A mandarin fish domestication pool

Abstract

The application discloses a mandarin fish domestication pool, which comprises a pool body, wherein an oxygenation device, a water inlet and a water outlet are arranged in the pool body, a bait fish breeding frame is arranged below the water inlet, and a feeding device is arranged on the side of the bait fish breeding frame; the feeding device comprises a feeding pipe, a bait temporary storage tank arranged on the upper end of the feeding pipe, a feeding hopper arranged on the upper end of the bait temporary storage tank, cathode ring pieces and anode ring pieces arranged in the feeding pipe, and a pulse generator and a pulse power amplifier connected through wires. The domestication pool is improved, so that live fish feeding, live fish and dead fish or feed proportionate feeding are facilitated, and switching and adjustment are facilitated, thereby improving the convenience and success rate of domestication.

Description

Technical Field

[0001] This invention relates to the field of high-density mandarin fish farming technology, and in particular to a mandarin fish acclimatization pond. Background Technology

[0002] With the rapid development of the Huangshan stinky mandarin fish industry, the demand for mandarin fish is increasing, and mandarin fish farming is also emerging locally. The fish species used for Huangshan stinky mandarin fish is the large-sized mandarin fish (Ctenopharyngodon spp.). Wild mandarin fish mainly feed on live fish and shrimp, refusing dead bait or formulated feed; moreover, this species usually lies in wait at the bottom of the water, attacking prey when it approaches, and does not actively seek out prey. To acclimate the fish to surface feeding during the fry stage, thereby reducing the cost of raising mandarin fish, it is necessary to design a breeding pond specifically for mandarin fish acclimatization. This would facilitate the transition from live bait to formulated feed, improving the convenience and success rate of acclimatization. Summary of the Invention

[0003] The purpose of this invention is to provide a mandarin fish domestication pond to facilitate the transition from live bait feeding to feed feeding during the domestication process, thereby improving the convenience and success rate of domestication.

[0004] The technical solution adopted by the present invention to solve its technical problem is: a mandarin fish domestication pond, including a pond body, an oxygenation device, a water inlet and a water outlet are provided in the pond body, a bait fish breeding frame is provided below the water inlet, and a feeding device is provided on the side of the bait fish breeding frame.

[0005] The feeding device includes a feeding pipe, a feed storage tank located at the upper end of the feeding pipe, and a feed hopper located at the upper end of the feed storage tank. The feeding pipe includes a vertical pipe whose upper end connects to the feed storage tank and a horizontal discharge pipe whose lower end connects to the bottom of the vertical pipe. The vertical pipe is a multi-section telescopic rod structure. A cathode ring and an anode ring are respectively located at both ends of the vertical pipe. The cathode ring and the anode ring are connected by wires to a pulse generator for outputting pulse signals and a pulse power amplifier for controlling the output voltage.

[0006] To ensure that the feed is quickly delivered to the set water depth, one end of the horizontal discharge pipe is connected to a high-pressure water source or air source.

[0007] To encourage the bait fish to swim downwards towards the outlet, the cathode ring is positioned at the end of the vertical pipe near the bait storage tank, and the anode ring is positioned at the end near the horizontal discharge pipe.

[0008] To further induce fish to gather near the feeding point, a concealed structure is provided below the bait fish farming frame for mandarin fish to hide.

[0009] To further encourage the fish to start feeding, the feeding device is also equipped with a player that plays the sounds of flowing water and the dense activity of the fish.

[0010] Specifically, the pulse waveform output by the pulse generator is a square wave with a pulse duty cycle of 15-50%; the output frequency is 0.05-10Hz; the output voltage of the pulse power amplifier is set according to the distance between the cathode ring and the anode ring, and the adjustment range is 4-10V / cm. The specific value is selected within the adjustment range according to the required ratio of live fish to dead fish.

[0011] Preferably, a net bag is provided inside the bait fish farming frame, and the bait fish are farmed in the net bag.

