CN104365560A - Leech breeding method - Google Patents

Abstract

The invention belongs to the field of aquaculture, and particularly relates to a leech breeding method. The leech breeding method includes the following steps of (1) young leech culturing, (2) pool treatment, (3) young leech stocking and (4) water level control, wherein bacillus cereus and effective microorganisms (EM)are applied to a pool to regulate the water quality. Through the improved breeding method, the rate of survival in the leech breeding process is increased, the breeding density is increased, and the economical benefits of breeding are increased.

Description

The cultural method of a kind of leech

Technical field

The invention belongs to aquaculture field, be specifically related to the cultural method of a kind of leech.

Background technology

Leech, popular name leech, leech, belong to Annelida, Hirudinea, Gnathobdellida, Hirudinidae, growth and breeding in the freshwater of inland is the traditional medicinal aquatic animal of special type of China, leech contains hirudin, can delay and hinder blood coagulation, thus having blood coagulation resisting function.Its dried product is concocted the rear traditional Chinese medical science and is used as medicine, and has the effect such as treatment apoplexy, hypertension, the clear stasis of blood, amenorrhoea, traumatic injury.Medicinal material hirudiniculture, as a new industry of modern agriculture, be supported it not difficult, but it is lower to breed survival rate, can not carry out high-density breeding.

Summary of the invention

For solving the defect that in existing cultivation leech process, survival rate is lower, the invention provides the cultural method of a kind of leech, improve the survival rate of cultivation.

The present invention is realized by following technological means:

A cultural method for leech, comprises the following steps:

(1), the nursery of leech: choose healthy kind leech and cultivate, kind of leech is dropped into obstetric table breed, to gather after 18-25 days ovum cocoon, the ovum cocoon of collection is put into hatching house, control hatching house temperature is 28-31 DEG C, humidity is that 75-85% is hatched, during hatching, illumination is carried out to ovum cocoon, hatch seedling;

(2), the process in pond: pond is arranged profundal zone and phytal zone, in pond, bank slope is set, bank slope is planted broad-leaved class pasture and water, be convenient to leech perch, in water, plant pasture and water, increase dissolved oxygen in water, the PH of regulating reservoir water is 7.0-9.0, in pond, throw in 200-250kg snail by every mu, allow its self-sow breed, for leech provides animal bait;

(3), the putting in a suitable place to breed of leech seedling: throw in into pond by the leech seedling hatched by 10-15 ten thousand tails/mu, be keep the dissolved oxygen amount in water, every 3-5 days to water filling in pond once, each water filling 10-15cm, monthly drops into snail 180-220kg/ mu and feed in pond;

(4), water lev el control: 3-May the depth of water control at 0.5-0.6 meter, 6-August, the depth of water controlled at 0.8-1.0 meters, and 9-October, the depth of water controlled at 0.7-0.8 meter, and 11-February, the depth of water controlled at 0.4-0.5 rice.

Every first quarter moon uses bacillus, EM probio regulating water quality in pond.

Seed selection leech: the individuality of seedling more greatly, more healthy and stronger, its egg laying amount, incubation rate and seedling quality higher (more than two ages being best), for leech seedlings such as those morbid state, hybrid, disabilities, all should reject.

The cement pit just built up can not throw in leech seedling immediately, after the alkaline matter of its pond body must neutralize with the material of some acidity, PH is made to be adjusted to 7.0-8.0, could throw in after soaking (more than 20 days) desalination for a long time again, after the overall balance of culturing pool total environment condition trend food chain, leech seedling can be dropped into.

Chi Zhongxu keeps certain pasture and water, and pasture and water area coverage accounts for 40%-60% of water surface area, can promote the oxygen content in water, also can prevent water temperature over-high.

For the culturing pool that water source is bad, should water source purifying and sterilization be carried out, special close net (50 order) can be added at total water inlet and filter, enter culturing pool to avoid wild trash fish and harmful organisms.

Beneficial effect of the present invention: the present invention, by improving cultural method, improves survival rate during cultivation leech, adds cultivation density, add the economic benefit of cultivation.

Embodiment

A cultural method for leech, comprises the following steps:

(1), the nursery of leech: choose healthy kind leech and cultivate, kind of leech is dropped into obstetric table breed, to gather after 18-25 days ovum cocoon, the ovum cocoon of collection is put into hatching house, control hatching house temperature is 28-31 DEG C, humidity is that 75-85% is hatched, during hatching, illumination is carried out to ovum cocoon, hatch seedling;

(2), the process in pond: pond is arranged profundal zone and phytal zone, in pond, bank slope is set, bank slope is planted broad-leaved class pasture and water, be convenient to leech perch, in water, plant pasture and water, increase dissolved oxygen in water, the PH of regulating reservoir water is 7.0-9.0, in pond, throw in 200-250kg snail by every mu, allow its self-sow breed, for leech provides animal bait;

(3), the putting in a suitable place to breed of leech seedling: the leech seedling hatched is thrown in into pond by 10-15 ten thousand tails/mu, for keeping the dissolved oxygen amount in water, every 3-5 days to water filling in pond once, each water filling 10-15cm, in pond, monthly drop into snail 180-220kg/ mu feed, every first quarter moon uses bacillus, EM probio regulating water quality in pond;

(4), water lev el control: 3-May the depth of water control at 0.5-0.6 meter, 6-August, the depth of water controlled at 0.8-1.0 meters, and 9-October, the depth of water controlled at 0.7-0.8 meter, and 11-February, the depth of water controlled at 0.4-0.5 rice.

Claims (2)

1. a cultural method for leech, is characterized in that, comprises the following steps:

(1), the nursery of leech: choose healthy kind leech and cultivate, kind of leech is dropped into obstetric table breed, to gather after 18-25 days ovum cocoon, the ovum cocoon of collection is put into hatching house, control hatching house temperature is 28-31 DEG C, humidity is that 75-85% is hatched, during hatching, illumination is carried out to ovum cocoon, hatch seedling;

(2), the process in pond: pond is arranged profundal zone and phytal zone, in pond, bank slope is set, bank slope is planted broad-leaved class pasture and water, be convenient to leech perch, in water, plant pasture and water, increase dissolved oxygen in water, the PH of regulating reservoir water is 7.0-9.0, in pond, throw in 200-250kg snail by every mu, allow its self-sow breed, for leech provides animal bait;

(3), the putting in a suitable place to breed of leech seedling: throw in into pond by the leech seedling hatched by 10-15 ten thousand tails/mu, be keep the dissolved oxygen amount in water, every 3-5 days to water filling in pond once, each water filling 10-15cm, monthly drops into snail 180-220kg/ mu and feed in pond;

(4), water lev el control: 3-May the depth of water control at 0.5-0.6 meter, 6-August, the depth of water controlled at 0.8-1.0 meters, and 9-October, the depth of water controlled at 0.7-0.8 meter, and 11-February, the depth of water controlled at 0.4-0.5 rice.

2. the cultural method of a kind of leech according to claim 1, is characterized in that: every first quarter moon uses bacillus, EM probio regulating water quality in pond.