CN106804498B - A kind of high-density breeding method of the new oppossum shrimp in east in Portunus trituberculatus Miers culture pond - Google Patents
A kind of high-density breeding method of the new oppossum shrimp in east in Portunus trituberculatus Miers culture pond Download PDFInfo
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- CN106804498B CN106804498B CN201710067497.2A CN201710067497A CN106804498B CN 106804498 B CN106804498 B CN 106804498B CN 201710067497 A CN201710067497 A CN 201710067497A CN 106804498 B CN106804498 B CN 106804498B
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Abstract
The invention discloses a kind of high-density breeding method of the new oppossum shrimp in east in Portunus trituberculatus Miers culture pond, on the basis of existing swimming crab aquaculture model, the cultivation of the high-density breeding and japonicus of the new oppossum shrimp in east is combined, it is cultivated using Portunus trituberculatus Miers culture pond, Portunus trituberculatus Miers cultivation can all feed a large amount of iced trash fish daily and ingest for it.Iced trash fish and swimming crab dead individuals serve not only as humus and provide direct food source for the growth of oppossum shrimp, japonicus, and can be used as nutritive salt to enrich the demand of ingesting that the diet biomass in water body meets oppossum shrimp, japonicus indirectly.The present invention neither influences the yield of original breed variety, and can achieve the purpose that the new oppossum shrimp in High Density Cultivation east, so that the new oppossum shrimp in east is played the advantage of its high-quality living bait in the nursery of diversified economy fish, promotes the level of entire nursery industry.
Description
Technical field
The present invention relates to technical field of aquaculture, in particular to a kind of new oppossum shrimp in east is in Portunus trituberculatus Miers culture pond
High-density breeding method.
Background technique
The new oppossum shrimp in east (Neomysis orientalis) it is under the jurisdiction of Arthropoda (Arthropoda), Crustachia
(Crustacea), Malacostraca (Malacostraca), Mysidacea (Mysidacea), oppossum shrimp section (Mysidae), Neomysis
(Neomysis).It is distributed widely in coastal area of china, especially coastal salt-fresh water sea area is especially common.The new oppossum shrimp in east has wide
Temperature, eurysalinity；Belong to omnivorousness type, can both filter food unicellular alga, wheel animalcule, artemia eggs, Copepods and cladocera, can also ingest
Organic debris and tiny organism, or even can ingest greater than the arrow worms of its body several times；It can be between benthon and planktonic organism
Tie is formed, is also the important component of marine organisms chain in certain waters.The new oppossum shrimp nutritive value in east is very high, containing rich
Rich protein, lipid and various trace elements, can not only eat raw, be fermented into shrimp paste and shrimp sauce, even more diversified economy aquatic products
Animal (Larimichthys crocea, grouper, turbot, lefteye flounder, Fugu, red porgy, hippocampus, river crab megalops larva, Sepiella maindroni etc.)
High-quality living bait.
Currently, natural fishing is only leaned in the acquisition of the new oppossum shrimp in east, quantity of the catch is seldom and unstable, is difficult to meet a variety of
The demand largely ingested in economic fish seedling raising process to it；Just because of this, in fact in the seedling raising process of diversified economy fish
Also the use to oppossum shrimp is abandoned.And production practices prove (such as Sepiella maindroni), seedling at least can be improved in the new oppossum shrimp in east
50% or more survival rate of kind, it is unquestionable for the nursery success rate for promoting aquatic livestock.
Portunus trituberculatus Miers cultivation in Zhoushan Region is more.Therefore, how on the basis of existing aquaculture model, a kind of east is established
The method of the new oppossum shrimp High Density Cultivation in side, neither influences the yield of original breed variety, and it is new to reach High Density Cultivation east
The purpose of oppossum shrimp enables the new oppossum shrimp in east to play the advantage of its high-quality living bait in the nursery of diversified economy fish, is promoted
The level of entire nursery industry, the problem of becoming urgent need to resolve.
Summary of the invention
The purpose of the present invention is to provide a kind of high-density breeding side of the new oppossum shrimp in east in Portunus trituberculatus Miers culture pond
Method neither influences the yield of original breed variety, and can achieve the purpose that the new oppossum shrimp in High Density Cultivation east, makes the new oppossum shrimp in east
The advantage that its high-quality living bait can be played in the nursery of diversified economy fish, promotes the level of entire nursery industry.
