CN107494377A - A kind of the artificial screening method and its screening plant of the high-quality colony of Bostrichthys sinensis - Google Patents
A kind of the artificial screening method and its screening plant of the high-quality colony of Bostrichthys sinensis Download PDFInfo
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- CN107494377A CN107494377A CN201710856182.6A CN201710856182A CN107494377A CN 107494377 A CN107494377 A CN 107494377A CN 201710856182 A CN201710856182 A CN 201710856182A CN 107494377 A CN107494377 A CN 107494377A
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- 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
- A01K61/90—Sorting, grading, counting or marking live aquatic animals, e.g. sex determination
- A01K61/95—Sorting, grading, counting or marking live aquatic animals, e.g. sex determination specially adapted for fish
Abstract
A kind of the artificial screening method and its screening plant of the high-quality colony of Bostrichthys sinensis, it is screened using freshwater aquiculture resource and device, and it includes following basic skills and step：First, the high-quality colony of initial screening：1st, the setting of screening plant；2nd, screening plant inspection, cleaning and debugging；3rd, initial screening pretreatment and shoal of fish source；4th, the initial screening of the shoal of fish；2nd, high-quality colony is selected eventually；As a result of the present invention, effectively overcome using single traits as the group directional selection mode of selection target in the presence of the defects of, it fundamentally ensure that the quality of the high-quality colony of selected Bostrichthys sinensis, so as to thoroughly solve, current artificial screening seriously lags and cultivation parent is for many generations from numerous caused germplasm degenerate problem, the present invention is applied to the screening of the high-quality colony of different growth phases consortive group of flora Bostrichthys sinensis and parent population, it is easy to be directly perceived with screening technique, installation cost is low, the selected high-quality shoal of fish has constitution strong, it is quick on the draw, against the current top stream and it is strong to food odors perception, the characteristics of speed of growth is fast.
Description
Technical field the present invention relates to the artificial screening method of the high-quality colony of a kind of Bostrichthys sinensis in culture fishery and
Its screening plant, belong to Fishery cultural technique field.
Technical background Bostrichthys sinensis (latin name Bostrychus sinensis) is under the jurisdiction of Perciformes, Eleotridae, crow
Sleeper category, it is distributed in China's southern Yellow Sea, the East Sea, the South Sea and Japan Sea.The wide warm eurysaline fishes of category, grow optimum water temperature
For 23-26 DEG C, optimal salinity 5-15, appropriate pH 7.0-8.3, shallow sea, the salty body of sea water of inner bay and river mouth are inhabited, is a kind of
Water warm shallow sea Saltwater Sea water predacious fish.Bostrichthys sinensis is nutritious, and meat flavour is delicious, and resistance to dry dew ability is strong, and premunition is strong, raw
It is long fast, it is especially suitable for pond set and supports and net cage high-density breeding, it is emerging excellent to be that a kind of fortune suitably living is found a good sale in and exported goods and earned foreign currency
Fingerling is cultivated, but so far both at home and abroad there is not yet the research report of the high-quality colony's artificial screening of Bostrichthys sinensis.
Elite germplasm is excavated with utilizing the important content for being always Aquaculture Science research.For a long time, by natural resources
Increasingly decline, artificially breeding seriously lag and cultivated parent for many generations from numerous influence, China's Bostrichthys sinensis cultivation survival rate
Go from bad to worse with specific yield, germplasm degradation phenomena has turned into the serious weight for hindering the cultivation upgrading synergy of China's Bostrichthys sinensis
Big realistic problem.Undoubtedly, efficiently carry out selecting for the high-quality parent of Bostrichthys sinensis has turned into current vast China with nurturing research
Bostrichthys sinensis cultivates one of focus of practitioner and aquaculture scholar concern, but both at home and abroad so far there is not yet Central Shanxi Plain Hua Wutang
Research report in terms of the high-quality colony's artificial screening of murrel.Artificial orientation selects the routine of system's development aquaculture object germplasm screening
Method, it is domestic and international at present to improve choice accuracy and accuracy rate based on the high complexity and low success rate of multiple target character selection
The group directional selection mode using single traits as selection target is taken mostly, and selected objective trait relates generally to body colour, growth
The single specific character such as speed, anti-adversity, the enrichment to certain element or material and production capacity, should with real aquatic products breeding
Theory with optimal synthesis production performance mutually deviates from.Therefore, establish a kind of method it is easy, it is easily operated and can intuitively from
The M8003 line method that optimal comprehensive production performance is filtered out in the alternative Bostrichthys sinensis shoal of fish just seems very urgent and important.
Research shows, in the shoal of fish of high-density breeding, often forms community characterized by " domination-subordinate " etc.
Level.Wherein, the colony being top dog often has most strong constitution and optimal synthesis production performance." the broken fish of net escapes "
It is phenomenon most commonly seen in aquatic products cage culture production.Under the conditions of high-density breeding, when aquaculture net cage occurs damaged, place
In top stream mode the shoal of fish can prolong successively net cage breakage it is orderly flee from, wherein be first away from aquaculture net cage is exactly often
The colony being top dog.At the same time, for the extremely sensitive fish of the sense of taste and tactile, supported in same net cage
In the shoal of fish grown, weight gain performance and to feed perception it is most strong also tend to be those during scrambling for food in dominate
The colony of status.Therefore, it is combined with cultured fishes " the broken fish of net escapes " characteristic and weight gain performance with to the screening of feed perception
Method, can easily help us to look for the finally selected target shoal of fish.Consortive group of flora refers to that tool experience is identical and supported
The group of individuals of the same age of environment and identical breeding way is grown, using consortive group of flora as research object, carries out high-quality colony and selects and can have
Effect is evaded to be disturbed caused by age, breeding environment and breeding way difference.In consideration of it, we are extremely clever by Bostrichthys sinensis
The quick sense of taste and tactile, and its stream and " the broken fish of net escapes " behaviors and habits are pushed up against the current, consortive group of flora is cultivated as research object using it, root
According to the actual impossibility principle of small probability event, innovatively propose and establish " the broken fish of net escapes " characteristic and weight gain performance with it is right
The high-quality mass screening method of Bostrichthys sinensis that the screening of feed perception is combined.This method is applied to consortive group of flora Bostrichthys sinensis
Have selecting for the high-quality colony of optimal comprehensive production performance in each growth phase.
The optimal comprehensive production performance of cultivation and its high-quality colony refer to：In involved consortive group of flora large sample, in constitution, predation
Sensitivity, the speed of growth and the upper comprehensive score highest colony of commodity economy value, its final selective ratio should be less than or equal to small
Probabilistic standard.
Selecting the main purpose of the high-quality colony of the comprehensive production performance of optimal cultivation is：In the fish with grouping behavior
In, the colony with the comprehensive production performance of optimal cultivation is often top dog in the consortive group of flora shoal of fish, has excellent something lost
Background is passed, parent can be bred as high-quality through taking pains to foster.
In view of described above, this method cultivates consortive group of flora as sieve using the Bostrichthys sinensis with cluster, top Flow Behavior habit
Object is selected, carries out high-quality mass screening, can effectively evade and be disturbed caused by age, breeding environment and breeding way difference.
Consortive group of flora refers to the group of individuals of the same age of the same race for undergoing identical breeding environment and identical breeding way.
Using consortive group of flora as screening object, according to the actual impossibility principle of small probability event, innovatively propose and establish
One kind utilizes " the broken fish of net escapes " characteristic and weight gain performance with screening the high-quality colony of Bostrichthys sinensis being combined to feed perception
Screening technique and its screening plant.
Statistically it is referred to as testing probability or statistical probability and the probability estimated by many experiments, is represented with P values.Specifically
For, P values represent the number percent in experimental population with a certain characteristic individual, and it is reflected in experimental population with a certain
The appearance possibility size of characteristic individual.
