CN107223598B - A kind of age knife long-tailed anchovy pond tandem ecology breeding cultural method - Google Patents
A kind of age knife long-tailed anchovy pond tandem ecology breeding cultural method Download PDFInfo
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- 238000009395 breeding Methods 0.000 title claims abstract description 100
- 230000001488 breeding effect Effects 0.000 title claims abstract description 98
- 241001430403 Coilia grayii Species 0.000 title claims abstract description 63
- 238000000034 method Methods 0.000 title claims abstract description 13
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 92
- 239000013505 freshwater Substances 0.000 claims abstract description 22
- 241000238557 Decapoda Species 0.000 claims abstract description 21
- 238000005276 aerator Methods 0.000 claims abstract description 19
- 235000013305 food Nutrition 0.000 claims abstract description 16
- 229920000573 polyethylene Polymers 0.000 claims abstract description 4
- 241000251468 Actinopterygii Species 0.000 claims description 23
- 235000019688 fish Nutrition 0.000 claims description 23
- 239000010985 leather Substances 0.000 claims description 9
- 238000005086 pumping Methods 0.000 claims description 6
- 241000143060 Americamysis bahia Species 0.000 claims description 5
- 230000034004 oogenesis Effects 0.000 claims description 5
- 230000002169 extracardiac Effects 0.000 claims description 4
- 238000011049 filling Methods 0.000 claims description 4
- 241001247197 Cephalocarida Species 0.000 claims description 3
- 235000008733 Citrus aurantifolia Nutrition 0.000 claims description 3
- 241000239250 Copepoda Species 0.000 claims description 3
- 235000011941 Tilia x europaea Nutrition 0.000 claims description 3
- 230000005574 cross-species transmission Effects 0.000 claims description 3
- 238000001514 detection method Methods 0.000 claims description 3
- 230000036541 health Effects 0.000 claims description 3
- 230000000366 juvenile effect Effects 0.000 claims description 3
- 239000004571 lime Substances 0.000 claims description 3
- 229920003023 plastic Polymers 0.000 claims description 3
- 239000004033 plastic Substances 0.000 claims description 3
- 238000004659 sterilization and disinfection Methods 0.000 claims description 3
- 230000009182 swimming Effects 0.000 claims description 3
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- 239000008280 blood Substances 0.000 claims 1
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- 230000004083 survival effect Effects 0.000 description 4
- 241001460967 Coilia nasus Species 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 241001454694 Clupeiformes Species 0.000 description 2
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- 241001465754 Metazoa Species 0.000 description 2
- 241001125843 Trichiuridae Species 0.000 description 2
- 238000009360 aquaculture Methods 0.000 description 2
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- 241001282157 Polymixia lowei Species 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
- A01K61/10—Culture of aquatic animals of fish
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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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- 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
A kind of age knife long-tailed anchovy pond tandem ecology breeding cultural method, constructed by tandem pond and prepared, parent selects and put in a suitable place to breed, breed before management, breeding during management, freshwater shrimp put in a suitable place to breed, cultivate during management and fishing step form, it is characterized in that being connected with two adjacent ponds, one is made breeding spand, another makees parent pond, the isolation pool stalk in two ponds is embedded to series connection culvert pipe, respectively sets aerator in parent pond and breeding spand；On April, the middle ten days, parent pond and breeding spand be into fresh water；An age knife long-tailed anchovy is selected to move into parent pond as parent, after parent puts in a suitable place to breed, per two weeks is changed water 1 time, and quantity of exchanged water is controlled 30%, when food organisms density is low, exogenous biological bait to supplement；Water 4-6% is changed daily mid-May, take out plus water continues to mid-June, the fry in parent pond is introduced breeding spand by series connection culvert pipe water flow；Late June enters the cultivation phase, and December is the seine capture of 2 × 3mm polythene net with mesh specification.
Description
Technical field
The present invention relates to the cultivation of knife long-tailed anchovy, an especially age knife long-tailed anchovy pond tandem ecology breeds cultural method.
