CN106614171A - High-efficiency river crab seedling growing integrated cultivation method - Google Patents
High-efficiency river crab seedling growing integrated cultivation method Download PDFInfo
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- CN106614171A CN106614171A CN201510755297.7A CN201510755297A CN106614171A CN 106614171 A CN106614171 A CN 106614171A CN 201510755297 A CN201510755297 A CN 201510755297A CN 106614171 A CN106614171 A CN 106614171A
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- pond
- crab
- water
- wheel animalcule
- nitzschia closterium
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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
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- 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
Abstract
A high-efficiency river crab seedling growing integrated cultivation method comprises the following steps: 1, integrated design of a river crab seedling growing pool; 2, water fertilizing and microorganism cultivation; 3, Nitzschia closterium cultivation; 4, rotifer cultivation; and 5, river crab seedling cultivation. The method shortens the seedling growing period, is simple in facility and low in cost, and has good nutrient indices and a good seedling growing water environment. The rotifers feed on microorganisms and Nitzschia closterium, so that the breeding speed of the rotifers is maintained and the disease resistance of the rotifers is improved. After zoea larvae of river crabs feed on the high quality rotifers, the physique of the river crabs is enhanced, the survival rate of the larvae is increased from 40-45% to 70-80%, so that the unit aquatic product benefit is increased.
Description
Technical field
The present invention relates to the cultural method of river crab, the integrated breeding method of particularly a kind of efficient crab seedling rearing.
Background technology
Since reform and opening-up, national economy rapid growth, " scientific and technical innovation, autonomous innovation " has become the master of domestic industry development
Stream.Direction of China's industry just step by step to intensive style, energy-saving and emission-reduction, low-carbon (LC) is developed.Brachionus plicatilis are a kind of small-sized
Many cells aquatile, is distributed widely in brackish water and body of sea water, is the high-quality bait of artificial culture fish, shrimp, the crab young
Material is biological.At present, microorganism is produced with chicken manure fermenting in conventional rotifer breeding ponds, produces microorganism and take 6-8 days, the time is long,
Rotifer breeding ponds utilization ratio is low.In addition, cement pit nursery indoors, feeds a large amount of man-made feeds in limited water body, plus
Young density it is big, nutrition, water environment are difficult to meet the physiological ecological demand that juvenile crab grows, and turn out the juvenile crab quality come
It is difficult to guaranteed, in order to solve this problem, R＆D institution and the technical staff of enterprise are explored constantly, research, it is desirable to look for
Go out a kind of crab seedling rearing method in hgher efficiency, although make some progress, but remain not yet in practice
The technical problem for overcoming.
The content of the invention
It is an object of the invention to overcome the above not enough, there is provided a kind of integrated breeding method of efficient crab seedling rearing.Can integrated cultivation crab
Seedling, it is easy to operate, improve the cultivation efficiency and survival rate of juvenile crab.
The technical solution adopted for the present invention to solve the technical problems is：
A kind of integrated breeding method of efficient crab seedling rearing, comprises 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 crab educate
The area of Miao Chi is 1: 1: 1: 1, and pond body is East and West direction rectangle Tu Chi, long 100 meters, and wide 28 meters, deep 1.2m installs power
System, bottom of pond and is formed around mixed mud layer, is provided with the sand bed of half mud half above bottom of pond mixed mud layer, quick lime clean up the pond after retaining depth
50cm；
(2), rich water and microorganisms：Chicken manure, duck excrement, pig manure rich water are added in microorganism culture pond, yeast is added and is sent out
Ferment produces micropopulation, and chicken manure, duck excrement, pig manure ratio are 3: 1: 1, in an amount every mu of 2-3m3Throwing is spread, and early spring or late fall are micro-
Biological culture pond increases warmhouse booth；
(3), Nitzschia closterium minutissima is cultivated：The water of microorganisms group is put into Nitzschia closterium minutissima culture pond and cultivates Nitzschia closterium minutissima；
(4), culture of rotifera：Using trichlorphon active compound 3-4g/m3Harmful organism in rotifer breeding ponds is removed, wheel animalcule training is kept
Pond seawater salinity 13 ‰ -15 ‰ is educated, temperature 18-22 DEG C, pH value 7.8-8.5 extracts Nitzschia closterium minutissima water and directly feeds wheel with water pump
Worm, by constantly extracting wheel animalcule and the system that turns on the power water body is stirred, and allows wheel animalcule to maintain the peak period of a period of time, keeps wheel
280/ml of worm density, when wheel animalcule density is not enough, adds soya-bean milk；
(5), the cultivation of juvenile crab：Mitten Crab Larvae is rendered in river crab culture pond, it is 1 × 10 to throw in density4Individual/m3, oxygenation is installed
One, machine, the natural temperature of nursery extracts wheel animalcule between 22-25 DEG C with water pump circulation, and with feeding after 200 mesh sieve net filtrations
Mitten Crab Larvae, it is 2-3/ml that wheel animalcule feeds density, after zoea development is to megalops larva, draws in the net to fish for crab after 4-5 days
Seedling.
