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Method for waterless keep-alive transportation by narcotizing tilapia mossambica with low-concentration carbon dioxide

A carbon dioxide and water-free preservation technology, which is applied in the field of tilapia transportation without water, can solve the problems of high cost, large transport water volume, and small fish load, so as to save transportation costs and improve transportation efficiency Effect

Inactive Publication Date: 2014-12-24
GUANGDONG OCEAN UNIVERSITY +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] At present, some fresh and live fish transportation methods mainly use water transportation, but water transportation has many problems such as large volume of transport water body, small fish load, high metabolic intensity of fish body, large oxygen supply, difficult water quality treatment, and high cost. question

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0017] A method for anhydrous transportation of tilapia anesthetized with carbon dioxide, comprising the following steps:

[0018] (1) Select healthy tilapias with no trauma and complete scales, and stop feeding the selected tilapias for 24 hours;

[0019] (2) Inject fresh water into the glass aquarium, adjust the temperature of the water in the aquarium to 25°C, introduce carbon dioxide and oxygen into the water, and use a carbon dioxide gas-sensing electrode to measure the concentration of carbon dioxide in the aqueous solution, by adjusting the size of the carbon dioxide and oxygen flow and Aeration time to obtain an aqueous solution with a carbon dioxide concentration of 0.27 mg / L;

[0020] (3) Use fishing nets to fish out the temporarily reared tilapia from the breeding pond and put them into an anesthetized fish tank for 13 minutes;

[0021] (4) Take the anesthetized tilapia out of the anesthesia bathtub and put it into the oxygenation bag, fill the oxygenation bag with...

Embodiment 2

[0024] A method for anhydrous transportation of tilapia anesthetized with carbon dioxide, comprising the following steps:

[0025] (1) Select healthy tilapias with no trauma and complete scales, and stop feeding the selected tilapias for 20 hours;

[0026] (2) Inject fresh water into the glass aquarium, adjust the temperature of the water in the aquarium to 25°C, introduce carbon dioxide and oxygen into the water, and use a carbon dioxide gas-sensing electrode to measure the concentration of carbon dioxide in the aqueous solution, by adjusting the size of the carbon dioxide and oxygen flow and Aeration time to obtain an aqueous solution with a carbon dioxide concentration of 0.41 mg / L;

[0027] (3) Use fishing nets to fish out the temporarily reared tilapia from the breeding pond and put them into an anesthetized fish tank for 10 minutes;

[0028] (4) Take the anesthetized tilapia out of the anesthesia bathtub and put it into the oxygenation bag, fill the oxygenation bag with...

Embodiment 3

[0031] A method for anhydrous transportation of tilapia anesthetized with carbon dioxide, comprising the following steps:

[0032] (1) Select healthy tilapias with no trauma and complete scales, and stop feeding the selected tilapias for 22 hours;

[0033] (2) Inject fresh water into the glass fish tank, adjust the temperature of the water in the tank to 25°C, and pass carbon dioxide gas and oxygen into the water. During this period, use a carbon dioxide gas sensor to measure the concentration of carbon dioxide in the aqueous solution. By adjusting the size of the carbon dioxide and oxygen flow and aeration time to obtain an aqueous solution with a carbon dioxide concentration of 0.60 mg / L;

[0034] (3) Use fishing nets to fish out the temporarily reared tilapia from the breeding pond and put them into an anesthetized fish tank for 7 minutes;

[0035] (4) Take the anesthetized tilapia out of the anesthesia bathtub and put it into the oxygenation bag, fill the oxygenation bag ...

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Abstract

The invention relates to a method for waterless keep-alive transportation by narcotizing tilapia mossambica with low-concentration carbon dioxide and belongs to the technical field of living fish waterless transportation. According to the method, the carbon dioxide serves as the anesthetic of the tilapia mossambica, the influences of the concentration of the carbon dioxide, the temperature of narcotizing liquid, the narcotizing time, the keep-alive temperature, oxygenation and other parameters on the waterless keep-alive time of the tilapia mossambica are studied, and the optimal tilapia mossambica waterless keep-alive transportation parameters are determined. After the method is applied, the tilapia mossambica can be kept alive for four to five hours, and the survival rate is 100 percent. According to the method, the transportation efficiency is improved, the transportation cost is reduced, and meanwhile the transported tilapia mossambica does not have the potential safety hazard of medicine residues.

Description

technical field [0001] The invention relates to a water-free transport method for tilapia, in particular to a water-free transport method for tilapia anesthetized with low-concentration carbon dioxide, and belongs to the technical field of live fish transport without water. Background technique [0002] The spines of the tilapia dorsal fin are well developed. When stimulated by the outside world, the hard rays on the back of the tilapia will stand up, which is aggressive and easy to cause harm to humans and fish, which is not conducive to the actual operations of tilapia transportation and egg harvesting. Because tilapia is a tropical fish, under the influence of climate and temperature, the farming of tilapia in mainland China shows a phenomenon of more in the south and less in the north. At present, in addition to fresh sales of tilapia products in my country, mainly frozen whole fish and frozen tilapia fillets are processed, and the number of fresh fish fillets is relativ...

Claims

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Application Information

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IPC IPC(8): A01K61/00
CPCY02A40/81
Inventor 秦小明周翠平白洋钟赛意谌素华班大金
Owner GUANGDONG OCEAN UNIVERSITY
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