CN107494380A - A kind of the artificial screening method and its screening plant of the high-quality colony of mullet - Google Patents
A kind of the artificial screening method and its screening plant of the high-quality colony of mullet Download PDFInfo
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- CN107494380A CN107494380A CN201710856648.2A CN201710856648A CN107494380A CN 107494380 A CN107494380 A CN 107494380A CN 201710856648 A CN201710856648 A CN 201710856648A CN 107494380 A CN107494380 A CN 107494380A
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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 mullet, it is screened using sea-farming 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 mullet, 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 mullet and parent population, with screening technique is easy directly perceived, installation cost is low, selected unblemished fish colony matter is strong, is quick on the draw, the characteristics of escape capability is strong, the speed of growth is fast.
Description
The present invention relates to a kind of artificial screening method of the high-quality colony of mullet and its screening in culture fishery for technical field
Device, belong to Fishery cultural technique field.
Technical background mullet (latin name Liza haematocheilus) be under the jurisdiction of Osteichthyes, Actinopterygii, Mugilidae,
Mullet category, build is larger, and property is active, be apt to jump, love connection group set out, like to inhabit in rivers mouth and bay, in adverse current often into
Group traces back trip, is distributed widely in the South Sea, the East China Sea and the Yellow Sea and the Bohai Sea in China.Mullet property is fierce and malicious and tool is aggressive, for wide warm, wide salt
Property near sea fishes, proper salinity level 0-38, suitable temperature range be 3-35 DEG C, the most suitable scope of water temperature be 12-25 DEG C, feeding habits are extremely wide, category
Ominivore-fish based on plant feed, it is the traditional aquaculture object in China.
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 mullet cultivation survival rate and unit
Yield go fromes bad to worse, and germplasm degradation phenomena has turned into the serious great realistic problem for hindering the cultivation upgrading synergy of China mullet.
Undoubtedly, efficiently carry out selecting for the high-quality parent of mullet has turned into current vast mullet cultivation practitioner and aquatic products with nurturing research
Cultivate one of focus of scholar's concern.Artificial orientation selects system to carry out the conventional method of aquaculture object germplasm screening, is based on
The high complexity and low success rate of multiple target character selection, to improve choice accuracy and accuracy rate, take mostly both at home and abroad at present
Group directional selection mode using single traits as selection target, selected objective trait relate generally to the body colour, speed of growth, degeneration-resistant
The single specific character such as performance, the enrichment to certain element or material and production capacity, should have with real aquatic products breeding optimal
The theory of synthesis production performance mutually deviate from.Therefore, it is easy, easily operated and can be intuitively from alternative mullet to establish a kind of method
The M8003 line method that optimal comprehensive production performance is filtered out in the 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, in the shoal of fish cultivated in same net cage, weight gain performance it is most strong to also tend to be that
The colony being top dog a bit during scrambling for food.Therefore, with cultured fishes " the broken fish of net escapes " characteristic and weightening property
The method being combined can be screened, can easily help us to look for the finally selected target shoal of fish.
Consortive group of flora refers to that tool undergoes the group of individuals of the same age of identical breeding environment and identical breeding way, using consortive group of flora as
Research object, carry out high-quality colony select can effectively evade caused by age, breeding environment and breeding way difference disturb.Mirror
In this, we by the resistance to dense stocking of mullet, like pushing up stream and " the broken fish of net escapes " behaviors and habits against the current, consortive group of flora is cultivated using it to study
Object, according to the actual impossibility principle of small probability event, innovatively propose and establish " the broken fish of net escapes " characteristic and weightening
The high-quality mass screening method of mullet that performance screening is combined.This method has most preferably suitable for each growth phase of consortive group of flora mullet
The high-quality colony of comprehensive production performance selects.
The optimal comprehensive production performance of cultivation and its high-quality colony refer to：In involved consortive group of flora large sample, in constitution, escape
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 screening object using the mullet with cluster, top Flow Behavior habit,
Carry 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 mass screening side of mullet being combined to feed perception
Method 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 the comprehensive life of optimal cultivation suitable for each growth phase of consortive group of flora mullet
Produce selecting for the high-quality colony of performance.
