CN109644911A - A kind of red claw crayfish-grass carp-hydrilla verticillata ecology synthesis breeding method - Google Patents
A kind of red claw crayfish-grass carp-hydrilla verticillata ecology synthesis breeding method Download PDFInfo
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- CN109644911A CN109644911A CN201910025908.0A CN201910025908A CN109644911A CN 109644911 A CN109644911 A CN 109644911A CN 201910025908 A CN201910025908 A CN 201910025908A CN 109644911 A CN109644911 A CN 109644911A
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- 210000000078 claw Anatomy 0.000 title claims abstract description 72
- 238000009395 breeding Methods 0.000 title claims abstract description 34
- 230000015572 biosynthetic process Effects 0.000 title claims abstract description 23
- 238000003786 synthesis reaction Methods 0.000 title claims abstract description 23
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 114
- 241000238017 Astacoidea Species 0.000 claims abstract description 65
- 241000238557 Decapoda Species 0.000 claims abstract description 42
- 241000196324 Embryophyta Species 0.000 claims abstract description 39
- 241000252230 Ctenopharyngodon idella Species 0.000 claims abstract description 31
- 241000498251 Hydrilla Species 0.000 claims abstract description 18
- 238000009360 aquaculture Methods 0.000 claims abstract description 10
- 244000144974 aquaculture Species 0.000 claims abstract description 10
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims abstract description 7
- 229910052760 oxygen Inorganic materials 0.000 claims abstract description 7
- 239000001301 oxygen Substances 0.000 claims abstract description 7
- 230000001488 breeding effect Effects 0.000 claims description 14
- 238000004140 cleaning Methods 0.000 claims description 12
- 241000251468 Actinopterygii Species 0.000 claims description 8
- ODINCKMPIJJUCX-UHFFFAOYSA-N Calcium oxide Chemical compound [Ca]=O ODINCKMPIJJUCX-UHFFFAOYSA-N 0.000 claims description 8
- 241000252233 Cyprinus carpio Species 0.000 claims description 8
- 241000238565 lobster Species 0.000 claims description 7
- 150000001875 compounds Chemical class 0.000 claims description 6
- 244000269722 Thea sinensis Species 0.000 claims description 4
- 238000005276 aerator Methods 0.000 claims description 4
- AXCZMVOFGPJBDE-UHFFFAOYSA-L calcium dihydroxide Chemical compound [OH-].[OH-].[Ca+2] AXCZMVOFGPJBDE-UHFFFAOYSA-L 0.000 claims description 4
- 235000012255 calcium oxide Nutrition 0.000 claims description 4
- 239000000292 calcium oxide Substances 0.000 claims description 4
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- 235000021401 pellet diet Nutrition 0.000 claims description 4
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- 235000007164 Oryza sativa Nutrition 0.000 description 5
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- 241000040710 Chela Species 0.000 description 3
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- 244000025254 Cannabis sativa Species 0.000 description 2
- 206010021143 Hypoxia Diseases 0.000 description 2
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- 241000238077 Astacidae Species 0.000 description 1
- 241000238016 Cherax Species 0.000 description 1
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- 241000238553 Litopenaeus vannamei Species 0.000 description 1
- 241001523589 Parastacidae Species 0.000 description 1
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Classifications
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- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01K—ANIMAL HUSBANDRY; AVICULTURE; APICULTURE; PISCICULTURE; FISHING; REARING OR BREEDING ANIMALS, NOT OTHERWISE PROVIDED FOR; NEW BREEDS OF ANIMALS
- A01K61/00—Culture of aquatic animals
- A01K61/50—Culture of aquatic animals of shellfish
- A01K61/59—Culture of aquatic animals of shellfish of crustaceans, e.g. lobsters or shrimps
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- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01G—HORTICULTURE; CULTIVATION OF VEGETABLES, FLOWERS, RICE, FRUIT, VINES, HOPS OR SEAWEED; FORESTRY; WATERING
- A01G33/00—Cultivation of seaweed or algae
-
- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01K—ANIMAL HUSBANDRY; AVICULTURE; APICULTURE; PISCICULTURE; FISHING; REARING OR BREEDING ANIMALS, NOT OTHERWISE PROVIDED FOR; NEW BREEDS OF ANIMALS
- A01K61/00—Culture of aquatic animals
- A01K61/10—Culture of aquatic animals of fish
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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
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- Environmental Sciences (AREA)
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Abstract
The invention belongs to technical field of aquaculture, disclose a kind of red claw crayfish-grass carp-hydrilla verticillata ecology synthesis breeding method；Preparation before throwing seedling mainly includes that pond selects, cleans up the pond, transplanting the work such as water plant, water inlet examination water, setting net cage；Shrimp seedling is launched and management；Grass carp is put in a suitable place to breed；Aquaculture management mainly includes scientific bait throwing in, water quality management and anti-escape anti-vulnerability etc.；The fishing of red claw crayfish and grass carp harvests.Hydrilla verticillata can provide for red claw crayfish hides place and natural plant bait, furthermore can purify water, improve dissolved oxygen, reduces water temperature, build good ecological environment.Early period is cultivated, Feeding in Grass Carp man-made feeds, residual bait excrement sinks under water, can be ingested by red claw crayfish, and net cage bottom becomes crayfish and ingests habitat, and can improve pond fertility, helps to improve crayfish survival rate and growth speed；The later period is cultivated, grass carp is realized water plant comprehensive utilization, water plant undue growth is avoided to adversely affect based on hydrilla verticillata of ingesting.
