CN103609486A - Symphsodon discus breeding and fish larvae culturing method - Google Patents
Symphsodon discus breeding and fish larvae culturing method Download PDFInfo
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- CN103609486A CN103609486A CN201310517757.3A CN201310517757A CN103609486A CN 103609486 A CN103609486 A CN 103609486A CN 201310517757 A CN201310517757 A CN 201310517757A CN 103609486 A CN103609486 A CN 103609486A
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Abstract
The invention relates to a symphodon discus breeding and fish larvae culturing method. The method includes the stages of fish larvae culturing, juvenile fish culturing and artificial bait culturing. By means of control of the variety of fed biological bait, feeding times, feeding time and water body culture conditions of a parent fish egg laying vat and a juvenile fish culture vat, requirements of fish larvae growth for water quality and nutrition can be effectively met, the survival rate of the fish larvae is improved, quick growth of the fish larvae is promoted and economic efficiency is increased.
Description
Technical field
The breeding and the young postlarva cultural method that the present invention relates to a kind of seven color angle fish, belong to culture of ornamental fish field.
Background technology
Seven color angle fish are under the jurisdiction of Perciformes (Perciformes), Anabantoidei (Percoidei) ,Ci madai section (Cichlidae), coil beautiful fish genus (Symphysodon), originate in Amazon.Through the number artificial modified in generation, develop and many new kinds, be subject to pursuing of numerous fans, be described as the king of tropical ornamental fish.And seven color angle fish trades spread all over the world, particularly in Southeast Asia, be the important part of pet fish trade.In recent years, domestic raiser is more, is mainly distributed in the ground such as Shanghai, Guangzhou, Liaoning.Seven color angle parent populations have the young behavior of food in one's mouth, the prelarva that enters the flat trip phase by the parent population epidermal mucus of pecking at as open-mouthed bait, manually throw something and feed the biological feeds such as halogen worm (Brine Shrimp) nauplius biological feed, thorniness Moina (Moina macrocopa) and artitificial food (by going OX-heart 50%-60% and the peeled shrimp 40%-50% of myocardium to rub again in the future, add again every kilogram of 2.0-4.0g of amino acid, every kilogram of 1.0-2.0g of allicin, 21 every kilogram of Jin Weita 3.0-3.5g and every kilogram of 0.5-1.0g of spirulina powder etc.).
Yet because each culturist's level is different, cultural method there is no unified standard, cause the young postlarva quality that breeds uneven, poor growth, if cultivate improperly, can cause the large quantities of death of prelarva.
Summary of the invention
The object of the invention is to overcome the defect of prior art, breeding and the young postlarva cultural method of a kind of seven color angle fish is provided.
The present invention is achieved by the following technical solutions:
The breeding of a kind of seven color angle fish and young postlarva cultural method:
(1) prelarva is cultivated: select bright-coloured, in vigorous health and each of the fully-developed color angle fish male and female in one age seven of body colour to put into Gunther parent fish spawning cylinder, the artitificial food of throwing something and feeding, at least extracts the ight soil of cylinder bottom every day and change water once; After Gunther parent fish spawning, add malachite green prevention water mold, the artitificial food and change water of continuing to throw something and feed, then prelarva membrane, enter the parent population mucus that starts to peck at of flat trip phase and obtain nutrition until enter the postlarva phase;
Preferably, after Gunther parent fish spawning, through 60-65h prelarva membrane, then through 50-60h, prelarva enters the flat trip phase, and the parent population mucus that starts to peck at is obtained nutrition.
Preferably, the specification of described Gunther parent fish spawning cylinder is 40-50cm*40-50cm*40-50cm; In described Gunther parent fish spawning cylinder, water level remains on 35-40cm; Water temperature is that between 28 ℃-30 ℃, pH value is 6.5-7.0, and water hardness 2.0-3.5 ° DH is used gas stripping type biochemical filter to carry out water treatment and guarantees that dissolved oxygen is sufficient, and oxygen content is not less than 5-6mg/L; Inside be placed with the tank of laying eggs, for Gunther parent fish spawning.