The objective statistical that the probability of chance event shows part of getting over is regular, and it reflects event and occurred in once testing
The size of possibility, the possibility that the big expression event of probability occurs is big, and the possibility that the small expression event of probability occurs is small, if event
The probability that A occurs is smaller, if numerical value is 0.05 or 0.01, then it is assumed that event A is unlikely to occur in once testing, and this is referred to as
Small probability it is actual can not possibly occurring principle, abbreviation small probability principle, here 5% or 1% be referred to as small probability standard.
The screening technique and its screening plant have optimal cultivation suitable for each growth phase of consortive group of flora Bostrichthys sinensis
The high-quality colony of comprehensive production performance selects.
The content of the invention in order to overcome in current Bostrichthys sinensis seed selection using single traits as selection target group directional select
The defects of selecting in the presence of mode, the present invention provide a kind of a kind of artificial screening method of the brand-new high-quality colony of Bostrichthys sinensis
And its screening plant, using fish " the broken fish of net escapes " characteristic and weight gain performance with screening the method being combined to feed perception,
Using Bostrichthys sinensis consortive group of flora large sample as screening object, filtered out in the case where pushing up stream mode with the comprehensive production performance of optimal cultivation
The high-quality colony of Bostrichthys sinensis, to realize that screening obtained Bostrichthys sinensis colony, there is optimal cultivation to integrate production performance
Purpose.
The technical solution adopted by the present invention is：
1st, the artificial screening method of the high-quality colony of a kind of Bostrichthys sinensis, it is screened using sea-farming resource and device,
It includes following basic skills and step：
(1) the high-quality colony of initial screening
The setting of (1-1) screening plant
The screening plant mainly by：Contributing region, Shou Yu areas, passageway area, Zan Yang areas and water supply dynamical system are formed, and are supplied
Pool, Shou Yu areas, Ji Zanyang areas of passageway area are linked in sequence, and each junction is in sealing state, and water supply dynamical system is with supplying water
Area is connected, and current regulating gate is provided between the contributing region and the Shou Yu areas, contributing region is tank structure, temporarily
It is pond structure to support area, and contributing region is connected by current regulating gate with Shou Yu areas, and Shou Yu areas are connected with passageway area, mistake
Road area is connected with Zan Yang areas；
Shou Yu areas dodge gate is provided with the housing in the Shou Yu areas, current regulation is installed in the housing in Shou Yu areas
Gate, fish-luring light and attracting bait box；
Passageway area dodge gate is provided with the housing in the passageway area, rack is installed with the housing in passageway area
A, rack B, rack C, rack D and rack E, escape hole is provided with each rack, one is respectively provided with each escape hole
The individual cover plate that can cover the escape hole completely, to open and close escape hole；
The inspection of (1-2) screening plant, cleaning and debugging
A, each rack installation and position are checked；
B, the escape hole size on rack and installation position and cover plate flexibility are checked；
C, attracting bait box quantity, installation position are checked and is put into bait in box；
D, fish-luring light quantity and installation position are checked；
E, water supply dynamical system is checked, it is necessary to assure current supply during screening under the stream mode of shoal of fish top；
F, current regulating gate is checked, and is closed；
G, screening plant, the clean sea water can be washed down after normal use with clean sea water by completing above-mentioned review and validate
Water quality, the NY 5052-2001 pollution-free food used in mariculture water water of The Ministry of Agriculture of the People's Republic of China, MOA 2001 editions should be met
The requirement of matter standard；
H, Shou Yu area's dodge gates and passageway area dodge gate are closed and is sealed；
I, it is to prevent that occurring Bostrichthys sinensis in screening process jumps from screening plant, it is desirable to covered temporarily with polyethylene etting
Area is supported, the size of mesh of the polyethylene etting is less than the 1/2 of Bostrichthys sinensis fish body height；
(1-3) initial screening pre-processes and shoal of fish source
A, close current regulating gate, clean sea water is poured into screening plant, contributing region, Shou Yu areas, passageway area and temporarily
Clean sea water is filled in foster area, and the water level of contributing region is higher than the water level in Zan Yang areas；
B, clean sea water：23 DEG C -26 DEG C of water temperature, salinity 5-15, pH 7.0-8.3, dissolved oxygen amount are not less than 5 mg/litres；
C, randomly select more than the same batch of tail of consortive group of flora Bostrichthys sinensis 5000 bred and cultivated with pond, it is desirable to scale and fin
Bar is perfect, it is physical strong, travelling it is active, without focus, be put into Zan Yang areas culturing pool, to avoid because of Bostrichthys sinensis
The shoal of fish is overstocked to cause fish body to abrade, and the maximum temporarily foster density of the Bostrichthys sinensis shoal of fish should be by alternative China in shoal of fish Zan Yang areas culturing pool
Depending on the specific body long size of Bostrichthys sinensis, wherein the maximum temporarily foster density of the averagely long 3-5cm of the body shoal of fish must not exceed 2000 tails/vertical
Square rice, the long 6cm-10cm of the average body maximum temporarily foster density of the shoal of fish must not exceed 1000 tails/cubic meter, the long 12cm- of average body
The maximum temporarily foster density of the 15cm shoal of fish must not exceed 500 tails/cubic meter, long more than the 20cm of the average body maximum temporarily foster density of the shoal of fish
It must not exceed 100 tails/cubic meter；
D, described randomly select must be handled with batch consortive group of flora Bostrichthys sinensis bred and cultivated with pond through stopping eating, place of stopping eating
It is 1-3 days to manage the time, is defined by draining excrement in fish body；
E, primary election is operated in night progress, to keep primary election place quiet, not by external interference, if must enter on daytime
OK, then answer sunshade and control the light in work-yard, the alternative consortive group of flora Bostrichthys sinensis shoal of fish is kept relatively quiet, it is indoor
Illumination is controlled within 500 luxs；
The initial screening of (1-4) shoal of fish
A, the Bostrichthys sinensis shoal of fish is put into Zan Yang areas and is allowed to after keeping quite, and progressively opens current regulating gate, and
Water velocity is slowly improved, big minor adjustment water velocity is opened and closed by current regulating gate, makes to be put into the China crow in Zan Yang areas
The sleeper shoal of fish is in pushing up stream mode after of short duration adaptation；
Water (flow) direction is：Contributing region → Shou Yu areas → passageway area → Zan Yang areas；
Swimming direction is when the Bostrichthys sinensis shoal of fish is screened：Zan Yang areas → passageway area → Shou Yu areas；
Contributing region water level should be consistently higher than Zan Yang areas water level, and water velocity during screening is to screen the China in Qian Zanyang areas
Bostrichthys sinensis is in top stream mode and is defined, and when all individuals of the Bostrichthys sinensis shoal of fish keep top stream mode, no longer improves water
Flow velocity degree；
B, after the Bostrichthys sinensis shoal of fish adapts to top stream 30 minutes, the fish-luring light for trapping the shoal of fish is opened in Shou Yu areas,
The intensity of light control of the fish-luring light hangs in the lux of 1500 lux -2500, fish-luring light and attracting bait box and receives fish
In area；
C, after fish-luring light is opened 30 minutes, and after confirming that bait breath has diffused to Zan Yang areas, open on all escape holes
Cover plate, making each escape hole, be in can prevailing state；
D, when the Bostrichthys sinensis mantissa for entering Shou Yu areas reaches the 5% of alternative shoal of fish total amount, on closure escape hole
Cover plate, current regulating gate is closed, terminate primary election work, collect the Bostrichthys sinensis into Shou Yu areas, complete the primary dcreening operation of the shoal of fish
Choosing, this 5% Bostrichthys sinensis mantissa are the high-quality Population that primary dcreening operation is elected, i.e., primary election rate is 5%；
(2) high-quality colony is selected eventually
On the basis of the high-quality colony of initial screening, i.e., on the basis of the shoal of fish of primary dcreening operation rate 5%, primary dcreening operation is elected into high-quality group
The shoal of fish individual of body is weighed one by one, by the descending number sorting one by one of whose body weight, and before body weight is sorted 5% the shoal of fish
Body is defined as selecting high-quality colony eventually, i.e., it is 5% individual in the high-quality colony of initial screening to select object eventually, and it is 0.25% to select rate eventually.