Description
Technical field
The invention belongs to aquatic livestock technical field more particularly to a kind of red claw crayfish-grass carp-hydrilla verticillata ecology synthesis
Breeding method.
Background technique
Red claw crayfish (Cherax quadricarinatus) belongs to Decapoda (Decapoda), intends Astacidae
(Parastacidae), red claw crayfish category (Cherax) originates in the tropical area streams in Australia the north, exactly likes marine dragon
Shrimp also known as Australia freshwater lobster are one of Freshwater shrimps most rare in the world.Start to propagate artificially within 1971, is most excellent
One of Freshwater shrimps.The shrimp lives in fresh water throughout one's life, omnivorousness, there is the faster speed of growth, can be naturally numerous in fresh water
Reproductive growth.Red claw crayfish body is fertile greatly, and the speed of growth is fast, and maximum can be grown to 600 grams or so, through 5-6 month individuals of artificial breeding
For specification up to 75~200 grams, edible part is up to 40-50%.Its is full of nutrition, and fine and tender taste, cunning is crisp, delicious flavour is fragrant and sweet,
Flavor is peculiar.Red claw crayfish has extremely strong resistance to vigor, is very beneficial for no water transport, fresh and alive prawn at home and abroad market by
Favor.Again because its is bright in luster, figure might has and makees Shui nationality fancy breed and be used.Red claw crayfish industrial prospect is boundless.
Currently, based on Pond culture, throwing seedling density is 3000~6000 tails/mu for red claw crayfish cultivation, cultivates the middle and later periods
Water quality, substrate are easy to deteriorate, the explosive algae spray that turns blue, and due to a lack of object is hidden, crayfish cuts one another's throat than more serious, cultivation success rate
It is lower with survival rate, it cultivates successful yield and generally only has 100~150,000 grams/acre, cultivation failure is shown in repeatly the phenomenon that No kernels or seeds are gathered, as in a year of scarcity
It is not fresh.Aqueous plant (such as hydrilla verticillata, waterweed, withered grass) is sunk in the plantation of red claw crayfish cultivating pool can mention for red claw crayfish
For hiding space and vegetal bait, and play the role of regulating water quality, cultivates success rate and survival rate increases, but in high temperature
Season water plant undue growth covers the water surface or dead corruption, be easy to cause crayfish anoxic Large Scale Death, gather in undue growth
Water plant expends a large amount of manpowers, and the water plant processing got is also problem, causes larger puzzlement to raiser.In addition, water plant is excessive
Breeding often leads to the reduction of other aquatic animals and plants, and water quality is partially thin, influences the growth of red claw crayfish, water plant covering to a certain extent
The water surface is easy to cause pond bottom anoxic, causes a large amount of crayfish dead.It was cultivated for this purpose, both having played water plant in red claw crayfish
Advantage in journey, and adverse effect caused by plant undue growth is reduced or avoided, it is to compel in current red claw crayfish breeding process
Be essential technical problems to be solved.
