CN105104261A - Polyculture method for grass carp and penaeus vannamei - Google Patents

Abstract

The invention relates to a polyculture method for grass carp and penaeus vannamei. The polyculture method comprises the following steps of selecting a pond; sterilizing the pond; culturing food organisms; releasing fry; carrying out pest control. The productive potential of the pond is brought into full play, viral diseases of penaeus vannamei are prevented, and the comprehensive benefits of pond culture are improved.

Description

A kind of grass carp and South America prawn polyculture method

Technical field

A kind of grass carp of the present invention and South America prawn polyculture method, belong to aquaculture method, special grass carp and South America prawn are raised together with.

Background technology

Penaeus Vannmei is one of large excellent shrimp species in the world three.After Chinese prawn morbidity in 1993, China falls into low ebb from the first in the world Yang Xia big country status, and Culture of Penaeus Chinensis is absorbed in the great depression.Scientific worker, for revitalizing shrimp culture industry in continuous exploration, introduces Penaeus Vannmei and nursery success, because its premium properties becomes main shrimp culture kind from external in 1996.Cultivate face at home comparatively wide, shrimp seedling can be fed after desalination in freshwater, is the shrimp species that in current three large cultured prawns in the world, single rate is the highest.

Grass carp is herbivorous fishes at the middle and upper levels, fast growth, two ages in winter can reach 2.5 ~ 3kg, and large grass carp has heavy tens kg, is grow the fastest one in chinese carp.How to raise together with South America prawn and grass carp, and production benefit is well the problem that numerous raisers are concerned about.

Summary of the invention

Technical problem to be solved by this invention is to provide a kind of grass carp and South America prawn polyculture method, gives full play to the productive potential in pond, and the generation of prevention white shrimp virus disease, improves the comprehensive benefit of pond culture.

The cultural method that the present invention adopts, comprises the steps:

Select pond: select near water source, the depth of water 1.3 ~ 1.5m, mud is not dark, the pond that water quality is good;

To clean up the pond sterilization: drained by the ponding in pond, remove mud at the bottom of pond with slush pump, 10 ~ 20cm is ploughed in face, pond, tan by the sun 20 days, evenly apply pond with quicklime, lime disinfection is after 10 days, band water sterilization is carried out to pond, water inlet 20 ~ 30cm, after soaking with tea seed cake, press 20g/m ³full pool spilling head, is full pool spilling head after 1.5kg/ mu bleaching powder warm water dissolves by amount, drains Chi Shui after 2 days;

Cultivate food organisms: filter all fish-eggs and juvenile fish during water inlet, will be netted, after water inlet and before putting shrimp seedling 7 ~ 10 days, every mu of fertilizer used after 20kg fermentating drying, when water temperature reaches more than 18 DEG C, according to kind and the quantity of hydroplankton, use beneficial bacterium, if water colour overrich, water transparency is too low, uses bacillus, if water colour is lighter, water transparency is too high, use photosynthetic bacteria, if the higher muddiness of water body pH, use Bacillus acidi lactici;

Put seedling: with quicklime, sea-water extract, the acid-base value of intermediate rearing Chi Shui and salinity are transferred to numerical value when going out pond close to shrimp seedling field shrimp seedling, acid-base value is generally 8.2 ~ 8.6, salinity is generally 2 ‰ ~ 3 ‰, when water temperature is more than 18 DEG C, throws in the Penaeus Vannmei seedling that body long size is 1.0 ~ 1.2cm, put 70,000 tails in a suitable place to breed for every mu, when Penaeus Vannmei body reaches more than 4.5cm, throw in two age grass carp seedling, specification is 0.35 ~ 0.4kg/ tail, every mu of 400 ~ 500 tails;

The extermination of disease and insect pest: stabilizing water quality, the pharmaceutical chemistry that two weeks once adds three blooms in grass carp bait, allicin is made, throws something and feeds 3 days, and every two weeks chlorinated product, bromine preparation and Operand are to water body disinfection.

The invention has the beneficial effects as follows: the productive potential giving full play to pond, the generation of prevention white shrimp virus disease, improves the comprehensive benefit of pond culture.

Embodiment

Be described principle of the present invention and feature below in conjunction with example, example, only for explaining the present invention, is not intended to limit scope of the present invention.

