filter screen 8, water pump 9, water pump box 901, suspension rope 10, floating ring 11, second water tank 12, second bay window 1201, pump oxygenator 13;
[0022] A-1 is the water surface. Detailed implementation mode
[0023] It should be understood that the orientation or positional relationship indicated by terms such as "upper, top, one end, bottom, inner" is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present novelty and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, so it cannot be understood as a limitation to the present novelty.
[0024] In addition, the description in the present novelty only refers to the preferred embodiments of the present novelty and is not used to limit the present novelty. Although the present novelty has been described in detail with reference to the foregoing embodiments, for those skilled in the art, they can still modify the technical solutions recorded in the foregoing embodiments, or perform equivalent replacements for some of the technical features. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present novelty shall be included within the protection scope of the present novelty.
[0025] Embodiment 1
[0026] Please refer to Figures 1 to 3 , connection mode of the device: An aquaculture device for an ecological spawning environment and preventing fighting during the breeding period of rice field eels, including a first water tank 1, a liquid level gauge 2 is installed on the first water tank 1, a water supply pipe 3, the first water tank 1 is connected to a second water tank 12 through two conical pipes 6, a water pump box 901 is connected to one side of the second water tank 12, a water pump 9 is provided in the water pump box 901, a fourth filter screen 8 is installed at the inlet of the water pump box 901, the outlet of the water pump 9 is connected to a circulating water pipe 4, the top of the second water tank 12 is connected to a second bay window 1201, a plurality of suspension ropes 10 are installed on the second bay window 1201, each suspension rope 10 is connected to a plurality of floating rings 11, and the bottom of the second water tank 12 is connected to a water outlet pipe 7. Multiple conical pipes 6 can be installed on the first water tank 1, and two are preferably selected in this embodiment. A water supply valve 301 and a first filter screen 302 are provided on the water supply pipe 3.
[0027] Above the water tank 1 is the first convex window 5. The first convex window 5 is used for growing aquatic plants. A second filter screen 401 is provided at the outlet of the circulating water pipe 4, and the outlet of the circulating water pipe 4 communicates with the top of the first water tank 1, i.e., the first convex window 5. Two cross brackets on the first convex window 5 and the second convex window 1201 installed on the first water tank 1 and the second water tank 12 are used to fix or lay aquatic plants. The water replenishing pipe 3 is externally connected to a water source, which is tap water that has been exposed to the sun to remove chlorine. When the water level A-1 in the first water tank 1 is less than 10 cm, the water replenishing pipe 3 is opened for water replenishment. Excess water is discharged through the water outlet pipe 7.
[0028] The water outlet pipe 7 is provided with a third filter screen 701, and a water outlet valve 702 is provided behind the third filter screen 701. Large male eels with a thickness of 3 - 4 cm and small female eels with a thickness of 1 - 2 cm are placed in the first water tank 1 for breeding. The male eels are larger in size, while the female eels are smaller. One side of the tapered pipe 6 has a large hole, and the other side has a small hole. By setting the tapered pipe 6, a water pump 9 is used to pump water, forming a water flow at the tapered pipe 6. The water flow guides the eels to find the hole of the tapered pipe 6 through the tapered pipe 6. One end of the pipe orifice of the tapered pipe 6 has a diameter of 4 - 5 cm, and the other end of the tapered pipe 6 has a diameter of 1 - 2 cm. The side with a larger diameter of the pipe orifice of the tapered pipe 6 has a diameter of 4 - 5 cm, which is convenient for the eels to find the hole of the tapered pipe 6. The side with a smaller diameter of the pipe orifice of the tapered pipe 6 has a diameter of 1 - 2 cm. The diameter of the smaller side of the pipe orifice of the tapered pipe 6 cannot be set too large. The tapered pipe 6 is made of a rigid metal material, stainless steel pipe, to prevent the large eels from drilling into the second water tank 12 by shrinking their bodies. Due to their large size, the male eels cannot pass through the tapered pipe 6, while the female eels follow the water flow through the tapered pipe 6, achieving the purpose of separating the two types of eels.
[0029] Above the second water tank 12, multiple suspension ropes 10 are tied to the second convex window 1201. Each suspension rope 10 is connected to multiple floating rings 11. The floating rings 11 are beneficial for fixing the foam spit out by the female eels on the plastic floating rings 11, facilitating the floating of the eel eggs on the foam to absorb oxygen and light, and preventing the eel eggs from drowning. During the eel egg incubation period, oxygen is continuously supplied through the oxygen pump 13. Aquatic plants can be planted on the first convex window 5 and the second convex window 1201 to provide a better ecological environment for the eels. The first filter screen 302, the second filter screen 401, the third filter screen 701, and the fourth filter screen 8 can prevent the eels from escaping and drilling into other positions, and at the same time play a role in filtering the water quality. The water pump 9 is powered by an external power supply.