The invention has the beneficial effects as follows：Growing-seedling period is shortened, microorganism is just produced within 4-5 days, 2-3 days time is shortened.Facility
Simply, low cost, wheel animalcule keeps the reproduction speed of wheel animalcule with microorganism, Nitzschia closterium minutissima as bait, both, and wheel animalcule is improve again
Disease resistance, nutritive index is good, and nursery water environment is good.River crab zoea is ingested after high-quality wheel animalcule, and physique strengthens, children
The survival rate of body brings up to 70%-80% from 40%-45%, so as to increased unit aquatic products benefit.
Description of the drawings
It is presented herein below the present invention is further described in conjunction with the accompanying drawings and embodiments：
Fig. 1 is a kind of integrated culture pond structural representation of crab seedling rearing；
Fig. 2 is a kind of integrated culture pond sectional view of crab seedling rearing；
In figure：1st, microorganism culture pond, 2, Nitzschia closterium minutissima culture pond, 3, rotifer breeding ponds, 4, crab seedling rearing pond, 5,
The sand bed of half mud half, 6, mixed mud layer.
Specific embodiment
In FIG, including microorganism culture pond 1, Nitzschia closterium minutissima culture pond 2, rotifer breeding ponds 3, crab seedling rearing pond 4,
Include the sand bed 5 of half mud half, mixed mud layer 6 in fig. 2, the bottom of pond of the integrated culture pond of crab seedling rearing and be formed around mixed mud layer 6,
Bottom of pond mixed mud layer 6 is provided with the sand bed 5 of half mud half above, and chicken manure, duck excrement, pig manure, yeast are added in microorganism culture pond 1
Bacterium culture produces micropopulation, the water of microorganisms group is put into Nitzschia closterium minutissima culture pond 2, by the new of shaping of growing up
Month rhombus algae is put into rotifer breeding ponds 3, then the wheel animalcule for growing up is put feed in people's crab seedling rearing pond 4 juvenile crab, and microorganism is cultivated
Pond 1, Nitzschia closterium minutissima culture pond 2, the area of rotifer breeding ponds 3 are 2800 square metres, 1 meter of the depth of water, crab seedling rearing pool area
For 2800 square metres, 1.2 meters of the depth of water installs one, aerator, and the natural temperature of nursery is followed between 22-25 DEG C with water pump
Lottery of lotteries takes wheel animalcule, and with feeding Mitten Crab Larvae after 200 mesh sieve net filtrations.
Embodiment 1
Integrated cultivation high-quality health juvenile crab, selects natural temperature stable in 23 DEG C of suitable sea water aquiculture larva rearing ponds, is opposed using crystal
Hundred worm active compounds 3-4g/m3Clean up the pond and kill harmful organism, laggard water-filling body of intaking is disinfected, and nursery pond drug effect throws in river after disappearing
The crab young, input density is 10,000 tails/m3, after the young is thrown in, the wheel animalcule in rotifer breeding ponds 3 is extracted with water pump circulation and is used in combination
The screen filtration of 200 mesh, it is concentrated after feed in crab seedling rearing pond 4；It is 2-3/ml that wheel animalcule feeds density, and keeps wheel
Worm density；Wheel animalcule is fed using Nitzschia closterium minutissima with microorganism, and crescent rhombus culture pond 2 is extracted with water pump when feeding wheel animalcule
Middle water directly feeds.So both kept the breeding of wheel animalcule to hasten, the disease resistance of wheel animalcule had been improve again.Microorganism, crescent rhombus
Algae and wheel animalcule using individually culture, after zoea development is to megalops larva, draw in the net to fish for juvenile crab after 4-5 days.River crab educates
The pool optimum plot size of seedling pond 4 is 3-5 mus, and 2 meters of the depth of water installs one, aerator.The area 3-5 mus of Nitzschia closterium minutissima culture pond 2
It is advisable, 1 meter or so of the depth of water；The area 3-5 mus of rotifer breeding ponds 3 are advisable, 1 meter of the depth of water.