Background technique
Knife long-tailed anchovy (Coilia ectenes) belongs to Clupeiformes, Anchovy section, long-tailed anchovy category, is commonly called as hairtail, rough cutter fish, Mao Huayu, beard
Fish, tapertail anchovy.It is distributed mainly on one band of China Huang Bohai Sea and the East Sea, all maritime rivers such as Liaohe River, Haihe River, the Yellow River, the Changjiang river, Qian Tang
Jiang Junneng is seen, with fine and tender taste, delicious flavour and it is famous, be the rare migratory fish for enjoying one of " the Changjiang river three delicacies " good reputation
Class.In recent years, due to the influence of the factors such as overfishing and the deterioration of the ecological environment, knife long-tailed anchovy resource sharply fails, and 2016
Year, the Ministry of Agriculture, China also plan knife long-tailed anchovy be included in protection animal register carried out consultation.But the market demand is growing on and on, very
To the awkward situation having price but no buyers, clear and bright front and back in 2016, the knife long-tailed anchovy market price of three liang or so specifications be up to 7000 yuan/
Jin.The breakthrough and popularization of the artificial breeding technology of knife long-tailed anchovy, and then the industrialization breeding production of the fish is promoted, fishery industry can be promoted
The adjustment of structure promotes fishery synergy, fisherman's increased income.Therefore, before knife long-tailed anchovy has good development as artificial breeding new varieties
Scape.
Currently, knife long-tailed anchovy mode of reproduction is broadly divided into 2 major class: a major class is indoor cement pit artificial breeding method, is used
The technical solutions such as artificial induced spawning, fertilized eggs artificial incubation, fingerlings artificial culturing, the method advantage are artificial breedings completely artificial
It is carried out under control condition, seed rearing survival rate is higher, can obtain the seed of batch, such as: a kind of Coilia ectenes in Yangtze River indoor intensive
Change artificial breeding technique and a kind of knife long-tailed anchovy staged mating system；Another major class is ecological breeding, i.e., using after pond is cleared and sterilized, puts
Enter suitable 2 age above parent, allow its natural mating, oviposition, hatching, seed rearing also in this pond, carries out ecological training
It educates, changes water in right amount, manual intervention is considerably less, and certain specification is reached to fry, and seine removes parent, and the method advantage is operation
Simply, essentially without the operation of fining, people receive fast, do not need the training for receiving system, as: a kind of hairtail parent population
Application of Artificial Intelligence mating system and a kind of early breeding method of Coilia ectenes in Yangtze River pond greenhouse ecology.But these methods be all based on 2 ages with
On big specification knife long-tailed anchovy, production practices find, have a week old knife long-tailed anchovy of 40-50% breeding season can gonad development participate in it is numerous
It grows, an age knife long-tailed anchovy individual is smaller, and constitution is thin and weak, and especially one age of postpartum knife long-tailed anchovy constitution is weaker, is not suitable for manual operation, special
It is not a wild age more unsuitable manual operation of knife long-tailed anchovy raised and train, in addition an age knife long-tailed anchovy fish brood amount is also especially few, is also not suitable for advising
Modelling breeding, so, an age knife long-tailed anchovy is not suitable for the large-scale artificial mating system of the artificial induced spawning of first major class.At the same time,
An age knife long-tailed anchovy parent after oviposition, relative to 2 big specification knife long-tailed anchovy more than age, constitution is extremely weak, is not to be suitble to the second major class
In ecological mating system high temperature season draw in the net remove parent, in addition an age knife long-tailed anchovy due to growth and development time it is short, be not suitable for
It is early numerous to carry out pond greenhouse.Therefore, a set of technology is badly in need of safely and reasonably to separate prelarva using an age produced prelarva of knife long-tailed anchovy
And parent, realize the bumper harvests of knife long-tailed anchovy seed rearing and adult fish culture.
Summary of the invention
The object of the present invention is to provide a kind of age knife long-tailed anchovy pond tandem ecologies to breed cultural method.