2nd, the screening technique is applied to the high-quality group of different growth phases consortive group of flora Bostrichthys sinensis with the screening plant
The screening of body.
3rd, the screening technique is applied to the screening of high-quality parent population with the screening plant.
4th, the screening technique can adjust the choice accuracy of the high-quality colony of consortive group of flora Bostrichthys sinensis, as improve selection essence
Degree, primary election rate is adjusted to 1%-5% by 5% described in screening technique, and the end selects rate to be adjusted by 0.25% to 0.01%-
0.25%, to reduce choice accuracy, primary election rate is adjusted to 5%-10% by 5%, selects rate to be adjusted by 0.25% to 0.25%- eventually
1%.
5th, the screening technique can adjust the choice accuracy of high-quality parent population, as improve choice accuracy, described in screening technique
Primary election rate is adjusted to 1%-5% by 5%, and the end selects rate to be adjusted by 0.25% to 0.01%-0.25%, to reduce selection essence
Degree, primary election rate are adjusted to 5%-10% by 5%, select rate to be adjusted by 0.25% to 0.25%-1% eventually.
6th, when the screening plant size is limited by work-yard, then it should ensure that shoal of fish Zan Yang areas by described maximum temporarily foster close
Degree once at least accommodates 500 tail Bostrichthys sinensis, and by making more set screening plants, is allowed to accommodate alternative Bostrichthys sinensis
The total amount of group is at least up to 5000 tails or more, is screened simultaneously with realizing, disposable to complete screening operation and ensure that primary election is reliable
Property.
7th, the screening plant of the high-quality colony of a kind of Bostrichthys sinensis, the screening plant mainly by：Contributing region, Shou Yu areas,
Passageway area, Zan Yang areas and water supply dynamical system are formed, and contributing region, Shou Yu areas, Ji Zanyang areas of passageway area are linked in sequence, described each
Junction is in sealing state, and water supply dynamical system is connected with contributing region, is set between the contributing region and the Shou Yu areas
Have a current regulating gate, contributing region is tank structure, and Zan Yang areas are pond structure, contributing region by current regulating gate with
Shou Yu areas are connected, and Shou Yu areas are connected with passageway area, and passageway area is connected with Zan Yang areas；
The housing in the Shou Yu areas is made by transparent material, rectangular channel-type structure, on the housing in Shou Yu areas
Shou Yu areas dodge gate is provided with, Shou Yu areas dodge gate is in when closed sealing structure, is provided with the housing in Shou Yu areas
Current regulating gate, fish-luring light and attracting bait box；
The fish-luring light is adjustable light quality and the watertight light fitting for trapping the shoal of fish of brightness, and its installation position is adjustable；
The attracting bait box is the hollow out plastic casing for launching special bait, and its installation position is adjustable；
The housing in the passageway area is made by transparent material, rectangular channel-type structure, on the housing in passageway area
Passageway area dodge gate is provided with, passageway area dodge gate is in when closed sealing structure, the fixed peace in the housing in passageway area
15 times of maximum specification length of fish body are should be greater than equipped with rack A, rack B, rack C, rack D and rack E, the passageway section length
More than, the rack adjacent spacing should be greater than more than 3 times of maximum specification length of fish body, the rack A, rack B, rack C, net
Frame D and rack E rectangular configuration and area and Cross-Section Rectangular structure in passageway area housing are identical with area；
The rack A is made up of framework and mesh sheet, and 1 escape hole is provided with the mesh sheet；
The rack B is made up of framework and mesh sheet, and 1 escape hole is provided with the mesh sheet；
The rack C is made up of framework and mesh sheet, and 1 escape hole is provided with the mesh sheet；
The rack D is made up of framework and mesh sheet, and 1 escape hole is provided with the mesh sheet；
The rack E is made up of framework and mesh sheet, and 1 escape hole is provided with the mesh sheet；
The mesh sheet is polyethylene mesh sheet, and its size of mesh is the high 1/9-1/5 of Bostrichthys sinensis fish body body, the mesh sheet
On each escape hole shift to install at random mutually, it is described escape hole be only capable of accommodate 1 tail maximum specification Bostrichthys sinensis pass through it is described
Escape hole is respectively positioned in water, a cover plate that can cover the escape hole completely is respectively provided with each escape hole, to open and close
Escape hole.
8th, the line of centres in escape hole is not parallel with the longitudinal centre line in passageway area on the adjacent rack.
The beneficial effects of the invention are as follows：
After artificial screening method and its screening plant as a result of a kind of high-quality colony of Bostrichthys sinensis of the present invention,
Effectively overcome using single traits as the group directional selection mode of selection target in the presence of the defects of, fundamentally ensure that institute
Selecting the quality of the high-quality colony of Bostrichthys sinensis, i.e. selected Bostrichthys sinensis colony has optimal cultivation synthesis production performance,
So as to thoroughly solve, current artificial screening seriously lags and cultivation parent is for many generations from numerous caused germplasm degenerate problem.This hair
The bright screening suitable for the high-quality colony of different growth phases consortive group of flora Bostrichthys sinensis, a kind of Bostrichthys sinensis of the invention are high-quality
The artificial screening method and its screening plant of colony, this screening technique is easy intuitively, installation cost is low, and the selected high-quality shoal of fish has
Constitution is strong, be quick on the draw, top was flowed and to the characteristics of food perception is strong, the speed of growth is fast against the current.
The above-mentioned high-quality colony of target obtained through artificial screening, by reinforced cultivating, cultivated as the excellent of high quality
Matter breeds parent population.
Brief description of the drawings
Fig. 1：It is a kind of three-dimensional structure diagram of the screening plant of the high-quality colony of Bostrichthys sinensis of the embodiment of the present invention one；
Fig. 2：It is Fig. 1 main structure figure；
Fig. 3：It is Fig. 1 overlooking structure figure；
Fig. 4：It is Fig. 2 A-A sectional structure charts；
Fig. 5：It is Fig. 3 B-B sectional structure charts；
Fig. 6：A kind of screening plant rack A structure charts of the high-quality colony of Bostrichthys sinensis of the present invention；
Fig. 7：A kind of screening plant rack B structure figure of the high-quality colony of Bostrichthys sinensis of the present invention；
Fig. 8：A kind of screening plant rack C-structure figure of the high-quality colony of Bostrichthys sinensis of the present invention；
Fig. 9：A kind of screening plant rack D structure charts of the high-quality colony of Bostrichthys sinensis of the present invention；
Figure 10：A kind of screening plant rack E structure charts of the high-quality colony of Bostrichthys sinensis of the present invention；
Figure 11：It is a kind of main structure figure of the screening plant of the high-quality colony of Bostrichthys sinensis of the embodiment of the present invention two；
Figure 12：It is Figure 11 overlooking structure figure.