The technical solution adopted by the present invention to solve the technical problems is:
A kind of high-density breeding method of the new oppossum shrimp in east in Portunus trituberculatus Miers culture pond, includes the following steps:
(1) preparation of culture pond: being raised together using Portunus trituberculatus Miers culture pond, will before Portunus trituberculatus Miers breeding
Pool water drains and continues exposure after rinsing dredging with giant；50~80cm of culture pond water inlet before cultivating, with 80~120ppm
Bleaching powder disinfection, and four wall of culture pond disinfection of splashing, disinfection to culture pond injects fresh seawater to the depth of water 1.5~2 after completing
Rice；Because oppossum shrimp culture is using Portunus trituberculatus Miers culture pond, so the disinfection of culture pond will not only meet Portunus trituberculatus Miers nursery
It needs, more to take into account the culture demand of later period oppossum shrimp.After the completion of disinfection, water level adds to 1.5~2 meters or so, and water level is not required at this time
Highest is added to, mainly to add based on new water before June.
(2) seed is launched: annual May launches Portunus trituberculatus Miers seedling to culture pond, and Portunus trituberculatus Miers seedling injected volume is every
Mu 2000~3500；August part launches japonicus seedling, and japonicus seedling injected volume is 10,000~1.2 ten thousand tail per acre；September part connects
The kind new oppossum shrimp in east, inoculum density are 0.5~1kg/ mus of meter Shui Ti；
(3) management is fed:
Portunus trituberculatus Miers feeds mode are as follows: it is fed using the mixture of wild fishes and artifical compound feed, it is sooner or later each
It feeds once, puts seedling to 8~10% that daily feeding volume in July is Portunus trituberculatus Miers total weight, daily feeding volume in 8~October is three
The 10~15% of wart swimming crab total weight, daily feeding volume is the 3~5% of Portunus trituberculatus Miers total weight from November, until water temperature is low
It is fed in 8 DEG C of stoppings；
During the new oppossum shrimp cultivation in east, Penaeus Vannmei artifical compound feed, water transfer were launched to culture pond every 5~7 days
Precious and probiotics, Penaeus Vannmei artifical compound feed injected volume are 1~1.5kg/ mus, and water regulating agent injected volume is 0.5~1kg/
Mu, probiotics injected volume are 0.2~0.5kg/ mus.Because oppossum shrimp likes ingest unicellular alga, wheel animalcule, Copepods etc., grasp in this way
Make to keep the good water quality of culture pond and sufficient food organisms.Generally, every 5~7 days, South America of splashing into culture pond is white right
The microorganism formulations such as shrimp mixed feed and water regulating agent, probiotics guarantee sufficient nutritive salt supply, maintain good water in pond
Color.
The present invention is on the basis of existing swimming crab aquaculture model, by the high-density breeding and japonicus of the new oppossum shrimp in east
Cultivation be combined, cultivated using Portunus trituberculatus Miers culture pond, Portunus trituberculatus Miers cultivation can all feed a large amount of fresh miscellaneous daily
Fish ingests for it.Iced trash fish and swimming crab dead individuals serve not only as humus and provide for the growth of oppossum shrimp, japonicus
Direct food source, and can be used as nutritive salt and meet oppossum shrimp, japonicus indirectly to enrich the diet biomass in water body
Demand of ingesting.Can effectively improve Portunus trituberculatus Miers cultivation farming site and bait utilization rate, and oppossum shrimp, japonicus,
Swimming crab three mixed breeding is independent of each other, and without competitive relation, culturing economic is good, and resource makes full use of.New oppossum shrimp connects in east
Kind of time should select in September part, oppossum shrimp mating period in autumn at a time when this, not only be easy to fish, but also oppossum shrimp can be after after being inoculated with
Continuous breeding；For Portunus trituberculatus Miers at this time up to 2 liang or so, the figure that will not ingest only has the inoculation oppossum shrimp of 1cm or so, and August part is launched
Japonicus seedling will not be influenced with Portunus trituberculatus Miers, be also independent of each other between the new oppossum shrimp of japonicus and east.Japonicus
It is to make full use of resource supplement cultivation, not needing additionally to feed feed during mixed breeding can meet demand.The new oppossum shrimp in east
Phototaxis is strong, can use phototaxis trapping, and japonicus phototaxis is not strong, and power of jumping is extremely strong, therefore avoids capture
The case where capturing japonicus together when oppossum shrimp appearance.The new oppossum shrimp reproduction speed in east is than very fast, after certain scale to be achieved,
Can continue daily from culture pond capture part with feeding economic fish (when such as Sepiella maindroni winter nursery, November
Part will start the oppossum shrimp that ingests), as living bait.The present invention new oppossum shrimp in intercropping east and Japan in Portunus trituberculatus Miers culture pond
Prawn, the sufficient supply of bait, the artificial adjustment of water quality, meticulous labor management during being cultivated using Portunus trituberculatus Miers, and tie
The fast biological characteristics of the new oppossum shrimp reproduction speed in east are closed, achieve the purpose that the new oppossum shrimp High Density Cultivation in east.
