Waterless keep-alive transportation method for shrimps

A technology of water-free preservation and preservation agent, which is applied in fish farming, application, climate change adaptation, etc., can solve the problems of unstable survival rate of shrimp and many influencing factors, and achieve easy breeding, alleviating stress response, The effect of maintaining the health of shrimp

Active Publication Date: 2019-11-05
ZHEJIANG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] In order to overcome the problems of many influencing factors and unstable shrimp survival rate existing in the existing shrimp anhydrous transportation technology, the present invention provides

Method used

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  • Waterless keep-alive transportation method for shrimps

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Effect test

Embodiment 1

[0032] (1) Preparation of mixed mucus of loach and rice field eel: fresh loach and rice field eel with a mass ratio of 1:2 are washed and soaked in distilled water. Remove with a strainer, and refrigerate the remaining soaking liquid for later use;

[0033] (2) Temporary raising: the Chinese prawns after catching were stopped eating for 12 hours in clear water with a salinity of 35g / L and a water temperature of 18°C, and continuously aerated with an oxygenator;

[0034] (3) Cold shock: Put an appropriate amount of Chinese prawns in a basket, immerse them in the mixed mucus of fresh loach and rice field eel that has been pre-cooled to 13°C, and immerse for 3 minutes until all the Chinese prawns lie on their sides at the bottom of the water, and their feet move slowly and regularly to enter shock state;

[0035] (4) Packing: pull out the Chinese prawns of shock and pack into a plastic bag, then fill with oxygen and seal, and the volume concentration of oxygen in the bag is 90%;...

Embodiment 2

[0039] (1) Prepare the mixed mucus of loach and rice field eel: the fresh loach and rice field eel with a mass ratio of 1:1 are washed and soaked in distilled water. Remove with a strainer, and refrigerate the remaining soaking liquid for later use;

[0040] (2) Temporary cultivation: the caught Litopenaeus vannamei was temporarily raised in clear water with a salinity of 30g / L and a water temperature of 20°C for 24 hours, and was continuously aerated with an oxygenator;

[0041] (3) Cold shock: Put an appropriate amount of Litopenaeus vannamei into a basket, immerse in fresh loach and eel mixed with mucus pre-cooled to 15°C for 2.5 minutes, until all Litopenaeus vannamei lie on their sides and their feet move slowly and regularly. Exercise, enter a state of shock;

[0042] (4) Packing: Pull out the Shocked Litopenaeus vannamei and put it into a plastic bag, then fill it with oxygen and seal it, the volume concentration of oxygen in the bag is 80%;

[0043] (5) Transportatio...

Embodiment 3

[0046] (1) Prepare the mixed mucus of loach and rice field eel: the fresh loach and rice field eel with a mass ratio of 1:0.5 are washed and infiltrated with distilled water. Remove with a strainer, and refrigerate the remaining soaking liquid for later use;

[0047] (2) The prawns after catching were stopped eating for 14 hours in clear water with a salinity of 40g / L and a water temperature of 16°C, and continuously aerated with an oxygenator;

[0048] (3) Put an appropriate amount of Penaeus monodon in a basket, and immerse it in the mixed mucus of fresh loach and rice field eel pre-cooled to 6°C for 2 minutes, until all the Penaeus monodon lie on their side on the bottom of the water, and their feet move slowly and regularly, entering a state of shock;

[0049] (4) Pull out the Shocked Penaeus monodon and pack into a plastic bag, then fill with oxygen and seal, the volume concentration of oxygen in the bag is 70%;

[0050] (5) Anhydrous transportation is simulated in an ar...

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Abstract

The invention relates to the technical field of keep-alive transportation of shrimps, and provides a waterless keep-alive transportation method for shrimps in order to solve the problems that an existing waterless shrimp transportation technology has many influencing factors and unstable shrimp survival rate. The method comprises the following steps of (1) temporary rearing; (2) precooling, wherein a keep-alive agent is precooled to 6-15 DEG C, and the keep-alive agent is mixed mucus of misgurnus anguillicaudatus and monopterus albus; (3) cold shock, wherein the shrimps are soaked in the precooled keep-alive agent until the shrimps enter shock states; (4) packaging, wherein the shrimps are packaged in a packaging bag, and the packaging bag is sealed after being filled with oxygen; (5) transportation; (6) recovery. The waterless keep-alive transportation method for the shrimps can effectively relieve the stress response of the shrimps during transportation, improve the capability to tolerate hypoxia, maintain the health of the shrimps, and effectively increase the survival rate of waterless transportation, and the survival rate after the shrimps are transported for 15 hours can reach 91%.

Description

technical field [0001] The invention relates to the technical field of shrimp preservation transportation, in particular to a method for waterless shrimp preservation transportation based on loach and eel mucus. Background technique [0002] Litopenaeus vannamei, Penaeus monodon, Penaeus sinensis and other shrimps are rich in nutrition and delicious in quality, and are important farmed shrimps in my country. Among them, Litopenaeus vannamei has the largest output. In 2016, the total aquaculture volume of Litopenaeus vannamei in my country exceeded 1.67 million tons, including 932,000 tons in mariculture and 740,000 tons in freshwater, accounting for 50.6% of the total cultured shrimp. The main production areas of Litopenaeus vannamei are located in Guangdong, Guangxi and Jiangsu. The geographical span is large, and the transportation and preservation of aquatic products are difficult. [0003] At present, the transportation method of fresh and live aquatic products such as ...

Claims

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Application Information

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IPC IPC(8): A01K61/59
CPCA01K61/59Y02A40/81
Inventor 茅林春查蒙管维良
Owner ZHEJIANG UNIV
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