In Fig. 1：1st, contributing region 2, Shou Yu areas 3, passageway area 4, Zan Yang areas 5, water supply dynamical system 6, current regulator
Door 7, Shou Yu areas dodge gate 8, fish-luring light 9, attracting bait box 10, passageway area dodge gate 11, rack A 12, rack B 13,
Rack C 14, rack D 15, rack E
In Fig. 2：1st, contributing region 2, Shou Yu areas 3, passageway area 4, Zan Yang areas 6, current regulating gate
In Fig. 3：1st, contributing region 2, Shou Yu areas 3, passageway area 4, Zan Yang areas 5, water supply dynamical system 6, current regulator
Door 7, Shou Yu areas dodge gate 10, passageway area dodge gate
In Fig. 4,5：1st, contributing region 2, Shou Yu areas 3, passageway area 4, Zan Yang areas 6, current regulating gate 8, fish-luring light
9th, attracting bait box 11, rack A 12, rack B 13, rack C 14, rack D 15, rack E
In Fig. 6：11st, rack A 11a, framework 11b, mesh sheet 11c, escape hole
In Fig. 7：12nd, rack B 12a, framework 12b, mesh sheet 12c, escape hole
In Fig. 8：13rd, rack C 13a, framework 13b, mesh sheet 13c, escape hole
In Fig. 9：14th, rack D 14a, framework 14b, mesh sheet 14c, escape hole
In Figure 10：15th, rack E 15a, framework 15b, mesh sheet 15c, escape hole
In Figure 11：1st, contributing region 2, Shou Yu areas 3, passageway area 4, Zan Yang areas 16, valve 17, pipeline
In Figure 12：1st, contributing region 2, Shou Yu areas 3, passageway area 4, Zan Yang areas 5, water supply dynamical system 7, Shou Yu areas live
Dynamic door 10, passageway area dodge gate 16, valve 17, pipeline
Embodiment
High-quality colony of the present invention refers to that using the consortive group of flora large sample shoal of fish as screening object, i.e. consortive group of flora shoal of fish individual is total
Amount must be more than 5000 tails, the shoal of fish then obtained by the screening technique and screening plant of the present invention after artificial screening, claim
Be to reach the target shoal of fish of small probability standard.
The target shoal of fish for reaching small probability standard is the high-quality colony of initial screening and/or whole screening high-quality colony, is reached
The target number of fish school to small probability standard is the 1%-10% of the selected large sample number of fish school, the i.e. high-quality Population of initial screening
For 1% one the 10% of the consortive group of flora large sample number of fish school, referred to as primary election rate；Whole screening high-quality colony is the high-quality colony of initial screening
The 1%-10% of quantity, it is referred to as to select rate eventually；If without particular/special requirement, the two 5% is advisable with taking, i.e., is preferred with 5%.
Embodiment one
As Figure 1-10 shows
A kind of artificial screening method of the high-quality colony of Bostrichthys sinensis, it is screened using sea-farming resource and device, it
Including following basic skills and step：
The high-quality colony of initial screening
The setting of screening plant
The screening plant mainly by：5 contributing region 1, Shou Yu areas 2, passageway area 3, Zan Yang areas 4 and water supply dynamical system groups
Into contributing region 1, Shou Yu areas 2, Ji Zanyang areas 4 of passageway area 3 are linked in sequence, and each junction is in sealing state, water supply dynamical system
System 5 is connected with contributing region 1, and current regulating gate 6, contributing region 1 are provided between the contributing region 1 and the Shou Yu areas 2
For tank structure, Zan Yang areas 4 are pond structure, and contributing region 1 is connected by current regulating gate 6 with Shou Yu areas 2, receive fish
Area 2 is connected with passageway area 3, and passageway area 3 is connected with Zan Yang areas 4；
Shou Yu areas dodge gate 7 is provided with the housing in the Shou Yu areas 2, current are installed in the housing in Shou Yu areas 2
Regulating gate 6, fish-luring light 8 and attracting bait box 9；
Passageway area dodge gate 10 is provided with the housing in the passageway area 3, is installed with the housing in passageway area 3
Rack A11, rack B12, rack C13, rack D14 and rack E15, escape hole is provided with each rack, it is described respectively to escape
Ease is respectively provided with a cover plate that can cover the escape hole completely on hole, to open and close escape hole；
Screening plant inspection, cleaning and debugging
Check each rack installation and position；
Check the escape hole size on rack and installation position and cover plate flexibility；
Check the quantity of attracting bait box 9, installation position and be put into bait in box；
Check the quantity of fish-luring light 8 and installation position；
Check water supply dynamical system 5, it is necessary to assure current supply during screening under the stream mode of shoal of fish top；
Current regulating gate 6 is checked, and is closed；
Screening plant can be washed down after normal use with clean sea water by completing above-mentioned review and validate, the clean sea water
Water quality, the NY 5052-2001 pollution-free food used in mariculture water water quality of The Ministry of Agriculture of the People's Republic of China, MOA 2001 editions should be met
Standard requirement；
Close Shou Yu areas dodge gate 7 and passageway area dodge gate 10 and seal；
Jumped to prevent from occurring in screening process Bostrichthys sinensis from screening plant, it is desirable to covered with polyethylene etting and temporarily supported
Area 4, the size of mesh of the polyethylene etting are less than the 1/2 of Bostrichthys sinensis fish body height；
Initial screening pre-processes and shoal of fish source
Close current regulating gate 6, clean sea water poured into screening plant, contributing region 1, Shou Yu areas 2, passageway area 3 and
Clean sea water is filled in Zan Yang areas 4, and the water level of contributing region 1 is higher than the water level in Zan Yang areas 4；
Clean sea water：23 DEG C -26 DEG C of water temperature, salinity 5-15, pH 7.0-8.3, dissolved oxygen amount are not less than 5 mg/litres；
Randomly select more than the same batch of tail of consortive group of flora Bostrichthys sinensis 5000 bred and cultivated with pond, it is desirable to scale and fin ray
It is perfect, physical strong, travelling active, without focus, be put into the culturing pool of Zan Yang areas 4, to avoid because of Bostrichthys sinensis
The shoal of fish is overstocked to cause fish body to abrade, and the maximum temporarily foster density of the Bostrichthys sinensis shoal of fish should be by alternative in the culturing pool of shoal of fish Zan Yang areas 4
Depending on the specific body long size of magnificent Bostrichthys sinensis, wherein the maximum temporarily foster density of the averagely long 3-5cm of the body shoal of fish must not exceed 2000 tails/
Cubic meter, the long 6cm-10cm of the average body maximum temporarily foster density of the shoal of fish must not exceed 1000 tails/cubic meter, the long 12cm- of average body
The maximum temporarily foster density of the 15cm shoal of fish must not exceed 500 tails/cubic meter, long more than the 20cm of the average body maximum temporarily foster density of the shoal of fish
It must not exceed 100 tails/cubic meter；
Described randomly select must be handled with batch consortive group of flora Bostrichthys sinensis bred and cultivated with pond through stopping eating, processing of stopping eating
Time is 1-3 days, is defined by draining excrement in fish body；
Primary election is operated in night progress, to keep primary election place quiet, not by external interference, and if must be carried out on daytime,
Then answer sunshade and control the light in work-yard, the alternative consortive group of flora Bostrichthys sinensis shoal of fish is kept relatively quiet, room light
According to control within 500 luxs；
Lux is generally abbreviated as lx or LX, also known as meter-candle, is the unit of international units system of a mark illumination, and 1 flows
Bright luminous flux is evenly distributed on the illumination on 1 square metre of area, is exactly 1 lux.
