CN113598096A - Method for improving comprehensive efficiency of carp polyculture pond - Google Patents
Method for improving comprehensive efficiency of carp polyculture pond Download PDFInfo
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- CN113598096A CN113598096A CN202111053183.XA CN202111053183A CN113598096A CN 113598096 A CN113598096 A CN 113598096A CN 202111053183 A CN202111053183 A CN 202111053183A CN 113598096 A CN113598096 A CN 113598096A
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- carp
- jin
- age
- fries
- carps
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- 241000252233 Cyprinus carpio Species 0.000 title claims abstract description 74
- 238000009344 polyculture Methods 0.000 title claims abstract description 23
- 238000000034 method Methods 0.000 title claims abstract description 11
- 241000252210 Cyprinidae Species 0.000 claims abstract description 48
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 20
- XKMRRTOUMJRJIA-UHFFFAOYSA-N ammonia nh3 Chemical compound N.N XKMRRTOUMJRJIA-UHFFFAOYSA-N 0.000 abstract description 7
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 abstract description 7
- 239000001301 oxygen Substances 0.000 abstract description 7
- 229910052760 oxygen Inorganic materials 0.000 abstract description 7
- IOVCWXUNBOPUCH-UHFFFAOYSA-M Nitrite anion Chemical compound [O-]N=O IOVCWXUNBOPUCH-UHFFFAOYSA-M 0.000 abstract description 5
- 241000700141 Rotifera Species 0.000 abstract description 5
- 238000009395 breeding Methods 0.000 abstract description 2
- 230000001488 breeding effect Effects 0.000 abstract description 2
- 230000000694 effects Effects 0.000 abstract 1
- 241000252234 Hypophthalmichthys nobilis Species 0.000 description 10
- 230000008901 benefit Effects 0.000 description 8
- 238000005276 aerator Methods 0.000 description 6
- 241000251468 Actinopterygii Species 0.000 description 3
- 241001609213 Carassius carassius Species 0.000 description 3
- 230000005611 electricity Effects 0.000 description 3
- 238000009360 aquaculture Methods 0.000 description 2
- 244000144974 aquaculture Species 0.000 description 2
- 210000003608 fece Anatomy 0.000 description 2
- 238000003306 harvesting Methods 0.000 description 2
- 238000009342 intercropping Methods 0.000 description 2
- JVMRPSJZNHXORP-UHFFFAOYSA-N ON=O.ON=O.ON=O.N Chemical compound ON=O.ON=O.ON=O.N JVMRPSJZNHXORP-UHFFFAOYSA-N 0.000 description 1
- 230000006978 adaptation Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000004083 survival effect Effects 0.000 description 1
Images
Classifications
-
- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01K—ANIMAL HUSBANDRY; CARE OF BIRDS, FISHES, INSECTS; 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
-
- 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
The invention relates to a method for improving the comprehensive efficiency of a carp polyculture pond, which comprises the following steps: when fries are put in the breeding pond, the put second-age carp fries are large-size second-age carp fries of 0.9-1 jin/tail, and the putting density is 1800 jin/mu; putting the first-age carp fries with the specification of 100-; the second-instar carps are discharged from the pool when the specification reaches 2.3-2.5 jin/tail, and are listed in a wrong season; stopping feeding and overwintering when the specification of the first-age carps reaches 1-1.2 jin/tail; the specification of the first-age carp in spring of the second year reaches 0.9-1 jin/tail, and the first-age carp is used as the large-specification second-age carp fry of the second year. The method can produce large-size second-age carp fries; the density of the rotifers in the water body can be reduced, and the dissolved oxygen in the water body can be increased; the bait coefficient of the carp is reduced; ammonia nitrogen and nitrite are reduced, and the water environment is improved; the morbidity of the carps is reduced, and the cost is reduced; high yield and effect and high comprehensive efficiency.
Description
Technical Field
The invention relates to an aquaculture method, in particular to a method for improving the comprehensive efficiency of a carp polyculture pond.
Background
In the existing carp polyculture pond, the fry stocking time is generally 3 months from the bottom to 4 months, and the water temperature is 17-18 ℃. The second-instar carp fries are thrown into the pond with the specification of 0.2 jin to 0.3 jin per tail and the throwing density of 1800 jin per mu; the crucian fry is thrown into the crucian carp fries with the specification of 10 fries/jin and the throwing density of 500 fries/mu; the spotted silver carp fry is thrown by the feed with the specification of 0.7-1 jin/tail and the throwing density of 70 pieces/mu; the silver carp is thrown in the feed with the specification of 0.7-0.8 jin/tail and the density of 150 kg/mu. And taking out of the pool at the bottom of 12 months to harvest 0.8 jin/tail of crucian, 4.5 jin/tail of spotted silver carp and 2.5 jin/tail of silver carp.