Preferably, the parent population artitificial food amount of at every turn throwing something and feeding is the 3%-5%(weight in wet base of parent population body weight), throw something and feed 2-3 every day, every minor tick 2-3 hour.
Preferably, the described water that changes, for change 1/3-1/2 through the abundant deionized water of aeration heating, optimal hardness 2.0-3.5 ° DH at every turn.
Preferably, the addition of described malachite green is to add 0.1-0.15mg in every premium on currency body.
Preferably, after Gunther parent fish spawning, in regular maintenance, the irritability reaction of parent population be should reduce, parent population eat after frightened prelarva or fertilized egg prevented.
(2) postlarva shifts: from the 90%-95% prelarva parent population mucus that starts to peck at, count, after 7-8 days, postlarva is shifted in the postlarva culturing jar of postlarva cultivating system;
Preferably, described postlarva cultivating system comprises a plurality of postlarva culturing jars that are positioned at the Water-accumulating water cylinder of top and are positioned at described Water-accumulating water cylinder below; Described Water-accumulating water cylinder is connected with a water delivery house steward, and one end of water delivery house steward is connected with water pump, and water pump is positioned at below the water surface of Water-accumulating water cylinder; Each postlarva culturing jar is equipped with a delivery pipe branch, and each delivery pipe branch is provided with guard with on one end port being connected on postlarva culturing jar, prevents from that current are too fast steck is gone out; Each delivery pipe branch is all connected with water delivery house steward; One side of each postlarva culturing jar is equipped with a branch drain, and each branch drain is all connected with a main sewer; Described delivery pipe branch and branch drain are equipped with control valve.
Preferably, the specification of described postlarva culturing jar is 40-50cm*40-50cm*40-50cm, is inside provided with heating rod, gas stripping type biochemical filter and sucking pump; Water level remains between 35-40cm, and pH7.0-7.5 makes water temperature be controlled at 29-31 ℃ by described heating rod, uses gas stripping type biochemical filter to carry out water treatment and guarantees that dissolved oxygen is sufficient, and oxygen content is not less than 5-6mg/L; Described sucking pump is for ight soil and the residual bait of sucking-off cylinder bottom.
Preferably, when described postlarva shifts, use water ladle, in wooden dipper, fill the water in Gunther parent fish spawning cylinder, with dredger, one by one postlarva is dragged in water ladle, in operation, avoid scratch parent population and small fish; Postlarva, all drag for after water wooden dipper, water ladle is put into postlarva culturing jar and cross water 20-25min, then water in water ladle is poured out to 1/5-1/4, add again water reduction water level in postlarva culturing jar, after this, at interval of repeating this operation after 5-10min once, be total to after 3-4 time, pour the water in water ladle into postlarva culturing jar together with postlarva.
(3) postlarva cultivation stage one: after postlarva is all transferred to postlarva culturing jar, start the artemia nauplii of throwing something and feeding, first day is thrown something and fed 2-3 time, every minor tick 2-3h, each feeding volume is the 2%-3%(weight in wet base of postlarva body weight); Throw something and feed 4-5 time every day afterwards, every minor tick 2-3h, each feeding volume is the 2%-3%(weight in wet base of postlarva body weight), continue the 18-20 days that throws something and feeds;
Preferably, described in throw something and feed during artemia nauplii, every day is sucking-off cylinder bottom ight soil, residual bait and change water once at least, change at every turn 1/3-1/2 through the running water of fully aeration heating to postlarva culturing jar.
Preferably, described in throw something and feed during artemia nauplii, in the water body of halogen worm hatching, add Norfloxacin, every premium on currency body adds Norfloxacin 0.05-0.1g; Be used for strengthening artemia nauplii, can promote the digestion to artemia nauplii in the postlarva phase, help promote the growth of postlarva and prevent the problems such as some enteritis.
Preferably, described artemia nauplii is being for to throw something and feed the previous day, by halogen worm's ovum in water temperature 25-27 ℃, the water-bed aeration hatching 20-30h gained of salinity 15-20; While throwing something and feeding, stop aeration, after 5-10min minute, discard the unhatched halogen worm's ovum of water body lower floor and the artemia nauplii of dying and the halogen worm shell on water body upper strata, reclaim the artemia nauplii of living in middle level, with 300 object strainer filterings, the artemia nauplii of getting afterwards on filter screen is thrown something and fed.