Preferably, the substrate of culture pond be argillo arenaceous soil, four wall of culture pond be cement slope protection, culture pond be it is rectangular, four
Angle is arc-shaped, and 5 mu of culture pond area, the pool is 2~2.5 meters deep, the sieve Juan net of water inlet 150~200 mesh of installation, among culture pond
Bottom is equipped with sewage draining exit, and sewage draining exit is covered with 80 mesh nylon wire bands, and is equipped with waterwheel aerator two of 1 kilowatt.
Preferably, two waterwheel aerators arrange that position is diagonal along any one diagonal line of culture pond
At the one third of line total length and 2/3rds.
Preferably, Portunus trituberculatus Miers, in harvesting in January next year, the new oppossum shrimp in east starts harvest from November 15 current year and feeds
Sepiella maindroni is supported, sustained yield until Portunus trituberculatus Miers all complete by capture, catch in Portunus trituberculatus Miers by japonicus
Completion is arrested using cage before obtaining.Illustrate, generally before Portunus trituberculatus Miers is arrested, it is necessary to first catch japonicus.Generally
It at the beginning of 1 month, is captured using cage, receives net daily and put net, until catching light.
Preferably, the weight proportion of the mixture of wild fishes and artifical compound feed is wild fishes: artifical compound feed=
7:3~8:2.
Preferably, it is primary to change water daily during cultivation when same day average temperature >=27 DEG C, water mode is changed using bottom,
Each bottom discharge 30 ~ 50cm height water layer；At 27 DEG C of same day average temperature <, it is primary to change within 2 ~ 3 days water every time, is changed using bottom
Water mode, each 10 ~ 30cm of bottom discharge height water layer.New oppossum shrimp has the habit that cluster is cruised in east, likes hiding in pool wall
In the water plant of surrounding.In conjunction with this habit, culture pond is equipped with intermediate sewage draining exit, is all made of bottom blow-down every time, is difficult to cause oppossum shrimp
A large amount of escapes, be sure not surface layer and change water.
Preferably, the new oppossum shrimp in east supports first 5~7 days of inoculation, water regulating agent and probiotics are launched to culture pond, water regulating agent is thrown
It is high-volume 0.5~1kg/ mus, probiotics injected volume is 0.2~0.5kg/ mus.
Preferably, the salinity of culture pond is controlled in 26.5-27.5 ‰.
Preferably, impregnating 2~3 hours in advance, before Penaeus Vannmei artifical compound feed is launched then with 80~100
The full pool is uniformly splashed again after the stranding of mesh mesh belt is broken.
The beneficial effects of the present invention are: neither influencing the yield of original breed variety, and High Density Cultivation east can be reached
The purpose of new oppossum shrimp, at the same can also Fed Penaeus japonicus, comprehensively utilize resource, enable the new oppossum shrimp in east in diversified economy fish
Nursery in play the advantage of its high-quality living bait, promote the level of entire nursery industry.
Specific embodiment
Below by specific embodiment, technical scheme of the present invention will be further explained in detail.
In the present invention, if not refering in particular to, used raw material and equipment etc. are commercially available or commonly used in the art.
Method in following embodiments is unless otherwise instructed the conventional method of this field.