Technical solution of the present invention is constructed by tandem pond and is prepared, parent selects and puts in a suitable place to breed, breeds preceding management, breeding
Period management, freshwater shrimp manage during putting in a suitable place to breed, cultivating and fishing step composition, it is characterized in that using two adjacent ponds as string
Connection formula pond, the area in each pond are 2-4 mus, and two ponds are one of to be used as breeding spand (seed rearing and current year fingerling
Aquaculture pond), another is embedded to one in the intermediate isolating pool stalk in two ponds as parent pond (parent's cultivation and breeding pool)
Root is used for concatenated culvert pipe, caliber 30-40cm, and culvert pipe is embedded in from below pool bottom 50-60cm and the water surface at 90-100cm, both sides
Expose the pool and obstruct 50cm, culvert pipe two-port is wrapped up with leather strap net, and leather strap net mesh specification is 2 × 3mm；Parent pond is equipped with water inlet,
Water inlet is cased with 60 mesh thin,tough silk filtering mesh bags, and parent pond can not set discharge outlet；Breeding spand is equipped with discharge outlet, discharge outlet twice
Block, first is 2 × 3mm with leather strap net purse seine, mesh specification, and second plastics hard lock net, mesh is 20 mesh, seed
Chi Bushe water inlet；One 1.5 kilowatts of aerator is respectively set in parent pond and breeding spand；Partition-type pond is before use, using 300
Pound/acre lime disinfection pool bottom, remove wild fishes harmful organisms；To April is upper, the middle ten days, outer pool water temperature maintain 16 degree or more,
18 degree hereinafter, parent pond and breeding spand are into fresh water, parent pond intakes from the water inlet in parent pond, and breeding spand is by parent pond through going here and there
Join culvert pipe spill-over water inlet, two ponds divide 3-4 water inlet to all filling it up with, and 1 Zhou Houke of water inlet puts parent in a suitable place to breed；Knife long-tailed anchovy parent be divided to two
Kind: one is the wild knife tapertail anchovy seedling of October the previous year fishing, the age original seed parent through artificial domestication, 11-12 monthly ages；Separately
One is the age filial generation knife long-tailed anchovy parent of artificial breeding, 11 monthly ages；Knife long-tailed anchovy Juvenile stage standard: body surface without wound, each fin ray without
Hyperemia, physical health, without deformity, the normal age knife long-tailed anchovy of swimming as parent's immigration parent pond, parent's specification: the long 10- of body
13cm, weight 3.2-8.0g, 0.32 or more coefficient of condition；Parent transports with blue drum, the diameter 30cm of bucket, height 32cm, bucket
25 liters of capacity, the built-in water of bucket is at the 1/2-2/5 of bucket height when transporting fish, non-aerating, traffic density: original seed parent 10-15 tail/
Bucket, filial generation parent 15-20 tail/bucket are selected and are transported parent and have to band water operation, parent pond breeding density: original seed parent
50-70 tail/mu, filial generation parent 200-300 tail/mu；After parent puts in a suitable place to breed, parent pond aerator fine day noon booting 1.5-2.0 is small
When, booting 4.0-5.0 hours, breeding spand fine day noon open 1.5-2.0 hours at night, do not open aerator at night；Parent pond is every
Two weeks changes water 1 time, and quantity of exchanged water control is changed water and drained by concatenated culvert pipe, by the discharge outlet of breeding spand 30%；Together
When, parent pond food organisms: Copepods and cladocera are monitored, are monitored 1 time weekly, if discovery food organisms density is lower than 1/L,
It needs to fish out and is inoculated with or is supplemented into exogenous biological bait；To mid-May, outer pool water temperature continues in 23-24 degree, pond
Knife long-tailed anchovy parent enters breeding peak period, changes water 4-6% daily, changes water mode: one 4 cun of immersible pump of placement in breeding spand, outside water pump
It is nested with the mesh enclosure that mesh specification is 60 mesh, daily to extracardiac pumping 5-7 hours, to reduce seed pool water level, while level pressure is poor
Parent's water can be made to flow into breeding spand by concatenated culvert pipe, water velocity control is in 0.05m/s hereinafter, to two pond water levels
After flat, then two series connection ponds are filled it up with by parent pond water inlet, pumping adds water to continue to mid-June daily；During breeding, parent
Pond aerator fine day noon be switched on 1.5-2.0 hour, at night booting 5.0-8.0 hours, the aerator opening ways of breeding spand and
Parent pond is the same, monitors the food organisms in parent pond and breeding spand, if discovery food organisms density is lower than 8/L, needs to fish out
Enter exogenous biological bait to be supplemented；Parent pond mid or late June puts oogenesis freshwater shrimp in a suitable place to breed, and breeding density is 3 pounds/acre；Under in 7 months