In conclusion problem of the existing technology is: red claw crayfish monoculture mode, cannibalisation is serious, cultivation later period water quality,
Substrate deteriorates, and cultivation success rate is low, and cultured output is low；Common plantation water plant cultivates red claw crayfish mode, and water plant is easy excessively numerous
It grows and often leads to the reduction of other aquatic animals and plants, water quality is partially thin, and the speed of growth of crayfish is slow, and the water plant covering water surface is easy to cause chela
Shrimp hypoxia death.How rationally utilize water plant advantage, provided for crayfish and hide place and plant feed, play regulating water quality,
Improve the effect of substrate, while avoiding water body caused by water plant excessive multiplication partially thin and the problem of bottom dissolved oxygen deficiency, is current
The technical problem of red claw crayfish cultivation.
Summary of the invention
In view of the problems of the existing technology, the present invention provides a kind of red claw crayfish-grass carp-hydrilla verticillata ecology synthesis
Breeding method.
The invention is realized in this way a kind of red claw crayfish-grass carp-hydrilla verticillata ecology synthesis breeding method, described red
Chela crayfish-grass carp-hydrilla verticillata ecology synthesis breeding method includes: hydrilla verticillata of the transplanting with cauline leaf；It is according to breeding density
3000~6000 tails/mu launches shrimp seedling；Red claw crayfish is launched 20~30 days, and body length reaches 5 centimetres, and body is launched in floating net cage
500 grams or more of big specification Grass carp is weighed, each net cage launches 100~150 tails.
Further, the red claw crayfish-grass carp-hydrilla verticillata ecology synthesis breeding method specifically includes:
Step 1 prepares pond, transplanting water plant, water inlet examination water, setting floating net cage before throwing seedling；
Step 2, shrimp seedling is launched and management；
Step 3, red claw crayfish are launched 20~30 days, and body length reaches 5 centimetres, and 500 grams of weight or more are launched in net cage
Big specification Grass carp, each net cage launch 100~150 tails, sterile-processed before putting in a suitable place to breed；
Step 4, aquaculture management；
Step 5, using lobster basket catch red claw crayfish, catch stay greatly it is small list in batches, lobster basket can catch 90% or more crayfish,
Remainder need to do pool fishing.
Further, the step 1 specifically includes:
(1) 3~5 mu of red claw crayfish cultivating pool area, 0.8~1.5 meter of the depth of water, bottom of pond silt depth is less than 15 centimetres, the pool
Anti-escape network is arranged in ridge surrounding, is arranged paddle aerator one；
(2) pool 15 days or more is shone before cleaning up the pond, is intake 10~20 centimetres, is used 50~75 kilograms of quick lime per acre, is watered after melting
The full pool is splashed, and is splashed the tea bran impregnated according to 15~25 kilograms of full pools of dosage per acre；
(3) the hydrilla verticillata with cauline leaf is transplanted after cleaning up the pond 5 days, and 2 meters of water plant spacing in the rows, cultivated area accounts for the full pool 70%；
(4) breeding water requires water quality pure and fresh, pollution-free, meets fishery water standard, adds the depth of water to 50 centimetres or so, into
The mouth of a river above the screen to filtrate of 80 mesh；Before putting seedling, wild shrimp or red claw crayfish seedling are put into cylinder mould and kept hanging in pond, detects pool water
Prawn has nontoxicity；
(5) floating net is set, sets 5 per acre, net cage mesh is 5 centimetres, and length, width and height are respectively 6 meters, 4 meters, 1.5 meters,
0.5 meter of net cage water surface elevation, underwater 1 meter of height.
Further, the step 2 shrimp seedling cultivation: seed cultivation stages impose the organic fertilizer to ferment, water quality of increasing fertilizer；Often
It feeds artifical compound feed 3~4 times, and day feeding volume is the 5%~10% of shrimp seedling weight；Holding water quality is pure and fresh, dissolved oxygen is sufficient,
Water temperature is maintained at 22~30 DEG C.
Further, the step 4 specifically includes:
(1) red claw crayfish feeds artifical compound feed (protein content 32%~40%) at the shrimp aquaculture stage, feeds daily
It 2 times, feeds 30% morning, feeds 70% at dusk, day feeding volume is the 1~3% of shrimp weight；Early period is cultivated, grass carp is to feed people
Work cooperates based on expanded pellet diet, feeds daily 2 times, and day feeding volume is that fish body weighs 2~3%；The later period is cultivated, grass carp is with wheel blade of ingesting
It based on black algae, feeds supplemented by man-made feeds, by dragging net cage, grass carp ingests water plant through net cage hole；
(2) splashed every 15 days lime water 1 time during cultivating, dosage is 3~5ppm.