Embodiment 1:
A kind of high-density breeding method of the new oppossum shrimp in east in Portunus trituberculatus Miers culture pond, includes the following steps:
(1) preparation of culture pond: being raised together using Portunus trituberculatus Miers culture pond, will before Portunus trituberculatus Miers breeding
Pool water drains and continues exposure after rinsing dredging with giant；Culture pond water inlet 50cm, is disappeared with the bleaching powder of 80ppm before cultivating
Poison, and four wall of culture pond disinfection of splashing, disinfection to culture pond inject fresh seawater to 1.5 meters of the depth of water after completing, the salt of culture pond
Degree control is in 26.5-27.5 ‰.The substrate of culture pond is argillo arenaceous soil, and four wall of culture pond is cement slope protection, and culture pond is rectangular
Shape, quadrangle are arc-shaped, and 5 mu of culture pond area, the pool is 2 meters deep, and the slope ratio on the pool ridge is 1:1.5, and water inlet installs the sieve Juan of 150 mesh
Net stops the entrance of the harmful organisms such as wild fishes and shrimp；Culture pond central bottom is equipped with sewage draining exit, and sewage draining exit is covered with 80 mesh Buddhist nuns
Imperial mesh belt, not only prevents swimming crab from escaping, more the escape in order to reduce later period culture oppossum shrimp；And the Waterwheel-type for being equipped with 1 kilowatt increases
Two, oxygen machine, two waterwheel aerators arrange that position is in diagonal line total length along any one diagonal line of culture pond
One third and 2/3rds at, aerator diagonal line place, except oxygenation effect in addition to, moreover it is possible to make the living bait and chaff in pond
The shrimp young is uniformly distributed with water body flow.
(2) seed is launched: annual May launches Portunus trituberculatus Miers seedling to culture pond, and Portunus trituberculatus Miers seedling injected volume is every
Mu 2000；August part launches japonicus seedling, and japonicus seedling injected volume is 10,000 tail per acre；September part is inoculated with the new oppossum shrimp in east
(September 18 and 25 day carries out oppossum shrimp inoculation in two times), inoculum density are 0.5kg/ mus of meter Shui Ti；Before the new oppossum shrimp in east supports inoculation
5 days, water regulating agent (commercially available) and probiotics (commercially available, Nong Shengle aquatic products em bacterium) are launched to culture pond, water regulating agent injected volume is
0.5kg/ mus, probiotics injected volume is 0.2kg/ mus.
The inoculation new oppossum shrimp in east is mainly derived from test site main discharge outlet bank sea area and a neighbouring fish culture cage, because of these
Local bait is abundant, and oppossum shrimp is liked being gathered in this more, is easy to catch.It is traped at dusk using the lighting of oppossum shrimp phototaxis, using 60 mesh
Dredger collect, band water inflation transport.Reduce haulage time and traffic density as far as possible, prevent temperature in transportational process, salinity and
The acute variation of dissolved oxygen.After oppossum shrimp selects uptake, oppossum shrimp to enter water when being inoculated with, mild agitation water body scatters rapidly conducive to oppossum shrimp.
It is inoculated with 2 times altogether.2 days after inoculation, maked an inspection tour at dusk with flashlight along pond side, the light it can be found that the new oppossum shrimp cluster in east becomes, explanation
Inoculation has succeeded.
(3) management is fed:
Portunus trituberculatus Miers feeds mode are as follows: is fed that (weight is matched using the mixture of wild fishes and artifical compound feed
Than for wild fishes: artifical compound feed=7:3.), it respectively feeds sooner or later once, putting seedling to each feeding volume in July is Portunus trituberculatus Miers
The 8% of total weight, each feeding volume in 8~October are the 10% of Portunus trituberculatus Miers total weight, and each feeding volume is three wart shuttles from November
The 3% of sub- crab total weight, until water temperature is fed lower than 8 DEG C of stoppings；
During the new oppossum shrimp cultivation in east, Penaeus Vannmei artifical compound feed (commercially available) was launched to culture pond every 5 days, is adjusted
Water is precious and probiotics, Penaeus Vannmei artifical compound feed injected volume are 1kg/ mus, and water regulating agent injected volume is 0.5kg/ mus, prebiotic
Bacterium injected volume is 0.2kg/ mus.Before Penaeus Vannmei artifical compound feed is launched, impregnate 2 hours in advance, then with 80 mesh mesh belts
Rub with the hands it is broken after again the full pool uniformly splash.
