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Artificial eel hatching box and artificial eel hatching method

A technology of artificial hatching and incubator is applied in the field of eel breeding to achieve the effect of reducing placement requirements and simple operation

Inactive Publication Date: 2014-08-06
YANGTZE RIVER FISHERIES RES INST CHINESE ACAD OF FISHERY SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The purpose of the present invention is to overcome the defects of the prior art, provide an artificial hatching box for rice field eel, and also provide a method for artificial hatching of rice field eel, which effectively solves the problems of water level control, moisture retention, and embryonic development in large-scale artificial hatching of rice field eel and other problems, greatly improving the degree of large-scale artificial hatching of rice field eels, and increasing the hatching rate in large-scale hatching

Method used

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  • Artificial eel hatching box and artificial eel hatching method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0032] About 1000 fertilized eggs of rice field eels were hatched under laboratory conditions.

[0033] Step 1. Place an incubator flat on the experimental bench, and connect the water outlet to the sink.

[0034] Step 2. Block the water outlet of the incubator and add water to the incubator so that the sponge can float on the water.

[0035] Step 3. Put 1,000 fertilized eggs of rice field eel on the sponge, and gently shake the incubator horizontally to spread the eggs on the sponge.

[0036] Step 4. Open the water outlet and let the water flow out naturally.

[0037] Step 5. Under the water temperature condition of 28°C, the whole hatching process can be completed in 9 days. Twice a day, add water to the incubator with a watering can. The amount of water added is beneficial to infiltrate the eel eggs.

[0038] Step 6. After the hatching is completed, take the sponge and the seedlings out of the incubator, put the sponge upside down on the water surface of the seedling cu...

Embodiment example 2

[0041] About 50,000 fertilized eggs of rice field eels were hatched under simple awning conditions.

[0042] Step 1. Build a simple awning. Find a flat open space of 3-5 square meters by the pool, and build a simple awning with bamboo poles, iron wires, and sunshade nets to ensure that the sun does not directly shine into the awning.

[0043] Step 2. Put 30~50 incubators flat in the awning.

[0044] Step 3. Block the water outlet of the incubator and add water to the incubator so that the sponge can float on the water.

[0045] Step 4. Put 1000~1500 grains of fertilized rice field eel eggs on the sponge in each box, and gently shake the incubator horizontally to spread the eggs on the sponge.

[0046] Step 5. Open the water outlet and let the water flow out naturally.

[0047] Step 6. Under the condition of 28°C water temperature, the whole hatching process can be completed in 9 days. Twice a day, add water to the incubator with a watering can. The amount of water added i...

Embodiment example 3

[0051] About 1 million fertilized eggs of rice field eels are hatched under the conditions of the hatching room.

[0052] Step 1. The area of ​​the hatching room is about 150 square meters. Spraying equipment is installed in the hatching room. Each nozzle can manage an area of ​​3 to 5 square meters.

[0053] Step 2. Place 800~1000 incubators flat on the shelves of the incubator.

[0054] Step 3. Block the water outlet of the incubator and add water to the incubator so that the sponge can float on the water.

[0055] Step 4. Put 1000~1500 grains of fertilized rice field eel eggs on the sponge in each box, and gently shake the incubator horizontally to spread the eggs on the sponge.

[0056] Step 5. Open the water outlet and let the water flow out naturally.

[0057] Step 6. Under the condition of 28°C water temperature, the whole hatching process can be completed in 9 days. Twice a day, turn on the nozzle and add water to the incubator. The amount of water added is benefic...

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Abstract

The invention discloses an artificial eel hatching box which comprises a box body and a sponge placed at the bottom of the box body. A water outlet is formed in the lateral wall of the box body, and the horizontal position of the water outlet is lower than the upper plane position of the sponge. The invention further discloses an artificial eel hatching method. The method includes the steps that the hatching box is horizontally placed at the position which cannot be radiated by sunlight directly; the water outlet of the latching box is blocked, and water is added into the hatching box; fertilized eggs of eels are placed on the sponge, and the box body is waggled horizontally to enable the eggs to be laid on the sponge horizontally; the water outlet is opened to enable the water to flow out naturally; the whole hatching process is completed under the condition of 28 DEG C water temperature. Water is added in the hatching box in a spraying mode twice every day. The sponge and fries are taken out from the hatching box together, and the sponge is placed on the water surface of a fry breeding box in an inverted mode. According to the artificial eel hatching box and the artificial eel hatching method, the height of the water level for fertilized egg hatching can be limited strictly; the placement requirements for the hatching box are greatly reduced; even if the fertilized eggs are completely exposed to the air, the hatching temperature can be guaranteed, and operation is simple and rapid.

Description

technical field [0001] The invention relates to the field of rice field eel breeding, in particular to a rice field eel artificial hatching box, and also relates to a rice field eel artificial hatching method, which is suitable for rice field eel cultivation. Background technique [0002] Field eel (Monopterus albus) is a subtropical fish, also known as eel, luoyu, field eel, long fish, yellow ginseng, scaleless son, field ginseng, etc., belonging to Synbranchia and Synbranchidae; There is only one species in the world, namely rice field eel. Widely distributed in Japan, Thailand, Indonesia, Philippines, Malaysia, India, Japan, North Korea and my country in Southeast Asia, it is distributed in my country except the Qinghai-Tibet Plateau, especially in the middle and lower reaches of the Yangtze River, where the distribution density is large and the output is high. important economic fish. [0003] After the eel lays eggs in the natural state, the male fish will continuously...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01K61/00
CPCY02A40/81
Inventor 柳凌朱祥云张洁明梁宏伟郭峰
Owner YANGTZE RIVER FISHERIES RES INST CHINESE ACAD OF FISHERY SCI
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