In ten days, freshwater shrimp seed, specification 2500-3000 tail/jin are supplemented, breeding density is 5-10 pounds/acre；Breeding spand is put in a suitable place to breed in mid-September and is embraced
Ovum freshwater shrimp, breeding density are 3 pounds/acre；After freshwater shrimp is put in a suitable place to breed, shrimps artificial grain's feed is fed in time, is fed at dusk daily 1 time,
Feeding volume is the 1-3% of shrimp weight, and being subject to the next morning shows a small surplus；Late June initially enters the cultivation phase, parent pond and
Breeding spand, aerator fine day noon booting 1h, be switched on 8-10h at night, and bad weather then increases the available machine time；Per half a month changes water 1
Secondary, quantity of exchanged water control changes water mode with management before breeding in 30-40%；It is close every 7-10 days detection seed pond food organisms
Degree 1 time；It is that 2 × 3mm polythene net draws in the net with mesh specification 10 degree of water temperature of December, seine capture, when capture, knife long-tailed anchovy seedling
Kind specification is 1700-3000 tail/mu in the long 12-16cm of body, weight 6-15g, specific yield；Knife long-tailed anchovy parent specification is in the long 20- of body
29cm, weight 40-90g, survival rate is 30% or more.
The outstanding feature of the present invention compared with the existing technology is: creating a set of includes that tandem pond constructs and prepares, is close
Originally an age of the technologies such as management and fishing during management, freshwater shrimp are put in a suitable place to breed, cultivate during management, breeding before selecting and put in a suitable place to breed, breeding
Fry in one age knife long-tailed anchovy parent pond is introduced next door breeding spand using series connection culvert water flow by knife long-tailed anchovy ecology mating system in time
The pool, do not draw in the net fishing remove an age knife long-tailed anchovy parent in the case where, realize efficiently separating for knife long-tailed anchovy parent and produced fry, keep away
Exempt from the problem of knife long-tailed anchovy parent kills and devour knife long-tailed anchovy seed, efficiently utilizes an age produced newly hatched larvae of knife long-tailed anchovy parent, while again
Seed rearing is carried out, the seed yield (1700-3000 tail/mu) of higher pond ecological breeding is obtained；In addition, also obtaining
One age knife long-tailed anchovy postpartum parent is recycling by cultivating, as: being sold as adult fish or participating in next year as parent again
Breeding.The freshwater shrimp of intercropping can both clear up and part is using the original organic sediment in pond bottom, and freshwater shrimp again may be used from numerous young
To absorb the aquatic animal in water body, this is conducive to the water stabilization for maintaining knife long-tailed anchovy parent pond and breeding spand, while freshwater shrimp and children
Body has the bait that can be used as knife long-tailed anchovy parent and seed.The present invention realizes the bumper harvests of knife long-tailed anchovy seed rearing and adult fish culture.
Operation of the present invention is easy, without the operation of fining, does not need the training for receiving system, is easy to be accepted and promote.
Detailed description of the invention
Fig. 1 is the structural schematic diagram in tandem pond.
Fig. 2 is the structural schematic diagram of series connection culvert pipe.
Specific embodiment
Production technology scheme of the present invention includes the following steps:
1) building of tandem pond and preparation: referring to attached drawing, use two adjacent ponds as tandem pond, each pond
Area be 2-4 mu, two ponds are one of to be used as breeding spand 1 (seed rearing and prime fish kind aquaculture pond), another is made
For parent pond 2 (parent's cultivation and breeding pool), embedment one is used for concatenated culvert in the intermediate isolating pool stalk 6 in two ponds
Pipe 5, caliber 30-40cm, culvert pipe are embedded in from 90-100cm, both sides expose the pool and obstruct 50cm below pool bottom 50-60cm and the water surface,
Culvert pipe two-port is wrapped up with leather strap net 8, and leather strap net mesh specification is 2 × 3mm.Parent pond is equipped with water inlet 4, and Inlet water is cased with 60
Mesh thin,tough silk filtering mesh bag, parent pond can not set discharge outlet；Breeding spand is equipped with discharge outlet 7, and discharge outlet is blocked with twice, and first
With leather strap net purse seine, mesh specification is 2 × 3mm, and second plastics hard lock net, mesh is 20 mesh, and breeding spand does not set water inlet
Mouthful；One 1.5 kilowatts of aerator 3 is respectively set in parent pond and breeding spand.Partition-type pond is before use, using 300 pounds/acre of life
The harmful organisms such as wild fishes are removed at lime disinfection pool bottom.