In harvesting in January next year, the new oppossum shrimp in east starts harvest from November 15 current year and feeds cuttlefish Portunus trituberculatus Miers, holds
Continuous harvest is until Portunus trituberculatus Miers all complete by capture, generally before Portunus trituberculatus Miers is arrested, it is necessary to by japonicus
First catch.It generally at the beginning of 1 month, is captured using cage, receives net daily and put net, until catching light.
Same day average temperature >=27 DEG C during cultivation, it is primary to change water daily, changes water mode, each bottom discharge using bottom
30~50cm height water layer；Same day average temperature < 27 DEG C, it is primary to change water every 2~3 days, changes water mode, each bottom using bottom
Portion drains 10~30cm height water layer.After encountering typhoon or heavy rain, new water is replenished in time, prevents salinity altercation excessive.Periodically
The pool is patrolled at dusk, observes the quantity and changing features of oppossum shrimp group.
Embodiment 2:
A kind of high-density breeding method of the new oppossum shrimp in east in Portunus trituberculatus Miers culture pond, includes the following steps:
(1) preparation of culture pond: being raised together using Portunus trituberculatus Miers culture pond, will before Portunus trituberculatus Miers breeding
Pool water drains and continues exposure after rinsing dredging with giant；Culture pond water inlet 80cm before cultivating, with the bleaching powder of 120ppm
Disinfection, and four wall of culture pond disinfection of splashing, disinfection to culture pond inject fresh seawater to 2 meters of the depth of water after completing, the salt of culture pond
Degree control is in 26.5-27.5 ‰.The substrate of culture pond is argillo arenaceous soil, and four wall of culture pond is cement slope protection, and culture pond is rectangular
Shape, quadrangle are arc-shaped, and 5 mu of culture pond area, the pool is 2.5 meters deep, and the slope ratio on the pool ridge is 1:1.5, and water inlet installs the sieve of 200 mesh
Beautiful net stops the entrance of the harmful organisms such as wild fishes and shrimp；Culture pond central bottom is equipped with sewage draining exit, and sewage draining exit is covered with 80 mesh
Nylon wire band, not only prevents swimming crab from escaping, more the escape in order to reduce later period culture oppossum shrimp；And the Waterwheel-type of 1 kilowatt of outfit
Two, aerator, two waterwheel aerators arrange that position is in diagonal line overall length along any one diagonal line of culture pond
At the one third of degree and 2/3rds, aerator diagonal line is placed, in addition to oxygenation effect, moreover it is possible to make living bait in pond and
Mysis is uniformly distributed with water body flow.
(2) seed is launched: annual May launches Portunus trituberculatus Miers seedling to culture pond, and Portunus trituberculatus Miers seedling injected volume is every
Mu 3500；August part launches japonicus seedling, and japonicus seedling injected volume is 1.2 ten thousand tail per acre；September part is inoculated with the new chaff in east
Shrimp (September 18 and 25 day carries out oppossum shrimp inoculation in two times), inoculum density are 1kg/ mus of meter Shui Ti；Before the new oppossum shrimp in east supports inoculation
7 days, water regulating agent (commercially available) and probiotics (commercially available, Nong Shengle aquatic products em bacterium) are launched to culture pond, water regulating agent injected volume is 1kg/
Mu, probiotics injected volume are 0.5kg/ mus.
The inoculation new oppossum shrimp in east is mainly derived from test site main discharge outlet bank sea area and a neighbouring fish culture cage, because of these
Local bait is abundant, and oppossum shrimp is liked being gathered in this more, is easy to catch.It is traped at dusk using the lighting of oppossum shrimp phototaxis, using 60 mesh
Dredger collect, band water inflation transport.Reduce haulage time and traffic density as far as possible, prevent temperature in transportational process, salinity and
The acute variation of dissolved oxygen.After oppossum shrimp selects uptake, oppossum shrimp to enter water when being inoculated with, mild agitation water body scatters rapidly conducive to oppossum shrimp.
It is inoculated with 2 times altogether.2 days after inoculation, maked an inspection tour at dusk with flashlight along pond side, the light it can be found that the new oppossum shrimp cluster in east becomes, explanation
Inoculation has succeeded.
