CN105028265A - Prawn ecological polyculture method - Google Patents
Prawn ecological polyculture method Download PDFInfo
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- CN105028265A CN105028265A CN201510348641.0A CN201510348641A CN105028265A CN 105028265 A CN105028265 A CN 105028265A CN 201510348641 A CN201510348641 A CN 201510348641A CN 105028265 A CN105028265 A CN 105028265A
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- 241000238557 Decapoda Species 0.000 title claims abstract description 299
- 238000000034 method Methods 0.000 title claims abstract description 23
- 238000009344 polyculture Methods 0.000 title abstract 2
- 238000012258 culturing Methods 0.000 claims abstract description 98
- 230000000366 juvenile effect Effects 0.000 claims abstract description 46
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 89
- 238000009360 aquaculture Methods 0.000 claims description 43
- 244000144974 aquaculture Species 0.000 claims description 43
- 238000009395 breeding Methods 0.000 claims description 27
- 230000001488 breeding effect Effects 0.000 claims description 27
- 230000000630 rising effect Effects 0.000 claims description 9
- 238000004659 sterilization and disinfection Methods 0.000 claims description 9
- 241000196324 Embryophyta Species 0.000 claims description 6
- 239000013535 sea water Substances 0.000 claims description 5
- 241000252230 Ctenopharyngodon idella Species 0.000 claims description 3
- 241000252233 Cyprinus carpio Species 0.000 claims description 3
- 238000004519 manufacturing process Methods 0.000 abstract description 2
- 244000058871 Echinochloa crus-galli Species 0.000 abstract 2
- 235000015225 Panicum colonum Nutrition 0.000 abstract 2
- 210000003734 kidney Anatomy 0.000 description 4
- 230000001276 controlling effect Effects 0.000 description 3
- 201000010099 disease Diseases 0.000 description 3
- 208000037265 diseases, disorders, signs and symptoms Diseases 0.000 description 3
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- 230000009286 beneficial effect Effects 0.000 description 2
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- 241000251468 Actinopterygii Species 0.000 description 1
- 208000006820 Arthralgia Diseases 0.000 description 1
- 206010020880 Hypertrophy Diseases 0.000 description 1
- 206010062717 Increased upper airway secretion Diseases 0.000 description 1
- 241000530454 Litopenaeus schmitti Species 0.000 description 1
- 208000000112 Myalgia Diseases 0.000 description 1
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- 208000003251 Pruritus Diseases 0.000 description 1
- 206010040943 Skin Ulcer Diseases 0.000 description 1
- 208000003217 Tetany Diseases 0.000 description 1
- 230000001147 anti-toxic effect Effects 0.000 description 1
- 230000036528 appetite Effects 0.000 description 1
- 235000019789 appetite Nutrition 0.000 description 1
- 206010003549 asthenia Diseases 0.000 description 1
- 210000000481 breast Anatomy 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
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- 238000010411 cooking Methods 0.000 description 1
- 239000003814 drug Substances 0.000 description 1
- 229940079593 drug Drugs 0.000 description 1
- 239000000796 flavoring agent Substances 0.000 description 1
- 235000019634 flavors Nutrition 0.000 description 1
- 230000036541 health Effects 0.000 description 1
- 201000001881 impotence Diseases 0.000 description 1
- 238000011534 incubation Methods 0.000 description 1
- 235000013372 meat Nutrition 0.000 description 1
- 238000009343 monoculture Methods 0.000 description 1
- 230000000050 nutritive effect Effects 0.000 description 1
- 208000026435 phlegm Diseases 0.000 description 1
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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
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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
- A01K63/00—Receptacles for live fish, e.g. aquaria; Terraria
- A01K63/003—Aquaria; Terraria
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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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Abstract
The invention discloses a prawn ecological polyculture method, which is used for culturing prawn in three prawn pools connected in a triangle shape according to the age of the prawn and polyculturing the prawn and juvenile crabs in the prawn pools in different batches. By utilizing the method, a young prawn pool can be set together with a bred medium prawn pool and an adult prawn pool, so that the young prawn does not need to be transferred, the culture density of the medium prawn and adult prawn does not need to be calculated, the young prawns growing to a given body length in the young prawn pool are gradually put in the next culture pool one by one, thus the prawn can be cultured by one production streamline; moreover, river crabs can be poly-cultured, fries can be independently cultured, so that not only is the yield of aquatic product increased and are the culture types of the aquatic product increased, but also the growth of water grasses can be effectively controlled, times for removing the water grasses in the pool can be reduced, and the manpower resource can be saved.
