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River crab culture method capable of increasing acre yield

A breeding method and a yield-per-mu technology are applied in the field of river crab breeding to increase the yield per mu, and can solve problems such as the inability to effectively increase the yield per mu of river crabs, the small size of adult crabs, and the increased mortality of river crabs.

Inactive Publication Date: 2021-04-16
马鞍山市徽农农业科技发展有限公司
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  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, too high a breeding density is not only prone to the problem of increased mortality of river crabs, but also leads to the small size of adult crabs, which cannot effectively increase the yield per mu of river crabs

Method used

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  • River crab culture method capable of increasing acre yield

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Experimental program
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Effect test

Embodiment 1

[0027] A kind of river crab culture method that improves yield per mu, comprises the following steps:

[0028] S1. Pond preparation: Disinfect the pond with quicklime on February 17, wherein the amount of quicklime is 70kg / mu; after the disinfection of the pond is completed, apply 120kg / mu of organic fertilizer to the bottom of the pond; set up anti-escape around the crab pond network;

[0029] S3. Planting and management of aquatic plants: On March 1, water was injected to a water depth of 15 cm, and then Elodea was planted, and the planting area accounted for 25% of the total area of ​​the pond;

[0030] On April 15th, the planting area of ​​Hydrilla verticillium and Erytheria verticillum accounted for 45% of the total area of ​​the pond, and the ratio of the planting area of ​​Hydrilla verticillium and Erythrysophylla was 3:1;

[0031] From June to August, keep the water grass coverage rate in the pond at 50-55%;

[0032] S2, crab seedlings are put in a suitable place to ...

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Abstract

The invention discloses a river crab breeding method capable of increasing the acre yield. Specific methods such as feeding management of river crabs, water quality management of ponds, an oxygenation mode and the like are optimized on the basis of a traditional high-density river crab breeding technology, thereby solving the problems of increased death rate, smaller adult crab specification and the like in traditional high-density river crab breeding. Compared with the traditional river crab breeding method, the method has the advantages that the survival rate of the river crabs is increased, the adult crabs are large in specification, and therefore the acre yield and quality of the river crabs are effectively improved.

Description

technical field [0001] The invention relates to the technical field of crab cultivation, in particular to a river crab cultivation method for increasing yield per mu. Background technique [0002] River crab, also known as Chinese mitten crab, is a unique aquatic product in my country. It has the characteristics of delicious meat and rich nutrition. It is deeply loved by consumers and has high economic value. In order to meet the increasing market demand, large-scale artificial breeding of river crabs has become more and more popular, and the scale of artificial breeding of river crabs has gradually expanded. The traditional pond culture of river crabs mainly involves intensive high-density culture of river crabs by planting aquatic plants, adding natural bait such as snails, combined with water quality management and artificial feed feeding management, and the technology is very mature. However, excessively high breeding density is not only prone to the problem of increase...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01K61/59A23K50/80A23K10/22A23K10/26A23K10/30A23K10/37A23K20/158A23K10/18A23K20/105A23K20/174A23K20/20A23K10/12A01K63/04A01K61/13A01G33/00A01G22/00C01B13/02
CPCY02P60/87Y02A40/81Y02A40/818
Inventor 徐文杰
Owner 马鞍山市徽农农业科技发展有限公司
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