According to the carp polyculture mode, the carp stocking specification is small, one crop of carp in a year, the carp bait coefficient is high, the ammonia nitrogen content in water is high, the dissolved oxygen is low, the morbidity is high, the power consumption is high, the carps are gathered to the market, the market price is low, and therefore the comprehensive efficiency of the carp aquaculture pond is low.
Disclosure of Invention
The invention aims to solve the technical problem of providing a method for improving the comprehensive efficiency of a carp polyculture pond by adopting a first-age carp and second-age carp polyculture mode.
The technical scheme adopted by the invention is as follows:
a method for improving the comprehensive efficiency of a carp polyculture pond is carried out according to the following steps:
(1)3, 3 months at the bottom of-4 months, and when the fingerlings are put in culture, selecting large-size second-age carp fingerlings with the specification of 0.9 jin to 1 jin/tail, and putting the fingerlings with the density of 1800 jin/mu;
(2) putting one-year carp fries in the middle ten days of 6 months to the beginning of 7 months, wherein the specification is 100 plus 150 fries/jin, and the putting density is 1000 to 1500 fries/mu;
(3) in the last ten days of 7 months, when the specification of the second-instar carps reaches 2.3 jin to 2.5 jin/tail, the carps are discharged from the pool in advance and are listed in wrong seasons;
(4) in the last ten days of 11 months, stopping feeding when the specification of the first-age carp reaches 1 jin to 1.2 jin/tail, and preparing for overwintering;
(5) after overwintering, the specification of the first-age carp in spring of the second year reaches 0.9 jin to 1 jin per tail, and the second-year carp fry is used as a second-year large-specification second-age carp fry.
Compared with the traditional carp polyculture mode, the carp polyculture mode adopting the technical scheme has the advantages that:
firstly, large-size second-age carp fries can be produced. 100 plus one-year carp fries of 150/jin are put in the middle ten days to the beginning of 7 months in the current year, the first-year carp fries and the second-year carp fries (0.9-1 jin/kg) are mixed for culture, the large-size second-year carp fries (0.9-1 jin/kg) are harvested in the second year, and the specification of the common second-year carp fries is 0.2-0.3 jin/kg.
Secondly, the density of the rotifers in the water body can be reduced, and the dissolved oxygen in the water body can be increased. The thrown first-age carp fries can prey on excessive rotifers in water, so that dissolved oxygen in the water is increased.
Thirdly, the bait coefficient of the carp can be reduced. Residual bait left by the second-age carps and undigested food excrement of the second-age carps are eaten by utilizing the feeding characteristics of the first-age carps, so that the aim of reducing the bait coefficient of the carps is fulfilled.
Fourthly, the ammonia nitrogen and nitrite can be reduced, and the water environment can be improved. The first-age carps ingest residual baits and feces in the water, thereby reducing ammonia nitrogen and nitrite.
Fifthly, the incidence rate of the carp can be reduced. The adult carps of the second-instar carps are out of the pool and come into the market in 8-month middle ten days, and the incidence of the carps is reduced when the peak period of the onset of the carps is missed (the high temperature period of 8-9 months).
Sixthly, the cost can be reduced. The adult fish can be discharged from the pond in the middle ten days of 8 months, the aerator is started up concentratedly after the high-temperature period of 8-9 months, the starting-up time of the aerator is reduced, and the electricity charge is saved.
And seventhly, the benefit can be increased. The carps come into the market in wrong seasons, the market price of the carps is high, and the benefit is doubled.
Eighthly, the yield can be increased. The second batch of carps are cultured in the pond, one batch of carps become adult carps, and one batch of carps become large-size carp fries, so that the culture yield is increased.
In conclusion, the comprehensive efficiency of the carp polyculture pond is improved.
Drawings
Fig. 1 is a route diagram of a carp polyculture mode according to an embodiment of the present invention.
Detailed Description
The present invention is described in detail below with reference to the drawings and examples.
