Method for waterlessly transporting tilapia mossambica in summer

A technology for tilapia and pools, which is applied in fish farming, climate change adaptation, and additional food elements, etc., can solve problems such as strong stress response of fish, achieve the goals of saving transportation costs, enriching transportation methods, and improving transportation efficiency Effect

Active Publication Date: 2016-09-28
GUANGXI UNIV
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Problems solved by technology

However, carbon dioxide aqueous solution is li

Method used

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  • Method for waterlessly transporting tilapia mossambica in summer

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Effect test

Embodiment 1

[0024] 1) Temporary breeding: in summer, catch fresh tilapias at a temperature of about 30°C, select vigorous tilapias with a body weight of 500-700g, and keep them in the temporary storage pool for 3 hours; The ratio of fish to water in the medium is 1:3, the water temperature is normal temperature, the concentration of L-ascorbic acid polyphosphate in the water is 30mg / L, and oxygen is continuously introduced during the temporary breeding process;

[0025] 2) Low-temperature acclimatization: Add crushed ice cubes to the holding pool to lower the water temperature. The cooling process is divided into three stages, above 25°C, 25-20°C and 20-13°C, and the corresponding cooling rates are 5°C / h, 3.3°C / h and 2.5°C / h. When the water temperature drops to 13°C, low-temperature acclimatization ends, and oxygen is continuously introduced during the acclimation process;

[0026] 3) Preparation of carbon dioxide anesthesia solution: take another pool as the anesthesia pool, add clear w...

Embodiment 2

[0032] 1) Temporary breeding: in summer, catch fresh tilapias at a temperature of about 30°C, select vigorous tilapias with a body weight of 500-700g, and keep them in the temporary storage pool for 3 hours; The ratio of fish to water in the medium is 1:3, the water temperature is normal temperature, the concentration of L-ascorbic acid polyphosphate in the water is 40mg / L, and oxygen is continuously introduced during the temporary breeding process;

[0033] Steps 1) to 6) are basically the same as in Embodiment 1, and will not be repeated here.

[0034] Result;: After 8 hours of transport, the tilapia were still alive.

Embodiment 3

[0036] 1) Temporary breeding: in summer, catch fresh tilapias at a temperature of about 30°C, select vigorous tilapias with a body weight of 500-700g, and keep them in the temporary storage pool for 3 hours; The ratio of fish to water in the medium is 1:3, the concentration of L-ascorbic acid polyphosphate in the water is 50mg / L, the water temperature is 30°C, and oxygen is continuously introduced during the temporary breeding process;

[0037] Steps 1) to 6) are basically the same as in Embodiment 1, and will not be repeated here.

[0038] The result; after 8 hours of transport, the tilapia were still alive.

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Abstract

The invention discloses a method for waterlessly transporting tilapia mossambica in summer. The fresh and alive tilapia mosambica fished in summer is subjected to temporary culture, vitamin C supplementary, low-temperature acclimation and carbon dioxide narcosis and then transported without the water under the oxygenation and bag closure conditions. The method is a jointly used effective combination mode which is obtained after the defects of the methods such as fish immunity ability enhancing, fish metabolism speed decreasing, fish stress reaction reducing and oxygen intake increasing and the like on improvement of the waterless tilapia mossambica transportation efficiency and the fish quality are integrated. Research shows that the method has the advantages that the process is simple, the cost is low, the efficiency is high, the survival time of the fresh and alive tilapia mossambica in the transportation process is long, and the quality safety of the tilapia mossambica is not damaged.

Description

technical field [0001] The invention belongs to the field of aquatic product transportation, in particular to a method for transporting tilapia without water in summer. Background technique [0002] Tilapia likes high temperature, so its main production area and consumption area are in southern China, and live fish is its main form of consumption and processing. The summer temperature in southern China is high and lasts for a long time, and the fish's metabolic rate is fast at high temperature, which accelerates the consumption rate of oxygen and the emission rate of carbon dioxide and ammonia nitrogen during transportation. Inhale oxygen, and the transportation time should not be too long, because when the concentration of carbon dioxide or ammonia nitrogen in the water reaches its lethal concentration, tilapia will be poisoned and die. When it is necessary to transport tilapia for a long time, in order to dilute the concentration of harmful substances such as carbon dioxi...

Claims

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Application Information

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IPC IPC(8): A01K61/00A23K50/80A23K20/174
CPCA01K61/00Y02A40/81
Inventor 陈德慰管维良
Owner GUANGXI UNIV
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