Implement the red claw crayfish-grass carp-hydrilla verticillata ecology synthesis kind another object of the present invention is to provide a kind of
The aquatic livestock ecological cultivation system for the method for supporting.
Culture experiment is as the result is shown: 311.39 kilograms of the average yield per mu of plant breeding model red claw crayfish of the present invention, cultivation survival rate
88.5%；906.28 kilograms of grass carp average yield per mu, cultivation survival rate 96.4%；It is compared with traditional red claw crayfish monoculture mode, it is red
The chela crayfish speed of growth improves 10.78%, and the individual uniformity is higher (coefficient of variation only 0.165), and cultivation survival rate improves
54.45%, average product improves 71.11%, and feed coefficient reduces 27.56%, increases grass carp yield 505.03 thousand newly per acre
Gram, and cultivate whole process and be not required to change water, realize zero-emission.The present invention comprehensively utilizes red claw crayfish-grass carp-hydrilla verticillata ecology and builds
One good pond ecosystem, red claw crayfish yield and survival rate greatly improve, and realize fishes and shrimps bumper harvests, and cultivation is complete
Cheng Wuxu changes water, is a kind of breeding binding pattern of ecological efficient.
Detailed description of the invention
Fig. 1 is red claw crayfish-grass carp provided in an embodiment of the present invention-hydrilla verticillata ecology synthesis breeding method flow diagram.
Specific embodiment
In order to make the objectives, technical solutions, and advantages of the present invention clearer, with reference to embodiments, to the present invention
It is further elaborated.It should be appreciated that the specific embodiments described herein are merely illustrative of the present invention, it is not used to
Limit the present invention.
Prior art water plant excessive multiplication often leads to the reduction of other aquatic animals and plants, and water quality is partially thin, to a certain extent shadow
Ring the growth of red claw crayfish.The present invention proposes a kind of red claw crayfish-grass carp-hydrilla verticillata ecology synthesis breeding method, in pond
It puts red claw crayfish in a suitable place to breed and plants hydrilla verticillata wheel, setting floating net cultivates grass carp.Hydrilla verticillata provides for red claw crayfish hides
Place and vegetal bait are kept away, and plays the role of regulating water quality, substrate, the hydrilla verticillata of undue growth provides naturally for grass carp
Feed controls hydrilla verticillata density by grass carp, adjusts pond water quality and substrate, reaches pond ecological balance, realizes that fishes and shrimps are double
Good harvest, economic benefit and ecological benefits significantly improve.
Application principle of the invention is explained in detail with reference to the accompanying drawing.
As shown in Figure 1, red claw crayfish-grass carp provided in an embodiment of the present invention-hydrilla verticillata ecology synthesis breeding method packet
Include following steps:
S101: prepare pond, transplanting water plant, water inlet examination water, setting net cage before throwing seedling；
S102: shrimp seedling is launched and management；
S103: red claw crayfish is launched 20~30 days, and body length reaches 5 centimetres or so, and 500 grams of weight or more are launched in net cage
Big specification Grass carp, each net cage launches 100~150 tails, sterile-processed before putting in a suitable place to breed；
S104: aquaculture management；
S105: using lobster basket catch red claw crayfish, can catch stay greatly it is small list in batches, lobster basket can catch 90% or more crayfish,
Remainder need to do pool fishing.
In a preferred embodiment of the invention, step S101 is specifically included:
(1) pond condition: 3~5 mu of red claw crayfish cultivating pool area is advisable, and 0.8~1.5 meter of the depth of water, bottom of pond silt depth
Less than 15 centimetres, anti-escape network is arranged in pool ridge surrounding, is arranged paddle aerator one.
(2) clean up the pond: shining pool 15 days or more before cleaning up the pond, intake 10~20 centimetres, use 50~75 kilograms of quick lime per acre, be watered
The full pool is splashed after melting, and splashes the tea bran impregnated according to 15~25 kilograms of full pools of dosage per acre, effect of cleaning up the pond is checked after cleaning up the pond 2 days
Fruit.