Embodiment 2
Nursery pond optimum plot size is 5 mu, and 2 meters of the depth of water installs aerator better.The area of Nitzschia closterium minutissima culture pond 2
1-3 mus are advisable, 1 meter or so of the depth of water；The area 1-5 mus of rotifer breeding ponds 3 are advisable, 1 meter of the depth of water.
Mitten Crab Larvae is thrown in crab seedling rearing pond 4, at 22-25 DEG C, input density is 20,000 tails/m to the natural temperature of nursery3, children
After body is thrown in, wheel animalcule is fed.Wheel animalcule in rotifer breeding ponds 3 is extracted and with the screen filtration of 250 mesh, Jing with water pump circulation
During crab seedling rearing pond 4 is fed after concentration；It is 3-4/ml that wheel animalcule feeds density, and keeps wheel animalcule density.Wheel animalcule is using new
Moon rhombus algae nursing, extracts water, in feeding rotifer breeding ponds 3 in Nitzschia closterium minutissima culture pond 2 with water pump.
Claims (1)
1. the integrated breeding method of a kind of efficient crab seedling rearing, it is characterised in that comprise 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 crab educate
The area of Miao Chi is 1: 1: 1: 1, and pond body is East and West direction rectangle Tu Chi, long 100 meters, and wide 28 meters, deep 1.2m installs power
System, bottom of pond and is formed around mixed mud layer, is provided with the sand bed of half mud half above bottom of pond mixed mud layer, quick lime clean up the pond after retaining depth
50cm；
(2), rich water and microorganisms：Chicken manure, duck excrement, pig manure rich water are added in microorganism culture pond, yeast is added and is sent out
Ferment produces micropopulation, and chicken manure, duck excrement, pig manure ratio are 3: 1: 1, in an amount every mu of 2-3m3Throwing is spread, and early spring or late fall are micro-
Biological culture pond increases warmhouse booth；
(3), Nitzschia closterium minutissima is cultivated：The water of microorganisms group is put into Nitzschia closterium minutissima culture pond and cultivates Nitzschia closterium minutissima；
(4), culture of rotifera：Using trichlorphon active compound 3-4g/m3Harmful organism in rotifer breeding ponds is removed, wheel animalcule training is kept
Pond seawater salinity 13 ‰ -15 ‰ is educated, temperature 18-22 DEG C, pH value 7.8-8.5 extracts Nitzschia closterium minutissima water and directly feeds wheel with water pump
Worm, by constantly extracting wheel animalcule and the system that turns on the power water body is stirred, and allows wheel animalcule to maintain the peak period of a period of time, keeps wheel
280/ml of worm density, when wheel animalcule density is not enough, adds soya-bean milk；
(5), the cultivation of juvenile crab：Mitten Crab Larvae is rendered in river crab culture pond, it is 1 × 10 to throw in density4Individual/m3, oxygenation is installed
One, machine, the natural temperature of nursery extracts wheel animalcule between 22-25 DEG C with water pump circulation, and with feeding after 200 mesh sieve net filtrations
Mitten Crab Larvae, it is 2-3/ml that wheel animalcule feeds density, after zoea development is to megalops larva, draws in the net to fish for crab after 4-5 days
Seedling.
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| CN112544544A (en) * | 2020-12-10 | 2021-03-26 | 棠香铁山(重庆)智慧农业科技有限公司 | Anti-season crayfish breeding system and control method |
| CN115486393A (en) * | 2022-10-09 | 2022-12-20 | 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 crab seedling live baits |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| CN112544544A (en) * | 2020-12-10 | 2021-03-26 | 棠香铁山(重庆)智慧农业科技有限公司 | Anti-season crayfish breeding system and control method |
| 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 |
| CN115486393A (en) * | 2022-10-09 | 2022-12-20 | 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 crab seedling live baits |
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