Description
Technical field
The present invention relates to aquaculture, particularly a kind of prawn ecological polyculturing method.
Background technology
Prawn, formal name used at school " prawn ", also claims " Chinese prawn ".Have another name called " prawn ", " angle shrimp ", " white shrimp ", " phoenix shrimp ".One of important seafood product in Hainan.Its meat is plump, and delicious flavour, is rich in protein.The traditional Chinese medical science is thought, the sweet alkalescence temperature of its taste, can tonifying kidney and strengthening yang, enriching yin stomach invigorating.Be suitable for multiple cooking legal system dish.
Prawn wet, sweet-salty warm in nature, enters kidney, the spleen channel; Shrimp has tonifying kidney and strengthening yang, and logical breast is antitoxin, the controlling nocturnal emission with astringent drugs that nourishes blood, dissolving blood stasis and detoxication, beneficial gas grow sun, remove obstruction in channels to relieve pain, effect such as to reduce phlegm of whetting the appetite; Be suitable for impotence due to deficiency of the kidney, seminal emission premature ejaculation, alactation, arthralgia and myalgia, tetany, whole body scratched where it itches, the patients such as skin ulcer, in poor health and neurasthenia.
Exactly because the protein content of prawn is high, nutritive value is large, have effect of multiple disease-resistant health care, need market demand very large, traditional prawn cultural method directly puts shrimp seedling in a suitable place to breed to enter the cultivation of the large pool when water temperature reaches more than 20 DEG C, this breeding way survival rate is low, become shrimp specification little, become shrimp individual difference larger, poor quality, yield poorly, deficiency in economic performance.
Summary of the invention
The object of the present invention is to provide a kind of prawn ecological polyculturing method, shrimp seedling, fry and juvenile crab are carried out mixed breed by the method, achieve and make full use of water resource and carry out aquaculture, and by the cultivation density of the various aquatic products of conservative control, reach rationally taking food pasture and water and feed, reduce artificial interference to water body environment, the competitive environment keeping good water body environment and ingest, to realizing multiple aquatic products at short notice.
To achieve these goals with some other objects:
A kind of prawn ecological polyculturing method, comprises the following steps:
Step one, the shrimp pond that three triangle dispositions connect is set, wherein, in triangle disposition shrimp pond, the shrimp pond of upper end is shrimp seedling culturing pool, in triangle disposition shrimp pond, two shrimp ponds of lower end are respectively Prawn culturing pool and become shrimp aquaculture pond, wherein, at the bottom of the pond of shrimp seedling culturing pool, successively there is difference in height at the bottom of the pond of Prawn culturing pool and at the bottom of the pond in one-tenth shrimp aquaculture pond, wherein difference in height is respectively 30-40cm, 50-70cm and 80-100cm, the highest at the bottom of wherein said shrimp seedling culturing pool pond, shrimp seedling culturing pool, Prawn culturing pool is 1:10:15 with becoming the cultured area ratio in shrimp aquaculture pond, and shrimp seedling culturing pool, the bottom of Prawn culturing pool all rolls tiltedly to one-tenth shrimp aquaculture pond, angle of inclination is greater than 10 degree, afterwards, put in a suitable place to breed by three shrimp pond disinfections and by shrimp seedling in shrimp seedling culturing pool, controlling water level is 30-35cm,
While step 2, culture shrimp seedling, be 20-30cm at Prawn culturing pool retaining to height of water level, in Prawn culturing pool, plant pasture and water afterwards, when pasture and water cover pond floor space more than 50%, increase height of water level to 40-50cm and put into juvenile crab;
