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Rice field breeding method for crayfish procambrarus clarkii

A technology of Crayfish and a breeding method, which is applied in the fields of botanical equipment and methods, fish farming, rice cultivation, etc., can solve the problems of fertilizer loss, insufficient bait, damage to rice seedlings, etc., so as to reduce the loss of fertilizer and improve the Breeding production, reducing the effect of cannibalism

Inactive Publication Date: 2008-10-08
JIANGSU BAOLONG GROUP +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The farming method of opening the ring ditch has a large amount of farmland clearing engineering, high investment, time-consuming and laborious; although the farming method of not opening the ring ditch has a small amount of engineering and relatively low investment, fishing is very difficult and the output is low.
If the above three breeding modes are stocked with broodstock or juveniles in advance, they will cause harm to rice seedlings. At the same time, rice spraying and field roasting will have a greater impact on Procambarus clarkii
Moreover, most of the raised Procambarus clarkii are caught and marketed in the following year, and the growth period is relatively short. In addition, in order to avoid damage to the juvenile shrimp when transplanting rice seedlings, the no-tillage method is usually used, which is not easy for farmers to accept.
Due to the no-tillage method used in the above three modes, most of the organic fertilizers are applied on the surface of the paddy fields, causing serious fertilizer loss and not conducive to the cultivation of bait organisms.
The stocking time of broodstock or juvenile shrimp is mostly 2 to 3 months after fertilization. At this time, the organic matter in the fertilizer has already decomposed, and the bait in the paddy field is seriously insufficient, which has a great impact on the growth of juvenile shrimp and the improvement of aquaculture production.
Due to the existence of the above-mentioned defects, the yield of the existing Procambarus clarkii paddy field culture method is low, and the benefit is not ideal, which is one of the reasons why the existing culture mode is difficult to promote in a large area

Method used

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  • Rice field breeding method for crayfish procambrarus clarkii
  • Rice field breeding method for crayfish procambrarus clarkii

Examples

Experimental program
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Effect test

Embodiment 1

[0019] A paddy field cultivation method for Procambarus clarkii comprises the following steps: excavating an area at the water inlet end of the paddy field (1) accounting for 3% to 10% of the total area of ​​the paddy field (1), with a depth of 0.5 to 1.0 meters and a width of 3 to 6 meters. Enclosing ditch (2), the ditch is surrounded by a 1 cm plastic net to form a breeding area, the fence is fixed with bamboo stakes, the distance between the bamboo stakes is 1.5 to 2 meters, and the stone ridges at the bottom of the net are buried in the mud 20-40 cm. The rice field outside the ditch (1) is plowed and leveled according to the rice planting requirements. The water inlet and the drain of the paddy field (1) need to establish anti-escape facilities to prevent predatory fish from entering and shrimp seedlings from escaping. Evenly excavate several furrows in the paddy field (1), the length of which is 95% of the length or width of the paddy field, the furrows (3) with a width ...

Embodiment 2

[0021] A paddy field breeding method for Procambarus clarkii is as follows: the original ring ditch (4) in the paddy field (1) is used, and the ring ditch (4) must meet the requirements of a depth of 0.5 to 1.0 m and a width of not less than 3 m. A section of the water inlet end of the paddy field (1) is taken, and a breeding area (5) is surrounded by glass steel tiles, and the area of ​​the breeding area (5) accounts for 3% to 15% of the total area of ​​the paddy field (1). The bottom end of the fiberglass tile is inserted into the mud, the insertion depth is 30-40 cm, and the fiberglass tiles within 10-20 cm from the bottom surface are densely covered with 0.8-1.2 cm seedling holes. The fence is fixed with bamboo stakes, and the distance between the bamboo stakes is 1.5 to 2 meters. The rice field outside the ditch (1) is plowed and leveled according to the rice planting requirements. Anti-escape facilities need to be established at the water inlet and outlet of the paddy f...

Embodiment 3

[0023]A paddy field cultivation method for Procambarus clarkii comprises the following steps: excavating an area at the water inlet end of the paddy field (1) accounting for 3% to 10% of the total area of ​​the paddy field (1), with a depth of 0.5 to 1.0 meters and a width of 3 to 6 meters. Enclosing ditch (2), surrounded by a hard plastic sheet with holes to form a breeding area, the plastic sheet is 30-60 centimeters higher than the paddy field, and another 20-40 cm is buried in the mud, 20 cm away from the bottom surface of the paddy field Scattered seedling holes of 0.8 to 1.2 cm are densely distributed within the range. The plastic sheet is fixed with bamboo stakes, and the distance between the bamboo stakes is 1.5 to 2 meters. Aquatic plants such as elodea, bitter grass, hydrilla and water peanuts are planted in the ditch, and the rice field (1) outside the ditch is plowed and leveled according to the rice planting requirements. Anti-escape facilities need to be establi...

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Abstract

The invention relates to a method for cultivating the Krause's crayfish, comprising that cleaning the field, cultivating the parental crayfish, cultivating the seed and taking off, cultivating the rice. The invention is characterized in that the cultivation of parental crayfish is processed in the surrounded groove, which has an anti-jump device and near the ground arranges seed holes at 0.8-1.2cm diameter; the crayfish seed can pass through the holes into the field. The invention can pre-cultivate the parental crayfish to avoid damaging the rice. And the invention can obtain many benthic fauna as the bait of parental crayfish, seed, or the like.

Description

technical field [0001] The invention relates to a method for cultivating freshwater economical shrimps. Background technique [0002] Procambarus clarkii is native to North America and is commonly known as freshwater crayfish. It belongs to Arthropoda, Crustacea, Crustacea, Decapod, Cricketidae in classification. It was introduced to my country in 1929 and has been widely distributed in my country. Due to the rapid growth of the market consumption and export processing quantity of Procambarus clarkii, the number of its wild resources is decreasing sharply. Therefore, increasing the production of Procambarus clarkii through artificial breeding has become an important way to meet the needs of processing, export and consumption markets. one of the important ways. At present, the rice field culture method of Procambarus clarkii usually includes three culture modes: 1. the mode of releasing seed shrimp; 2. the mode of releasing egg-bearing shrimp; The first stocking mode is to ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A01K61/00A61D19/00A01G16/00A01G22/22
CPCY02A40/81
Inventor 周鑫王建新徐增洪张成锋王凤书
Owner JIANGSU BAOLONG GROUP
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