The content of the invention is in order to overcome the group directional selection mode in current mullet seed selection using single traits as selection target
In the presence of the defects of, the present invention provides the artificial screening method and its screening dress of a kind of a kind of brand-new high-quality colony of mullet
Put, the method being combined using fish " the broken fish of net escapes " characteristic and weight gain performance screening, using mullet consortive group of flora large sample as screening
Object, the high-quality colony of mullet with the comprehensive production performance of optimal cultivation is filtered out in the case where pushing up stream mode, to realize that screening is obtained
Mullet colony there is the purpose of the comprehensive production performance of optimal cultivation.
The technical solution adopted by the present invention is：
1st, the artificial screening method of the high-quality colony of a kind of mullet, it is screened using sea-farming resource and device, and 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 mullet in screening process jumps from screening plant, it is desirable to Zan Yang areas are covered with polyethylene etting,
The size of mesh of the polyethylene etting is less than the 1/2 of mullet 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：12 DEG C -25 DEG C of water temperature, salinity 10-30, pH 7.5-8.0, dissolved oxygen is more than 5 mg/litres；
C, randomly select more than the same batch of tail of consortive group of flora mullet 5000 bred and cultivated with pond, it is desirable to which scale and fin ray are complete
It is intact, physical strong, travelling active, without focus, be put into Zan Yang areas culturing pool, to avoid causing because the mullet shoal of fish is overstocked
Fish body abrades, in shoal of fish Zan Yang areas culturing pool the maximum temporarily foster density of the mullet shoal of fish should by the specific body long size of alternative mullet and
It is fixed, wherein the maximum temporarily foster density of the averagely long 3cm-5cm of the body shoal of fish must not exceed 2000 tails/cubic meter, the long 6cm- of average body
The maximum temporarily foster density of the 10cm shoal of fish must not exceed 800 tails/cubic meter, and the long 12cm-15cm of average body shoal of fish maximum is temporarily supported close
Degree must not exceed 350 tails/cubic meter, average long more than the 20cm of the body maximum temporarily foster density of the shoal of fish must not exceed 120 tails/cube
Rice；
D, described randomly select must be stopped eating processing time with batch consortive group of flora mullet for breeding and being cultivated with pond through processing of stopping eating
For 1-3 days, it 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 mullet shoal of fish is kept relatively quiet, indoor illumination control
System is within 500 luxs；
The initial screening of (1-4) shoal of fish
A, the mullet shoal of fish is put into Zan Yang areas and is allowed to after keeping quite, and progressively opens current regulating gate, and slowly carry
High water velocity, big minor adjustment water velocity is opened and closed by current regulating gate, the mullet shoal of fish for making to be put into Zan Yang areas is through short
It is in pushing up stream mode after temporarily adapting to；
Water (flow) direction is：Contributing region → Shou Yu areas → passageway area → Zan Yang areas；
Swimming direction is when the mullet 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 mullet in Qian Zanyang areas
It is in top stream mode to be defined, when all individuals of the mullet shoal of fish keep top stream mode, no longer improves water velocity；
B, after the mullet 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, it is described to lure
The intensity of light control of fish lamp is hung in Shou Yu areas in the lux of 1500 lux -2500, fish-luring light and attracting bait box；
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 mullet mantissa for entering Shou Yu areas reaches the 5% of alternative shoal of fish total amount, cover plate, pass on closure escape hole
Current regulating gate is closed, primary election work is terminated, collects the mullet into Shou Yu areas, complete the initial screening of the shoal of fish, this 5% mullet tail
The high-quality Population that number is elected for primary dcreening operation, i.e. primary election rate are 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 sieve of the high-quality colony of different growth phases consortive group of flora mullet with the screening plant
Choosing.
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 mullet, as improve choice accuracy, sieve
Primary election rate is adjusted to 1%-5% by 5% described in choosing method, and the end selects rate to be adjusted by 0.25% to 0.01%-0.25%, for drop
Low choice accuracy, primary election rate are adjusted to 5%-10% by 5%, select rate to be adjusted by 0.25% to 0.25%-1% eventually.
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 mullets, and by making more set screening plants, is allowed to accommodate the total amount of the alternative mullet shoal of fish at least
Reach 5000 tails or more, screened simultaneously with realizing, it is disposable to complete screening operation and ensure primary election reliability.