Step 3, while culture shrimp seedling, in one-tenth shrimp aquaculture pond, plant pasture and water, when pasture and water cover pond floor space more than 60%, increase height of water level to 60-70cm and put into fry;
Step 4, until the body of shrimp seedling is long rise to 5-6cm after, first the fry become in shrimp aquaculture pond is fished for, and is transferred in seawater cage and cultivates; Afterwards the juvenile crab in Prawn culturing pool is come down in torrents to becoming in shrimp aquaculture pond to cultivate with breeding water body through the gate be arranged between Prawn culturing pool and one-tenth shrimp aquaculture pond, and control cultivation height of water level is 25-30cm;
Step 5, by long for the body in the shrimp seedling culturing pool Prawn rising to 5-6cm through Prawn culturing pool with become the gate between shrimp aquaculture pond to come down in torrents in Prawn culturing pool with breeding water body, and again put second batch juvenile crab in a suitable place to breed in Prawn culturing pool, the ratio of the cultivation density of second batch juvenile crab and the cultivation density of Prawn is 1:8-14;
Step 6, shrimp seedling culturing pool to be exposed to the sun more than 15 days, to carry out thorough disinfection afterwards, and cultivate into second batch shrimp seedling;
The body of step 7, Prawn in Prawn culturing pool is long when rising to 11-13cm, is fished for by the juvenile crab become in shrimp aquaculture pond, and is transferred in other crab culture pond and continues cultivation; Afterwards, the Prawn in the upper strata water body in Prawn culturing pool is slowly come down in torrents to becoming in shrimp aquaculture pond to cultivate with water body, and keep breeding water body resident water height in Prawn culturing pool to be the cultivation of 20-25cm for juvenile crab;
Step 8, the shrimp seedling in shrimp seedling culturing pool is had in the Prawn culturing pool of juvenile crab cultivate with water body cultivation of slowly coming down in torrents, and keep the height of breeding water body to be 70-90cm;
Step 9, shrimp seedling culturing pool to be exposed to the sun more than 15 days, to carry out thorough disinfection afterwards, and cultivate into next group shrimp seedling;
The body of step 10, Prawn in Prawn culturing pool is long when rising to 11-13cm, and the Prawn in Prawn culturing pool and juvenile crab slowly come down in torrents with breeding water body cultivates to one-tenth shrimp aquaculture pond; Afterwards, the shrimp seedling in shrimp seedling culturing pool is slowly come down in torrents in Prawn culturing pool with water body and cultivates, and keep the height of breeding water body to be 70-90cm;
Step 11, slowly to be come down in torrents by the shrimp seedling in shrimp seedling culturing pool carry out cultivating and putting into juvenile crab to Prawn culturing pool with breeding water body, wherein, the ratio of the cultivation density of juvenile crab and the cultivation density of Prawn is 1:8-14;
Step 12, wait become the body of shrimp long more than 18cm time, one-tenth shrimp and juvenile crab are fished for;
Step 13, repetition step 6-step 12.
Preferably, wherein, in step 4, step 7, step 8 and step 10, the flow velocity that breeding water body slowly comes down in torrents is 0.2-0.5m/s.
Preferably, wherein, described gate comprises the upper lock gate and tail gates that arrange from top to bottom, and the height ratio of described upper lock gate and tail gates is 2-5:1, and described upper lock gate and tail gates are rotary setting, and described upper lock gate and tail gates open and close separate.
Preferably, wherein, the cultivation density of described shrimp seedling be 3500-4000 tail/square metre, the cultivation density of Prawn be 800-1200 tail/square metre, become the cultivation density of shrimp be 300-500 tail/square metre.
