Method for breeding one-year-old crabs in river crab families through large-scale enclosures in paddy field

A large-scale, paddy field technology, applied in the fields of botanical equipment and methods, fish farming, rice cultivation, etc., can solve problems such as unfavorable large-scale development, high pond construction cost, and large environmental differences.

Inactive Publication Date: 2016-06-01
PANJIN GUANGHE CRAB IND
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Problems solved by technology

The disadvantage of this method is that the cost of ponds is high, and the environmental differences between ponds are relatively large, which affects the evaluation of heritability among families and the selection process, and it is difficult to form a scale
There are also cage cultures, but river crabs are more destructive to the cages, especially in the breeding stage of first-year

Method used

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Embodiment Construction

[0004] The first age crab species of the river crab family is further described as an example with the Panjin area in the paddy field in a large-scale isolation culture. Paddy field preparations were carried out in April, and rice fields with flat terrain, convenient water sources, and good water retention were selected as enclosed crab paddy fields, and then fertilized with rotary tillage, ridges were reinforced, and water inlet and drainage facilities were set up. The fertilization method is to spread 10kg of organic fertilizer on each enclosure area, the rotary tillage depth is 10cm, the water inlet and drainage facilities are plastic pipes, and the water outlet end of the pipe is a flexible pipe. The water level in the paddy field is controlled by controlling the height of the flexible water outlet end. Build enclosures in May. First, dig a 20cm deep and 20cm wide ditch in the rice field according to the size and shape of the enclosure. The enclosure area is 50㎡. Then inser...

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Abstract

The invention relates to a method for breeding one-year-old crabs in river crab families through large-scale enclosures in a paddy field. The method is characterized in that enclosures are built in the paddy field, rice is planted in the enclosures, and crabs in one family are bred in each enclosure. The method has the benefits as follows: firstly, the crabs are bred in one paddy field in an enclosed manner, water in the enclosures is the same, water bodies are connected, and environment conditions are basically the same; secondly, the crabs are randomly put into different enclosures repeatedly, and accordingly, influence of environment differences is reduced; thirdly, the breeding success rate can be increased with a repeated enclosure method in different paddy fields; fourthly, the manufacturing cost of the enclosures is lower, operation is simple and convenient, and the scale can be enlarged more easily. Additionally, the method can be used for large-scale paddy field ecological experiments.

Description

technical field [0001] The invention relates to the technical field of aquatic breeding, in particular to the field of family breeding of river crabs, in particular to a method for cultivating first-year-old crab species of river crab families in large-scale enclosures in paddy fields. Background technique [0002] River crab is a kind of aquatic product loved by the masses. River crab farming is also a pillar branch of the aquaculture industry. It is a pillar industry in many areas to adjust the structure of agricultural industries, increase farmers' income, and build a harmonious society. With the in-depth development of the river crab farming industry, the demand for fine varieties of river crabs from farming enterprises and farmers is increasing day by day. This has just promoted the development of the selection and breeding of excellent varieties of river crabs. At present, the selection and breeding of river crabs is mainly based on family selection, or is improved on...

Claims

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Application Information

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IPC IPC(8): A01K61/00A01G16/00A01G22/22
CPCY02A40/81
Inventor 郑岩刘胥席文秋孙娜白永安
Owner PANJIN GUANGHE CRAB IND
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