7th, the screening plant of the high-quality colony of a kind of mullet, 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, each junction
In sealing state, water supply dynamical system is connected with contributing region, and current are provided between the contributing region and the Shou Yu areas
Regulating gate, contributing region are tank structure, and Zan Yang areas are pond structure, and contributing region passes through current regulating gate and Shou Yu areas
It is connected, 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 1/6-1/4 of mullet fish body body, each in the mesh sheet
Escape hole shifts to install mutually at random, and the escape hole is only capable of accommodating 1 tail maximum specification mullet by the way that the escape hole is respectively positioned on
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 mullet of the present invention, effective gram
Clothes using single traits as the group directional selection mode of selection target in the presence of the defects of, fundamentally ensure that selected mullet
The quality of high-quality colony, i.e. selected mullet colony have optimal cultivation synthesis production performance, so as to thoroughly solve at present
Artificial screening seriously lags and cultivation parent is for many generations from numerous caused germplasm degenerate problem.The present invention is applied to different growth steps
The screening of the high-quality colony of section consortive group of flora mullet, the artificial screening method and its screening dress of the high-quality colony of a kind of mullet of the invention
Put, this screening technique is easy directly perceived, installation cost is low, the selected high-quality shoal of fish have constitution is strong, be quick on the draw, against the current top stream and
, the speed of growth fast the characteristics of strong to food odors perception.
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 mullet 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 mullet of the present invention；
Fig. 7：A kind of screening plant rack B structure figure of the high-quality colony of mullet of the present invention；
Fig. 8：A kind of screening plant rack C-structure figure of the high-quality colony of mullet of the present invention；
Fig. 9：A kind of screening plant rack D structure charts of the high-quality colony of mullet of the present invention；
Figure 10：A kind of screening plant rack E structure charts of the high-quality colony of mullet of the present invention；
Figure 11：It is a kind of main structure figure of the screening plant of the high-quality colony of mullet 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
6th, current regulating gate 7, Shou Yu areas dodge gate 8, fish-luring light 9, attracting bait box
10th, passageway area dodge gate 11, rack A 12, rack B 13, rack C
14th, rack D 15, rack E
In Fig. 2：1st, contributing region 2, Shou Yu areas 3, passageway area 4, Zan Yang areas
6th, current regulating gate
In Fig. 3：1st, contributing region 2, Shou Yu areas 3, passageway area 4, Zan Yang areas
5th, water supply dynamical system 6, current regulating gate
7th, 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
6th, current regulating gate 8, fish-luring light 9, attracting bait box
11st, rack A 12, rack B 13, rack C 14, rack D
15th, 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
16th, valve 17, pipeline
In Figure 12：1st, contributing region 2, Shou Yu areas 3, passageway area 4, Zan Yang areas
5th, water supply dynamical system 7, Shou Yu areas dodge gate 10, passageway area dodge gate
16th, 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 mullet, it is screened using sea-farming resource and device, and it is included such as
Lower 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 mullet from screening plant, it is desirable to cover Zan Yang areas 4, institute with polyethylene etting
The size of mesh for stating polyethylene etting is less than the 1/2 of mullet 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：12 DEG C -25 DEG C of water temperature, salinity 10-30, pH 7.5-8.0, dissolved oxygen is more than 5 mg/litres；
Randomly select more than the same batch of tail of consortive group of flora mullet 5000 bred and cultivated with pond, it is desirable to scale and the complete nothing of fin ray
It is scarce, physical strong, travelling active, without focus, be put into the culturing pool of Zan Yang areas 4, to avoid causing because the mullet shoal of fish is overstocked
Fish body abrades, in the culturing pool of shoal of fish Zan Yang areas 4 the maximum temporarily foster density of the mullet shoal of fish should by the specific body long size of alternative mullet and
It is fixed, wherein the maximum temporarily foster density of the averagely long 3cm-5cm of the body shoal of fish must not exceed 2000 tails/cubic meter, the long 6cm- of average body
The maximum temporarily foster density of the 10cm shoal of fish must not exceed 800 tails/cubic meter, and the long 12cm-15cm of average body shoal of fish maximum is temporarily supported close
Degree must not exceed 350 tails/cubic meter, average long more than the 20cm of the body maximum temporarily foster density of the shoal of fish must not exceed 120 tails/cube
Rice；
Described randomly select must be through processing of stopping eating with the consortive group of flora mullet for batch breeding and cultivating with pond, and processing time of stopping eating is
1-3 days, it 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 mullet shoal of fish is kept relatively quiet, indoor illumination control
Within 500 luxs；
Lux is generally abbreviated as 1x 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 mullet 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 slowly carry
High water velocity, big minor adjustment water velocity is opened and closed by current regulating gate 6, the mullet shoal of fish for making to be put into Zan Yang areas 4 passes through
It 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 mullet 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
Mullet is in top stream mode and is defined, and when all individuals of the mullet shoal of fish keep top stream mode, no longer improves water velocity；
After the mullet 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, light is strong
Degree 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 mullet mantissa for entering Shou Yu areas 2 reaches the 5% of alternative shoal of fish total amount, cover plate, pass on closure escape hole
Current regulating gate 6 is closed, primary election work is terminated, collects the mullet into Shou Yu areas 2, complete the initial screening of the shoal of fish, this 5% mullet
Mantissa is 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 screening of the high-quality colony of different growth phases consortive group of flora mullet with the screening plant.