Preferably, wherein, the temperature of cultivation of described shrimp seedling is 22-32 DEG C, and the temperature of cultivation of Prawn is 21-29 DEG C, and the cultivation temperature becoming shrimp is 16-28 DEG C.
Preferably, wherein, described juvenile crab is river crab, and described fry is grass carp, carp or crucian.
Preferably, wherein, described pasture and water are planted in many right-angled intersections at the bottom of Prawn culturing pool with the pond becoming shrimp aquaculture pond, and have been provided with certain intervals between two pasture and water bands, and the growth area of restriction pasture and water is no more than 60% of pond floor space.
The invention has the beneficial effects as follows:
Shrimp seedling, fry and juvenile crab are carried out mixed breed by the inventive method, achieve and make full use of water resource and carry out aquaculture, and by the cultivation density of the various aquatic products of conservative control, reach rationally taking food pasture and water and feed, reduce the artificial interference to water body environment, the competitive environment that keeps good water body environment and ingest, to realizing multiple aquatic products at short notice;
Application the inventive method carries out cyclic culture, first initial culture-cycle can cultivate a collection of fry and continue cultivation again to being transferred in seawater cage after certain body is long, and can cultivate two batches of juvenile crabs and three batches of shrimps, a collection of juvenile crab of cultivation and two batches of shrimps are supported in each circulation afterwards simultaneously; The overall productivity of aquatic products is significantly improved in same time;
Apply method of the present invention can by the Prawn pond of shrimp seedling pond and incubation with become shrimp pond and be set together, shrimp seedling need not be shifted, also Prawn and the cultivation density becoming shrimp need not be calculated, only the shrimp seedling growing to certain body in shrimp seedling pond long need be put into next culturing pool one by one, so just can in a production line type cultivation prawn, and river crab and monoculture fry can also be raised together with, not only improve output of aquatic products, increase aquaculture kind, and effectively can control the growth of pasture and water, reduce the number of times of cleaning up the pond to pasture and water, save human resources.
Embodiment
Below in conjunction with embodiment, the present invention is described in further detail, can implement according to this with reference to specification word to make those skilled in the art.
In an arrangement, a kind of prawn ecological polyculturing method, comprises the following steps:
Step one, the shrimp pond that three triangle dispositions connect is set, wherein, in triangle disposition shrimp pond, the shrimp pond of upper end is shrimp seedling culturing pool, in triangle disposition shrimp pond, two shrimp ponds of lower end are respectively Prawn culturing pool and become shrimp aquaculture pond, wherein, at the bottom of the pond of shrimp seedling culturing pool, successively there is difference in height at the bottom of the pond of Prawn culturing pool and at the bottom of the pond in one-tenth shrimp aquaculture pond, wherein difference in height is respectively 30-40cm, 50-70cm and 80-100cm, the highest at the bottom of wherein said shrimp seedling culturing pool pond, shrimp seedling culturing pool, Prawn culturing pool is 1:10:15 with becoming the cultured area ratio in shrimp aquaculture pond, and shrimp seedling culturing pool, the bottom of Prawn culturing pool all rolls tiltedly to one-tenth shrimp aquaculture pond, angle of inclination is greater than 10 degree, afterwards, put in a suitable place to breed by three shrimp pond disinfections and by shrimp seedling in shrimp seedling culturing pool, controlling water level is 30-35cm,
While step 2, culture shrimp seedling, be 20-30cm at Prawn culturing pool retaining to height of water level, in Prawn culturing pool, plant pasture and water afterwards, when pasture and water cover pond floor space more than 50%, increase height of water level to 40-50cm and put into juvenile crab;
Step 3, while culture shrimp seedling, in one-tenth shrimp aquaculture pond, plant pasture and water, when pasture and water cover pond floor space more than 60%, increase height of water level to 60-70cm and put into fry;
