Artificial breeding method for tuba false fusus

An artificial, thin-angled technology, which is applied in fish farming, application, climate change adaptation, etc., can solve the problems of insufficient knowledge of ecology and reproductive habits, and the number of artificial seedlings that have not yet been bred, so as to shorten the cycle of artificial seedlings and increase production. The effect of low cost and convenient operation

Inactive Publication Date: 2011-01-19
EAST CHINA SEA FISHERIES RES INST CHINESE ACAD OF FISHERY SCI
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Problems solved by technology

In China, Xu Zhangcheng, Feng Yongqin, Guo Bingjian, etc. have carried out experimental research on artificial seedling breeding of stylus snails, but...

Method used

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Embodiment 1

[0024] 1. Harvesting and screening of parent snails

[0025] The growth period of stylus is long, and its reproductive cycle and age of sexual maturity are not yet known. Harvesting parent snails for intensive cultivation during the breeding season in natural sea areas can not only shorten the artificial cultivation time of the parents, but also save a lot of seedling raising costs. The present invention samples and surveys regularly in the sea area every month, through the dissection of a large number of samples, as well as tissue sections and microscopic observation. Understand and master the development of gonads; during the peak period of gonad development, increase sampling once a month to obtain fertilized oocysts in natural sea areas.

[0026] The survey confirmed that the breeding season of stylus snails in the coast of Hainan is from November to April of the next year, the peak period is from December of the current year to January of the next year, and the seawater ...

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Abstract

The invention relates to an artificial breeding method for tuba false fusus, which comprises the following steps of: on the basis of investigating tuba false fusus resources along the coast of Hainan and reproductive biology, finding out the thriving propagation season of the tuba false fusus, and catching parent tuba false fusus in the season; putting healthy adult tuba false fusus into a nursery pond for intensified breeding, and optimizing breeding conditions such as water flow, illumination, water temperature, and salinity; after the tuba false fusus is mated and lays eggs, cutting off an egg capsule, and transferring to an incubation basket for flowing water breeding; after young tuba false fusus is hatched, transferring to a breeding basket, feeding concentrated chlamydomonas in first 4 to 6 days, and then feeding fresh clam and Sinonovacula constricta; when the young tuba false fusus grows to 2.0-2.5cm, dividing the young tuba false fusus; and when the young uba false fusus grows to about 4.0cm in the breeding basket, entering a culture stage. Based on the reproductive biological process of the tuba false fusus, the method realizes indoor artificial breeding of the tuba false fusus, shortens the artificial breeding cycle, is suitable for mass production, and has the advantages of simpleness, practicability, convenient operation, low production cost, and high survival rate of the bred tuba false fusus.

Description

technical field [0001] The invention belongs to a seedling breeding technology for aquaculture, in particular to an artificial seedling raising method for snails. Background technique [0002] Hemifusus termatamus, English name Tuba false fusus, belongs to Mollusca, Gastropoda, Neogastropoda, Buccinacea, Melongenidae ). The snail-shaped snail is relatively large, with a shell length of up to 30 cm and a weight of more than 1300 grams. The meat of the gastropod is thick, nutritious and delicious. It has always been a high-end sea treasure, and the market price has always been high. Snails are mainly distributed in the sandy bottom of the southeast coast of my country with a water depth of more than 10 meters to more than 70 meters. The growth period is long, and the resources are not many, and they need to be caught by trawl nets. With the development of the economy and the improvement of living standards, people's demand for stylus snails continues to increase, and the am...

Claims

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Application Information

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IPC IPC(8): A01K61/00
CPCY02A40/81
Inventor 唐保军
Owner EAST CHINA SEA FISHERIES RES INST CHINESE ACAD OF FISHERY SCI
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