A kind of long octopus fertilized egg egg collector and its application

Abstract

The invention discloses an octopus minor oosperm collector and a large-scale octopus minor oosperm collecting and incubating method. A PVC straight round tube serves as the place for parent spawning, one end of the PVC straight round tube is sealed with a mesh sheet and a rubber band to form a sealed end, multiple oosperm collectors are arranged at the sealed end and the unsealed end alternately and are bound with a hemp rope into a series connection structure, and the oosperm collectors serve as both a parent octopus minor oosperm collector and a shelter. After a female octopus minor and a male octopus minor are placed into a spawning pond, the female octopus minor spawns on the wall of the PVC straight round tube, and the unsealed ends of the octopus minor oosperm collectors are sealed with the mesh sheet after spawning so that the oosperms can be collected; then the oosperms are moved to an incubation pond for incubation, and the mesh sheet is replaced when embryonic development of the oosperms reaches the second overturning period. One end of each oosperm collector is sealed with the mesh sheet to allow the parent to hide inside, so that only the other end needs to be watched over, physical power is saved, the parent is effectively isolated, and in this way, the spawning parent octopus minor is protected from disturbance of other parents and prevented from abandoning eggs after being disturbed.

Description

technical field [0001] The invention relates to a method for collecting and hatching fertilized eggs of long octopuses and an egg picker used therein, and belongs to the technical field of artificial breeding of long octopuses. Background technique [0002] Octopusminor belongs to the phylum Mollusca, class Cephalopoda, order Octopus, family Octopus, genus Octopus, and is commonly known as octopus, long octopus, tide-watching or horse octopus. Long octopus is widely distributed in the Bohai Sea, Yellow Sea, East China Sea, South China Sea and Japanese archipelago waters. my country's coastal production is relatively large. It is delicious in taste and rich in nutritional value. It is mainly exported to South Korea and Japan. It is an important economic octopus in northern my country. The life cycle of long octopus is one year, and its breeding peak in the north is from April to July. [0003] At present, because the source of seed is completely dependent on natural fishing,...

AI Technical Summary

Problems solved by technology

However, because octopus individuals have the living habit of fighting each other, the fighting between the parents causes the physical strength of the parents to be greatly reduced and damaged, causing a large number of deaths of the parents before laying eggs, resulting in production loss; The gathering of two female octopuses or even several female octopuses in the ovipositor will easily cause the parent body that has laid eggs to fall off and die; due to the loss of the care of the parent body, the fertilized eggs are prone to a large number of moldy, falling off and death during the hatching process

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