Step 4, until the body of shrimp seedling is long rise to 5-6cm after, first the fry become in shrimp aquaculture pond is fished for, and is transferred in seawater cage and cultivates; Afterwards the juvenile crab in Prawn culturing pool is come down in torrents to becoming in shrimp aquaculture pond to cultivate with breeding water body through the gate be arranged between Prawn culturing pool and one-tenth shrimp aquaculture pond, and control cultivation height of water level is 25-30cm;
Step 5, by long for the body in the shrimp seedling culturing pool Prawn rising to 5-6cm through Prawn culturing pool with become the gate between shrimp aquaculture pond to come down in torrents in Prawn culturing pool with breeding water body, and again put second batch juvenile crab in a suitable place to breed in Prawn culturing pool, the ratio of the cultivation density of second batch juvenile crab and the cultivation density of Prawn is 1:8-14;
Step 6, shrimp seedling culturing pool to be exposed to the sun more than 15 days, to carry out thorough disinfection afterwards, and cultivate into second batch shrimp seedling;
The body of step 7, Prawn in Prawn culturing pool is long when rising to 11-13cm, is fished for by the juvenile crab become in shrimp aquaculture pond, and is transferred in other crab culture pond and continues cultivation; Afterwards, the Prawn in the upper strata water body in Prawn culturing pool is slowly come down in torrents to becoming in shrimp aquaculture pond to cultivate with water body, and keep breeding water body resident water height in Prawn culturing pool to be the cultivation of 20-25cm for juvenile crab;
Step 8, the shrimp seedling in shrimp seedling culturing pool is had in the Prawn culturing pool of juvenile crab cultivate with water body cultivation of slowly coming down in torrents, and keep the height of breeding water body to be 70-90cm;
Step 9, shrimp seedling culturing pool to be exposed to the sun more than 15 days, to carry out thorough disinfection afterwards, and cultivate into next group shrimp seedling;
The body of step 10, Prawn in Prawn culturing pool is long when rising to 11-13cm, and the Prawn in Prawn culturing pool and juvenile crab slowly come down in torrents with breeding water body cultivates to one-tenth shrimp aquaculture pond; Afterwards, the shrimp seedling in shrimp seedling culturing pool is slowly come down in torrents in Prawn culturing pool with water body and cultivates, and keep the height of breeding water body to be 70-90cm;
Step 11, slowly to be come down in torrents by the shrimp seedling in shrimp seedling culturing pool carry out cultivating and putting into juvenile crab to Prawn culturing pool with breeding water body, wherein, the ratio of the cultivation density of juvenile crab and the cultivation density of Prawn is 1:8-14;
Step 12, wait become the body of shrimp long more than 18cm time, one-tenth shrimp and juvenile crab are fished for;
Step 13, repetition step 6-step 12.
In this programme, also comprise prawn seedling, Prawn and become the regular sampling observation of shrimp, and carry out prevention and the treatment of prawn disease, and the injected volume of bait is suitably regulated, avoid waste.
In an arrangement, in step 4, step 7, step 8 and step 10, the flow velocity that breeding water body slowly comes down in torrents is 0.2-0.5m/s.In this programme, control the flow velocity of breeding water body, ensure prawn seedling, Prawn, one-tenth shrimp and juvenile crab to damage in the process of transfer.
In an arrangement, described gate comprises the upper lock gate and tail gates that arrange from top to bottom, and the height ratio of described upper lock gate and tail gates is 2-5:1, and described upper lock gate and tail gates are rotary setting, and described upper lock gate and tail gates open and close separate.In this programme, the keying independently of upper lock gate and tail gates, needing to play vital effect in the process that Prawn and juvenile crab are fished for respectively and cultivated in batches, reduce the artificial difficulty of fishing for Prawn and juvenile crab, only it need be fished for breeding water body in batches.
In an arrangement, the cultivation density of described shrimp seedling be 3500-4000 tail/square metre, the cultivation density of Prawn be 800-1200 tail/square metre, become the cultivation density of shrimp be 300-500 tail/square metre.In this programme, provide shrimp seedling, Prawn and become the relatively suitable cultivation density of shrimp, reach the requirement improving output while reducing disease.
