Breeding and separated planting and breeding method for large-size finished crayfishes

A large-scale, finished product technology is applied in the field of breeding and separation of large-scale finished crayfish, which can solve the problems of not being able to raise large-scale and high-quality finished shrimp, low output efficiency, and irregular specifications, so as to avoid production The effects of low efficiency, improved efficiency and quality, and reduced planting costs

Active Publication Date: 2020-11-10
HUAZHONG AGRI UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This method solves the limitation that the existing breeding mode cannot produce large-scale and high-quality finished shrimps, and at the same time makes full use of ecological resources, promotes the early breeding of large-scale seedlings of crayfish, and avoids the existing rice field b

Method used

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  • Breeding and separated planting and breeding method for large-size finished crayfishes

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Effect test

Embodiment 1

[0052] 1-1. Selection of paddy fields:

[0053] Choose paddy fields with good water quality, sufficient water sources, convenient drainage and irrigation, good water retention capacity and no pollution around;

[0054] 1-2. Transformation of paddy fields:

[0055] (1) Field engineering transformation and optimization of shrimp seedling ponds: the paddy field covers an area of ​​6.5 mu, and an annular ditch (ditch depth 1.0m, ditch bottom width 1m, ditch surface width 3m) is excavated along the inner side of the paddy field ridge in the paddy field. The inner and outer ridges of the ditch (30cm wide, 40cm high) and the outer ridges (2m wide, 0.8m higher than the field surface) were respectively built on the inner and outer sides of the ditch. Build a machine plowing road at the corner of the paddy field and the circular ditch;

[0056] Aeration and oxygenation discs are laid in the middle of the bottom of the annular ditch. The spacing of the aeration and aeration discs is 15...

Embodiment 2

[0082] 2-1. Selection of paddy fields:

[0083] Choose paddy fields with good water quality, sufficient water sources, convenient drainage and irrigation, good water retention capacity and no pollution around;

[0084] 2-2. Transformation of paddy fields:

[0085] (1) Field engineering transformation and optimization of shrimp seedling ponds: the paddy field area is 7.5 mu, and an annular ditch (ditch depth 1.2m, ditch bottom width 2m, ditch surface width 4m) is excavated along the inner side of the paddy field ridge in the paddy field. The inner and outer ridges of the ditch (40cm wide, 50cm high) and the outer ridges (3m wide, 1.0m higher than the field surface) were respectively built on the inner and outer sides of the ditch. Build a machine plowing road at the corner of the paddy field and the circular ditch;

[0086] Aeration and oxygenation discs are laid in the middle of the bottom of the annular ditch. The spacing of the aeration and aeration discs is 20 meters per ...

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Abstract

The invention discloses a breeding and separated planting and breeding method for large-size finished crayfishes, and belongs to the technical field of aquaculture. The breeding and separated plantingand breeding method comprises the following steps of (1) transforming and optimizing of field engineering; (2) cleaning and drying of a rice field; (3) planting and maintaining of aquatic plants; (4)cultivating of high-quality young shrimps; (5) culturing of large-size finished shrimps; (6) feed feeding and management; (7) water quality management and disease green prevention and control; and (8) planting and breeding comprehensive management. According to the method, a batch of high-quality young shrimps and large-size finished shrimps can be harvested by utilizing the technologies of selecting and remaining high-quality parent shrimps, breeding and breeding separation and the like, so that the limitations that the young shrimps in a crayfish breeding pond are irregular in specification, the young shrimp storage amount cannot be accurately counted and the high-quality large-size finished shrimps cannot be bred in an existing rice shrimp breeding mode are avoided; and the problems that crayfishes produced in an existing crayfish and rice mode are irregular in specification, high in death rate, low in benefit and the like are solved, a rice field ecological system is fully utilized for comprehensive planting and breeding and green production, and the crayfish specification and quality are improved.

Description

technical field [0001] The invention relates to the technical field of aquaculture, in particular to a breeding and separation breeding method for large-scale finished crayfish. Background technique [0002] Crayfish, scientifically known as Procambarus clarkii (Procambarus clarkii), originated in North America and was introduced to my country in the 1930s. The natural population of crayfish has strong reproductive ability, can live in various waters, has a wide range of food habits, and is suitable for breeding. At the same time, crayfish are popular in domestic and foreign markets because of their delicate meat, unique flavor and rich nutrition. [0003] Crayfish has become the most important farmed freshwater economic shrimp in my country. In particular, after crayfish were co-cropped with rice in paddy fields, the "shrimp-rice co-cropping" model has been greatly promoted across the country, which has achieved the effect of "one water for two purposes, two waters and tw...

Claims

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Application Information

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IPC IPC(8): A01K61/50A01G22/22A01G31/00A23K20/142A23K20/147A23K20/158A23K20/24A23K20/26A23K50/80
CPCA01G31/00A23K20/142A23K20/147A23K20/158A23K20/24A23K20/26A23K50/80A01K61/50A01G22/22Y02P60/60Y02A40/81
Inventor 袁勇超杨伟杰杨慧君顾泽茂莫爱杰舒娜娜鲁晓蕾
Owner HUAZHONG AGRI UNIV
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