2) parent selects and puts in a suitable place to breed: to April is upper, the middle ten days, outer pool water temperature maintains 16 degree or more, 18 degree hereinafter, parent pond
With breeding spand into fresh water, parent pond intakes from the water inlet in parent pond, and breeding spand is concatenated culvert pipe spill-over by parent pond and intakes,
Two ponds divide 3-4 water inlet to all filling it up with, and 1 Zhou Houke of water inlet puts parent in a suitable place to breed；Knife long-tailed anchovy parent be divided to two kinds: one is the previous years
The wild knife tapertail anchovy seedling of October fishing, the age original seed parent through artificial domestication, 11-12 monthly age；Another kind is artificial breeding
Age filial generation knife long-tailed anchovy parent, 11 monthly ages；Knife long-tailed anchovy Juvenile stage standard: body surface without wound, each fin ray without hyperemia, physical health,
Parent pond, parent's specification: body long 10-13cm, weight 3.2- are moved into as parent without deformity, the normal age knife long-tailed anchovy of swimming
8.0g, 0.32 or more coefficient of condition；Parent transports with blue drum, the diameter 30cm of bucket, height 32cm, 25 liters of the capacity of bucket, fortune
The built-in water of bucket is at the 1/2-2/5 of bucket height when fish, non-aerating, traffic density: original seed parent 10-15 tail/bucket, filial generation parent
15-20 tail/bucket is selected and is transported parent and has to band water operation, parent pond breeding density: original seed parent 50-70 tail/mu,
Filial generation parent 200-300 tail/mu；
3) management before breeding: after parent puts in a suitable place to breed, parent pond aerator fine day noon is switched on 1.5-2.0 hours, is switched at night
4.0-5.0 hours, breeding spand fine day noon opened 1.5-2.0 hours, did not opened aerator at night；Parent pond per two weeks changes water 1
Secondary, quantity of exchanged water general control changes water and drains by series connection culvert pipe, by the discharge outlet of breeding spand 30% or so；Meanwhile it monitoring
Parent pond food organisms: Copepods and cladocera monitor 1 time weekly, if discovery food organisms density is lower than 1/L, need to fish out
Enter exogenous biological bait to be inoculated with or supplemented；
4) manage during breeding: to mid-May, outer pool water temperature continues in 23-24 degree, and pond knife long-tailed anchovy parent enters numerous
It grows peak period, changes water 4-6% daily, change water mode: placing 4 cun of immersible pumps in breeding spand, being nested with mesh specification outside water pump is
The mesh enclosure of 60 mesh, daily to extracardiac pumping 5-7 hours, to reduce seed pool water level, while level pressure difference can make parent's water logical
It crosses series connection culvert pipe and flows into breeding spand, water velocity control hereinafter, after two pond water levels are flat, then passes through parent in 0.05m/s
Pond water inlet fills it up with two series connection ponds, takes out daily plus water continues to mid-June；During breeding, in the aerator fine day of parent pond
Noon is switched on 1.5-2.0 hours, at night booting 5.0-8.0 hours, and the aerator opening ways of breeding spand are as parent pond, monitoring
Food organisms in parent pond and breeding spand, if discovery food organisms density be lower than 8/L, need to fish out into exogenous biological bait into
Row supplement；
5) freshwater shrimp is put in a suitable place to breed: parent pond mid or late June puts oogenesis freshwater shrimp in a suitable place to breed, and breeding density is 3 pounds/acre；Mid or late July,
Freshwater shrimp seed, specification 2500-3000 tail/jin are supplemented, breeding density is 5-10 pounds/acre；Breeding spand puts oogenesis blueness in a suitable place to breed in mid-September
Shrimp, breeding density are 3 pounds/acre；After freshwater shrimp is put in a suitable place to breed, shrimps artificial grain's feed is fed in time, feeds 1 time, feeds at dusk daily
Amount is the 1-3% of shrimp weight, and being subject to the next morning shows a small surplus；
5) manage during cultivating: late June initially enters cultivation phase, parent pond and breeding spand, and aerator fine day noon opens
Machine 1h, be switched on 8-10h at night, and bad weather then increases the available machine time；Per half a month changes water 1 time, and quantity of exchanged water general control is in 30-
40% or so, water mode is changed with management before breeding；Every 7-10 days detection seed ponds food organisms density 1 time；
5) seine fishing: since knife tapertail anchovy kind is had a fiery temperament, seine capture generally in December, water temperature at 10 degree or so,
It is the seine of 2 × 3mm polythene net with mesh specification, when capture, knife long-tailed anchovy seed size is single in the long 12-16cm of body, weight 6-15g
Position yield is 1700-3000 tail/mu；Knife long-tailed anchovy parent specification is in the long 20-29cm of body, and weight 40-90g, survival rate is 30% or more.
