Cherax quadricariratus seed warm shed fattening breeding method

The technology of a red crayfish and a cultivation method is applied in the directions of botanical equipment and methods, cultivation, plant cultivation, etc., which can solve the problems of hindered development of the industry, low survival rate of seedlings, and small size of cultivation, so as to improve cultivation and cultivation. Specifications, improve the survival rate, prolong the effect of the growth cycle

Inactive Publication Date: 2019-09-17
ZHEJIANG INST OF FRESH WATER FISHERIES
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Problems solved by technology

However, because red-clawed crayfish is a tropical species, and has the characteristics of few eggs and asynchrony, especially in non-tropical areas, there are generally problems such as short breeding cycle, small growing size and low seed survival rate, which lead to its industry. The development is hindered. Therefore, it is necessary to support a more scientific farming model that is in line with the characteristics of red claw crayfish

Method used

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  • Cherax quadricariratus seed warm shed fattening breeding method

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Experimental program
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Embodiment 1

[0028] A method for cultivating red-clawed crayfish seedlings in greenhouses, comprising the steps of:

[0029] (1) Pond construction: The pond should be located in a place with convenient transportation, sunny ventilation, east-west orientation, quiet environment, good surrounding ecological environment, convenient drainage and irrigation, and no pollution source. The water source is sufficient and meets the water quality standards of fishery waters. The water quality is fresh and the water body is weakly alkaline at 7.5~8.6. The shape of the pond is preferably rectangular, and the aspect ratio can be 3:1. The pond area is preferably 3-5 mu (one pond of 3.6 mu was selected in this test), and the slope ratio of the pond is 1:2.5-1:3. The depth of the pond is about 1.5m. The soil quality of the pond is preferably clay and loam, with good water retention performance. The bottom of the pond has a slight slope, which is convenient for drainage. There is no or little silt, and the...

Embodiment 2

[0039] 1. Pond selection

[0040] The pond should choose a place with convenient transportation, ventilation and sunshine, east-west orientation, quiet environment, good surrounding ecological environment, convenient drainage and irrigation, and no pollution source. The water source is sufficient and meets the water quality standards for fishery waters. The water quality is fresh and the water body is weakly alkaline at 7.0~7.5. The shape of the pond is preferably rectangular, and the aspect ratio can be 3:1. In this embodiment, a pond of 5.0 mu is selected, and the depth of the pond is about 1.5m. The soil quality of the pond is preferably clay and loam, with good water retention performance. The bottom of the pond has a slight slope, which is convenient for drainage. There is no or little silt, and the silt should be controlled below 10cm. Escape prevention facilities with a height of 50cm should be built around the pond stem. According to the principle of high irrigation a...

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Abstract

The invention belongs to the technical field of aquaculture, and relates to a cherax quadricariratus seed warm shed fattening breeding method. The breeding method comprises the steps of establishment of a pond, pond cleaning and disinfection, warm shed establishment, fertilization and algae cultivation, aquatic plant growing, cherax quadricariratus seed putting, daily management and outdoor stocking for growing. A small shed fattening pond breeding mode suitable for features of cherax quadricariratus is established. On one hand, the seed stocking time is shortened, the growth cycle is prolonged, and the growing specification is improved; on the other hand, through early-stage small water body seed breeding, the seed breeding survival rate is increased, the breeding yield is increased, thus the comprehensive breeding benefit is increased, and through demonstrated leading, industrialized exploitation and popularization of the cherax quadricariratus are achieved.

Description

technical field [0001] The invention belongs to the technical field of aquaculture, and relates to a method for cultivating red-clawed crayfish seedlings in a warm shed. Background technique [0002] Red Claw Crawfish ( Cherax quadricariratus ), also known as Australian freshwater lobster, is one of the rare freshwater shrimps in the world. Cherax ), native to tropical regions such as northern Australia and southern New Guinea. Because of its advantages such as fast growth, large individual, high meat yield, delicious meat, strong disease resistance, and high nutritional value, it is not only favored by domestic and foreign breeding enterprises and consumers, but also has broad prospects for breeding development. Especially in recent years, with the frequent occurrence of domestic vannamei diseases and the decline of breeding benefits, the market demand for crayfish and other crayfish has increased sharply, and the industrial scale of red crayfish has also been rapidly ex...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01K61/59A01G22/00A01G31/00
CPCA01G31/00A01K61/59A01G22/00Y02P60/60Y02A40/81
Inventor 顾志敏贾永义程顺迟美丽郑建波刘士力
Owner ZHEJIANG INST OF FRESH WATER FISHERIES
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