(4) postlarva cultivation stage two: after artemia nauplii is thrown something and fed and finished, freezing thorniness Moina starts to throw something and feed, starting to turn food cultivates, turn food first day, the weight of alternately throwing something and feeding is the 3%-4%(weight in wet base of postlarva body weight) freezing thorniness Moina and be the 2%-3%(weight in wet base of postlarva body weight) artemia nauplii, throw something and feed 5-6 time altogether, every minor tick 2-3h; The freezing thorniness Moina of throwing something and feeding every day afterwards, throw something and feed number of times and time are controlled with turning food first day, each feeding volume is the 3%-4%(weight in wet base of postlarva body weight);
Preferably, turn food second day and start, at least change water once every day, changes 1/3-1/2 through the running water that fully aeration heats at every turn, throws something and feeds after 20-30min, by the residual bait of cylinder bottom, ight soil sucking-off at every turn.
(5) artitificial food is cultivated: when postlarva grows to 5-6cm, turn and feed artitificial food, and first day alternately throw something and feed artitificial food and freezing thorniness Moina, every minor tick 2-3h, throws something and feeds 5-6 time altogether, the weight of at every turn throwing something and feeding is the 3%-4%(weight in wet base of postlarva body weight); The artitificial food of only throwing something and feeding every day afterwards, every day 4-5 time, every minor tick 2-3h, the weight of at every turn throwing something and feeding is the 3%-4%(weight in wet base of postlarva body weight) until cultivate as juvenile fish.
Preferably, from turning hello artitificial food second day, at least change water once every day, changes 1/3-1/2 through the running water that fully aeration heats at every turn, throws something and feeds after 20-30min, by the residual bait of cylinder bottom, ight soil sucking-off at every turn.
Preferably, when postlarva grows into juvenile fish, the weight of the artitificial food of throwing something and feeding will be increased to the 4%-5%(weight in wet base of juvenile fish body weight), so both meet growth and also saved bait.
Preferably, described artitificial food is obtained by mixing by the raw material rubbing of following weight portion:
Technique effect of the present invention and advantage are:
Seven color angle's cultivation that the present invention carries out, cost is low, and power consumption is few, the clear and definite different demands of different cultivation periods to biological feed, can effectively meet the demand of young postlarva growth to water quality, nutrition, improve the survival rate of young postlarva, promote young postlarva Fast Growth, increase economic benefit.The feature of postlarva cultivating system of the present invention, for can remove in time residual bait and the ight soil in postlarva culturing jar, is guaranteed the condition of water quality of culturing jar, can cultivate more seven color angle fish in identical water body.When changing water, open or close and change penstock, convenient and time-saving laborsaving.
Accompanying drawing explanation
Fig. 1 postlarva cultivating system structural representation
Reference numeral:
1, Water-accumulating water cylinder; 2, postlarva culturing jar; 3, heating rod; 4, water pump; 5, water sprite essence; 6, water delivery house steward; 7, delivery pipe branch; 8, control valve.
Embodiment
By specific instantiation, technical scheme of the present invention is described below.Should be understood that one or more method steps that the present invention mentions do not repel between the step that also has additive method step or clearly mention at these before and after described combination step can also insert additive method step; Should also be understood that these embodiment are only not used in and limit the scope of the invention for the present invention is described.
The breeding of a kind of seven color angle fish and postlarva cultural method:
Stage one:
In Gunther parent fish spawning cylinder (40-50cm*40-50cm*40-50cm), add water to 35-40cm, water hardness 2.0-3.5 ° DH, pH value are 6.5-7.0; Heating rod is installed, and set temperature is 28-30 ℃, and gas stripping type biochemical filter is installed, and guarantees that water oxygen gas content is not less than 5-6mg/L; Put into the tank of laying eggs.