(3) management is fed:
Portunus trituberculatus Miers feeds mode are as follows: is fed that (weight is matched using the mixture of wild fishes and artifical compound feed
Than for wild fishes: artifical compound feed=8:2.), it respectively feeds sooner or later once, putting seedling to each feeding volume in July is Portunus trituberculatus Miers
The 10% of total weight, each feeding volume in 8~October are the 15% of Portunus trituberculatus Miers total weight, and each feeding volume is three wart shuttles from November
The 5% of sub- crab total weight, until water temperature is fed lower than 8 DEG C of stoppings；
During the new oppossum shrimp cultivation in east, Penaeus Vannmei artifical compound feed (commercially available) was launched to culture pond every 7 days, is adjusted
Water is precious and probiotics, Penaeus Vannmei artifical compound feed injected volume are 1.5kg/ mus, and water regulating agent injected volume is 1kg/ mus, prebiotic
Bacterium injected volume is 0.5kg/ mus.Before Penaeus Vannmei artifical compound feed is launched, impregnate 3 hours in advance, then with 100 mesh mesh belts
Rub with the hands it is broken after again the full pool uniformly splash.After encountering typhoon or heavy rain, new water is replenished in time, prevents salinity altercation excessive.Periodically it is close to
Evening patrols the pool, observes the quantity and changing features of oppossum shrimp group.
In harvesting in January next year, the new oppossum shrimp in east starts harvest from November 15 current year and feeds cuttlefish Portunus trituberculatus Miers, holds
Continuous harvest is until Portunus trituberculatus Miers all complete by capture, generally before Portunus trituberculatus Miers is arrested, it is necessary to by japonicus
First catch.It generally at the beginning of 1 month, is captured using cage, receives net daily and put net, until catching light.
Same day average temperature >=27 DEG C during cultivation, it is primary to change water daily, changes water mode, each bottom discharge using bottom
30~50cm height water layer；Same day average temperature < 27 DEG C, it is primary to change water every 2~3 days, changes water mode, each bottom using bottom
Portion drains 10~30cm height water layer.After encountering typhoon or heavy rain, new water is replenished in time, prevents salinity altercation excessive.Periodically
The pool is patrolled at dusk, observes the quantity and changing features of oppossum shrimp group.
Embodiment 3:
A kind of high-density breeding method of the new oppossum shrimp in east in Portunus trituberculatus Miers culture pond, includes the following steps:
(1) preparation of culture pond: being raised together using Portunus trituberculatus Miers culture pond, will before Portunus trituberculatus Miers breeding
Pool water drains and continues exposure after rinsing dredging with giant；Culture pond water inlet 60cm before cultivating, with the bleaching powder of 100ppm
Disinfection, and four wall of culture pond disinfection of splashing, disinfection to culture pond inject fresh seawater to 2 meters of the depth of water after completing, the salt of culture pond
Degree control is in 26.5-27.5 ‰.The substrate of culture pond is argillo arenaceous soil, and four wall of culture pond is cement slope protection, and culture pond is rectangular
Shape, quadrangle are arc-shaped, and 5 mu of culture pond area, the pool is 2.5 meters deep, and the slope ratio on the pool ridge is 1:1.5, and water inlet installs the sieve of 200 mesh
Beautiful net stops the entrance of the harmful organisms such as wild fishes and shrimp；Culture pond central bottom is equipped with sewage draining exit, and sewage draining exit is covered with 80 mesh
Nylon wire band, not only prevents swimming crab from escaping, more the escape in order to reduce later period culture oppossum shrimp；And the Waterwheel-type of 1 kilowatt of outfit
Two, aerator, two waterwheel aerators arrange that position is in diagonal line overall length along any one diagonal line of culture pond
At the one third of degree and 2/3rds, aerator diagonal line is placed, in addition to oxygenation effect, moreover it is possible to make living bait in pond and
Mysis is uniformly distributed with water body flow.
(2) seed is launched: annual May launches Portunus trituberculatus Miers seedling to culture pond, and Portunus trituberculatus Miers seedling injected volume is every
Mu 3000；August part launches japonicus seedling, and japonicus seedling injected volume is 10,000 tail per acre；September part is inoculated with the new oppossum shrimp in east
(September 18 and 25 day carries out oppossum shrimp inoculation in two times), inoculum density are 0.8kg/ mus of meter Shui Ti；Before the new oppossum shrimp in east supports inoculation
6 days, water regulating agent (commercially available) and probiotics (commercially available, Nong Shengle aquatic products em bacterium) are launched to culture pond, water regulating agent injected volume is
0.8kg/ mus, probiotics injected volume is 0.3kg/ mus.