[0012] The beneficial effects of this invention are as follows: By improving the acclimatization pond, this invention utilizes the combined effect of bait fish and concealed structures to concentrate the fish population, encouraging them to compete for food during feeding and increasing the feeding enthusiasm of the mandarin fish. Furthermore, by improving the feeding device, it can reach different water depths for feeding, gradually raising it to induce the fish to feed at the surface. The vertical pipe is equipped with cathode and anode rings, which electrocute or stun bait fish passing through the vertical pipe. The voltage can be adjusted by a pulse power amplifier, and the waveform by a pulse generator to control the proportion of bait fish electrocuted. This allows for various feeding methods, including feeding live fish, feeding live and dead fish in a balanced ratio, feeding a mixture of live fish and feed, and feeding pure feed, meeting the feeding needs of each stage of acclimatization.

[0013] The present invention will now be described in more detail with reference to the accompanying drawings and embodiments. Attached Figure Description

[0014] Figure 1 This is a top view of the present invention.

[0015] Figure 2 This is a schematic diagram of the structure of the bait fish farming frame and its feeding device in this invention. Detailed Implementation

[0016] Examples, such as Figure 1 , Figure 2As shown, a mandarin fish acclimatization pond includes a pond body 1. The pond body 1 is equipped with an aeration device 2, a water inlet 3, and a water outlet 4. Preferably, it is a cylindrical culture pond with a diameter of 6-8 meters and a water depth of 1.2-1.5 meters. Water enters from the top of the pond body 1 through a water pipe and exits from the bottom. The water inlet 3 is located near the edge of the pond body 1, and the water outlet direction is along the tangent of the cylindrical culture pond, which facilitates water flow within the culture pond. The water outlet 4 is located in the middle of the pond bottom. The aeration device 2 has a conventional structure and will not be described in detail here. A baitfish culture frame 5 is located below and in front of the water inlet 3. A net bag 51 is installed inside the baitfish culture frame 5, and the baitfish are cultured in the net bag 51. Cultivating the baitfish near the water inlet increases the stocking density of the baitfish, thereby attracting mandarin fish. To ensure that the mandarin fish gather and stay below the bait fish, a concealed structure 7 for the mandarin fish to hide is provided below the bait fish breeding frame 5. The concealed structure 7 can be made of, but is not limited to, aquatic plants. Through the design of the above structure, the mandarin fish are kept together in one place for a long time, making it convenient to feed them and creating a situation where they compete for food.

[0017] To facilitate feeding, a feeding device 6 is installed on the side of the baitfish rearing frame 5 for feeding baitfish and feed. The feeding device 6 specifically includes a feeding pipe 61, a feed storage tank 62 located at the upper end of the feeding pipe 61, a feed hopper 63 at the upper end of the feed storage tank 62, and a discharge valve 68 at the bottom of the feed storage tank 62. The feeding pipe 61 includes a vertical pipe 611 whose upper end connects to the feed storage tank 62, and a horizontal discharge pipe 612 connected to the bottom of the vertical pipe 611. The height of the vertical pipe 611 is adjustable to facilitate adjusting the feeding depth during the acclimatization process. A multi-section telescopic rod structure is preferred; the structure can be referenced from that of a telescopic fishing rod. One end of the horizontal discharge pipe 612 is connected to a high-pressure water source or air source 613. The negative pressure generated by the force of the high-pressure water source or air source 613 can carry the bait fish or feed out of the vertical pipe 611 and out of the discharge port of the horizontal discharge pipe 612. The use of the horizontal discharge pipe 612 can accurately determine the water depth for each discharge, which is convenient for adjusting the feeding depth during acclimatization. At the same time, driven by the water flow, even dead fish and feed have a certain degree of fluidity, mimicking the swimming of live fish, which can meet the feeding habits of mandarin fish towards swimming fish. The feed storage tank 62 is equipped with a water inlet pipe 69 and a timer 610. After the feed enters the feed storage tank 62 through the feed hopper 63, water is injected into the feed storage tank 62 through the water inlet pipe 69 to soak the feed to the hardness required for mandarin fish to eat. The timer 610 is used to control the soaking time. After soaking, the discharge valve 68 is opened for feeding. Of course, the water inlet pipe 69 can be omitted, and water can be directly introduced through the feed hopper 63.

