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Stereo fine cultivation technique of shrimp, crab and shellfish in sea water pond

A technology of shrimp and crab shells and ponds, which is applied in the field of three-dimensional intensive cultivation of shrimp and crab shells in seawater ponds. It can solve the problems of single species, killing production problems, and the inability to solve the problems of cannibalism of swimming crabs, etc., so as to increase production and prevent mutual cannibalism. Effect

Inactive Publication Date: 2009-01-21
NINGBO ACAD OF OCEAN & FISHERY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

There is still a relatively simple problem in the variety of this technology.
Using similar breeding methods cannot solve the production problem of swimming crabs cannibalism, or even killing mixed species such as prawns and shellfish stocked in the same pond

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0024] The present embodiment adopts swimming crab, razor clam, three-dimensional cultivation technology of giant tiger prawn, and its specific steps are as follows:

[0025] 1. There are 200 breeding ponds in the greenhouse, and the area of ​​a single cultivation pond is 0.033hm 2 (about half an mu), the water depth of the pool is more than 1.5m, the water inlet and drainage are convenient, the bottom is sandy, sandy and muddy, the water source is good, and the seawater is fresh and pollution-free. And the breeding pond is equipped with oxygenation equipment to prevent and control the insufficient oxygen content of the water body in the later stage of breeding.

[0026] 2. Excavate excess silt in winter, expose to the sun, repair gates, reinforce embankments, and excavate central and ring ditches. About one month before stocking, the pond should be filled with about 30 centimeters of water, and the bleaching powder containing 30% to 35% of available chlorine should be used f...

Embodiment 2

[0037] The present embodiment is basically similar to the above-mentioned embodiment 1, and also adopts the three-dimensional intensive cultivation technology of swimming crab, razor clam, and Penaeus monodon, and the difference with the above-mentioned embodiment is:

[0038] 1. Larger water bodies are used for breeding, such as a pond of ten acres.

[0039] 2. The hanging cage of swimming crab needs to be built with wooden stakes or bamboo in the pond. The specific method is to use 4.5m long moso bamboo to build a shelf with a distance of 0.5m and a span of 3.5m. 4 in a group, that is, 4 moso bamboos are inserted every 3.5m, with a spacing of 0.5m, and then they are connected horizontally and vertically with moso bamboo to form a shelf. Iron wires can be interspersed in the horizontal direction to reduce costs. The horizontal moso bamboo or iron wire is 30cm away from the highest water level.

[0040] 3. Quantity of seedlings The quantity of razor clams stocked is converted...

Embodiment 3

[0043] This embodiment adopts the three-dimensional intensive culture technology of portunus, Philippine clams and Chinese prawns, which is basically the same as the above-mentioned embodiment 1, the difference is that:

[0044] The cultured shellfish is Philippine clams, which can be stocked into the ponds in February. The stocking quantity is converted according to 30,000 shellfish / mu, that is, about 15,000 shellfish are spread evenly in each culture pond. By April, Chinese prawns will be stocked, and the stocking quantity will be about 2,000 healthy shrimp seedlings per pond. Two batches of prawns can be stocked, and the second crop can be stocked into the pond after the first crop is harvested, and the number can be appropriately reduced. After entering May, portunus trituberculatus are stocked. The crab seedlings are generally small when they are bought, so they should not be put into the cage directly, and should be cultivated in the middle. The intermediate culture sho...

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Abstract

An three-dimensional intensive culture technique of shrimps, crabs and shellfish in a seawater pond comprises the following steps: the pond is cleaned up before stocking, the bottom of the pond is solarized, a central canal and a circular canal are excavated, and feed water is disinfected and sterilized with medicines; fresh seawater is fed, the water quality culture, fertilization and algae culture are carried out, a lifting device for a swimming crab breeding cage is prepared, and lines are parallel set up at the two ends of the culture pond with each line spaced 50cm; and 30cm higher than the surface of the water, the cage is suspended every 50cm, the inside of the cage is provided with fine sand, the outside of the cage is sheathed with a plastic netting, benthonic seashells are put into the cage for the first, and the stocking density is 30 benthonic seashells per mu, then the stocking of prawns is carried out, and the stocking density is 5000 prawns per mu. By adopting the three-dimensional multi-species hybrid culture technique of shrimps, crabs and shellfish in a seawater pond, the water layers of the stocking ponds can be fully utilized, the utilization rates of each water layer of the stocking ponds, stocking devices and manpower are further improved, the water purification capacity of the seashell can be fully utilized, and the swimming crabs are suspended in a cage, thus avoiding cannibalism and catching and killing the shrimps and seashells in the same pound; Furthermore, the three-dimensional intensive culture technique provides adhesion and sheltering objects for prawns, and achieves the purposes of improving yield and increasing economic benefits.

Description

technical field [0001] The invention relates to the technical field of aquaculture, in particular to a three-dimensional intensive cultivation technology for shrimp, crab and shellfish in seawater ponds. Background technique [0002] In recent years, with the rapid development of the mariculture industry, the cultured species and culture technology have also developed rapidly. The technology of cultivating aquatic products in various seawater ponds has also been greatly developed and attempted. Change the intensive culture of a single species into a multi-dimensional "polyculture" type, actively promote the mixed culture of shrimp, shrimp, crab, shrimp and shellfish, and achieve symbiotic profits by comprehensively utilizing the water layer to obtain the greatest economic benefits. And accumulated a lot of experimental experience. However, there are still many problems in this experimental breeding method. One is that the species is relatively single, and the other is that...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01K61/00
CPCY02A40/81
Inventor 王建平许存宾徐开崇
Owner NINGBO ACAD OF OCEAN & FISHERY
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