Referring to fig. 1, in the method for improving the comprehensive efficiency of the carp polyculture pond provided in this embodiment, the areas of the polyculture pond are 50, 43 and 56 acres respectively, which are the same as those of the traditional carp, crucian carp, spotted silver carp and silver carp polyculture pond, and specifically, the method is performed according to the following steps:
(1) putting large-size second-age carp fries: the fry stocking time is 3 months from the bottom to 4 months at the beginning, and the water temperature is 17-18 ℃; the second-instar carp fries are thrown into the pond with the specification of 0.9-1 jin/tail and the throwing density of 1800 jin/mu; the crucian fry is thrown into the crucian carp fries with the specification of 10 fries/jin and the throwing density of 500 fries/mu; the spotted silver carp fry is thrown by the feed with the specification of 0.7-1 jin/tail and the throwing density of 70 pieces/mu; the silver carp fries are thrown in the feed with the specification of 0.7-0.8 jin/tail and the throw density of 150 kg/mu. Except for carp fries, the putting time, the matched variety and the putting density and specification of the matched variety for polyculture of other carp fries have no special requirements with common carp pond polyculture.
2) Putting first-age carp fries: and 5, putting the carp fries of one year in the middle ten days of 6 months to the beginning of 7 months, wherein the specification is 100-.
(3) The carps of the second age are discharged from the pool in advance and are listed on the market in advance: in ten days of 7 months, the specification of the second-instar carps reaches 2.3 jin to 2.5 jin per tail, the second-instar carps reach the specification of appearing on the market, the market price is high in 6-7 months, the carps appear on the market in wrong seasons, the market price is high, and the benefit is high; meanwhile, the adult carps of the second instar appear on the market in the middle of 8 months, the onset peak period of the carps is missed (the incidence rate of the carps is reduced in the high-temperature period of 8-9 months), and the adult carps finish appearing in the middle of 8 months, the aerator is started up in a centralized manner in the high-temperature period of 8-9 months, so that the starting time of the aerator is shortened, and the electricity charge is saved.
(4) And taking out of the pool at the bottom of 12 months to harvest 0.8 jin/tail of crucian, 4.5 jin/tail of spotted silver carp and 2.5 jin/tail of silver carp.
(5) Breeding first-instar carp fries: in the last ten days of 11 months, the survival rate of the carp fries of one year reaches 95 percent, the specification reaches 1 jin to 1.2 jin/tail, and the feeding is stopped to prepare for overwintering.
(6) Overwintering a large-size carp fry pond of the second-instar carps: the age of the first-year carps reaches 1 jin to 1.2 jin per tail, after overwintering, second-year spring large-size fingerlings are obtained, the size reaches 0.9 jin to 1 jin per tail, and the second-year carps are used as the second-year large-size fingerlings.
The mixed culture mode of carp fries put twice, namely the first-age carp and the second-age carp, has the advantages that:
firstly, producing large-size second-age carp fries. 100 plus 150 carp fries/jin are put in the middle ten days to the beginning of 7 months in the current year, and the second-age carp fries (0.9-1 jin/jin) are mixed and cultured, the large-size second-age carp fries (0.9-1 jin/jin) are harvested in the second year, and the specifications are larger compared with the specifications of the common second-age carp fries (0.2-0.3 jin/jin);
and secondly, the density of the rotifers in the water body is reduced, and the dissolved oxygen in the water body is increased. The thrown first-age carp fries can prey on excessive rotifers in water, so that the dissolved oxygen in the water is increased; see table 1.
Table 1: comparison table of dissolved oxygen in pond polyculture water of intercropping first-instar fry and common pond polyculture water for 7-10 months
Thirdly, the bait coefficient of the carp is reduced. Residual bait left by the second-age carps and undigested food excrement of the second-age carps are eaten by utilizing the feeding characteristics of the first-age carps, so that the aim of reducing the bait coefficient of the carps is fulfilled; see table 2.
Table 2: bait coefficient comparison table for intercropping of first-instar carp fry in pond polyculture and common pond polyculture
Fourthly, reducing ammonia nitrogen and nitrite and improving water environment. The first-age carps ingest residual baits and feces in water, so that ammonia nitrogen and nitrite are reduced; see tables 3 and 4.
Table 3: ammonia nitrogen comparison table for mixed culture of intercropped first-instar fry in pond and mixed culture in common pond
Table 4: nitrite nitrogen comparison table for mixed culture of intercropped first-instar fish fry in pond and common pond
Fifthly, the incidence rate of the carp is reduced. The adult carps of the second-instar carps are out of the pool and come into the market in 8-month middle ten days, the peak period of the onset of carps (8-9-month high temperature period) is missed, and the incidence of carps is reduced.