(3) transplant water plant: transplanting the hydrilla verticillata with cauline leaf after cleaning up the pond 5 days, 2 meters of water plant spacing in the rows, cultivated area accounts for Quan Tang
70% or so.
(4) water inlet tries water: breeding water requires water quality pure and fresh, pollution-free, meets fishery water standard, adds the depth of water to 50 lis
Rice or so, the water inlet above the screen to filtrate of 80 mesh prevents enemy from entering；Before putting seedling, red claw crayfish seedling is put into cylinder mould hanging culture
Yu Chizhong, detection pool water prawn have nontoxicity.
(5) net cage is arranged: setting floating net sets 5 per acre, and net cage mesh is 5 centimetres, and length, width and height are respectively 6 meters, 4
Rice, 1.5 meters, about 0.5 meter of net cage water surface elevation, underwater about 1 meter of height.
In a preferred embodiment of the invention, step S102 is specifically included:
Shrimp seedling launch: red claw crayfish seed launch specification be 2~3 centimetres or more, it is desirable that neat specification, it is physically fit,
It is disease-free and injury-free；Breeding density is 3000~6000 tails/mu；The morning or dusk of fine day should be selected by putting the time in a suitable place to breed, should be allowed before throwing seedling
Shrimp seedling slowly adapts to pond water temperature and condition of water quality.
(2) shrimp seedling aquaculture management: seed cultivation stages impose the organic fertilizer to ferment in due course, water quality of increasing fertilizer；People is fed daily
Work mixed feed 3~4 times, day feeding volume is the 5%~10% of shrimp seedling weight；Holding water quality is pure and fresh, dissolved oxygen is sufficient, and water temperature is kept
At 22~30 DEG C.
In a preferred embodiment of the invention, step S104 is specifically included:
(1) scientific bait throwing in: red claw crayfish is fed based on artifical compound feed, is fed daily 2 times, feeds 30% morning, at dusk
70% is fed, day feeding volume is the 1~3% of shrimp weight.Early period is cultivated, grass carp is to feed based on hand fit's expanded pellet diet, often
It feeds 2 times, and day feeding volume is that fish body weighs 2~3%, and grass carp excrement can provide bait for crayfish and play the role of the fertile pool；Cultivation
Later period, grass carp are fed supplemented by man-made feeds based on hydrilla verticillata of ingesting, and by dragging net cage, grass carp ingests through net cage hole
Water plant realizes water plant comprehensive utilization, water plant undue growth is avoided to adversely affect.
(2) water quality management: hydrilla verticillata has extremely strong detergent power, and daytime, photosynthesis can generate a large amount of oxygen, and energy
Play the role of shading, cultivation is whole without changing water.For increase pond calcium ion concentration, meet crayfish degenerate cllipticity demand, it can be every
It splashed every 15 days or so lime water 1 time, dosage is 3~5ppm.
(3) anti-escape anti-vulnerability: patrolling the pool daily, checks escaping-preventing facilities, the harmful organisms invasion such as prevention snake coly.
Application principle of the invention is further described combined with specific embodiments below.
Red claw crayfish-grass carp provided in an embodiment of the present invention-hydrilla verticillata ecology synthesis breeding method the following steps are included:
1. throwing the preparation before seedling
(1) pond condition: 3 mu of red claw crayfish cultivating pool area is advisable, and 1.5 meters of the depth of water, about 10 lis of bottom of pond silt depth
Rice, the vertical hardening of cement pool ridge, can effectively anti-escape anti-vulnerability, 1.5 kilowatts of paddle aerators one are set.
(2) clean up the pond: shining the pool before cleaning up the pond 25 days, intake about 20 centimetres, use 75 kilograms of quick lime per acre, be watered and melt the rear full pool
It splashes, the full pool is splashed after being bubbled open per acre with 15 kilograms of tea brans, and effect of cleaning up the pond is checked after cleaning up the pond 2 days, and fish shrimp crab spiral shell thoroughly removes.
(3) transplant water plant: transplanting the hydrilla verticillata with cauline leaf after cleaning up the pond 5 days, 2 meters of water plant spacing in the rows, cultivated area accounts for Quan Tang
70% or so.