A kind of grass carp of the present invention and South America prawn polyculture method,

Select near water source, the depth of water 1.3 ~ 1.5m, mud is not dark, the pond that water quality is good;

Drained by ponding in pond, remove mud at the bottom of pond with slush pump, 10 ~ 20cm is ploughed in face, pond, tans by the sun 20 days, evenly applies pond with quicklime, and lime disinfection, after 10 days, carries out band water sterilization to pond, water inlet 20 ~ 30cm, presses 20g/m after soaking with tea seed cake ³full pool spilling head, is full pool spilling head after 1.5kg/ mu bleaching powder warm water dissolves by amount, drains Chi Shui after 2 days;

Filter all fish-eggs and juvenile fish to be netted, after water inlet and before putting shrimp seedling 7 ~ 10 days, every mu of fertilizer used after 20kg fermentating drying during water inlet, when water temperature reaches more than 18 DEG C, according to kind and the quantity of hydroplankton, use beneficial bacterium, if water colour overrich, water transparency is too low, uses bacillus, if water colour is lighter, water transparency is too high, use photosynthetic bacteria, if the higher muddiness of water body pH, use Bacillus acidi lactici;

With quicklime, sea-water extract, the acid-base value of intermediate rearing Chi Shui and salinity are transferred to numerical value when going out pond close to shrimp seedling field shrimp seedling, acid-base value is generally 8.2 ~ 8.6, salinity is generally 2 ‰ ~ 3 ‰, when water temperature is more than 18 DEG C, throws in the Penaeus Vannmei seedling that body long size is 1.0 ~ 1.2cm, put 70,000 tails in a suitable place to breed for every mu, when Penaeus Vannmei body reaches more than 4.5cm, throw in two age grass carp seedling, specification is 0.35 ~ 0.4kg/ tail, every mu of 400 ~ 500 tails;

Stabilizing water quality, the pharmaceutical chemistry that two weeks once adds three blooms in grass carp bait, allicin is made, throws something and feeds 3 days, and every two weeks chlorinated product, bromine preparation and Operand are to water body disinfection.

After raising through three, four months reaches listing specification, off line at dusk, morning is caught.

Claims (1)

1. grass carp and a South America prawn polyculture method, comprise the steps:

Select pond: select near water source, the depth of water 1.3 ~ 1.5m, mud is not dark, the pond that water quality is good;

To clean up the pond sterilization: drained by the ponding in pond, remove mud at the bottom of pond with slush pump, 10 ~ 20cm is ploughed in face, pond, tan by the sun 20 days, evenly apply pond with quicklime, lime disinfection is after 10 days, band water sterilization is carried out to pond, water inlet 20 ~ 30cm, after soaking with tea seed cake, press 20g/m ³full pool spilling head, is full pool spilling head after 1.5kg/ mu bleaching powder warm water dissolves by amount, drains Chi Shui after 2 days;

Cultivate food organisms: filter all fish-eggs and juvenile fish during water inlet, will be netted, after water inlet and before putting shrimp seedling 7 ~ 10 days, every mu of fertilizer used after 20kg fermentating drying, when water temperature reaches more than 18 DEG C, according to kind and the quantity of hydroplankton, use beneficial bacterium, if water colour overrich, water transparency is too low, uses bacillus, if water colour is lighter, water transparency is too high, use photosynthetic bacteria, if the higher muddiness of water body pH, use Bacillus acidi lactici;

Put seedling: with quicklime, sea-water extract, the acid-base value of intermediate rearing Chi Shui and salinity are transferred to numerical value when going out pond close to shrimp seedling field shrimp seedling, acid-base value is generally 8.2 ~ 8.6, salinity is generally 2 ‰ ~ 3 ‰, when water temperature is more than 18 DEG C, throws in the Penaeus Vannmei seedling that body long size is 1.0 ~ 1.2cm, put 70,000 tails in a suitable place to breed for every mu, when Penaeus Vannmei body reaches more than 4.5cm, throw in two age grass carp seedling, specification is 0.35 ~ 0.4kg/ tail, every mu of 400 ~ 500 tails;

The extermination of disease and insect pest: stabilizing water quality, the pharmaceutical chemistry that two weeks once adds three blooms in grass carp bait, allicin is made, throws something and feeds 3 days, and every two weeks chlorinated product, bromine preparation and Operand are to water body disinfection.