In an arrangement, the temperature of cultivation of described shrimp seedling is 22-32 DEG C, and the temperature of cultivation of Prawn is 21-29 DEG C, and the cultivation temperature becoming shrimp is 16-28 DEG C.
In an arrangement, described juvenile crab is river crab, and described fry is grass carp, carp or crucian.
In an arrangement, described pasture and water open plantation with becoming at the bottom of the pond in shrimp aquaculture pond in many parallel interval at Prawn culturing pool, and the growth area limiting pasture and water is no more than 60% of pond floor space.The growth of strict control pasture and water, is meeting shrimp and crab takes food and under the needs hidden, control the hypertrophy of pasture and water, minimizing is cleaned up the pond, and reduces manual working intensity.
Application the inventive method carries out cyclic culture, first initial culture-cycle can cultivate a collection of fry and continue cultivation again to being transferred in seawater cage after certain body is long, and two batches of juvenile crabs and three batches of shrimps can be cultivated simultaneously, it is per mu yield 820-840kg that output is respectively two batches of river crab seedlings per mu yield 83-87kg, fish per mu yield 42-53kg and prawn three batches of gross yields after fattening, and can complete first culture-cycle in 5 months; The a collection of juvenile crab of cultivation of each circulation afterwards and two batches of shrimps, output and first culture-cycle are on close level; The overall productivity of aquatic products is significantly improved in same time.
Although embodiment of the present invention are open as above, but it is not restricted to listed in specification and embodiment utilization, it can be applied to various applicable the field of the invention completely, for those skilled in the art, can easily realize other amendment, therefore do not deviating under the universal that claim and equivalency range limit, the present invention is not limited to specific details and illustrates here and the embodiment described.
Claims (7)
1. a prawn ecological polyculturing method, comprises the following steps:
Step one, the shrimp pond that three triangle dispositions connect is set, wherein, in triangle disposition shrimp pond, the shrimp pond of upper end is shrimp seedling culturing pool, in triangle disposition shrimp pond, two shrimp ponds of lower end are respectively Prawn culturing pool and become shrimp aquaculture pond, wherein, at the bottom of the pond of shrimp seedling culturing pool, successively there is difference in height at the bottom of the pond of Prawn culturing pool and at the bottom of the pond in one-tenth shrimp aquaculture pond, wherein difference in height is respectively 30-40cm, 50-70cm and 80-100cm, the highest at the bottom of wherein said shrimp seedling culturing pool pond, shrimp seedling culturing pool, Prawn culturing pool is 1: 10: 15 with becoming the cultured area ratio in shrimp aquaculture pond, and shrimp seedling culturing pool, the bottom of Prawn culturing pool all rolls tiltedly to one-tenth shrimp aquaculture pond, angle of inclination is greater than 10 degree, afterwards, put in a suitable place to breed by three shrimp pond disinfections and by shrimp seedling in shrimp seedling culturing pool, controlling water level is 30-35cm,
While step 2, culture shrimp seedling, be 20-30cm at Prawn culturing pool retaining to height of water level, in Prawn culturing pool, plant pasture and water afterwards, when pasture and water cover pond floor space more than 50%, increase height of water level to 40-50cm and put into juvenile crab;
Step 3, while culture shrimp seedling, in one-tenth shrimp aquaculture pond, plant pasture and water, when pasture and water cover pond floor space more than 60%, increase height of water level to 60-70cm and put into fry;
Step 4, until the body of shrimp seedling is long rise to 5-6cm after, first the fry become in shrimp aquaculture pond is fished for, and is transferred in seawater cage and cultivates; Afterwards the juvenile crab in Prawn culturing pool is come down in torrents to becoming in shrimp aquaculture pond to cultivate with breeding water body through the gate be arranged between Prawn culturing pool and one-tenth shrimp aquaculture pond, and control cultivation height of water level is 25-30cm;