The initial screening of the shoal of fish
The Bostrichthys sinensis shoal of fish is put into Zan Yang areas 4 and is allowed to after keeping quite, and progressively opens current regulating gate 6, and
Water velocity is slowly improved, big minor adjustment water velocity is opened and closed by current regulating gate 6, makes the China being put into Zan Yang areas 4
The Bostrichthys sinensis shoal of fish is in pushing up stream mode after of short duration adaptation；
Water (flow) direction is：2 → passageway area, 3 → Zan Yang areas of contributing region 1 → Shou Yu areas 4；
Swimming direction is when the Bostrichthys sinensis shoal of fish is screened：4 → passageway area of Zan Yang areas, 3 → Shou Yu areas 2；
The water level of contributing region 1 should be consistently higher than the water level of Zan Yang areas 4, and water velocity during screening is to screen in Qian Zanyang areas 4
Bostrichthys sinensis is in top stream mode and is defined, and when all individuals of the Bostrichthys sinensis shoal of fish keep top stream mode, no longer carries
High water velocity；
After the Bostrichthys sinensis shoal of fish adapts to top stream 30 minutes, the fish-luring light 8 for trapping the shoal of fish is opened in Shou Yu areas 2,
Intensity of light control is hung in Shou Yu areas 2 in the lux of 1500 lux -2500, fish-luring light 8 and attracting bait box 9；
After fish-luring light 8 is opened 30 minutes, and after confirming that bait breath has diffused to Zan Yang areas 4, open on all escape holes
Cover plate, making each escape hole, be in can prevailing state；
When the Bostrichthys sinensis mantissa for entering Shou Yu areas 2 reaches the 5% of alternative shoal of fish total amount, the lid on closure escape hole
Plate, current regulating gate 6 is closed, terminate primary election work, collect the Bostrichthys sinensis into Shou Yu areas 2, complete the primary dcreening operation of the shoal of fish
Choosing, this 5% Bostrichthys sinensis mantissa are the high-quality Population that primary dcreening operation is elected, i.e., primary election rate is 5%；
High-quality colony is selected eventually
On the basis of the high-quality colony of initial screening, i.e., on the basis of the shoal of fish of primary dcreening operation rate 5%, primary dcreening operation is elected into high-quality group
The shoal of fish individual of body is weighed one by one, by the descending number sorting one by one of whose body weight, and before body weight is sorted 5% the shoal of fish
Body is defined as selecting high-quality colony eventually, i.e., it is 5% individual in the high-quality colony of initial screening to select object eventually, and it is 0.25% to select rate eventually.
The screening technique is applied to the high-quality colony of different growth phases consortive group of flora Bostrichthys sinensis with the screening plant
Screening.
The screening technique is applied to the screening of high-quality parent population with the screening plant.
The screening technique can adjust the choice accuracy of the high-quality colony of consortive group of flora Bostrichthys sinensis, as improve selection essence
Degree, primary election rate is adjusted to 1%-5% by 5% described in screening technique, and the end selects rate to be adjusted by 0.25% to 0.01%-
0.25%, to reduce choice accuracy, primary election rate is adjusted to 5%-10% by 5%, selects rate to be adjusted by 0.25% to 0.25%- eventually
1%.
The screening technique can adjust the choice accuracy of high-quality parent population, as improve choice accuracy, described in screening technique just
Rate is selected to be adjusted by 5% to 1%-5%, the end selects rate to be adjusted by 0.25% to 0.01%-0.25%, to reduce choice accuracy,
Primary election rate is adjusted to 5%-10% by 5%, selects rate to be adjusted by 0.25% to 0.25%-1% eventually.
When the screening plant size is limited by work-yard, then it should ensure that shoal of fish Zan Yang areas 4 by described maximum temporarily foster close
Degree once at least accommodates 500 tail Bostrichthys sinensis, and by making more set screening plants, is allowed to accommodate alternative Bostrichthys sinensis
The total amount of group is at least up to 5000 tails or more, is screened simultaneously with realizing, disposable to complete screening operation and ensure that primary election is reliable
Property.
A kind of screening plant of the high-quality colony of Bostrichthys sinensis, the screening plant mainly by：Contributing region 1, Shou Yu areas 2,
Passageway area 3, Zan Yang areas 4 and water supply dynamical system 5 are formed, and contributing region 1, Shou Yu areas 2, the order of 3 Ji Zanyang areas of passageway area 4 connect
Connect, each junction is in sealing state, and water supply dynamical system 5 is connected with contributing region 1, in the contributing region 1 and the receipts
It is provided with current regulating gate 6 between fish area 2, contributing region 1 is tank structure, and Zan Yang areas 4 are pond structure, contributing region 1
It is connected by current regulating gate 6 with Shou Yu areas 2, Shou Yu areas 2 are connected with passageway area 3, and passageway area 3 is connected with Zan Yang areas 4
It is logical；
The housing in the Shou Yu areas 2 is made by transparent material, rectangular channel-type structure, the housing in Shou Yu areas 2
On be provided with Shou Yu areas dodge gate 7, Shou Yu areas dodge gate 7 is in when closed sealing structure, is pacified in the housing in Shou Yu areas 2
Equipped with current regulating gate 6, fish-luring light 8 and attracting bait box 9；
The fish-luring light 8 is adjustable light quality and the watertight light fitting for trapping the shoal of fish of brightness, and its installation position is adjustable；
The attracting bait box 9 is the hollow out plastic casing for launching special bait, and its installation position is adjustable；
The housing in the passageway area 3 is made by transparent material, rectangular channel-type structure, the housing in passageway area 3
On be provided with passageway area dodge gate 10, passageway area dodge gate 10 is in when closed sealing structure, in the housing in passageway area 3
It is installed with rack A11, rack B12, rack C13, rack D14 and rack E15, the length of passageway area 3 and should be greater than maximum
More than 15 times of specification length of fish body, the rack adjacent spacing should be greater than more than 3 times of maximum specification length of fish body, the net
Frame A11, rack B12, rack C13, rack D14 and rack E15 rectangular configuration and area and the housing of passageway area 3 in Cross-Section Rectangular
Structure is identical with area；
The rack A11 is made up of framework 11a and mesh sheet 11b, and 1 escape hole is provided with the mesh sheet 11b
11c；
The rack B12 is made up of framework 12a and mesh sheet 12b, and 1 escape hole is provided with the mesh sheet 12b
12c；
The rack C13 is made up of framework 13a and mesh sheet 13b, and 1 escape hole is provided with the mesh sheet 13b
13c；
The rack D14 is made up of framework 14a and mesh sheet 14b, and 1 escape hole is provided with the mesh sheet 14b
14c；
The rack E15 is made up of framework 15a and mesh sheet 15b, and 1 escape hole is provided with the mesh sheet 15b
15c；
The mesh sheet is polyethylene mesh sheet, and its size of mesh is the high 1/9-1/5 of Bostrichthys sinensis fish body body, the mesh sheet
On each escape hole shift to install at random mutually, it is described escape hole be only capable of accommodate 1 tail maximum specification Bostrichthys sinensis pass through it is described
Escape hole is respectively positioned in water, a cover plate that can cover the escape hole completely is respectively provided with each escape hole, to open and close
Escape hole.
The line of centres in escape hole is not parallel with the longitudinal centre line in passageway area 3 on the adjacent rack.
P values are equal to 0.05 as in agricultural experiment research by the present invention according to the actual impossibility principle of small probability event
One of small probability standard, that is to say, that P values can be equal to 0.05 be considered as high-quality colony under large sample level select threshold value, i.e.,
According to selection target, superseded wherein 95% individual, the high-quality colony that remaining 5% individual is classified as primary election and/or selected eventually.
The present invention is applied to the screening of the high-quality colony of different growth phases consortive group of flora Bostrichthys sinensis, and the present invention can be according to reality
Border demand, the appropriate choice accuracy for adjusting the high-quality colony of consortive group of flora Bostrichthys sinensis, as improving choice accuracy can be by each selection
95% mortality shown in stage is adjusted to 99%, also can be as 95% mortality shown in each choice phase to reduce choice accuracy
Adjust to 90%, 95% mortality can be adjusted to 99% by as improving choice accuracy, it is on the contrary then can be by 95% mortality
Adjust to 90%.