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 mullet, as improve choice accuracy, screen
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%, to reduce
Choice accuracy, primary election rate are adjusted to 5%-10% by 5%, select rate to be adjusted by 0.25% to 0.25%-1% eventually.
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 mullets, and by making more set screening plants, is allowed to accommodate the total amount of the alternative mullet shoal of fish at least
Reach 5000 tails or more, screened simultaneously with realizing, it is disposable to complete screening operation and ensure primary election reliability.
A kind of screening plant of the high-quality colony of mullet, the screening plant mainly by：Contributing region 1, Shou Yu areas 2, passageway area
3rd, Zan Yang areas 4 and water supply dynamical system 5 are formed, and contributing region 1, Shou Yu areas 2, Ji Zanyang areas 4 of passageway area 3 are linked in sequence, described
Each junction is in sealing state, and water supply dynamical system 5 is connected with contributing region 1, the contributing region 1 and the Shou Yu areas 2 it
Between be provided with current regulating gate 6, contributing region 1 is tank structure, and Zan Yang areas 4 are pond structure, and contributing region 1 passes through current
Regulating gate 6 is connected with Shou Yu areas 2, and Shou Yu areas 2 are connected with passageway area 3, and passageway area 3 is connected with Zan Yang areas 4；
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 1/6-1/4 of mullet fish body body, each in the mesh sheet
Escape hole shifts to install mutually at random, and the escape hole is only capable of accommodating 1 tail maximum specification mullet by the way that the escape hole is respectively positioned on
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 mullet, and the present invention can be according to actual need
Ask, the appropriate choice accuracy for adjusting the high-quality colony of consortive group of flora mullet, as improving choice accuracy can be as shown in each choice phase
95% mortality is adjusted to 99%, for reduce choice accuracy can also be adjusted as 95% mortality shown in each choice phase to
90%, 95% mortality can be adjusted to 99% by as improving choice accuracy, it is on the contrary then 95% mortality can be adjusted to
90%.