[0030] This embodiment discloses a breeding device for an artificial ecological spawning environment and preventing eels from fighting during the breeding period, including the following steps:
[0031] S1: Filter and pass the tap water that has been exposed to the sun to remove chlorine into the first eel water tank 1, so that the water level in the first water tank 1 is about 10 cm high.
[0032] S2: Place eels in the first water tank 1, then install the first convex window 5. Cover the first convex window 5 and the second convex window 1201 with palm bark to form a dome-shaped structure, and plant aquatic plants such as Hydrocotyle vulgaris on it.
[0033] The eel breeding process using this experimental device:
[0034] Use 6 of the above-mentioned new experimental devices for experiments. The treatment method for each new experimental device is as follows:
[0035] ① Treatment of water source: Pass filtered and sun-exposed tap water with chlorine removed into the first water tank 1 of the eels, so that the water level in the first water tank 1 is 10 - 12 cm high.
[0036] ② Create a cultivation environment: Cover the arched first convex window 5 and the second convex window 1201 brackets with palm bark to form a dome-shaped structure, and plant aquatic plants such as Hydrocotyle vulgaris on it.
[0037] ③ Cultivation of eels: Place one male and one female eel in the breeding period in the first water tank 1 of each device.
[0038] ④ Collection of fish eggs: After the third day of observing the appearance of the bubble nest, use an 80-mesh net to scoop up the fish eggs, place them in the subsequent cultivation device, and count the number of fish eggs.
[0039] In this embodiment, the first water tank 1 for placing eels is 60 cm long, 40 cm wide, and 40 cm high. The bottom of the first water tank 1 is connected to the second water tank 12 through a conical pipe 6. The total length of the iron support rods of the first convex window 5 and the second convex window 1201 is 28 cm. The bottom radius of its dome-shaped structure is about 9 cm, and the distance from its vertex to the bottom is about 12 cm.
Claims
1. A breeding device for simulating an ecological spawning environment and preventing eels from fighting during their breeding period, comprising a first water tank (1), characterized in that: The first water tank (1) is equipped with a liquid level meter (2) and a water supply pipe (3). The first water tank (1) is connected to the second water tank (12) via a conical pipe (6). One side of the second water tank (12) is connected to a water pump box (901). The inlet of the water pump box (901) is equipped with a fourth filter screen (8). The water pump box (901) is provided with a water pump (9). The outlet of the water pump (9) is connected to a circulating water pipe (4). The top of the second water tank (12) is connected to a second bay window (1201). The second bay window (1201) is equipped with a plurality of suspension ropes (10). Each of the suspension ropes (10) is connected to a plurality of floating rings (11). The bottom of the second water tank (12) is connected to a water outlet pipe (7). The first bay window (5) and the second bay window (1201) are covered with palm bark.
2. The breeding device for simulating ecological spawning environment and preventing eels from fighting during their breeding period according to claim 1, characterized in that: The water supply pipe (3) is provided with a water supply valve (301) and a first filter screen (302).
3. The breeding device for simulating ecological spawning environment and preventing eels from fighting during their breeding period according to claim 1, characterized in that: A first bay window (5) is arranged above the first water tank (1).
4. The breeding device for simulating ecological spawning environment and preventing eels from fighting during their breeding period according to claim 1, characterized in that: The outlet of the circulating water pipe (4) is provided with a second filter screen (401), and the outlet of the circulating water pipe (4) is connected to the first bay window (5) at the top of the first water tank (1).
5. The breeding device for simulating ecological spawning environment and preventing eels from fighting during their breeding period according to claim 1, characterized in that: The water outlet pipe (7) is provided with a third filter screen (701), and a water outlet valve (702) is provided behind the third filter screen (701).
6. The breeding device for simulating ecological spawning environment and preventing eels from fighting during their breeding period according to claim 1, characterized in that: The diameter of one end of the conical tube (6) is 4 to 5 cm, and the diameter of the other end of the conical tube (6) is 1 to 2 cm.
7. The breeding device for simulating ecological spawning environment and preventing eels from fighting during their breeding period according to claim 1, characterized in that: The conical tube (6) is made of a rigid metal material, a stainless steel tube.