The present invention is aided with using knot all living creatures work, against the current top stream and " the broken fish of net escapes " habit possessed by Bostrichthys sinensis
Light, bait lure the effect of drawing, and attract the high-quality strong individual of consortive group of flora of artificial culture is rapid to swim what is continuously set through screening plant
Five racks, five racks are from the close-by examples to those far off set gradually from shoal of fish Zan Yang areas, and set 1 escape on per pass rack respectively
Hole, each hole of escaping can only hold 1 tail Bostrichthys sinensis calmly by, escape hole line between adjacent net pieces not with screening plant
Horizontal longitudinal center axis is parallel, and can manual control each escape the keying in hole, and by it is preferred enter before Shou Yu areas 5%
Body is defined as the high-quality colony of primary election, bait built in Shou Yu areas 2 and attracting light fixture.
The specific preparation method of rack is：Cut and the wide contour polyethylene mesh sheet of screening plant inner section size, outer edge
It is seamless to be fixed in the screening plant shown in Fig. 1 after polyethylene rack is made in frame, the size of mesh control of selected polyethylene mesh sheet
For system in the high 1/9-1/5 of fish body body, material used in frame requires nontoxic, can be plank, plastic plate, steel, rubber slab
In one kind, being cut after fixed with surgical scissors in polyethylene rack can only hold what 1 tail fish passed through calmly, and with smooth steel ring
Fixed-type escape hole, each plug-in one of hole of escaping can cover the cover plate in escape hole completely, and cover plate is interior edge polythene net
The smooth steel ring of piece, to open and close escape hole, the line not horizontal longitudinal center axis with screening plant in each adjacent escape hole
Parallel, i.e., the line of centres in the escape hole on adjacent rack is not parallel with the rectangle longitudinal centre line in passageway area.
Collect primary election high-quality colony, weighed one by one after numbering, and it is descending sort successively, by body in the high-quality colony of primary election
The end that 5% individual is defined as finally being selected in before reordering selects high-quality colony.
Whole screening plant mainly includes：Contributing region 1, Shou Yu areas 2, passageway area 3,4 four, Zan Yang areas region, its main work(
Can be respectively：
Zan Yang areas 4：For temporarily supporting the alternative shoal of fish, to avoid causing fish body to abrade because the shoal of fish is overstocked, shoal of fish maximum is temporarily supported close
Depending on degree should be by the specific body long size of alternative Bostrichthys sinensis, wherein the maximum temporarily foster density of the averagely long 3-5cm of the body shoal of fish is not
Must be more than 2000 tails/cubic meter, the long 6cm-10cm of the average body maximum temporarily foster density of the shoal of fish must not exceed 1000 tails/cubic meter,
The long 12cm-15cm of the average body maximum temporarily foster density of the shoal of fish must not exceed 500 tails/cubic meter, long more than the 20cm of average body fish
The maximum temporarily foster density of group must not exceed 100 tails/cubic meter.
Passageway area 3：For high-quality individual primary election in the shoal of fish.The overall length requirement of passageway area is more than 15 times of length of fish body,
5 racks are fixed in the area of passageway, spacing is more than 3 times of length of fish body between rack is adjacent, and is escaped between adjacent rack
Line between hole is not parallel with the horizontal longitudinal center axis of device, and hole of each escaping during primary election is in below water level.
Shou Yu areas 2：For trapping and collecting the shoal of fish, it is provided for launching the attracting bait box of bait and adjustable in Shou Yu areas
Light quality and brightness are saved to trap the attracting light fixture of the shoal of fish, attracting bait box is hollow out plastic casing, and attracting light fixture is watertight light fitting, is engraved
The installation position of empty plastic casing and watertight light fitting is adjustable removable.
Contributing region 1：Water pump water supply system is set, for providing current and flow velocity, control, water flow velocity when regulation is selected
Degree, the porgy for selecting Qian Zanyang areas is set to be in top stream mode.
Water (flow) direction is：2 → passageway area, 3 → Zan Yang areas of contributing region 1 → Shou Yu areas 4.
Swimming direction is when the shoal of fish is screened：4 → passageway area of Zan Yang areas, 3 → Shou Yu areas 2.
Water level：In screening, the water level of contributing region 1 should be consistently higher than 4 water level of Zan Yang areas more than 20-40 centimetres.
To avoid causing fish body to abrade because the shoal of fish is overstocked, temporarily foster density should be by for the maximum of the alternative shoal of fish in shoal of fish Zan Yang areas 4
Depending on the specific body long size of alternative Bostrichthys sinensis, wherein the maximum temporarily foster density of the averagely long 3-5cm of the body shoal of fish must not exceed
2000 tails/cubic meter, the long 6cm-10cm of the average body maximum temporarily foster density of the shoal of fish must not exceed 1000 tails/cubic meter, average body
The maximum temporarily foster density of the long 12cm-15cm shoal of fish must not exceed 500 tails/cubic meter, and long more than the 20cm of the average body shoal of fish is maximum
Temporarily foster density must not exceed 100 tails/cubic meter.
Work-yard conditions permit, it should be ensured that can accommodate 5000 by above-mentioned defined maximum temporarily foster density in shoal of fish Zan Yang areas
The alternative shoal of fish more than tail, work-yard condition are limited, then also should ensure that shoal of fish Zan Yang areas 4 can be by above-mentioned defined maximum temporarily foster
Density accommodates 500 tail above Bostrichthys sinensis, and by making multiple device frames, makes the alternative shoal of fish in shoal of fish Zan Yang areas 4
Total amount reaches more than 5000 tails, with disposably complete primary election work and ensure screen reliability.Check polyethylene in screening plant
Whether the firmness of rack installation, and escape hole size meet the requirements with installation position.
Check whether hollow out plastic casing is intact, and can watertight light fitting and water pump water supply system normal operation.
Randomly selected in plant with batch breed and with healthy and strong individual 5000 tails of Bostrichthys sinensis consortive group of flora that pond is cultivated with
On, it is desirable to physical strong, scale and fin ray are perfect, move about active, disease-free and injury-free.
It is put into the shoal of fish Zan Yang areas 4 shown in Fig. 1, the alternative shoal of fish after processing of stopping eating empties internal excrement to keep away
Exempt to cause fish body to abrade because the shoal of fish is overstocked, the maximum temporarily foster density of the shoal of fish should be by the specific body of alternative Bostrichthys sinensis in Zan Yang areas 4
Depending on long size, wherein the maximum temporarily foster density of the averagely long 3-5cm of the body shoal of fish must not exceed 2000 tails/cubic meter, average body length
The maximum temporarily foster density of the 6cm-10cm shoal of fish must not exceed 1000 tails/cubic meter, and the long 12cm-15cm of the average body shoal of fish is maximum temporarily
Foster density must not exceed 500 tails/cubic meter, and average long more than the 20cm of the body maximum temporarily foster density of the shoal of fish must not exceed 100 tails/vertical
Square rice.
Embodiment two
As depicted in figs. 11-12, screening plant can also be following structure type.
The screening plant by：Contributing region 1, Shou Yu areas 2, passageway area 3, Zan Yang areas 4, water supply dynamical system 5, valve 16 and
Pipeline 17 is formed, and water supply dynamical system 5 is connected and connected with contributing region 1, and contributing region 1 is by valve 16 and pipeline 17 with receiving
Fish area 2 is connected and connected, and Shou Yu areas 2 are connected and connected with passageway area 3, and passageway area 3 is connected and connected with Zan Yang areas 4,
Each junction is in sealing state, and contributing region 1 is tank structure, and Zan Yang areas 4 are pond structure.