Example 1: use the above method, 2015, the 76 of Shanghai Aquatic Product Institute, scientific base, Fengxian#Neutralize 76#
South, area is 2 mu, wherein 76#In be parent pond, 76#South is breeding spand, puts within Yu Siyue 14th knife long-tailed anchovy parent in a suitable place to breed, and parent behaves
An age fish (11 monthly age) for work breeding, 610 tail of quantity are mid-May to mid-June, outside with 4 cun of immersible pumps in breeding spand daily
It draws water 6 hours, pump-out 5%, cultivation to December, seine on December 23 harvesting, breeding spand 76#South obtains 3432 tail knife long-tailed anchovy seedlings
Kind, specific yield is 1716 tails/mu, specification body long 14-16cm, weight 12-15g；Knife long-tailed anchovy parent pond obtains 220 tail adult fishes, at
Motility rate is 36%, and specification is in the long 20-25cm of body, weight 40-60g, while parent pond also obtains 853 tail seeds.
Example 2: use the above method, 2016, the 76 of Shanghai Aquatic Product Institute, scientific base, Fengxian#Neutralize 76#
South, area is 2 mu, wherein 76#In be parent pond, 76#South is breeding spand, puts knife long-tailed anchovy parent, Qin Benwei in a suitable place to breed within Yu Siyue 12nd
An age fish that in October, 2015 captures, by artificial domestication, 159 tail of quantity, mid-May to mid-June, daily in breeding spand
With 4 cun of immersible pumps to extracardiac pumping 6 hours, pump-out 5% is cultivated to December, seine on December 12 harvesting, breeding spand 76#South
5800 tail knife long-tailed anchovy seeds are obtained, specific yield is 2900 tails/mu, specification body long 12-13cm, weight 6g or so；Knife long-tailed anchovy parent pond
154 tail adult fishes are obtained, 96.9%, specification also obtains survival rate in the long 24-29cm of body, weight 50-100g, while in parent pond
550 tail seeds.
