Crayfish larva breeding method of sherax quadricarinatus

The technology of a freshwater lobster and a cultivation method, which is applied in the field of aquaculture, can solve the problems of difficulty in large-scale cultivation, low survival rate of shrimp fry, and high cultivation cost, and achieve the effects of being less prone to spoilage, maintaining a stable growth environment, and having an excellent growth environment.

Inactive Publication Date: 2020-07-14
澄迈盛虾林农业科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the current shrimp seed cultivation process often has problems such as low survival rate of shrimp seedlings, slow growth, poor health, and high breeding costs, making it difficult to carry out large-scale cultivation and meet market demand.

Method used

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  • Crayfish larva breeding method of sherax quadricarinatus
  • Crayfish larva breeding method of sherax quadricarinatus
  • Crayfish larva breeding method of sherax quadricarinatus

Examples

Experimental program
Comparison scheme
Effect test

Embodiment approach

[0034] According to a preferred embodiment of the present invention, the oxygen of the oxygen increasing device 3 is supplied through the oxygen supply pipeline 4, wherein,

[0035] Each oxygen increasing device is respectively connected with the corresponding oxygen supply pipeline, and a valve 6 is arranged between the oxygen increasing device and the corresponding oxygen supply pipeline.

[0036] In a further preferred embodiment, in the same net cage, the ends of the plurality of oxygen supply pipelines 4 away from the aeration device 3 are converged with each other and then connected to the main pipeline 5. Between the converging end and the main pipeline 5, a valve 6.

[0037] The inventors have found that different specifications of shrimp seedlings have different oxygen requirements in the cultivation process. In the present invention, preferably, the shrimp seedlings of different specifications can be placed in different net cages, and then through the independently c...

Embodiment 1

[0251] Adopt the method for cultivating shrimp seedlings of the present invention to cultivate, the steps are as follows:

[0252] Step 1, set up a rectangular cement pond with a specification of 6 × 3.5m as a nursery pond, set 3 net cages inside it, and set 4 60-purpose air stones in each net cage to increase oxygen;

[0253] Lay the silt cultivated by shrimp seedlings in the established seedling ponds, and then inject culture water exposed to the sun for 3 to 5 days into the seedling ponds. quicklime disinfection;

[0254] Then set the sunshade net, adjust the water temperature of the aquaculture water body to be 28°C, the dissolved oxygen in the water to be 10 mg / L, and the pH of the water body to be 7.5.

[0255] Step 2: Before putting the shrimp seedlings in, take a small amount for "hydrophilic" observation. After 24 hours of observation, there is no abnormality in the shrimp seedlings, and the rate is 1000 fish / m 2 Throw in shrimp seedlings with a body length of 0.6 t...

Embodiment 2

[0271] The method used in this example is similar to Example 1, the difference is that the dissolved oxygen in the water in step 1 is 12 mg / L.

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Abstract

The invention discloses a crayfish larva breeding method of sherax quadricarinatus. The crayfish larva breeding method comprises the following steps of establishing a larva raising pond, and then treating the larva raising pond; casting crayfish larvae; and breeding the crayfish larvae. According to the method, through the specific larva raising pond, appropriate parameters are adjusted, and besides, larva raising feeds which are rich in nutrients, and easy to digest and absorb, and cannot pollute water bodies are added, so that the production cost is reduced, and the survival rate and the growth rate of the crayfish larvae are notably increased.

Description

technical field [0001] The invention belongs to the field of aquaculture, and in particular relates to a method for cultivating Australian freshwater lobster seedlings. Background technique [0002] Australian freshwater lobster is native to Australia and lives in freshwater. It is one of the best freshwater lobsters in the world. Compared with other shrimps, Australian freshwater lobster has the following advantages in farming: (1) It is rich in nutrition, rich in protein in the body, and has very little cholesterol. It is a veritable low-cholesterol nutritional product; (2) Fast growth, high output, (3) Strong stress resistance, wide adaptability, and high tolerance to harsh environments; (4) Miscellaneous food habits, a wide range of feed sources, and low breeding costs. Based on the above advantages, in recent years, Australian freshwater lobster has been more and more favored by domestic and foreign consumers, and the market demand has increased greatly. [0003] In t...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01K61/59A23K50/80A23K10/18A23K10/30A23K10/20
CPCA01K61/59A23K50/80A23K10/18A23K10/30A23K10/20Y02A40/81
Inventor 何普清
Owner 澄迈盛虾林农业科技有限公司
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