CN103535296A

CN103535296A - Method for cultivating young rapana venosa in rapana venosa artificial breeding

Info

Publication number: CN103535296A
Application number: CN201310436703.4A
Authority: CN
Inventors: 于瑞海; 李琪; 刘剑
Original assignee: Ocean University of China
Current assignee: Ocean University of China
Priority date: 2013-09-12
Filing date: 2013-09-12
Publication date: 2014-01-29
Anticipated expiration: 2033-09-12
Also published as: CN103535296B

Abstract

The invention relates to a method for cultivating young rapana venosa in rapana venosa artificial breeding. The method is characterized in that firstly, after rapana venosa larvae with the size larger than 1200 micrometers and to be metamorphosed through attachment are collected, then placed in a container containing 10L-12L of a 0.2%-0.3% KCI seawater solution and steeped for 6 hours to 8 hours, so that the rapana venosa larvae is directly metamorphosed without attachment and the young rapana venosa is obtained; secondly, the young rapana venosa is placed in a floating net cage with the length of 5m-6m, the width of 2m-3m and the height of 0.3m-0.4m and made of a polyethylene screen with 60 meshes to 80 meshes, the size of the floating net cage is determined according to the size of a breeding pool, and the four sides of the net cage have the buoyancy force; thirdly, the rapana venosa is fed on oyster paste twice to three times every day, the water level is kept low when feeding is conducted, the floating net cage is sunk to the bottom of the pool, bait sunk to the bottom of the net cage and attached to a base is eaten by the young metamorphosed rapana venosa, and after feeding is conducted for 3 hours to 4 hours, water is added, the water level rises, the net cage is floated, the bottom of the pool is absorbed, and therefore feces and the residual bait remaining on the bottom of the pool are thoroughly cleaned. According to the method for cultivating the young rapana venosa in rapana venosa artificial breeding, the problems that according to a method for indoor rapana venosa breeding, the use ratio of the fed carnivorous oyster paste bait is low and water is prone to pollution are solved and due to the fact that the residual bait and the feces are cleaned in time, water is not polluted, the young rapana venosa lives in water with high quality from beginning to end, the survival rate of the young rapana venosa is high, the breeding amount is improved by over 60%, and the cultivated young rapana venosa is strong.

Description

The breeding method of young spiral shell in the red spiral shell artificial breeding of a kind of arteries and veins

Technical field

The present invention relates to the method for the red spiral shell artificial breeding of a kind of arteries and veins, particularly relate to the breeding method of young spiral shell in the red spiral shell artificial breeding of a kind of arteries and veins.

Background technology

The red spiral shell of arteries and veins (Rapana Venosa) claim again red spiral shell, is the peculiar economic shellfish of living in coastal zone along the Huanghai Sea and the Bohai Sea, and foot is loose especially, and Fresh & Tender in Texture fertile, nutritious, its aquaculture has a extensive future.Because the red spiral shell of arteries and veins has cultivation fast growth, the culture-cycle is short, and premunition is strong, and survival rate is high, the advantage of remarkable in economical benefits, and the continuous expansion of its aquaculture scale, therefore, also more and more to the demand of seed.Because the red spiral shell of arteries and veins is carnivorous shellfish, after young spiral shell attached plate, be to take carnivorous bait as main, thereby the conversion of the bait after attached plate is the bottleneck that the young spiral shell of the red spiral shell of arteries and veins is cultivated, therefore, the red spiral shell artificial breeding of arteries and veins output of seedling is extremely low, does not reach the level of production, can not meet the demand of cultivation unit to seed, for the young spiral shell of the red spiral shell of arteries and veins, cultivate this technical barrier, developing a kind of new breeding method is the key that solves its difficult problem.At present, it is mainly after adopting polyethylene corrugated plate to adhere to as adherance that the young spiral shell of the red spiral shell of arteries and veins is cultivated, the shellfish meat gruel of regularly throwing something and feeding, the young spiral shell that makes to be attached on corrugated plating is difficult to ingest, bait utilization is lower, very easily cause water quality deterioration at the bottom of pond, cause young spiral shell mortality, cannot reach the level of growing seedlings of producing.