(4) water inlet tries water: breeding water requires water quality pure and fresh, pollution-free, meets fishery water standard, adds the depth of water to 50 lis
Rice or so, the water inlet above the screen to filtrate of 80 mesh prevents enemy from entering；Before putting seedling, red claw crayfish seedling is put into cylinder mould hanging culture
Yu Chizhong determines pool water to crayfish nontoxicity.
(5) net cage is arranged: setting floating net sets 5 per acre, and net cage mesh is 5 centimetres, and length, width and height are respectively 6 meters, 4
Rice, 1.5 meters, about 0.5 meter of net cage water surface elevation, underwater about 1 meter of height.
2. shrimp seedling is launched and management
(1) shrimp seedling is launched: launching 1.5 ten thousand tail of a length of 2~3 centimetres of red claw crayfish seeds of body；Breeding density is 5000 tails/mu；
It puts the dusk that the time is fine day in a suitable place to breed, throws Miao Qianrang shrimp seedling and slowly adapt to pond water temperature and condition of water quality.
(2) shrimp seedling aquaculture management: seed cultivation stages feed hand fit's Penaeus Vannmei opening material 3~4 times daily, day
Feeding volume is the 5%~10% of shrimp seedling weight；Holding water quality is pure and fresh, dissolved oxygen is sufficient.
3. grass carp is put in a suitable place to breed
After red claw crayfish is thrown seedling 30 days, body length reaches 5 centimetres or so, and 535 grams of counterpoise of big specification grass is launched in net cage
Fingerling, each net cage launch 130 tails, sterile-processed before putting in a suitable place to breed.
4. aquaculture management
(1) scientific bait throwing in: red claw crayfish feeds litopenaeus vannamei compound feed, feeds daily 2 times, feed 30% in the morning, is close to
Evening feeds 70%, and day feeding volume is the 1~3% of shrimp weight.Early period is cultivated, grass carp feeds 2 to feed grass carp expanded pellet diet daily
Secondary, day feeding volume is that fish body weighs 2~3%；The later period is cultivated, grass carp is fed supplemented by man-made feeds based on hydrilla verticillata of ingesting, and is led to
Cross dragging net cage, grass carp ingests water plant through net cage hole, realizes water plant comprehensive utilization, water plant undue growth is avoided to cause unfavorable shadow
It rings.
(2) water quality management: hydrilla verticillata has extremely strong detergent power, and daytime, photosynthesis can generate a large amount of oxygen, and energy
Play the role of shading, cultivation is whole without changing water.For increase pond calcium ion concentration, meet crayfish degenerate cllipticity demand, it can be every
It splashed every 15 days or so lime water 1 time, dosage 5ppm.
(3) anti-escape anti-vulnerability: patrolling the pool daily, checks escaping-preventing facilities, the harmful organisms invasion such as prevention snake coly.
5. harvest: being cultivated through 128 days, harvest 934.18 kilograms of red claw crayfish, 311.39 kilograms of average yield per mu, cultivation survives
Rate 88.5%；2718.84 kilograms of grass carp of harvest, 906.28 kilograms of average yield per mu, cultivation survival rate 96.4%.The present invention and tradition
The comparison of red claw crayfish monoculture mode, the red claw crayfish speed of growth improve 10.78%, and the individual uniformity is higher, and (coefficient of variation is only
0.165), cultivation survival rate improves 54.45%, and average product improves 71.11%, and feed coefficient reduces 27.56%；This
Increase 505.03 kilograms of grass carp yield newly per acre outside；And cultivation whole process is not required to change water, realizes zero-emission.Red claw crayfish-grass carp-wheel blade
Black algae ecology synthesis plant breeding model realizes fishes and shrimps bumper harvests, is a kind of plant breeding model of ecological efficient, economic benefit and ecology
Remarkable benefit is worth large-scale demonstration to promote cultivation.
1 red claw crayfish of table-grass carp-hydrilla verticillata ecology synthesis breeding situation table
The zoology breeding mode of the present invention of table 2 and traditional monoculture mode cultivation situation comparison
The foregoing is merely illustrative of the preferred embodiments of the present invention, is not intended to limit the invention, all in essence of the invention
Made any modifications, equivalent replacements, and improvements etc., should all be included in the protection scope of the present invention within mind and principle.