After keeping system operation 3-4 days, select that body colour is bright-coloured, in vigorous health, each of fully-developed color angle fish male and female in one age seven are put into cylinder.The artitificial food of throwing something and feeding every day 2-3 time, each feeding volume is the 3%-5% of parent population body weight, every minor tick 2-3 hour, at least change water once every day, and the residual bait in parent population cylinder and ight soil are discharged, and changes 1/3-1/2 through the abundant deionized water of aeration heating at every turn.
Until after Gunther parent fish spawning, add malachite green prevention fish-egg water mold, addition is to add 0.1-0.15mg in every premium on currency body.Through 60-65h prelarva membrane, then through 50-60h, prelarva enters the flat trip phase, and the parent population mucus that starts to peck at is obtained nutrition, then continues cultivation to entering the postlarva phase.During this period, parent population throws something and feeds, changes water as before.In regular maintenance, should reduce the irritability reaction of parent population, prevent parent population eat after frightened prelarva or fertilized egg.
Stage two:
After Gunther parent fish spawning, set about preparing postlarva culturing jar (40-50cm*40-50cm*40-50cm).In cylinder, add water to 35-40cm, pH value is 7.0-7.5.Heating rod is installed, and set temperature is 29-31 ℃, and gas stripping type biochemical filter is installed, and guarantees that water oxygen gas content is not less than 5-6mg/L.
From the prelarva of the 90%-95% parent population mucus that starts to peck at, count, after 7-8 days, postlarva is dragged for into postlarva culturing jar.Between when the operating time is that morning 10-12.While pulling out, with water ladle, fill the water in Gunther parent fish spawning cylinder, with dredger, one by one postlarva is dragged in water ladle, care should be used in operation, prevents scratch parent population and small fish.Parent population has epimeletic behavior, when parent population strong reaction, should stop fishing with a net, and after parent population behavior steadily, fishes for again, can't fish for by force.
Postlarva, all drag for after water wooden dipper, can't directly pour postlarva culturing jar into.Water ladle should be put into postlarva culturing jar and cross water 20-25min, to guarantee that water temperature is consistent, afterwards, water in water ladle is poured out to 1/5-1/4, add again water reduction water level in postlarva culturing jar, after this, at interval of repeating this operation after 5-10min once, front and back are total to after 3-4 time, pour the water in water ladle into postlarva culturing jar together with postlarva.
The artemia nauplii of throwing something and feeding for the first time between during 13-14 afternoon on the same day, feeding volume is the 2%-3%(weight in wet base of postlarva body weight); Every 2-3h, throw something and feed identical weight artemia nauplii once afterwards, threw something and fed 2-3 the same day again.
Described artemia nauplii is being thrown something and fed the previous day, by halogen worm's ovum in the water-bed aeration hatching of water temperature 25-27 ℃, salinity 15-20 20-30h.While throwing something and feeding, first stop the supple of gas or steam after 5-10min, by being sunken to the dead ovum of bottom and the artemia nauplii of dying, emit, then the nauplius that water body middle level is lived emits collection, discard the shell of the halogen worm's ovum on upper strata.With 300 object screen packs, filter, then get artemia nauplii above filter screen and throw something and feed.
From second day, count, the artemia nauplii of throwing something and feeding has 18-20 days altogether.Throw something and feed every day artemia nauplii 4-5 time.At least change water once every day, by cylinder bottom ight soil, residual bait sucking-off, changes 1/3-1/2 through the running water of abundant aeration, heating at every turn, and requiring water temperature is 29 ℃-31 ℃.
Throw something and feed during artemia nauplii, in the water body of halogen worm hatching, add Norfloxacin, every premium on currency adds 0.05-0.1g, for strengthening artemia nauplii, can promote the digestion to artemia nauplii in the postlarva phase, help promote the growth of postlarva and prevent the problems such as some enteritis.
Artemia nauplii starts to turn the food freezing thorniness Moina of throwing something and feeding after throwing something and feeding and finishing.Turn food the same day (first day), the weight of the thorniness Moina of alternately throwing something and feeding is the 3%-4%(weight in wet base of postlarva body weight) and the weight of artemia nauplii be the 2%-3%(weight in wet base of postlarva body weight), throw something and feed 5-6 time altogether, every minor tick 2-3h.