The inoculation new oppossum shrimp in east is mainly derived from test site main discharge outlet bank sea area and a neighbouring fish culture cage, because of these
Local bait is abundant, and oppossum shrimp is liked being gathered in this more, is easy to catch.It is traped at dusk using the lighting of oppossum shrimp phototaxis, using 60 mesh
Dredger collect, band water inflation transport.Reduce haulage time and traffic density as far as possible, prevent temperature in transportational process, salinity and
The acute variation of dissolved oxygen.After oppossum shrimp selects uptake, oppossum shrimp to enter water when being inoculated with, mild agitation water body scatters rapidly conducive to oppossum shrimp.
It is inoculated with 2 times altogether.2 days after inoculation, maked an inspection tour at dusk with flashlight along pond side, the light it can be found that the new oppossum shrimp cluster in east becomes, explanation
Inoculation has succeeded.
(3) management is fed:
Portunus trituberculatus Miers feeds mode are as follows: is fed that (weight is matched using the mixture of wild fishes and artifical compound feed
Than for wild fishes: artifical compound feed=7:3), respectively feed sooner or later primary, putting seedling to each feeding volume in July is that Portunus trituberculatus Miers is total
The 10% of weight, each feeding volume in 8~October are the 15% of Portunus trituberculatus Miers total weight, and each feeding volume is three wart shuttles from November
The 5% of crab total weight, until water temperature is fed lower than 8 DEG C of stoppings；
During the new oppossum shrimp cultivation in east, Penaeus Vannmei artifical compound feed (commercially available) was launched to culture pond every 6 days, is adjusted
Water is precious and probiotics, Penaeus Vannmei artifical compound feed injected volume are 1.2kg/ mus, and water regulating agent injected volume is 0.7kg/ mus, benefit
Raw bacterium injected volume is 0.3kg/ mus.Before Penaeus Vannmei artifical compound feed is launched, impregnate 2.5 hours in advance, then with 100 mesh
The full pool is uniformly splashed again after mesh belt stranding is broken.After encountering typhoon or heavy rain, new water is replenished in time, prevents salinity altercation excessive.It is fixed
Phase patrols the pool at dusk, observes the quantity and changing features of oppossum shrimp group.
In harvesting in January next year, the new oppossum shrimp in east starts harvest from November 15 current year and feeds cuttlefish Portunus trituberculatus Miers, holds
Continuous harvest is until Portunus trituberculatus Miers all complete by capture, generally before Portunus trituberculatus Miers is arrested, it is necessary to by japonicus
First catch.It generally at the beginning of 1 month, is captured using cage, receives net daily and put net, until catching light.
Same day average temperature >=27 DEG C during cultivation, it is primary to change water daily, changes water mode, each bottom discharge using bottom
30~50cm height water layer；Same day average temperature < 27 DEG C, it is primary to change water every 2~3 days, changes water mode, each bottom using bottom
Portion drains 10~30cm height water layer.After encountering typhoon or heavy rain, new water is replenished in time, prevents salinity altercation excessive.Periodically
The pool is patrolled at dusk, observes the quantity and changing features of oppossum shrimp group.
In May, 2015 in January, 2016 dodges test site Portunus trituberculatus Miers culture pond in Zhejiang Prov. Inst. of Marine Products west
Middle progress.Culture effect highly significant, for the new oppossum shrimp density in east up to 13 tails/L, 3 culture ponds catch more than 900 jin altogether, meet
The demands of ingesting of 150,000 Sepiella maindroni young.In compared with non-seeded oppossum shrimp culture pond, Portunus trituberculatus Miers and day
This prawn yield is very nearly the same, and respectively Portunus trituberculatus Miers 50kg/ mus or so, 20kg/ mus of japonicus or so, inoculation east is new
Oppossum shrimp culture pond economic benefit highly significant.The new oppossum shrimp in east, which feeds, at least can be improved Sepiella maindroni young survival rate
50% or more.
Above-mentioned embodiment is only a preferred solution of the present invention, not the present invention is made in any form
Limitation, there are also other variations and modifications on the premise of not exceeding the technical scheme recorded in the claims.
