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Method for breeding two crops of freshwater shrimps in gordon euryale seed pond

A technology of freshwater shrimp and gorgon, which is applied in botany equipment and methods, fish farming, climate change adaptation, etc., can solve the problems of two seasons of freshwater prawns without gorgon ponds, so as to improve land use efficiency, reduce economic risks, and reduce aquatic plants The effect of planting

Pending Publication Date: 2021-04-02
SUQIAN AGRI SCI RES INST JIANGSU ACAD OF AGRI SCI
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  • Abstract
  • Description
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  • Application Information

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Problems solved by technology

[0004] At present, there is no report of two seasons of freshwater shrimp in Gorgon fruit ponds in China

Method used

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Embodiment Construction

[0020] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the embodiments of the present invention.

[0021] Taking the first release of seedlings in early March as an example, a method for cultivating two seasons of green shrimp in a Gorgon pond includes the following steps:

[0022] 1) Pond conditions: each pond is 3000~6000 m 2 , around the ridge, the width of the ridge is 0.5~0.8m, it should be compacted, no seepage and no leakage, the ring groove is 2~4m wide, 1.2~2m deep, the slope ratio is 1:1.5~1:3.5, the bottom of the groove is flat, and the thickness of silt is ≤ 10cm, fresh water, pH7.0~8.0, dissolved oxygen≥5mg / L, ammonia nitrogen≤0.2mg / L, every 667m 2 Equipped with 0.5 ~ 1kw pipeline oxygenation equipment, the oxygenation pipeline is placed in the ring groove. A dee...

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Abstract

The invention discloses a method for breeding two crops of freshwater shrimps in a gordon euryale seed pond. The method mainly comprises the following steps of (1) pond preparing; (2) stocking the freshwater shrimps for the first time; (3) harvesting the first crop of shrimps; (4) planting gordon euryale seeds; (5) stocking the freshwater shrimps for the second time; (6) picking the gordon euryaleseeds; and (7) harvesting the second crop of shrimps. By means of the method, according to the planting and breeding time difference, the empty pond period from February to May of gordon euryale seedplanting is utilized, two crops of freshwater shrimp stocking is conducted, the breeding specification and density are changed according to different growth periods, ecological alternate breeding ofthe gordon euryale seeds and the freshwater shrimps is achieved, the land utilization rate is increased, and economic benefits are increased.

Description

technical field [0001] The invention relates to the technical field of aquaculture, in particular to a method for cultivating two-season green shrimp in a Gorgon pond. Background technique [0002] Shrimp (scientific name: Macrobrachium japonica) Macrobrachium nipponense ), commonly known as river shrimp, this shrimp has a mixed diet, strong adaptability, tender meat, delicious taste and rich nutrition. It is a famous freshwater aquaculture species in my country. In 2019, the national output exceeded 225,000 tons, and the industry developed rapidly. The traditional culture mode of green shrimp is mainly based on pond culture, and it is necessary to plant water plants such as black algae, hornwort, hornwort, elegans, and bitter grass, and the area of ​​water plants in the seedling stage should account for 10%-25% of the pond area. The latter should reach 30%-50%. Aquatic plants have high technical requirements and are not easy to control. The crazy aquatic plants not only ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01K61/59A01G22/00
CPCA01K61/59A01G22/00Y02A40/81
Inventor 王宣朋张高伟覃宝利
Owner SUQIAN AGRI SCI RES INST JIANGSU ACAD OF AGRI SCI
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