Step 5, by long for the body in the shrimp seedling culturing pool Prawn rising to 5-6cm through Prawn culturing pool with become the gate between shrimp aquaculture pond to come down in torrents in Prawn culturing pool with breeding water body, and again put second batch juvenile crab in a suitable place to breed in Prawn culturing pool, the ratio of the cultivation density of second batch juvenile crab and the cultivation density of Prawn is 1: 8-14;
Step 6, shrimp seedling culturing pool to be exposed to the sun more than 15 days, to carry out thorough disinfection afterwards, and cultivate into second batch shrimp seedling;
The body of step 7, Prawn in Prawn culturing pool is long when rising to 11-13cm, is fished for by the juvenile crab become in shrimp aquaculture pond, and is transferred in other crab culture pond and continues cultivation; Afterwards, the Prawn in the upper strata water body in Prawn culturing pool is slowly come down in torrents to becoming in shrimp aquaculture pond to cultivate with water body, and keep breeding water body resident water height in Prawn culturing pool to be the cultivation of 20-25cm for juvenile crab;
Step 8, the shrimp seedling in shrimp seedling culturing pool is had in the Prawn culturing pool of juvenile crab cultivate with water body cultivation of slowly coming down in torrents, and keep the height of breeding water body to be 70-90cm;
Step 9, shrimp seedling culturing pool to be exposed to the sun more than 15 days, to carry out thorough disinfection afterwards, and cultivate into next group shrimp seedling;
The body of step 10, Prawn in Prawn culturing pool is long when rising to 11-13cm, and the Prawn in Prawn culturing pool and juvenile crab slowly come down in torrents with breeding water body cultivates to one-tenth shrimp aquaculture pond; Afterwards, the shrimp seedling in shrimp seedling culturing pool is slowly come down in torrents in Prawn culturing pool with water body and cultivates, and keep the height of breeding water body to be 70-90cm;
Step 11, slowly to be come down in torrents by the shrimp seedling in shrimp seedling culturing pool carry out cultivating and putting into juvenile crab to Prawn culturing pool with breeding water body, wherein, the ratio of the cultivation density of juvenile crab and the cultivation density of Prawn is 1: 8-14;
Step 12, wait become the body of shrimp long more than 18cm time, one-tenth shrimp and juvenile crab are fished for;
Step 13, repetition step 6-step 12.
2. prawn ecological polyculturing method as claimed in claim 1, it is characterized in that, in step 4, step 7, step 8 and step 10, the flow velocity that breeding water body slowly comes down in torrents is 0.2-0.5m/s.
3. prawn ecological polyculturing method as claimed in claim 2, it is characterized in that, described gate comprises the upper lock gate and tail gates that arrange from top to bottom, the height ratio of described upper lock gate and tail gates is 2-5: 1, described upper lock gate and tail gates are rotary setting, and described upper lock gate and tail gates open and close separate.
4. prawn ecological polyculturing method as claimed in claim 3, is characterized in that, the cultivation density of described shrimp seedling be 3500-4000 tail/square metre, the cultivation density of Prawn be 800-1200 tail/square metre, become the cultivation density of shrimp be 300-500 tail/square metre.
5. the prawn ecological polyculturing method according to any one of claim 1-4, is characterized in that, the temperature of cultivation of described shrimp seedling is 22-32 DEG C, and the temperature of cultivation of Prawn is 21-29 DEG C, and the cultivation temperature becoming shrimp is 16-28 DEG C.
6. prawn ecological polyculturing method as claimed in claim 5, it is characterized in that, described juvenile crab is river crab, and described fry is grass carp, carp or crucian.
7. prawn ecological polyculturing method as claimed in claim 6, it is characterized in that, described pasture and water are planted in many right-angled intersections at the bottom of Prawn culturing pool with the pond becoming shrimp aquaculture pond, and have been provided with certain intervals between two pasture and water bands, and the growth area of restriction pasture and water is no more than 60% of pond floor space.
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| CN201510348641.0A CN105028265B (en) | 2015-06-23 | 2015-06-23 | A kind of prawn ecological polyculturing method |
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