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Live transportation method for multiplication and release of short octopus seedlings

A live transport, multiplication and release technology, applied in the fields of application, fish farming, animal husbandry, etc., can solve the problems of decreased survival rate of short octopus seedlings, inconvenient transportation, exhaustion of natural resources, etc., to reduce the probability of cannibalism, reduce the Mutual cannibalism and the effect of improving the survival rate

Active Publication Date: 2020-04-14
日照市海洋与渔业研究所
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, in recent years, with the continuous growth of market demand, the fishing intensity of short octopus has been continuously increased, which has caused the depletion of natural resources.
In order to protect the natural resources and germplasm genetic diversity of the short octopus, some scientific research institutes have begun to conduct research on the artificial breeding of the short octopus. In our actual experiments, we found that because the short octopus has two rows of suckers, it is easy to adsorb on the On the container wall, it brings great inconvenience to the transportation; at the same time, due to the serious phenomenon of cannibalism among the short octopus seedlings, the survival rate of the short octopus seedlings is greatly reduced

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0022] Step 1, medium preparation: use rice husk as the medium. Select rice husks newly produced that year with a length of 7mm-10mm, a width of 3mm-5mm, a thickness of 25-30um, and a golden or yellowish-brown color as the medium; wash the rice husks with seawater for 3-5 times, and use salinity Soak the rice husk in 29‰~31‰ seawater for 22h-24h to make the rice husk fully absorb water; then filter the seawater in the rice husk to make sure there is no water dripping from the rice husk, and then use 20×10 -6 Soak the rice husks with potassium permanganate for 20 minutes, rinse the rice husks 3-5 times with seawater with a salinity of 29‰~31‰, and set aside.

[0023] Step 2, prepare with water. Use a filter sand tank to remove suspended particles in seawater, put the seawater from which suspended particles have been removed into a clean storage tank, and then use a 120-mesh nano air stone to oxygenate to saturation, and adjust the seawater temperature to 20°C to 23°C. Seawate...

Embodiment 2

[0028] Step 1, medium preparation: use rice husk as the medium. Select rice husks newly produced in that year with a length of 7mm-10mm, a width of 3mm-5mm, and a thickness of 25-30um, with a golden or yellowish-brown color as the filling medium for transporting seawater; wash the rice husks with seawater that removes suspended particles for 3 -5 times, use seawater with a salinity of 29‰~31‰ to soak the rice husk for 24 hours, so that the rice husk can fully absorb water; ×10 -6 Soak the rice husks with potassium permanganate for 20 minutes, rinse the rice husks 3-5 times with seawater with a salinity of 29‰~31‰, and set aside.

[0029] Step 2, prepare with water. Use a filter sand tank to remove suspended particles in seawater, put the seawater from which suspended particles have been removed into a clean storage tank, and then use a 120-mesh nano air stone to oxygenate to saturation, and adjust the temperature of seawater to maintain it at 20°C to 23°C, of ​​which The be...

Embodiment 3

[0036] 120,000 octopus seedlings with an average carcass length of about 1.2cm were transported from the breeding base on the coast of the Yellow Sea in China to the adjacent 68km sea area for proliferation and release. The survival rate of octopus seedlings was as high as 98.5%. The probability is only 1.5%.

[0037] Step 1, medium preparation: use rice husk as the medium. Select 600kg of rice husks and wash them with seawater for 3-5 times, soak the rice husks in seawater with a salinity of 29‰~31‰ for 24 hours to make the rice husks fully absorb water; then use a 20-mesh screen to filter the seawater in the rice husks, Rice husk drip-free, again using 20×10 -6 Soak the rice husks with potassium permanganate for 20 minutes, rinse the rice husks 3-5 times with seawater with a salinity of 29‰~31‰, and set aside.

[0038] Step 2, prepare with water. Use a filter sand tank to remove suspended particles in seawater, put the seawater from which suspended particles have been rem...

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PUM

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Abstract

The invention discloses a living body transportation method of Octopusochellatus seedling breeding and releasing, and relates to the technical field of the living body transportation of the marine product culture. Rice hulls are used as a substrate, the rice hulls are softer, and cannot hurt the Octopusochellatus young seedlings in the shaking process. The rice hulls can be suspended in the seawater so as to form countless enclosed spaces, so the probability of cannibalism of the Octopusochellatus young seedlings is reduced. The use water for raising and transporting the Octopusochellatus young seedlings is the seawater in which suspended particles are removed, and the used seawater for raising and transporting the Octopusochellatus young seedlings is the same as the seawater of the natural spawning site sea area of Octopusochellatus seedling breeding and releasing, so the Octopusochellatus young seedlings can adapt the natural sea area environment as soon as possible, the effect of the environmental change to the survival rate of the Octopusochellatus seedlings is reduced, and the survival rate of the seedlings is improved. The method has the advantages of no anesthetics, no food quality and safety risk, no gradient cooling, no effect to the survival rate of the Octopusochellatus young seedlings, cheap cost, security and environmental protection, and high survival rate of the seedlings.

Description

technical field [0001] The invention relates to the technical field of living body transportation for mariculture, in particular to a method for living body transportation of short octopus seed proliferation and release. Background technique [0002] Short octopus, commonly known as rice octopus, sitting octopus, short-legged octopus, wind octopus, and short-clawed octopus, is mainly distributed in the Bohai Sea, the Yellow Sea and the northern part of the East China Sea. Its meat is delicious, rich in arginine, and has a short life cycle and rapid growth. High nutritional value and economic value, deeply loved by people. Every year around the Ching Ming Festival, the short octopus will drift with the current to the coastal waters to lay eggs and mate, and form a fishing season. However, in recent years, with the continuous growth of market demand, the fishing intensity of short octopus has been continuously increased, which has caused the depletion of natural resources. I...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A01K63/02
CPCA01K63/02
Inventor 朱文博陈令明郭见军刘峰李达马腾
Owner 日照市海洋与渔业研究所
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