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Method for imitative-ecological breeding of Whitmania pigra through paddy field net cages

A wide-bodied golden thread leech and ecological imitation technology is applied to the field of imitating ecological breeding of wide-body golden thread leech in paddy cages, and can solve the problems of difficulty in removing leech predators, low leech survival rate, and large differences in size, and the like. The effect of small investment, convenient management and easy operation

Inactive Publication Date: 2017-03-22
YANGTZE UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, in production practice, it has been found that the breeding mode has the following problems: the harmful organisms of leeches in the pond, such as crayfish, eels, and frogs, are difficult to remove, resulting in a low survival rate of leeches; the leeches in the pond lack food, and the leeches grow slowly and have different specifications Very large; in the process of capturing finished leeches, the labor intensity is very high and the capture rate is low

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0021] 1. Selection and preparation of paddy fields: The selection criteria for breeding wide-bodied golden leech paddy fields are: the location of the paddy field is low, the soil is loam, the water retention performance is good, and the paddy field does not leak water, the surrounding environment of the paddy field is quiet, and the water source is abundant. It is convenient for drainage and irrigation, and there is no polluted water body or pollution source nearby; the preparation in the paddy field is: according to the topography of the paddy field, gradually excavate a breeding ditch with a length of 80 meters, a width of 5 meters and a depth of 1 meter along the edge of the paddy field to the other half of the paddy field , leave a 1.2-meter field ridge between the breeding ditch and the breeding ditch;

[0022] 2. The design and layout of the net cage: the breeding net cage is a rectangular box without a cover. The length, width and height of the net cage are 4 meters, 2...

Embodiment 2

[0029] 1. Selection and preparation of paddy fields: The selection criteria for breeding wide-bodied golden leech paddy fields are: the location of the paddy field is low, the soil is loam, the water retention performance is good, and the paddy field does not leak water, the surrounding environment of the paddy field is quiet, and the water source is abundant. It is convenient for drainage and irrigation, and there is no polluted water body or pollution source nearby; the preparation in the paddy field is: according to the topography of the paddy field, gradually excavate a 90-meter-long, 5.5-meter-wide, and 1.1-meter-depth breeding ditch along the edge of the paddy field to the other half of the paddy field , leave a 1.4-meter ridge between the breeding ditch and the breeding ditch;

[0030] 2. The design and layout of the net cage: the breeding net cage is a rectangular box without a cover. The length, width and height of the net cage are 4 meters, 2 meters and 1 meter respec...

Embodiment 3

[0037] 1. Selection and preparation of paddy fields: The selection criteria for breeding wide-bodied golden leech paddy fields are: the location of the paddy field is low, the soil is loam, the water retention performance is good, and the paddy field does not leak water, the surrounding environment of the paddy field is quiet, and the water source is abundant. It is convenient for drainage and irrigation, and there is no polluted water body or pollution source nearby; the preparation in the paddy field is: according to the terrain of the paddy field, gradually excavate a breeding ditch with a length of 100 meters, a width of 6 meters and a depth of 1.2 meters along the edge of the paddy field to the other half of the paddy field , leave a 1.5-meter ridge between the breeding ditch and the breeding ditch;

[0038] 2. The design and layout of the net cage: the breeding net cage is a rectangular box without a cover. The length, width and height of the net cage are 4 meters, 2 mete...

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Abstract

The invention provides a method for imitative-ecological breeding of Whitmania pigra through paddy field net cages. The method comprises the following steps of 1, selection and preparation of paddy fields, 2, design and arrangement of the net cages, 3, arrangement of water inlets and water outlets, 4, planting of water plants in breeding ditches, 5, foodstuff feeding, 6, putting of Whitmania pigra fingerlings and 7, breeding management of the Whitmania pigra. According to the method, the Whitmania pigra is intensively bred with high density through the net cages, aquatic plants are used for purifying water and providing habitats for the Whitmania pigra, and the problem that the survival rate and catching rate of the Whitmania pigra in current breeding process are low is solved; and the cost for digging breeding ponds can be saved, the ecological environment is not damaged, management is convenient, the utilization value of the paddy field is played to a great extent, and the steady yield and high yield of the Whitmania pigra are ensured.

Description

technical field [0001] The invention relates to the technical field of special aquaculture, in particular to a method for imitating ecological cultivation of wide-body golden leeches in net cages in paddy fields. Background technique [0002] Wide-body golden leeches (Whitmania pigra Whitman1884), commonly known as leeches, also known as horse leeches, wide-body golden leeches and wide-body leeches, belong to the phylum ANNELIDA, class Hirudinea, and subclass Euhirudinea Lukin. 1956), Arhynchobdellida Blanchard, 1894, Hirudiniformes Caballero, 1952, Haempidae Sawyer, 1986, Whitmania Blanchard, 1888, widely distributed in my country, It is a traditional special medicinal aquatic animal in my country. The whole body of the dried leech is a traditional Chinese medicinal material, which is salty, bitter, flat, and slightly poisonous. Return liver channel. Tool breaks blood to stimulate menstruation, removes blood stasis and eliminates symptoms, and is used for amenorrhea due to...

Claims

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Application Information

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IPC IPC(8): A01K61/40A01K61/60
CPCA01K61/00Y02A40/81
Inventor 罗鸣钟郭坤苏应兵
Owner YANGTZE UNIVERSITY
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