The housing in the Shou Yu areas 2 is made by transparent material, rectangular channel-type structure, the housing in Shou Yu areas 2
On be provided with Shou Yu areas dodge gate 7, Shou Yu areas dodge gate 7 is in when closed sealing state, is pacified in the housing in Shou Yu areas 2
Equipped with fish-luring light 8 and attracting bait box 9.
The valve 16 is used to adjust water velocity.
In the present embodiment two valve 16 act on, application method it is identical with the current regulating gate 6 in embodiment one.
It is the other structures of screening plant and screening operation method in the present embodiment two, identical with embodiment one using step.
Claims (8)
1. a kind of artificial screening method of the high-quality colony of Bostrichthys sinensis, it is screened using sea-farming resource and device, and it is special
Sign is：It includes following basic skills and step：
(1) the high-quality colony of initial screening
The setting of (1-1) screening plant
The screening plant mainly by：Contributing region (1), Shou Yu areas (2), passageway area (3), Zan Yang areas (4) and water supply dynamical system
(5) formed, contributing region (1), Shou Yu areas (2), passageway area (3) Ji Zanyang areas (4) are linked in sequence, and each junction is in sealing
State, water supply dynamical system (5) are connected with contributing region (1), are set between the contributing region (1) and the Shou Yu areas (2)
There is current regulating gate (6), contributing region (1) is tank structure, and Zan Yang areas (4) are pond structure, and contributing region (1) passes through water
Stream regulating gate (6) is connected with Shou Yu areas (2), and Shou Yu areas (2) are connected with passageway area (3), passageway area (3) and Zan Yang areas
(4) it is connected；
Shou Yu areas dodge gate (7) is provided with the housing of the Shou Yu areas (2), water is installed in the housing of Shou Yu areas (2)
Flow regulating gate (6), fish-luring light (8) and attracting bait box (9)；
Passageway area dodge gate (10) is provided with the housing of the passageway area (3), is fixedly mounted in the housing of passageway area (3)
There are rack A (11), rack B (12), rack C (13), rack D (14) and rack E (15), escape is provided with each rack
Hole, a cover plate that can cover the escape hole completely is respectively provided with each escape hole, to open and close escape hole；
The inspection of (1-2) screening plant, cleaning and debugging
A, each rack installation and position are checked；
B, the escape hole size on rack and installation position and cover plate flexibility are checked；
C, attracting bait box (9) quantity, installation position are checked and is put into bait in box；
D, fish-luring light (8) quantity and installation position are checked；
E, water supply dynamical system (5) is checked, it is necessary to assure current supply during screening under the stream mode of shoal of fish top；
F, current regulating gate (6) is checked, and is closed；
G, screening plant, the water of the clean sea water can be washed down after normal use with clean sea water by completing above-mentioned review and validate
Matter, the NY 5052-2001 pollution-free food used in mariculture water water quality marks of The Ministry of Agriculture of the People's Republic of China, MOA 2001 editions should be met
Alignment request；
H, Shou Yu area's dodge gates (7) are closed and passageway area dodge gate (10) and are sealed；
I, it is to prevent that occurring Bostrichthys sinensis in screening process jumps from screening plant, it is desirable to cover Zan Yang areas with polyethylene etting
(4), the size of mesh of the polyethylene etting is less than the 1/2 of Bostrichthys sinensis fish body height；
(1-3) initial screening pre-processes and shoal of fish source
A, current regulating gate (6) is closed, clean sea water is poured into screening plant, contributing region (1), Shou Yu areas (2), passageway area
(3) Ji Zanyang areas (4) fill clean sea water, and the water level of contributing region (1) is higher than the water level of Zan Yang areas (4)；
B, clean sea water：23 DEG C -26 DEG C of water temperature, salinity 5-15, pH7.0-8.3, dissolved oxygen amount are not less than 5 mg/litres；
C, randomly select more than the same batch of tail of consortive group of flora Bostrichthys sinensis 5000 bred and cultivated with pond, it is desirable to which scale and fin ray are complete
It is whole it is intact, physical strong, travelling active, without focus, be put into Zan Yang areas (4) culturing pool, to avoid because of Bostrichthys sinensis
The shoal of fish is overstocked to cause fish body to abrade, and the maximum temporarily foster density of the Bostrichthys sinensis shoal of fish should be by alternative in shoal of fish Zan Yang areas (4) culturing pool
Depending on the specific body long size of Bostrichthys sinensis, wherein the maximum temporarily foster density of the averagely long 3-5cm of the body shoal of fish must not exceed 2000
Tail/cubic meter, the long 6cm-10cm of the average body maximum temporarily foster density of the shoal of fish must not exceed 1000 tails/cubic meter, average body length
The maximum temporarily foster density of the 12cm-15cm shoal of fish must not exceed 500 tails/cubic meter, and long more than the 20cm of the average body shoal of fish is maximum temporarily
Foster density must not exceed 100 tails/cubic meter；
D, it is described randomly select with the consortive group of flora Bostrichthys sinensis batch bred and cultivated with pond must through processing of stopping eating, stop eating processing when
Between be 1-3 days, be defined by draining excrement in fish body；
E, primary election is operated in night progress, to keep primary election place quiet, not by external interference, and if must be carried out on daytime,
Answer sunshade and control the light in work-yard, the alternative consortive group of flora Bostrichthys sinensis shoal of fish is kept relatively quiet, indoor illumination
Control is within 500 luxs；
The initial screening of (1-4) shoal of fish
A, the Bostrichthys sinensis shoal of fish is put into Zan Yang areas (4) and is allowed to after keeping quite, and progressively opens current regulating gate (6),
And water velocity is slowly improved, big minor adjustment water velocity is opened and closed by current regulating gate (6), makes to be put into Zan Yang areas (4)
The Bostrichthys sinensis shoal of fish be in after of short duration adaptation push up stream mode；
Water (flow) direction is：Contributing region (1) → Shou Yu areas (2) → passageway area (3) → Zan Yang areas (4)；
Swimming direction is when the Bostrichthys sinensis shoal of fish is screened：Zan Yang areas (4) → passageway area (3) → Shou Yu areas (2)；
Contributing region (1) water level should be consistently higher than Zan Yang areas (4) water level, and water velocity during screening is to screen in Qian Zanyang areas (4)
Bostrichthys sinensis be in push up stream mode be defined, when the Bostrichthys sinensis shoal of fish it is all individual keep top stream mode when, no longer
Improve water velocity；
B, after the Bostrichthys sinensis shoal of fish adapts to top stream 30 minutes, the fish-luring light for trapping the shoal of fish is opened in Shou Yu areas (2)
(8), intensity of light control hangs on Shou Yu areas in the lux of 1500 lux -2500, fish-luring light (8) and attracting bait box (9)
(2) in；
C, after fish-luring light (8) is opened 30 minutes, and after confirming that bait breath has diffused to Zan Yang areas (4), all escape holes are opened
On cover plate, making each escape hole, be in can prevailing state；
D, when the Bostrichthys sinensis mantissa for entering Shou Yu areas (2) reaches the 5% of alternative shoal of fish total amount, the lid on closure escape hole
Plate, current regulating gate (6) is closed, terminate primary election work, collect the Bostrichthys sinensis into Shou Yu areas (2), complete the shoal of fish
Initial screening, this 5% Bostrichthys sinensis mantissa are the high-quality Population that primary dcreening operation is elected, i.e., primary election rate is 5%；
(2) high-quality colony is selected eventually
On the basis of the high-quality colony of initial screening, i.e., on the basis of the shoal of fish of primary dcreening operation rate 5%, primary dcreening operation is elected into high-quality colony
Shoal of fish individual is weighed one by one, by the descending number sorting one by one of whose body weight, and before body weight is sorted 5% shoal of fish individual really
It is set to and selects high-quality colony eventually, i.e., it is 5% individual in the high-quality colony of initial screening to select object eventually, and it is 0.25% to select rate eventually.