Summary of the invention

The breeding method that the object of this invention is to provide young spiral shell in the red spiral shell artificial breeding of a kind of arteries and veins, can overcome the above-mentioned shortcoming of prior art.

The breeding method of young spiral shell in the red spiral shell artificial breeding of a kind of arteries and veins, it is characterized in that first wanting settlement and metamorphosis, size is after the red spiral shell young of more than 1200 microns arteries and veins is collected, put into the container that 10-12 rises the KCI sea water solution that contains 2 ‰-3 ‰, soak 6-8 hour, make its non-cohesive direct metamorphosis become young spiral shell, then young spiral shell is put into 60-80 order polyethylene screen cloth and done growth 5--6 rice, wide 2-3 rice, in the floating net cage of high 0.3-0.4 rice, (according to nursery pond size, determine), there is buoyancy on four limits of net cage, throw something and feed every day oyster meat gruel 2-3 time, while throwing something and feeding, keep low water level, at the bottom of floating net cage is sunken to pond, at the bottom of abnormal young spiral shell is ingested and is sunken to case and the bait on adherance, bait throwing in finishes 3-4 hour, adding water extraction high water level net cage floats again, inhale ight soil and residual bait at the bottom of end removing remains in pond.

Breeding method of the present invention can overcome throws something and feeds in the red spiral shell indoor raising of seedling of arteries and veins that carnivorous oyster meat gruel bait utilization is low, the problem of easy polluted water, because residual bait ight soil can be removed in time, polluted water not, make young spiral shell all the time in the water quality in high-quality, young spiral shell survival rate is high, output of seedling can improve more than 60%, and the seed of production is healthy and strong.

accompanying drawing explanation

Accompanying drawing is floating net cage structural representation of the present invention.

Embodiment

The breeding method of young spiral shell in the red spiral shell artificial breeding of a kind of arteries and veins, it is characterized in that first wanting settlement and metamorphosis, size is after the red spiral shell young of more than 1200 microns arteries and veins collects, put into the container that 10-12 rises the KCI sea water solution that contains 2 ‰-3 ‰, soak 6-8 hour, make its non-cohesive direct metamorphosis become young spiral shell, then young spiral shell is put into 60-80 order polyethylene screen cloth and done growth 5--6 rice, wide 2-3 rice, in the floating net cage of high 0.3-0.4 rice, (according to nursery pond size, determine), there is buoyancy on four limits of net cage, throw something and feed every day oyster meat gruel 2-3 time, while throwing something and feeding, keep low water level, at the bottom of floating net cage is sunken to pond, at the bottom of abnormal young spiral shell is ingested and is sunken to case and the bait on adherance, bait throwing in finished after 3-4 hour, adding the high water level of cultivating of water extraction floats by net cage again, inhale in time ight soil and residual bait at the bottom of end removing remains in pond.

Breeding method of the present invention can overcome throws something and feeds in the red spiral shell indoor raising of seedling of arteries and veins that carnivorous oyster meat gruel bait utilization is low, the problem of easy polluted water, residual bait, ight soil can be removed in time, polluted water not, make young spiral shell all the time in the water quality in high-quality, young spiral shell survival rate is high, output of seedling can improve more than 60%, and the seed of production is healthy and strong.

Claims

1. the breeding method of young spiral shell in the red spiral shell artificial breeding of arteries and veins, it is characterized in that first wanting settlement and metamorphosis, size is after the red spiral shell young of more than 1200 microns arteries and veins is collected, put into the container that 10-12 rises the KCI sea water solution that contains 2 ‰-3 ‰, soak 6-8 hour, make its non-cohesive direct metamorphosis become young spiral shell, then young spiral shell is put into 60-80 order polyethylene screen cloth (1) and done growth 5--6 rice, wide 2-3 rice, in the floating net cage of high 0.3-0.4 rice (2), (according to nursery pond size, determine), there is buoyancy (3) on four limits of net cage (2), throw something and feed every day oyster meat gruel 2-3 time, while throwing something and feeding, keep low water level, at the bottom of floating net cage (2) is sunken to pond, at the bottom of abnormal young spiral shell is ingested and is sunken to case and the bait on adherance, bait throwing in finishes 3-4 hour, adding water extraction high water level net cage (2) floats again, inhale ight soil and residual bait at the bottom of end removing remains in pond.