After this, the freezing thorniness Moina of throwing something and feeding, throw something and feed number of times and time are controlled with turning food first day, each feeding volume is the 3%-4%(weight in wet base of postlarva body weight); At least change water once every day, changes 1/3-1/2 through the running water that fully aeration heats at every turn, throws something and feeds after 20-30min, by the residual bait of cylinder bottom, ight soil sucking-off at every turn.
Stage three:
When postlarva grows to the long 5-6cm of being of body, turn and feed artitificial food.Turn food the same day, the weight of the artitificial food of alternately throwing something and feeding is the 3%-4%(weight in wet base of postlarva body weight) and the weight of freezing thorniness Moina be the 3%-4%(weight in wet base of postlarva body weight); Throw something and feed 5-6 time altogether, every minor tick 2-3h; From next day every day the artitificial food of only throwing something and feeding, every day 4-5 time, every minor tick 2-3h, the biological feed of throwing something and feeding like this and artitificial food are connected the growth that is conducive to juvenile fish, and promote digestive system to form.
Described artitificial food is obtained by mixing by the raw material rubbing of following weight portion: the OX-heart 500-600g that removes myocardium; Peeled shrimp 400-500g; Amino acid 2-4g; Allicin 1-2g; 21 gold medals are tieed up his 3.0-3.5g; Spirulina powder 0.5-1.0g.
The artitificial food of throwing something and feeding rises next day, and at least change water once every day, changes 1/3-1/2 through the running water that fully aeration heats at every turn, throws something and feeds after 20-30min at every turn, by the residual bait of cylinder bottom, ight soil sucking-off, prevents that artitificial food from destroying water quality.Along with the growth of postlarva will regulate the scale of feeding of artitificial food, when postlarva grows into young stage, the feeding volume of artitificial food is brought up to the 4%-5% of juvenile fish body weight, and so both meeting growth had saving bait.
Described postlarva culturing jar is in a plurality of postlarva culturing jars in postlarva cultivating system (as shown in Figure 1); Described postlarva cultivating system comprises a plurality of postlarva culturing jars that are positioned at the Water-accumulating water cylinder of top and are positioned at described Water-accumulating water cylinder below; Described Water-accumulating water cylinder is connected with a water delivery house steward, and one end of water delivery house steward is connected with water pump, and water pump is positioned at below the water surface of Water-accumulating water cylinder; Each postlarva culturing jar is equipped with a delivery pipe branch, on one end port that each delivery pipe branch is connected with postlarva culturing jar, guard is installed, and prevents from that current are too fast steck is gone out; Each delivery pipe branch is all connected with water delivery house steward; One side of each postlarva culturing jar is equipped with a branch drain, and each branch drain is all connected with a main sewer; Described delivery pipe branch and branch drain are equipped with control valve.
Carry out the cleaning of young postlarva culturing jar, after the 20-30min that feeds, take residual bait and ight soil in the mode sucking-off culturing jar of siphon.Culturing jar at least changes water once every day, opens the valve of draining when changing water, after the water of eliminating 1/3-1/2, closes water discharging valve.Then open priming valve door filling through the new water of abundant aeration heating to being applicable to position, while making sure to keep in mind to change water, to control the flow velocity of water well.
The feature of postlarva culturing jar, for can remove in time residual bait and the ight soil in culturing jar, is guaranteed the condition of water quality of culturing jar, can cultivate more seven color angle fish in identical water body.When changing water, open or close and change penstock, convenient and time-saving laborsaving.