The present invention is aided with light, bait using knot all living creatures work, against the current top stream and " the broken fish of net escapes " habit possessed by mullet
Material lures the effect of drawing, and attracts the high-quality strong individual of consortive group of flora of artificial culture to swim five nets continuously set through screening plant rapidly
Frame, 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 hole on per pass rack respectively, each
Escape hole can only hold 1 tail mullet calmly by, escape hole line between the adjacent net pieces not horizontal longitudinal center with screening plant
Diameter parallel, and can manual control each escape the keying in hole, and preferred before Shou Yu areas 5% individual of entering is defined as primary election
High-quality colony, 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 1/6-1/4 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 mullet, wherein the maximum temporarily foster density of the averagely long 3cm-5cm of the body shoal of fish must not surpass
2000 tails/cubic meter is crossed, the long 6cm-10cm of the average body maximum temporarily foster density of the shoal of fish must not exceed 800 tails/cubic meter, average body
The maximum temporarily foster density of the long 12cm-15cm shoal of fish must not exceed 350 tails/cubic meter, and long more than the 20cm of the average body shoal of fish is maximum
Temporarily foster density must not exceed 120 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 mullet, wherein the maximum temporarily foster density of the averagely long 3cm-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 800 tails/cubic meter, average body length
The maximum temporarily foster density of the 12cm-15cm shoal of fish must not exceed 350 tails/cubic meter, and long more than the 20cm of the average body shoal of fish is maximum temporarily
Foster density must not exceed 120 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 mullets, and by making multiple device frames, reaches the total amount of the alternative shoal of fish in shoal of fish Zan Yang areas 4
To more than 5000 tails, with disposably complete primary election work and ensure screen reliability.Check polyethylene rack peace in screening plant
Whether the firmness of dress, 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 more than same batch of mullet consortive group of flora 5000 tails of healthy and strong individual bred and cultivated with pond, it is desirable to
It is physical strong, fin ray is perfect, move about it is 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 long size of alternative mullet in Zan Yang areas 4
Depending on, wherein the maximum temporarily foster density of the averagely long 3cm-5cm of the body shoal of fish must not exceed 2000 tails/cubic meter, the long 6cm- of average body
The maximum temporarily foster density of the 10cm shoal of fish must not exceed 800 tails/cubic meter, and the long 12cm-15cm of average body shoal of fish maximum is temporarily supported close
Degree must not exceed 350 tails/cubic meter, average long more than the 20cm of the body maximum temporarily foster density of the shoal of fish must not exceed 120 tails/cube
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 mullet, it is screened using sea-farming resource and device, it is characterised in that：
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 NY5052-2001 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 in selection process the shoal of fish occur and jump from the possibility of device, it is desirable to covered with polyethylene etting whole first
Screening device, the size of mesh of etting is high less than fish body body 1/2；
(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：12 DEG C -25 DEG C of water temperature, salinity 10-30, pH7.5-8.0, dissolved oxygen is more than 5 mg/litres；
C, randomly select more than the same batch of tail of consortive group of flora mullet 5000 bred and cultivated with pond, it is desirable to scale and the complete nothing of fin ray
Lack, move about active, disease-free and injury-free, be put into Zan Yang areas (4) culturing pool, to avoid causing fish body to abrade because the shoal of fish is overstocked,
Depending on the maximum temporarily foster density of the shoal of fish should be by the specific body long size of alternative mullet in shoal of fish Zan Yang areas (4) culturing pool, wherein average
The maximum temporarily foster density of the long 3cm-5cm of the body shoal of fish must not exceed 2000 tails/cubic meter, and the long 6cm-10cm of the average body shoal of fish is maximum
Temporarily foster density must not exceed 800 tails/cubic meter, and the long 12cm-15cm of the average body maximum temporarily foster density of the shoal of fish must not exceed 350
Tail/cubic meter, long more than the 20cm of the average body maximum temporarily foster density of the shoal of fish must not exceed 120 tails/cubic meter；
D, described randomly select must be handled with batch consortive group of flora mullet for breeding and being cultivated with pond through stopping eating, and processing time of stopping eating is 1-
3 days, it 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, and if must be carried out on daytime,
Answer sunshade and control the light in work-yard, the alternative consortive group of flora mullet shoal of fish is kept relatively quiet, indoor illumination control exists
Within 500 luxs；
The initial screening of (1-4) shoal of fish
A, the 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 slowly improve
Water velocity, big minor adjustment water velocity is opened and closed by current regulating gate (6), makes the mullet shoal of fish being put into Zan Yang areas (4)
It is in pushing up stream mode after of short duration adaptation；
Water (flow) direction is：Contributing region (1) → Shou Yu areas (2) → passageway area (3) → Zan Yang areas (4)；
Swimming direction is when the 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)
Mullet be in push up stream mode be defined, when the mullet shoal of fish it is all individual keep top stream mode when, no longer improve water velocity；
B, after the mullet 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), it is described
The intensity of light control of fish-luring light (8) is hung in the lux of 1500 lux -2500, fish-luring light (8) and attracting bait box (9)
In Shou Yu areas (2)；
C, fish-luring light (8) opens 15-30 minutes, and after confirming that bait breath has diffused to Zan Yang areas (4), opens all escape holes
On cover plate, making each escape hole, be in can prevailing state；
D, when the mullet mantissa for entering Shou Yu areas (2) reaches the 5% of alternative shoal of fish total amount, cover plate, pass on closure escape hole
Current regulating gate (6) is closed, primary election work is terminated, collects the mullet into Shou Yu areas (2), complete the initial screening of the shoal of fish, this 5%
Mullet mantissa is 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 mullet according to claim 1, it is characterised in that：The screening side
Method is applied to the screening of the high-quality colony of different growth phases consortive group of flora mullet with the screening plant.