A kind of 2. artificial screening method of the high-quality colony of Bostrichthys sinensis according to claim 1, it is characterised in that：It is described
Screening technique is applied to the screening of the high-quality colony of different growth phases consortive group of flora Bostrichthys sinensis with the screening plant.
A kind of 3. artificial screening method of the high-quality colony of Bostrichthys sinensis according to claim 1, it is characterised in that：It is described
Screening technique is applied to the screening of high-quality parent population with the screening plant.
A kind of 4. artificial screening method of the high-quality colony of Bostrichthys sinensis according to claim 1 or 2, it is characterised in that：
The screening technique can adjust the choice accuracy of the high-quality colony of consortive group of flora Bostrichthys sinensis, as improve choice accuracy, screening side
Primary election rate is adjusted to 1%-5% by 5% described in method, and the end selects rate to be adjusted by 0.25% to 0.01%-0.25%, is selected to reduce
Precision is selected, primary election rate is adjusted to 5%-10% by 5%, selects rate to be adjusted by 0.25% to 0.25%-1% eventually.
A kind of 5. artificial screening method of the high-quality colony of Bostrichthys sinensis according to claim 1 or 3, it is characterised in that：
The screening technique can adjust the choice accuracy of high-quality parent population, as improve choice accuracy, primary election rate is by 5% described in screening technique
Adjust to 1%-5%, the end selects rate to be adjusted by 0.25% to 0.01%-0.25%, for reduce choice accuracy, primary election rate by
5% adjusts to 5%-10%, selects rate to be adjusted by 0.25% to 0.25%-1% eventually.
A kind of 6. artificial screening method of the high-quality colony of Bostrichthys sinensis according to claim 1, it is characterised in that：It is described
When screening plant size is limited by work-yard, then it should ensure that density is temporarily supported once at least by the maximum by shoal of fish Zan Yang areas (4)
Accommodate 500 tail Bostrichthys sinensis, and by making more set screening plants, be allowed to accommodate the total amount of the alternative Bostrichthys sinensis shoal of fish extremely
Reach 5000 tails or more less, screened simultaneously with realizing, it is disposable to complete screening operation and ensure primary election reliability.
A kind of 7. screening plant of the high-quality colony of Bostrichthys sinensis, it is characterised in that：The screening plant mainly by：Contributing region
(1), Shou Yu areas (2), passageway area (3), Zan Yang areas (4) and water supply dynamical system (5) are formed, contributing region (1), Shou Yu areas (2),
Passageway area (3) Ji Zanyang areas (4) are linked in sequence, and each junction is in sealing state, water supply dynamical system (5) and contributing region
(1) it is connected, current regulating gate (6) is provided between the contributing region (1) and the Shou Yu areas (2), contributing region (1) is
Tank structure, Zan Yang areas (4) are pond structure, and contributing region (1) is connected by current regulating gate (6) with Shou Yu areas (2)
Logical, Shou Yu areas (2) are connected with passageway area (3), and passageway area (3) are connected with Zan Yang areas (4)；
The housing of the Shou Yu areas (2) is made by transparent material, rectangular channel-type structure, the housing in Shou Yu areas (2)
On be provided with Shou Yu areas dodge gate (7), Shou Yu areas dodge gate (7) is in sealing structure when closed, the shell in Shou Yu areas (2)
Current regulating gate (6), fish-luring light (8) and attracting bait box (9) are installed in vivo；
The fish-luring light (8) is adjustable light quality and the watertight light fitting for trapping the shoal of fish of brightness, and its installation position is adjustable；
The attracting bait box (9) is the hollow out plastic casing for launching special bait, and its installation position is adjustable；
The housing of the passageway area (3) is made by transparent material, rectangular channel-type structure, the housing in passageway area (3)
On be provided with passageway area dodge gate (10), passageway area dodge gate (10) is in sealing structure when closed, in passageway area (3)
Rack A (11), rack B (12), rack C (13), rack D (14) and rack E (15), the passageway area are installed with housing
(3) length should be greater than more than 15 times of maximum specification length of fish body, and the rack adjacent spacing should be greater than maximum specification fish length
More than 3 times of degree, the rack A (11), rack B (12), rack C (13), rack D (14) and rack E (15) rectangular configuration
It is identical with area with area and Cross-Section Rectangular structure in passageway area (3) housing；
The rack A (11) is made up of framework (11a) and mesh sheet (11b), and 1 escape is provided with the mesh sheet (11b)
Hole (11c)；
The rack B (12) is made up of framework (12a) and mesh sheet (12b), and 1 escape is provided with the mesh sheet (12b)
Hole (12c)；
The rack C (13) is made up of framework (13a) and mesh sheet (13b), and 1 escape is provided with the mesh sheet (13b)
Hole (13c)；
The rack D (14) is made up of framework (14a) and mesh sheet (14b), and 1 escape is provided with the mesh sheet (14b)
Hole (14c)；
The rack E (15) is made up of framework (15a) and mesh sheet (15b), and 1 escape is provided with the mesh sheet (15b)
Hole (15c)；
The mesh sheet is polyethylene mesh sheet, and its size of mesh is the high 1/9-1/5 of Bostrichthys sinensis fish body body, in the mesh sheet
Each escape hole shifts to install mutually at random, and the escape hole is only capable of 1 tail maximum specification Bostrichthys sinensis of receiving and passes through the escape
Hole is respectively positioned in water, a cover plate that can cover the escape hole completely is respectively provided with each escape hole, to open and close escape
Hole.
A kind of 8. screening plant of the high-quality colony of Bostrichthys sinensis according to claim 7, it is characterised in that：It is described adjacent
The line of centres in escape hole is not parallel with the longitudinal centre line of passageway area (3) on rack.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710856182.6A CN107494377A (en) | 2017-09-14 | 2017-09-14 | A kind of the artificial screening method and its screening plant of the high-quality colony of Bostrichthys sinensis |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710856182.6A CN107494377A (en) | 2017-09-14 | 2017-09-14 | A kind of the artificial screening method and its screening plant of the high-quality colony of Bostrichthys sinensis |
Publications (1)
| Publication Number | Publication Date |
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| CN107494377A true CN107494377A (en) | 2017-12-22 |
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ID=60697134
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710856182.6A Withdrawn CN107494377A (en) | 2017-09-14 | 2017-09-14 | A kind of the artificial screening method and its screening plant of the high-quality colony of Bostrichthys sinensis |
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| CN (1) | CN107494377A (en) |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201204865Y (en) * | 2008-04-17 | 2009-03-11 | 上海水产大学 | Endless track for fish offspring quality quick classification |
| CN101564014A (en) * | 2008-04-21 | 2009-10-28 | 中国水产科学研究院东海水产研究所 | Method for screening and separating high-quality fry and poor-quality fry in batches |
| CN201869663U (en) * | 2010-10-20 | 2011-06-22 | 林信毅 | Fish fry screening device |
-
2017
- 2017-09-14 CN CN201710856182.6A patent/CN107494377A/en not_active Withdrawn
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201204865Y (en) * | 2008-04-17 | 2009-03-11 | 上海水产大学 | Endless track for fish offspring quality quick classification |
| CN101564014A (en) * | 2008-04-21 | 2009-10-28 | 中国水产科学研究院东海水产研究所 | Method for screening and separating high-quality fry and poor-quality fry in batches |
| CN201869663U (en) * | 2010-10-20 | 2011-06-22 | 林信毅 | Fish fry screening device |
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Application publication date: 20171222 |