CN106614171B - A kind of integrated breeding method of efficient crab seedling rearing - Google Patents
A kind of integrated breeding method of efficient crab seedling rearing Download PDFInfo
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- CN106614171B CN106614171B CN201510755297.7A CN201510755297A CN106614171B CN 106614171 B CN106614171 B CN 106614171B CN 201510755297 A CN201510755297 A CN 201510755297A CN 106614171 B CN106614171 B CN 106614171B
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
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- Y02A40/00—Adaptation technologies in agriculture, forestry, livestock or agroalimentary production
- Y02A40/80—Adaptation technologies in agriculture, forestry, livestock or agroalimentary production in fisheries management
- Y02A40/81—Aquaculture, e.g. of fish
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Abstract
A kind of integrated breeding method of efficient crab seedling rearing, comprising the following steps: (1) Integrated design in crab seedling rearing pond；(2) rich water and microorganisms；(3) Nitzschia closterium minutissima is cultivated；(4) culture of rotifera；(5) cultivation of juvenile crab.Growing-seedling period is shortened, facility is simple, at low cost, and wheel animalcule not only keeps the reproduction speed of wheel animalcule using microorganism, Nitzschia closterium minutissima as bait, but also improves the disease resistance of wheel animalcule, and nutritive index is good, and nursery water environment is good.River crab zoea is ingested after high-quality wheel animalcule, and constitution enhancing, the survival rate of the young is increased to 70%-80% from 40%-45%, to increase unit aquatic products benefit.
Description
Technical field
The present invention relates to the cultural method of river crab, especially a kind of efficient crab seedling rearing integrates breeding method.
Background technique
Since reform and opening-up, national economy rapid growth, " scientific and technical innovation, autonomous innovation " has become domestic industry development
Mainstream.China's industry just develops to the direction of intensive style, energy-saving and emission-reduction, low-carbon step by step.Brachionus plicatilis is a kind of small-sized
Many cells aquatile, be distributed widely in brackish water and body of sea water, be artificial culture fish, shrimp, the crab young it is high-quality
Food organisms.Currently, generating microorganism with chicken manure fermenting in conventional rotifer breeding ponds, generating microorganism and take 6-8 days, the time is long,
Rotifer breeding ponds utilization efficiency is low.In addition, cement pit nursery indoors, a large amount of man-made feeds are fed in limited water body, are added
Young density it is big, nutrition, water environment are difficult to meet the physiological ecological demand of juvenile crab growth and development, turn out come juvenile crab quality
It is difficult guaranteed, in order to solve this problem, the technical staff of R&D institution and enterprise is constantly exploring, studying, it is desirable to look for
A kind of more efficient crab seedling rearing method remains still in practice although making some progress out
The technical issues of not overcoming.
Summary of the invention
It is an object of the invention to overcome the above deficiency, a kind of integrated breeding method of efficient crab seedling rearing is provided.It can integrate
Juvenile crab is cultivated, it is easy to operate, improve the breeding efficiency and survival rate of juvenile crab.
The technical solution adopted by the present invention to solve the technical problems is:
A kind of integrated breeding method of efficient crab seedling rearing, comprising the following steps:
(1), the Integrated design in crab seedling rearing pond: microorganism culture pond, Nitzschia closterium minutissima culture pond, rotifer breeding ponds and river
The area of crab nursery pond is 1: 1: 1: 1, and pond body is East and West direction rectangle Tu Chi, 100 meters, 28 meters wide, deep 1.2m long, installs power
System, bottom of pond and is surrounded by mixed mud layer, and half mud, half sand bed is equipped with above bottom of pond mixed mud layer, and water storage is deep after quick lime is cleaned up the pond
50cm；
(2), rich water and microorganisms: chicken manure, duck excrement, pig manure rich water are added in microorganism culture pond, adds ferment
Mother's fermentation generates micropopulation, and chicken manure, duck excrement, pig manure ratio are 3: 1: 1, in an amount 2-3m per acre3Throwing is spread, and early spring or late fall exist
Microorganism culture pond increases greenhouse；
(3), it cultivates Nitzschia closterium minutissima: the water of microorganisms group being put into Nitzschia closterium minutissima culture pond and cultivates crescent
Diamond shape algae；
(4), culture of rotifera: trichlorphon raw medicine 3-4g/m is used3Harmful organism in rotifer breeding ponds is removed, wheel is kept
18-22 DEG C of temperature, pH value 7.8-8.5, it is direct to extract Nitzschia closterium minutissima water with water pump for worm culture pond seawater salinity 13 ‰ -15 ‰
Wheel animalcule is fed, water body is stirred by constantly extracting wheel animalcule and the system that turns on the power, wheel animalcule is allowed to maintain the peak period of a period of time,
280/ml of wheel animalcule density is kept, when wheel animalcule density deficiency, soya-bean milk is added；
(5), the cultivation of juvenile crab: Mitten Crab Larvae is launched into river crab culture pond, and throw-in density is 1 × 104A/m3, installation
One, aerator, the natural temperature of nursery is recycled with water pump between 22-25 DEG C and extracts wheel animalcule, and with after 200 mesh net filtrations
Feed Mitten Crab Larvae, it is 2-3/ml that wheel animalcule, which feeds density, after zoea development is to megalops larva, draws in the net to catch after 4-5 days
Fish out juvenile crab.