Sixthly, the cost is reduced. The adult fish can be discharged from the pond in the middle ten days of 8 months, the aerator is started up concentratedly after the high-temperature period of 8-9 months, the starting-up time of the aerator is reduced, and the electricity charge is saved.
And seventhly, the benefit is increased. The carps come into the market in wrong seasons, the market price of the carps is high, and the benefit is doubled; see table 5.
Table 5: total benefit comparison table for mixed culture of intercropped first-instar fry in pond and common pond
Eighthly, the yield is increased. The second crop of carps are cultivated in the pond, one crop of carps becomes adult carps, and one crop of large-size fingerlings are cultivated. The culture yield is increased by 26.62%; see table 6.
Table 6: total yield comparison table for mixed culture of intercropped first-instar fry in pond and mixed culture in common pond
Although the present invention has been described in detail with reference to the preferred embodiments, it should be understood that various modifications and adaptations of the present invention may occur to those skilled in the art without departing from the spirit and scope of the present invention.
Claims (1)
1. A method for improving the comprehensive efficiency of a carp polyculture pond is characterized by comprising the following steps:
(1)3, 3 months at the bottom of-4 months, and when the fingerlings are put in culture, selecting large-size second-age carp fingerlings with the specification of 0.9 jin to 1 jin/tail, and putting the fingerlings with the density of 1800 jin/mu;
(2) putting one-year carp fries in the middle ten days of 6 months to the beginning of 7 months, wherein the specification is 100 plus 150 fries/jin, and the putting density is 1000 to 1500 fries/mu;
(3) in the last ten days of 7 months, when the specification of the second-instar carps reaches 2.3 jin to 2.5 jin/tail, the carps are discharged from the pool in advance and are listed in wrong seasons;
(4) in the last ten days of 11 months, stopping feeding when the specification of the first-age carp reaches 1 jin to 1.2 jin/tail, and preparing for overwintering;
(5) after overwintering, the specification of the first-age carp in spring of the second year reaches 0.9 jin to 1 jin per tail, and the second-year carp fry is used as a second-year large-specification second-age carp fry.
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| CN202111053183.XA CN113598096A (en) | 2021-09-08 | 2021-09-08 | Method for improving comprehensive efficiency of carp polyculture pond |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU2218759C1 (en) * | 2002-06-25 | 2003-12-20 | Федеральное государственное унитарное предприятие "Всероссийский научно-исследовательский институт пресноводного рыбного хозяйства" | Method for raising fish in polyculture |
| CN105766743A (en) * | 2016-04-19 | 2016-07-20 | 柳州市文华养殖场 | Method for polyculture of carp |
| CN106508748A (en) * | 2016-11-09 | 2017-03-22 | 湖南澳华农牧科技有限公司 | Novel method for culturing grass carp, crucian carp, carp and bream |
| CN107155969A (en) * | 2017-06-15 | 2017-09-15 | 合肥慧明瀚生态农业科技有限公司 | A kind of carp raises together with cultural method |
| CN109496923A (en) * | 2018-11-16 | 2019-03-22 | 福安市田禾顺种植专业合作社 | A kind of efficient and healthful cultural method of fresh-water fishes |
-
2021
- 2021-09-08 CN CN202111053183.XA patent/CN113598096A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU2218759C1 (en) * | 2002-06-25 | 2003-12-20 | Федеральное государственное унитарное предприятие "Всероссийский научно-исследовательский институт пресноводного рыбного хозяйства" | Method for raising fish in polyculture |
| CN105766743A (en) * | 2016-04-19 | 2016-07-20 | 柳州市文华养殖场 | Method for polyculture of carp |
| CN106508748A (en) * | 2016-11-09 | 2017-03-22 | 湖南澳华农牧科技有限公司 | Novel method for culturing grass carp, crucian carp, carp and bream |
| CN107155969A (en) * | 2017-06-15 | 2017-09-15 | 合肥慧明瀚生态农业科技有限公司 | A kind of carp raises together with cultural method |
| CN109496923A (en) * | 2018-11-16 | 2019-03-22 | 福安市田禾顺种植专业合作社 | A kind of efficient and healthful cultural method of fresh-water fishes |
Non-Patent Citations (3)
| Title |
|---|
| 《第一书记扶贫读本》编写组: "《第一书记扶贫读本》", 30 June 2016 * |
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Application publication date: 20211105 |