Embodiment 1
With preceding method, carry out the breeding of seven color angle fish and the cultivation of postlarva: under membrane prelarva, health length is 13.35 ± 3.21mm, body weight is 0.24 ± 0.09g.After the artemia nauplii of feeding 18 days, average body length is 25.12 ± 5.36mm, and average weight is 0.81 ± 0.25g.Turn afterwards and feed freezing thorniness Moina, after 20 days, the long 56.67 ± 10.36mm of average body, average weight is 7.18 ± 1.76g.Then turn and eat the artitificial food of feeding, when postlarva grows up to juvenile fish, the scale of feeding of artitificial food is increased to the 4%-5% of juvenile fish body weight, until support adult fish.So alternately feed biological feed and artitificial food, be conducive to the g and D of young postlarva, improves premunition and the survival rate of young postlarva.The small fish survival rate that the method is raised is 95.8%, adopt alternately feed biological feed and artitificial food to make small fish reach satisfied at the nutritional need of different vegetative stages, not only increase growth rate but also strengthen the physique of fish, the adaptive capacity of environment and premunition are obviously strengthened.When treating or preventing identical disease, the fish of biological feed and artitificial food of alternately feeding, medication is only the dose concentration of the 1/3-1/2 of the common fish of feeding.Along with the growth of small fish, change the scale of feeding of bait, can improve the availability of bait and keep the good of the interior water quality of culturing jar.
Embodiment 2
With preceding method, carry out the breeding of seven color angle fish and the cultivation of postlarva: under membrane prelarva, health length is 12.87 ± 3.69mm, body weight is 0.22 ± 0.09g.After the artemia nauplii of feeding 20 days, average body length is 26.45 ± 6.13mm, and average weight is 0.89 ± 0.31g.Turn afterwards and feed freezing thorniness Moina, after 20 days, the long 58.43 ± 11.58mm of average body, average weight is 8.46 ± 2.39g.Then turn and eat the artitificial food of feeding, when postlarva grows up to juvenile fish, the scale of feeding of artitificial food is increased to the 4%-5% of juvenile fish body weight, until support adult fish.So alternately feed biological feed and artitificial food, be conducive to the g and D of young postlarva, improves premunition and the survival rate of young postlarva.The small fish survival rate that the method is raised is 94.9%, adopt alternately feed biological feed and artitificial food to make small fish reach satisfied at the nutritional need of different vegetative stages, not only increase growth rate but also strengthen the physique of fish, the adaptive capacity of environment and premunition are obviously strengthened.When treating or preventing identical disease, the fish of biological feed and artitificial food of alternately feeding, medication is only the dose concentration of the 1/3-1/2 of the common fish of feeding.Along with the growth of small fish, change the scale of feeding of bait, can improve the availability of bait and keep the good of the interior water quality of the interior water culturing jar of culturing jar.
Claims (16)
1. the breeding of seven color angle fish and a young postlarva cultural method, comprise following incubation step:
(1) prelarva is cultivated: select bright-coloured, in vigorous health and each of the fully-developed color angle fish male and female in one age seven of body colour to put into Gunther parent fish spawning cylinder, the artitificial food of throwing something and feeding, at least extracts the ight soil of cylinder bottom every day and change water once; After Gunther parent fish spawning, add malachite green prevention water mold, the artitificial food and change water of continuing to throw something and feed, then prelarva membrane, enter the parent population mucus that starts to peck at of flat trip phase and obtain nutrition until enter the postlarva phase;
(2) postlarva shifts: from the 90%-95% prelarva parent population mucus that starts to peck at, count, after 7-8 days, postlarva is shifted in the postlarva culturing jar of postlarva cultivating system;
(3) postlarva cultivation stage one: after postlarva is all transferred to postlarva culturing jar, start the artemia nauplii of throwing something and feeding, first day is thrown something and fed 2-3 time, every minor tick 2-3h, and each feeding volume is the 2%-3% of postlarva body weight; Throw something and feed 4-5 time every day afterwards, every minor tick 2-3h; Each feeding volume is the 2%-3% of postlarva body weight, continues the 18-20 days that throws something and feeds;
(4) postlarva cultivation stage two: after artemia nauplii is thrown something and fed and finished, freezing thorniness Moina starts to throw something and feed, starting to turn food cultivates, turn food first day, the weight of alternately throwing something and feeding be postlarva body weight 3%-4% freezing thorniness Moina and be the artemia nauplii of the 2%-3% of postlarva body weight, throw something and feed 5-6 time altogether, every minor tick 2-3h; The freezing thorniness Moina of throwing something and feeding every day afterwards, throw something and feed number of times and time are controlled with turning food first day, and each feeding volume is the 3%-4% of postlarva body weight;
(5) artitificial food is cultivated: when postlarva grows to 5-6cm, turn and feed artitificial food, and first day alternately throw something and feed artitificial food and freezing thorniness Moina, every minor tick 2-3h, throws something and feeds 5-6 time altogether, and the weight of at every turn throwing something and feeding is the 3%-4% of postlarva body weight; The artitificial food of only throwing something and feeding every day afterwards, every day 4-5 time, every minor tick 2-3h, the weight of at every turn throwing something and feeding is that the 3%-4% of postlarva body weight is until cultivate as juvenile fish.