Claims (1)
1. a kind of age knife long-tailed anchovy pond tandem ecology breeds cultural method, is constructed by tandem pond and prepared, parent selects
It is managed during putting in a suitable place to breed, cultivate with management, freshwater shrimp during putting in a suitable place to breed, breeding preceding management, breeding and fishing step forms, feature
To use two adjacent ponds as tandem pond, the area in each pond is 2-4 mus, two ponds one of them as seed
Pond, another is as parent pond, and embedment one is used for concatenated culvert pipe in the intermediate isolating pool stalk in two ponds, and caliber is
30-40cm, culvert pipe are embedded in from 90-100cm, both sides expose the pool and obstruct 50cm, culvert pipe two-port below pool bottom 50-60cm and the water surface
It is wrapped up with leather strap net, leather strap net mesh specification is 2 × 3mm；Parent pond is equipped with water inlet, and water inlet is cased with 60 mesh thin,tough silk filter screens
Bag, parent's Chi Bushe discharge outlet；Breeding spand is equipped with discharge outlet, and discharge outlet blocked with twice, and first with leather strap net purse seine, mesh
Specification is 2 × 3mm, and second plastics hard lock net, mesh is 20 mesh, and breeding spand does not set water inlet；Parent pond and breeding spand
Inside respectively set one 1.5 kilowatts of aerator；It is removed before use, using 300 pounds/acre of lime disinfection pool bottom in tandem pond
Wild fishes harmful organisms；To April is upper, the middle ten days, pond water temperature maintain 16 degree or more, 18 degree hereinafter, parent pond and breeding spand into
Fresh water, parent pond intake from the water inlet in parent pond, and breeding spand is concatenated culvert pipe spill-over by parent pond and intakes, two ponds point
To all filling it up with, water inlet put parent in a suitable place to breed after 1 week for 3-4 water inlet；Knife long-tailed anchovy Juvenile stage standard: body surface is without wound, each fin ray without filling
Blood, physical health, without deformity, the normal age knife long-tailed anchovy of swimming as parent's immigration parent pond, parent's specification: the long 10-13cm of body,
Weight 3.2-8.0g, 0.32 or more coefficient of condition；Parent transports with blue drum, the diameter 30cm of bucket, height 32cm, the capacity of bucket
25 liters, the built-in water of bucket is at the 1/2-2/5 of bucket height when transporting fish, and non-aerating, traffic density: 10-15 tail/bucket is selected and transported
Parent has to band water and operates, parent pond breeding density: 50-70 tail/mu；After parent puts in a suitable place to breed, in the aerator fine day of parent pond
Noon is switched on 1.5-2.0 hours, at night booting 4.0-5.0 hours, and breeding spand fine day noon opens 1.5-2.0 hours, does not open at night
Aerator；Parent pond per two weeks changes water 1 time, and quantity of exchanged water control changes water and pass through concatenated culvert pipe, by breeding spand 30%
Discharge outlet draining；Meanwhile parent pond food organisms: Copepods and cladocera are monitored, it monitors 1 time weekly, food organisms density is low
In 1/L, needs to fish out and be supplemented into exogenous biological bait；To mid-May, pond water temperature continues in 23-24 degree, pond
Knife long-tailed anchovy parent enters breeding peak period, changes water 4-6% daily, changes water mode: one 4 cun of immersible pump of placement in breeding spand, outside water pump
It is nested with the mesh enclosure that mesh specification is 60 mesh, daily to extracardiac pumping 5-7 hours, to reduce seed pool water level, while level pressure is poor
Parent's water can be made to flow into breeding spand by concatenated culvert pipe, water velocity control is in 0.05m/s hereinafter, to two pond water levels
After flat, then two series connection ponds are filled it up with by parent pond water inlet, pumping adds water to continue to mid-June daily；During breeding, parent
Pond aerator fine day noon be switched on 1.5-2.0 hour, at night booting 5.0-8.0 hours, the aerator opening ways of breeding spand and
Parent pond is the same, monitors the food organisms in parent pond and breeding spand, and food organisms density is lower than 8/L, needs to fish out into external source
Biological feed is supplemented；Parent pond mid or late June puts oogenesis freshwater shrimp in a suitable place to breed, and breeding density is 3 pounds/acre；Mid or late July mends
Freshwater shrimp seed, specification 2500-3000 tail/jin are filled, breeding density is 5-10 pounds/acre；Breeding spand puts oogenesis blueness in a suitable place to breed in mid-September
Shrimp, breeding density are 3 pounds/acre；After freshwater shrimp is put in a suitable place to breed, shrimps artificial grain's feed is fed in time, feeds 1 time, feeds at dusk daily
Amount is the 1-3% of shrimp weight；Late June initially enters cultivation phase, parent pond and breeding spand, and aerator fine day noon is switched on 1h,
Booting 8-10h, bad weather then increase the available machine time at night；Per half a month changes water 1 time, and quantity of exchanged water is controlled in 30-40%, changes water side
Formula is the same as management before breeding；Every 7-10 days detection seed ponds food organisms density 1 time；10 degree of water temperature of December, mesh is used
Specification is the seine of 2 × 3mm polythene net, seine capture.
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