[0018] In order to stun or kill the bait fish scooped from the bait fish breeding frame 5 in a certain proportion, and thus feed the mandarin fish with a set ratio of live and dead fish, so as to change the feeding of mandarin fish from live fish to bait, the two ends of the vertical pipe 611 are respectively provided with a cathode ring 64 and an anode ring 65. The cathode ring 64 and the anode ring 65 are connected by wires to a pulse generator 66 for outputting pulse signals and a pulse power amplifier 67 for controlling the output voltage. The bait fish are stunned or killed by the electric shock of the pulse signal. Since fish have a serotoner response, that is, the habit of swimming towards the anode ring 65, the anode ring 65 is set at the end of the vertical pipe 611 near the horizontal discharge pipe 612, and the cathode ring 64 is set at the end of the vertical pipe 611 near the bait storage tank 62.

[0019] The pulse waveform output by the pulse generator 66 is preferably a square wave with a pulse duty cycle of 15-50% and an output frequency of 0.05-10Hz. The output voltage of the pulse power amplifier 67 is set according to the distance between the cathode ring 64 and the anode ring 65, with an adjustment range of 4-10V / cm. A specific value is selected within the adjustment range according to the required ratio of live to dead fish. The required ratio of live to dead fish is obtained by adjusting and controlling the pulse voltage during electric shock.

[0020] To enhance the feeding stress response of mandarin fish and create a collective feeding frenzy, the feeding device 6 is also equipped with a player 8 that plays the sounds of flowing water and dense fish activity, which can stimulate the mandarin fish to come out and forage for food.

[0021] The method for acclimatizing mandarin fish using the aforementioned acclimatization pond includes the following steps:

[0022] 1) Stocking: Select 5-7cm long mandarin fish fry for acclimatization. Before stocking, pre-release live bait fish equal to 30% of the mandarin fish's body weight into the acclimatization pond so that the fry can feed freely after entering the pond. Set up bait fish rearing frames in the acclimatization pond and release live bait fish into the frames to attract the mandarin fish fry to gather. Then, release the mandarin fish fry into the acclimatization pond at a density of 800-1000 fry / m³. Allow them to feed freely for one day, then stop feeding the bait fish and let them go hungry for one day. Then, feed them live bait fish at the bottom of the pond for 1-2 days at the edge of the bait fish rearing frames. The amount of bait fish should be 15%-20% of the total weight of the mandarin fish in the pond to help them adapt to the pond environment and feeding location.

[0023] 2) Feed live and dead baitfish in proportion and feed them together for 2-3 days. Feed them once a day at sunset to make them feel hungry. During feeding, the amount of baitfish should be 15%-20% of the total weight of the mandarin fish in the pond, and the proportion of dead fish should be 20%-50% and gradually increased.

[0024] Live fish, dead fish, and feed are mixed and fed for 2-3 days, once a day. The ratio of dead fish to live fish is gradually increased from 50% to 100%. At the same time, the amount of feed is 0.5-2.5% of the total weight of mandarin fish in the pond, and is gradually increased. While increasing the amount of feed, the amount of bait fish is reduced, from 20% to 5% of the total weight of mandarin fish in the pond. During this process, the feeding point is continuously raised to the water surface using the feeding device 6.

[0025] The method for dispensing live and dead fish and feed in steps 2) and 3) above is as follows: Weigh the bait fish and pour them into the feed storage tank 62, add a certain amount of water, set the output voltage of the pulse power amplifier 67, turn on the power to the pulse generator 66 and the pulse power amplifier 67, then open the discharge valve 68 and start the high-pressure water or air source 613. The bait fish are partially stunned or killed as they move through the vertical pipe 611, and then fed to a designated depth through the horizontal discharge pipe 612, achieving targeted feeding. The feed can be pre-soaked in the feed storage tank 62 with water according to the feeding time. Soaked feed is easier for mandarin fish to eat and facilitates their digestion and absorption.