The beneficial effects of the present invention are: shortening growing-seedling period, just generates microorganism within 4-5 days, shorten 2-3 days time.
Facility is simple, at low cost, and wheel animalcule not only keeps the reproduction speed of wheel animalcule using microorganism, Nitzschia closterium minutissima as bait, but also improves wheel
The disease resistance of worm, nutritive index is good, and nursery water environment is good.River crab zoea is ingested after high-quality wheel animalcule, constitution enhancing, children
The survival rate of body is increased to 70%-80% from 40%-45%, to increase unit aquatic products benefit.
Detailed description of the invention
Here is to further describe in conjunction with the accompanying drawings and embodiments to the present invention:
Fig. 1 is a kind of integrated culture pond structural schematic diagram of crab seedling rearing；
Fig. 2 is a kind of integrated culture pond cross-sectional view of crab seedling rearing；
In figure: 1, microorganism culture pond, 2, Nitzschia closterium minutissima culture pond, 3, rotifer breeding ponds, 4, crab seedling rearing pond, 5,
Half mud, half sand bed, 6, mixed mud layer.
Specific embodiment
In Fig. 1, including microorganism culture pond 1, Nitzschia closterium minutissima culture pond 2, rotifer breeding ponds 3, crab seedling rearing pond 4,
It include half mud, half sand bed 5, mixed mud layer 6 in Fig. 2, crab seedling rearing integrates the bottom of pond of culture pond and is surrounded by mixed mud layer 6,
Bottom of pond mixed mud layer 6 is equipped with half mud, half sand bed 5 above, and chicken manure, duck excrement, pig manure, saccharomycete training are added in microorganism culture pond 1
It supports and generates micropopulation, the water of microorganisms group is put into Nitzschia closterium minutissima culture pond 2, will grow up molding crescent water chestnut
Shape algae is put into rotifer breeding ponds 3, then the wheel animalcule to grow up is put and feeds juvenile crab in people's crab seedling rearing pond 4, microorganism culture pond 1,
Nitzschia closterium minutissima culture pond 2,3 area of rotifer breeding ponds are 2800 square metres, and 1 meter of the depth of water, crab seedling rearing pool area is 2800 flat
Square rice, installs one, aerator by 1.2 meters of the depth of water, and the natural temperature of nursery is recycled with water pump between 22-25 DEG C and extracts wheel animalcule,
And with feeding Mitten Crab Larvae after 200 mesh net filtrations.
Embodiment 1
It is integrated to cultivate high-quality healthy juvenile crab, it selects natural temperature to stablize in 23 DEG C of suitable sea water aquiculture larva rearing ponds, uses
Trichlorphon raw medicine 3-4g/m3It cleans up the pond and kills harmful organism, water body disinfection processing is carried out after water inlet, after nursery pond drug effect disappears
Mitten Crab Larvae is launched, throw-in density is 10,000 tails/m3, after the young is launched, the wheel animalcule in rotifer breeding ponds 3 is recycled with water pump and is taken out
The screen to filtrate of 200 mesh is taken and used, is fed after concentrated in crab seedling rearing pond 4；It is 2-3/ml that wheel animalcule, which feeds density, and is protected
Hold wheel animalcule density；Wheel animalcule is fed using Nitzschia closterium minutissima with microorganism, extracts the training of crescent diamond shape with water pump when feeding wheel animalcule
Water in pond 2 is supported directly to feed.It had not only kept the breeding of wheel animalcule to hasten in this way, but also has improved the disease resistance of wheel animalcule.Microorganism, crescent
Diamond shape algae and wheel animalcule are all made of independent culture, and after zoea development is to megalops larva, juvenile crab is caught in seine after 4-5 days.River
4 pool optimum plot size of crab nursery pond is 3-5 mus, 2 meters of the depth of water, installs one, aerator.3-5 mus of 2 area of Nitzschia closterium minutissima culture pond
It is advisable, 1 meter of the depth of water or so；3-5 mus of 3 area of rotifer breeding ponds is advisable, and 1 meter of the depth of water.
