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Overwintering breeding method for artificially breeding leech

A breeding method and leech technology, applied in fish farming, application, animal husbandry, etc., can solve the problems of not meeting the requirements of high-density overwintering breeding, low leech density, and large occupied area, so as to prevent mass death and improve the survival rate. High, solve the effect of occupying a large area

Inactive Publication Date: 2017-11-17
JINGZHOU PUBLIC KANG BIOTECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The survival rate of overwintering in outdoor ponds and cement ponds is low, and the survival rate of overwintering in outdoor furrows and indoor paddy fields is relatively high, but they occupy a large area, the density of leeches is low, and management is troublesome, which cannot meet the requirements of high-density overwintering breeding.

Method used

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  • Overwintering breeding method for artificially breeding leech
  • Overwintering breeding method for artificially breeding leech
  • Overwintering breeding method for artificially breeding leech

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0034] Example 1: Place the overwintering device in a ventilated breeding room at 4°C to 10°C, put leeches at a density of 2,500 per box, and control the temperature of the overwintering water at 8°C to 12°C through the water storage and temperature control system. During the 5-month period, the breeding environment was kept clean and the breeding water was clean and transparent; after wintering, the survival rate of leeches reached 95%, and the relative weight loss rate was 5%.

Embodiment 2

[0035] Example 2: Place the overwintering device in a ventilated breeding room at 4°C to 10°C, put leeches at a density of 2800 per box, and control the temperature of the overwintering water at 8°C to 12°C through the water storage and temperature control system, and overwinter During the 5-month period, the breeding environment was kept clean and the breeding water was clean and transparent; after wintering, the survival rate of leeches reached 92%, and the relative weight loss rate was 5%.

Embodiment 3

[0036] Example 3: Place the overwintering device in a ventilated breeding room at 4°C to 10°C, put in leeches at a density of 3000 per box, and control the temperature of the overwintering water at 8°C to 12°C through the water storage and temperature control system. During the 5-month period, the breeding environment was kept clean and the breeding water was clean and transparent; after wintering, the survival rate of leeches reached 90%, and the relative weight loss rate was 6%.

[0037] The overwintering culture method of artificial culture leech is specifically carried out as follows:

[0038] Each overwintering box 1 is paved with paddy field soil 25cm thick and passed through a 40-mesh sieve, and 2500-3000 healthy and disease-free adult leeches with a specification of 2.7-3.2g / piece are placed;

[0039] The water storage and temperature control system in the breeding room needs to ensure 24 hours of wintering water. The wintering water is used to extract clean groundwat...

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Abstract

The invention relates to an overwintering breeding method for artificially breeding leeches, and belongs to the technical field of leech breeding. The overwintering breeding method is characterized by comprising eight steps, and an overwintering box body and an overwintering net bag are combined with a wet paddy field to achieve high-density overwintering breeding of the leeches. An opened box opening is top of the overwintering box body at the top of the overwintering box body, slide wheels are installed at the four corners of the bottom of the overwintering box body, and holes are uniformly distributed and formed in a base plate of the overwintering box body; the overwintering net bag is composed of a supporting frame, nylon net cloth and a zipper, and the overwintering net bag is matched with, attached to and installed in the overwintering box body. The method is simple, the survival rate is high, the cost is low, and the method is suitable for industrialized leech overwintering breeding; cross infection is avoided, the leech disease occurrence rate of the overwintered leeches is extremely low, and the overwintered leeches are effectively prevented from large-scale deaths. The labor force is saved, and the management is facilitated. The problems are solved that in existing indoor leech overwintering breeding, the occupied space is large, the leech throwing density is low, the management is troublesome, the overwintered leech weight-loss ratio is high, the yield is low, and high-density overwintering breeding requirements are difficult to meet.

Description

technical field [0001] The invention relates to an overwintering breeding method for artificially breeding leeches, which belongs to the technical field of leech breeding. Background technique [0002] With the increase of harvesting amount year by year, the population of wild leeches is decreasing day by day, and it is imperative to cultivate leeches artificially. At present, leeches are cultured for overwintering, mainly utilizing outdoor ditches, ponds, cement pools and indoor paddy field soil for cold-proof cultivation. The survival rate of overwintering in outdoor ponds and cement ponds is low, and the survival rate of overwintering in outdoor furrows and indoor paddy fields is relatively high, but they occupy a large area, the density of leeches is low, and management is troublesome, which cannot meet the requirements of high-density overwintering. How to realize high-density feeding, high survival rate, easy management, simple operation, low cost and improved yield o...

Claims

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Application Information

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IPC IPC(8): A01K61/40
CPCA01K61/40
Inventor 龚元
Owner JINGZHOU PUBLIC KANG BIOTECH
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