[0026] 4) Stop feeding baitfish and use pure feed on the water surface. Feed twice a day: once at sunrise, with the amount of feed being 0.8-1.2% of the total weight of the mandarin fish in the pond, and once at sunset, with the amount of feed being 1.8-2.4% of the total weight of the mandarin fish in the pond. After 1-2 days, the acclimatization will be completed, and the amount of feed will be reduced to keep the mandarin fish hungry, which will make them more likely to compete for food.

[0027] Control group:

[0028] The traditional method of domestication is used, which involves putting mandarin fish fry into the domestication pond and feeding them artificially on the water surface. The feeding methods are as follows: feeding live bait fish in sequence, feeding a combination of live bait fish and dead bait fish, feeding a mixture of live fish, dead fish and feed, and finally feeding them feed.

[0029] The domestication method of this invention and the method of the control experimental group are compared with the results shown in the table below:

[0030] Reference parameters This invention Control group Domestication days 7-10 15-18 Domestication rate 90.2% 32.9%

[0031] As can be seen from the table above, the method of the present invention can significantly improve the domestication rate of mandarin fish and shorten the domestication time.

[0032] The present invention has been described above by way of example with reference to the accompanying drawings. Obviously, the specific implementation of the present invention is not limited to the above-described manner. Any non-substantial improvements made using the inventive concept and technical solution; or the direct application of the inventive concept and technical solution to other situations without modification, are all within the protection scope of the present invention.

Claims

1. A mandarin fish acclimatization pond, comprising a pond body (1), wherein an oxygenation device (2), a water inlet (3), and a water outlet (4) are provided within the pond body (1), characterized in that: A bait fish farming frame (5) is provided below the front of the water inlet (3), and a feeding device (6) is provided on the side of the bait fish farming frame (5). The feeding device (6) includes a feeding pipe (61), a feed storage tank (62) located at the upper end of the feeding pipe (61), and a feed hopper (63) located at the upper end of the feed storage tank (62). Live fish and feed are fed into the feed storage tank (62) through the feed hopper (63). The feeding pipe (61) includes a vertical pipe (611) connected to the feed storage tank (62) at its upper end and a horizontal discharge pipe (612) connected to the bottom of the vertical pipe (611). The vertical pipe (611) is a multi-section telescopic rod structure. 1) A cathode ring (64) and an anode ring (65) are respectively provided at both ends. The cathode ring (64) and the anode ring (65) are connected by wires to provide a pulse generator (66) for outputting pulse signals and a pulse power amplifier (67) for controlling the output voltage. The output voltage of the pulse power amplifier (67) is set according to the distance between the cathode ring (64) and the anode ring (65), and the adjustment range is 4 to 10 V / cm. The specific value is selected within the adjustment range according to the required ratio of live fish to dead fish.

2. The mandarin fish acclimatization pond as described in claim 1, characterized in that: One end of the horizontal discharge pipe (612) is connected to a high-pressure water source or air source (613).

3. The mandarin fish acclimatization pond as described in claim 2, characterized in that: The cathode ring (64) is located at one end of the vertical pipe (611) near the feed storage tank (62), and the anode ring (65) is located at one end near the horizontal discharge pipe (612).

4. The mandarin fish acclimatization pond as described in claim 2, characterized in that: The bait fish farming frame (5) is provided with a concealed structure (7) for mandarin fish to hide below.

5. The mandarin fish acclimatization pond as described in claim 1, characterized in that: The feeding device (6) is also equipped with a player (8) that plays the sound of flowing water and the sound of dense fish activity.

6. The mandarin fish acclimatization pond as described in claim 1, characterized in that: The pulse waveform output by the pulse generator (66) is a square wave with a pulse duty cycle of 15-50% and an output frequency of 0.05-10Hz.

7. The mandarin fish domestication pond as described in claim 1, characterized in that: The bait fish farming frame (5) is equipped with a net bag (51), and the bait fish are farmed in the net bag (51).

Images