Embodiment 2
Nursery pond optimum plot size is 5 mu, 2 meters of the depth of water, installs aerator better effect.2 face of Nitzschia closterium minutissima culture pond
1-3 mus of product is advisable, and 1 meter of the depth of water or so；1-5 mus of 3 area of rotifer breeding ponds is advisable, and 1 meter of the depth of water.
Mitten Crab Larvae is launched in crab seedling rearing pond 4, for the natural temperature of nursery at 22-25 DEG C, throw-in density is 20,000 tails/m3,
After the young is launched, wheel animalcule is fed.By the wheel animalcule in rotifer breeding ponds 3 with water pump recycle extract and use the screen to filtrate of 250 mesh, pass through
It is fed after concentration in crab seedling rearing pond 4；It is 3-4/ml that wheel animalcule, which feeds density, and keeps wheel animalcule density.Wheel animalcule uses crescent
Diamond shape algae is fed, and extracts water with water pump in Nitzschia closterium minutissima culture pond 2, feeds in rotifer breeding ponds 3.
Claims (1)
1. a kind of efficient crab seedling rearing integrates breeding method, it is characterised in that the following steps are included:
(1), the Integrated design in crab seedling rearing pond: microorganism culture pond, Nitzschia closterium minutissima culture pond, rotifer breeding ponds and river crab educate
The area of Miao Chi is 1: 1: 1: 1, and pond body is East and West direction rectangle Tu Chi, 100 meters, 28 meters wide, deep 1.2m long, installs dynamical system
System, bottom of pond and is surrounded by mixed mud layer, and half mud, half sand bed is equipped with above bottom of pond mixed mud layer, and water storage is deep after quick lime is cleaned up the pond
50cm；
(2), rich water and microorganisms: being added chicken manure, duck excrement, pig manure rich water in microorganism culture pond, adds yeast hair
Ferment generates micropopulation, and chicken manure, duck excrement, pig manure ratio are 3: 1: 1, in an amount 2-3m per acre3Throwing is spread, and early spring or late fall are in micro- life
Object culture pond increases greenhouse；
(3), it cultivates Nitzschia closterium minutissima: the water of microorganisms group is put into culture crescent diamond shape in Nitzschia closterium minutissima culture pond
Algae；
(4), culture of rotifera: trichlorphon raw medicine 3-4g/m is used3Harmful organism in rotifer breeding ponds is removed, wheel animalcule training is kept
Pond seawater salinity 13 ‰ -15 ‰ is educated, 18-22 DEG C of temperature, pH value 7.8-8.5, Nitzschia closterium minutissima water is extracted with water pump and directly feeds
Wheel animalcule allows wheel animalcule to maintain the peak period of a period of time, keeps by constantly extracting wheel animalcule and the system agitation water body that turns on the power
Soya-bean milk is added when wheel animalcule density deficiency in 280/ml of wheel animalcule density；
(5), the cultivation of juvenile crab: Mitten Crab Larvae is launched into river crab culture pond, and throw-in density is 1 × 104A/m3, oxygenation is installed
One, machine, the natural temperature of nursery is recycled with water pump between 22-25 DEG C and extracts wheel animalcule, and with feeding after 200 mesh net filtrations
Mitten Crab Larvae, it is 2-3/ml that wheel animalcule, which feeds density, and after zoea development is to megalops larva, crab is caught in seine after 4-5 days
Seedling.
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| CN108719151A (en) * | 2018-05-15 | 2018-11-02 | 盘锦光合蟹业有限公司 | A kind of circulating outdoor earth pond wheel animalcule culture apparatus and method |
| CN111264430A (en) * | 2020-03-03 | 2020-06-12 | 昆明医科大学 | Method for breeding rabdosia lophanthide in laboratory |
| CN112544544B (en) * | 2020-12-10 | 2023-05-16 | 棠香铁山(重庆)智慧农业科技有限公司 | Out-of-season crayfish culture system and control method |
| CN115486393B (en) * | 2022-10-09 | 2023-07-04 | 中国水产科学研究院淡水渔业研究中心 | Engineering circulating water system structure and method for culturing live baits of crab seedlings |
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