A kind of 3. artificial screening method of the high-quality colony of mullet according to claim 1, it is characterised in that：The screening side
Method 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 mullet according to claim 1 or 2, it is characterised in that：The sieve
Choosing method can adjust the choice accuracy of the high-quality colony of consortive group of flora mullet, as improve choice accuracy, primary election rate described in screening technique
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.
A kind of 5. artificial screening method of the high-quality colony of mullet according to claim 1 or 3, it is characterised in that：The sieve
Choosing method can adjust the choice accuracy of high-quality parent population, as improve choice accuracy, primary election rate described in screening technique by 5% adjust to
1%-5%, the end select rate to be adjusted by 0.25% to 0.01%-0.25%, and to reduce choice accuracy, primary election rate is by 5% adjustment
To 5%-10%, rate is selected to be adjusted by 0.25% to 0.25%-1% eventually.
A kind of 6. artificial screening method of the high-quality colony of mullet according to claim 1, it is characterised in that：The screening dress
When putting size and being limited by work-yard, then it should ensure that shoal of fish Zan Yang areas (4) once at least accommodate 500 by the maximum temporarily foster density
Tail mullet, and by making more set screening plants, the total amount for being allowed to accommodate the alternative mullet shoal of fish is at least up to 5000 tails or more,
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 mullet, it is characterised in that：The screening plant mainly by：Contributing region (1), receive fish
Area (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, and water supply dynamical system (5) is connected with contributing region (1)
Connect, 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), receive fish
Area (2) is 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 5 escapes are provided with the mesh sheet (11b)
Hole (11c)；
The rack B (12) is made up of framework (12a) and mesh sheet (12b), and 3 escapes are provided with the mesh sheet (12b)
Hole (12c)；
The rack C (13) is made up of framework (13a) and mesh sheet (13b), and 2 escapes are 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 1/6-1/4 of fish body body, and each escape hole in the mesh sheet is mutual
Mutually shift to install at random, it is described escape hole be only capable of accommodate 1 tail maximum specification mullet by, it is described escape hole be 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 mullet according to claim 7, it is characterised in that：On the adjacent rack
The line of centres in escape hole is not parallel with the longitudinal centre line of passageway area (3).
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1994017657A1 (en) * | 1993-02-01 | 1994-08-18 | Stephen Edward Jackman | Removal of parasites from fish |
| EP0940078B1 (en) * | 1998-03-05 | 2004-06-16 | Beate Dr. Adam | Method and device for determining the migration times of fish |
| 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 |
| CN102630620A (en) * | 2012-04-27 | 2012-08-15 | 三峡大学 | Screening device for fishes of particular specification |
| CN104542399A (en) * | 2015-01-07 | 2015-04-29 | 浙江大学 | Fish welfare grading device |
| CN106508768A (en) * | 2016-12-16 | 2017-03-22 | 黄山石屋坑冷水鱼家庭农场有限公司 | Fish fry sorting box |
-
2017
- 2017-09-14 CN CN201710856648.2A patent/CN107494380A/en not_active Withdrawn
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1994017657A1 (en) * | 1993-02-01 | 1994-08-18 | Stephen Edward Jackman | Removal of parasites from fish |
| EP0940078B1 (en) * | 1998-03-05 | 2004-06-16 | Beate Dr. Adam | Method and device for determining the migration times of fish |
| 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 |
| CN102630620A (en) * | 2012-04-27 | 2012-08-15 | 三峡大学 | Screening device for fishes of particular specification |
| CN104542399A (en) * | 2015-01-07 | 2015-04-29 | 浙江大学 | Fish welfare grading device |
| CN106508768A (en) * | 2016-12-16 | 2017-03-22 | 黄山石屋坑冷水鱼家庭农场有限公司 | Fish fry sorting box |
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Application publication date: 20171222 |