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Ecological breeding method for increasing output of river crabs

A technology for ecological breeding and river crabs, applied in botany equipment and methods, fish farming, lawn growth, etc., to achieve the effects of increasing production and breeding benefits, improving mineralization efficiency, and improving economic and ecological benefits

Inactive Publication Date: 2020-04-14
SUQIAN AGRI SCI RES INST JIANGSU ACAD OF AGRI SCI
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  • Abstract
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Problems solved by technology

[0005] In order to solve the above-mentioned deficiencies, the present invention provides an ecological breeding method for increasing the output of river crabs, which solves the existing problems in the existing river crab breeding process, such as stocking of snails, conservation of aquatic plants, use of microecological preparations and oral medicines, and improves the breeding by improving the breeding method environment, and promote the increase of river crab yield per unit area and breeding benefits

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Embodiment Construction

[0042] A kind of ecological cultivation method that improves river crab production, comprises the following steps:

[0043] (1) Pond pretreatment

[0044]The area of ​​the pond is 3.3 mu, the ring ditch is 1.5m wide and 50cm deep. The pond has sufficient light, clean water, independent inlet and drainage systems, bottom mud thickness of 10-15cm, and no water leakage on the ridge of the pond. After emptying the pond water in early November, remove aquatic plants and silt, and expose the bottom mud of the pond to the sun until the end of December, and the bottom mud of the pond turns white and cracks. Use the polyethylene mesh installed with calcium-plastic boards on the upper edge as a fence to divide the breeding pond into two parts: the aquatic plant protection area and the river crab temporary breeding area. The fence is erected at 2m inside the ring ditch, 40-50cm high, and buried 30cm in the bottom of the pond. and tilted slightly outward. Use wooden sticks as stakes, b...

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Abstract

The invention discloses an ecological breeding method for increasing the output of river crabs. The method comprises the following steps: (1) pretreating a pond; (2) planting aquatic plants; (3) making preparation before stocking; (4) stocking young crabs and snails; and (5) taking management measures. The invention aims at problems that in production, the snails are stocked too early, the pond deposit of the aquatic plants is hard to control, microecologics are poor in water purification effect, oral medicines are seriously lost, and the like in production practice, conventional river crab breeding method is improved, then effects of aquatic plant maintenance, water quality regulation and control and disease and insect prevention and control in the river crab breeding process can be improved, and the output and the breeding benefits of the river crabs can be increased.

Description

technical field [0001] The invention relates to the technical field of aquaculture, in particular to an ecological breeding method for increasing the yield of river crabs. Background technique [0002] River crab (Eriocheirsinensis H.Milne-Edwards) scientific name Chinese mitten crab is an important cultured species in my country's freshwater aquaculture industry. In recent years, my country's river crab breeding industry has developed rapidly, with an annual output of more than 812,000 tons. It has become a pillar industry in many places and has made great contributions to the development of agriculture and the increase of farmers' income. [0003] Although the scale of river crab farming in China has been expanding and the farming technology has been improving, there are still the following problems in the breeding process: (1) Farmers generally choose to release snails in February to March. At this time, the pond water temperature is low and the growth of plankton is slow...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01K61/59A01K61/51A01G20/00A01K61/13A01K63/00A23K50/80A23K20/105A23K10/30
CPCA01K63/003A23K10/30A23K20/105A23K50/80A01K61/13A01K61/51A01K61/59A01G20/00Y02A40/81Y02A40/818
Inventor 唐金玉姜爱兰吴春丁辰龙叶建勇朱俊杰
Owner SUQIAN AGRI SCI RES INST JIANGSU ACAD OF AGRI SCI
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