Hypothermic anesthesia transportation method for live Oncorhynchus mykiss

A technology of low-temperature anesthesia and transportation method, which is applied in the field of low-temperature anesthesia transportation of live spotted trout, can solve the problems of inability to guarantee hypoxia and suffocation of spotted trout, cannot reduce costs, affect economic benefits, etc., and achieves easy popularization, low cost, and improved The effect of survival

Active Publication Date: 2016-01-06
MARINE BIOLOGY INST OF SHANDONG PROVINCE +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The advantage of water truck oxygenation transportation is that the freight is relatively low, the oxygenation is sufficient, and it is convenient to observe the situation of fish at any time, but this method has great limitations
In the case of a small amount of live fish transported, the amount of water added and oxygenated by the water truck is basically the same as when transporting live fish in large quantities, and the cost cannot be reduced
In the case of a large demand for live fish, it cannot be guaranteed that the spotted trout will not suffocate due to lack of oxygen due to excessive density during transportation, resulting in low survival rate and affecting economic benefits

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0044] On a certain day in May 2014, 300 speckled trout with a specification of about 3kg were transported from the breeding base of the Breeding Research Center of Shandong Academy of Marine Biology to Yantai by using the method of the present invention, which lasted 4 hours. After arriving at the destination, 297 spotted trout survived and 3 died, with a survival rate of 99%. The specific steps are as follows:

[0045] 1. The spotted trout to be transported should be fasted for 2-3 days.

[0046] Fill the 5m×6m×0.4m reservoir with aquaculture water cooled to 2°C, leave floating ice on the water surface to keep the water temperature from rising, and use an air pump to increase oxygen until the dissolved oxygen in the water is 10mg / L. Add eugenol at a concentration of 25 mg / L to water, and stir well. Put the speckled trout that has stopped eating and weighed into ice-water mixed water containing eugenol, and the fish is rapidly cooled and anesthetized in the low-temperature w...

Embodiment 2

[0050] On a certain day in April 2015, the method of the present invention was used to transport 50 spotted trout with a specification of about 4kg from the breeding base of the Shandong Provincial Institute of Marine Biology Breeding Research Center to Jiaonan, which lasted 3.5 hours. After arriving at the destination, 50 spotted trout survived, 0 died, and the survival rate was 100%. The specific steps are as follows:

[0051] 1. Plastic foam incubator for transportation, the specifications are length: width: height: 58cm×45cm×15cm, bottom thickness 2.5cm, wall thickness 2.0cm.

[0052] The packaging bag is a double-layer plastic bag for transportation, and the specification is length: width: 65cm×45cm.

[0053] 2. The spotted trout to be transported should be fasted for 2-3 days.

[0054] 3. Fill the 1m × 1m × 2m reservoir with aquaculture water cooled to 2°C, leave floating ice on the water surface to keep the water temperature from rising, and use an air pump to increase...

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Abstract

The invention provides a hypothermic anesthesia transportation method for live Oncorhynchus mykiss, the method comprising following steps: 1) feed deprivation: food provisioning for Oncorhynchus mykiss is stopped for 2-3 days before transportation; 2) cooling and anesthesia treatment: water tanks are filled with cooled aquaculture water of 1-2 DEG C; the water temperature is maintained; anesthetic is added to the water and mixed well. The Oncorhynchus mykiss deprived of food is weighed and then put in the aquaculture water and quick cooling and anesthesia are performed. The Oncorhynchus mykiss is taken out of water surface when the activity ability of the fish is nearly exhausted. By this time, the fish bodies are in the state of hypothermic anesthesia and then they are to be encased. 3) the Oncorhynchus mykiss are transported by packing transportation or water track transportation. After arriving at a destination, The Oncorhynchus mykiss are brought back to life and the temperature of aquaculture water is gradually increased to normal level. The hypothermic anesthesia transportation method has following beneficial effects: no matter how much the transportation volume of live fish is, the transportation method can be performed with low cost, simple, flexible and easy operation; and the economic benefit can be guaranteed by high rate of survival of fish after transportation.

Description

technical field [0001] The invention belongs to the field of live fish transportation, and in particular relates to a low-temperature anesthesia transportation method suitable for live spotted trout. Background technique [0002] Speckled trout (Oncorhynchus mykiss), commonly known as noble fish, is a kind of fish in the family Salmonidae (commonly known as salmon). It is named for its whole body covered with spots. Spotted trout is a cold-water anadromous fish. It is a new species of salmon artificially bred. It has excellent traits such as stress resistance, fast growth, high temperature resistance, and wide salt. Due to the wide range of suitable temperature for this fish, the survival temperature is 0-23°C, the suitable water temperature is 8-21°C, the optimum growth water temperature is 10-18°C, and the suitable salt range is wide. It can survive within 33 days; it has strong disease resistance, fast growth, and a feed conversion rate as high as 1.1:1.0. It can grow to...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01K61/00
CPCA01K61/00Y02A40/81
Inventor 王雪潘雷李莉菅玉霞高凤祥胡发文郭文梁强步华杰
Owner MARINE BIOLOGY INST OF SHANDONG PROVINCE
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