Claims (9)
1. a kind of high-density breeding method of new oppossum shrimp in east in Portunus trituberculatus Miers culture pond, which is characterized in that including as follows
Step:
(1) preparation of culture pond: being raised together using Portunus trituberculatus Miers culture pond, before Portunus trituberculatus Miers breeding, Jiang Tangshui
It drains and continues exposure after rinsing dredging with giant；50~80cm of culture pond water inlet before cultivating, with the drift of 80~120ppm
White powder disinfection, and four wall of culture pond disinfection of splashing, to culture pond injection fresh seawater to 1.5~2 meters of the depth of water after disinfection completion；
(2) seed is launched: annual May launches Portunus trituberculatus Miers seedling to culture pond, and Portunus trituberculatus Miers seedling injected volume is per acre
2000~3500；August part launches japonicus seedling, and japonicus seedling injected volume is 10,000~1.2 ten thousand tail per acre；The inoculation of September part
The new oppossum shrimp in east, inoculum density are 0.5~1kg/ mus of meter Shui Ti；
(3) management is fed:
Portunus trituberculatus Miers feeds mode are as follows: is fed using the mixture of wild fishes and artifical compound feed, is respectively fed sooner or later
Once, seedling is put to 8~10% that daily feeding volume in July is Portunus trituberculatus Miers total weight, and daily feeding volume in 8~October is three wart shuttles
The 10~15% of sub- crab total weight, daily feeding volume is the 3~5% of Portunus trituberculatus Miers total weight from November, until water temperature is lower than 8 DEG C
Stopping is fed；
During the new oppossum shrimp cultivation of east, every 5~7 days to culture pond launch Penaeus Vannmei artifical compound feed, water regulating agent and
Probiotics, Penaeus Vannmei artifical compound feed injected volume are 1~1.5kg/ mus, and water regulating agent injected volume is 0.5~1kg/ mus, benefit
Raw bacterium injected volume is 0.2~0.5kg/ mus.
2. high-density breeding method according to claim 1, which is characterized in that the substrate of culture pond is argillo arenaceous soil, is supported
Growing four wall of the pool is cement slope protection, culture pond be it is rectangular, quadrangle is arc-shaped, 5 mu of culture pond area, deep 2~2.5 meters of the pool, water inlet
The sieve Juan net of mouth 150~200 mesh of installation, culture pond central bottom are equipped with sewage draining exit, and sewage draining exit is covered with 80 mesh nylon wire bands, and matches
Waterwheel aerator two of standby 1 kilowatt.
3. high-density breeding method according to claim 2, which is characterized in that two waterwheel aerators are along culture pond
Any one diagonal line arrangement, position is at the one third of diagonal line total length and 2/3rds.
4. high-density breeding method according to claim 1 or 2, which is characterized in that Portunus trituberculatus Miers is from January next year
It catches, the new oppossum shrimp in east started to harvest nursing sepiella maindroni from November 15 current year, and sustained yield is until Portunus trituberculatus Miers
Until all capture is completed, japonicus arrests completion using cage before Portunus trituberculatus Miers captures.
5. high-density breeding method according to claim 1 or 2, which is characterized in that wild fishes and artifical compound feed
The weight proportion of mixture is wild fishes: artifical compound feed=7:3~8:2.
6. high-density breeding method according to claim 1 or 2, which is characterized in that same day average temperature during cultivation >=
At 27 DEG C, it is primary to change water daily, changes water mode, each 30 ~ 50cm of bottom discharge height water layer using bottom；Same day average temperature
At 27 DEG C of <, it is primary to change within 2 ~ 3 days water every time, changes water mode, each 10 ~ 30cm of bottom discharge height water layer using bottom.
7. high-density breeding method according to claim 1 or 2, which is characterized in that the new oppossum shrimp in east supports inoculation preceding 5~7
It, launches water regulating agent and probiotics to culture pond, and water regulating agent injected volume is 0.5~1kg/ mu, probiotics injected volume for 0.2~
0.5kg/ mus.
8. high-density breeding method according to claim 1 or 2, which is characterized in that the salinity of culture pond is controlled in 26.5-
27.5‰。
9. high-density breeding method according to claim 1 or 2, which is characterized in that Penaeus Vannmei artifical compound feed
Before dispensing, in advance impregnate 2~3 hours, then with 80~100 mesh mesh belts stranding it is broken after again the full pool uniformly splash.
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