Claims (6)
1. a kind of red claw crayfish-grass carp-hydrilla verticillata ecology synthesis breeding method, which is characterized in that the red claw crayfish-grass
Fish-hydrilla verticillata ecology synthesis breeding method includes: hydrilla verticillata of the transplanting with cauline leaf；It is 3000~6000 according to breeding density
Tail/mu launches shrimp seedling；Red claw crayfish is launched 20~30 days, and body length reaches 5 centimetres, and 500 grams of weight or more are launched in net cage
Big specification Grass carp, each net cage launch 100~150 tails.
2. red claw crayfish-grass carp as described in claim 1-hydrilla verticillata ecology synthesis breeding method, which is characterized in that described
Red claw crayfish-grass carp-hydrilla verticillata ecology synthesis breeding method specifically includes:
Step 1 prepares pond, transplanting water plant, water inlet examination water, setting net cage before throwing seedling；
Step 2, shrimp seedling is launched and management；
Step 3, red claw crayfish are launched 20~30 days, and body length reaches 5 centimetres, and 500 grams of weight or more of big rule are launched in net cage
Lattice Grass carp, each net cage launch 100~150 tails, sterile-processed before putting in a suitable place to breed；
Step 4, aquaculture management；
Step 5 catches red claw crayfish using lobster basket, catch stay greatly it is small list in batches, lobster basket can catch 90% or more crayfish, remaining
Part need to do pool fishing.
3. red claw crayfish-grass carp as claimed in claim 2-hydrilla verticillata ecology synthesis breeding method, which is characterized in that described
Step 1 specifically includes:
(1) 3~5 mu of red claw crayfish cultivating pool area, 0.8~1.5 meter of the depth of water, bottom of pond silt depth is less than 15 centimetres, the pool ridge four
Week setting anti-escape network, is arranged paddle aerator one；
(2) pool 15 days or more is shone before cleaning up the pond, is intake 10~20 centimetres, is used 50~75 kilograms of quick lime per acre, is watered and melts the rear full pool
It splashes, splashes the tea bran impregnated according to 15~25 kilograms of full pools of dosage per acre；
(3) the hydrilla verticillata with cauline leaf is transplanted after cleaning up the pond 5 days, and 2 meters of water plant spacing in the rows, cultivated area accounts for the full pool 70%；
(4) breeding water requires water quality pure and fresh, pollution-free, meets fishery water standard, adds the depth of water to 50 centimetres or so, water inlet
With the above the screen to filtrate of 80 mesh；Before putting seedling, wild shrimp or red claw crayfish seedling are put into cylinder mould and kept hanging in pond, detects pool water prawn
There is nontoxicity；
(5) floating net is set, sets 5 per acre, net cage mesh is 5 centimetres, and length, width and height are respectively 6 meters, 4 meters, 1.5 meters, net cage
0.5 meter of water surface elevation, underwater 1 meter of height.
4. red claw crayfish-grass carp as claimed in claim 2-hydrilla verticillata ecology synthesis breeding method, which is characterized in that described
The cultivation of step 2 shrimp seedling: seed cultivation stages impose the organic fertilizer to ferment, water quality of increasing fertilizer；Artifical compound feed 3 is fed daily
~4 times, day feeding volume is the 5%~10% of shrimp seedling weight；Holding water quality is pure and fresh, dissolved oxygen is sufficient, and water temperature is maintained at 22~30 DEG C.
5. red claw crayfish-grass carp as claimed in claim 2-hydrilla verticillata ecology synthesis breeding method, which is characterized in that described
Step 4 specifically includes:
(1) red claw crayfish feeds artifical compound feed at the shrimp aquaculture stage, feeds 2 times daily, feeds 30% morning, feed at dusk
70%, day feeding volume is the 1~3% of shrimp weight；Early period is cultivated, grass carp is thrown daily to feed based on hand fit's expanded pellet diet
It feeds 2 times, day feeding volume is that fish body weighs 2~3%；The later period is cultivated, based on hydrilla verticillata of ingesting, feed man-made feeds is grass carp
Auxiliary, by dragging net cage, grass carp ingests water plant through net cage hole；
(2) splashed every 15 days lime water 1 time, dosage is 3~5ppm.
6. a kind of red claw crayfish-grass carp described in 5 any one of implementation Claims 1 to 5-hydrilla verticillata ecology synthesis breeding method
Aquatic livestock ecological cultivation system.
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