2. the breeding of a kind of seven color angle fish as claimed in claim 1 and young postlarva cultural method, is characterized in that, in step (1), the specification of described Gunther parent fish spawning cylinder is 40-50cm*40-50cm*40-50cm; In described Gunther parent fish spawning cylinder, water level remains on 35-40cm; Water temperature is that between 28 ℃-30 ℃, pH value is 6.5-7.0, and water hardness 2.0-3.5 ° DH is used gas stripping type biochemical filter to carry out water treatment and guarantees that dissolved oxygen is sufficient, and oxygen content is not less than 5-6mg/L; Inside be placed with the tank of laying eggs, for Gunther parent fish spawning.
3. the breeding of a kind of seven color angle fish as claimed in claim 1 and young postlarva cultural method, is characterized in that, in step (1), the parent population artitificial food amount of at every turn throwing something and feeding is the 3%-5% of parent population body weight, and throw something and feed 2-3 every day, every minor tick 2-3h.
4. the breeding of a kind of seven color angle fish as claimed in claim 1 and young postlarva cultural method, is characterized in that, in step (1), the described water that changes, for change 1/3-1/2 through the abundant deionized water of aeration heating, optimal hardness 2.0-3.5 ° DH at every turn.
5. the breeding of a kind of seven color angle fish as claimed in claim 1 and young postlarva cultural method, is characterized in that, in step (1), the addition of described malachite green is to add 0.1-0.15mg in every premium on currency body.
6. the breeding of a kind of seven color angle fish as claimed in claim 1 and young postlarva cultural method, is characterized in that, in step (1), after Gunther parent fish spawning, in regular maintenance, reduces the irritability reaction of parent population, prevents parent population eat after frightened prelarva or fertilized egg.
7. the breeding of a kind of seven color angle fish as claimed in claim 1 and young postlarva cultural method, is characterized in that, described postlarva cultivating system comprises a plurality of postlarva culturing jars that are positioned at the Water-accumulating water cylinder of top and are positioned at described Water-accumulating water cylinder below; Described Water-accumulating water cylinder is connected with a water delivery house steward, and one end of water delivery house steward is connected with water pump, and water pump is positioned at below the water surface of Water-accumulating water cylinder; Each postlarva culturing jar is equipped with a delivery pipe branch, and each delivery pipe branch is provided with guard with on one end port being connected on postlarva culturing jar, prevents from that current are too fast steck is gone out; Each delivery pipe branch is all connected with water delivery house steward; One side of each postlarva culturing jar is equipped with a branch drain, and each branch drain is all connected with a main sewer; Described delivery pipe branch and branch drain are equipped with control valve.
8. the breeding of a kind of seven color angle fish as claimed in claim 7 and young postlarva cultural method, is characterized in that, the specification of described postlarva culturing jar is 40-50cm*40-50cm*40-50cm, is inside provided with heating rod, gas stripping type biochemical filter and sucking pump; Water level remains between 35-40cm, and pH7.0-7.5 makes water temperature be controlled at 29-31 ℃ by described heating rod, uses gas stripping type biochemical filter to carry out water treatment and guarantees that dissolved oxygen is sufficient, and oxygen content is not less than 5-6mg/L; Described sucking pump is for ight soil and the residual bait of sucking-off cylinder bottom.
9. the breeding of a kind of seven color angle fish as claimed in claim 1 and young postlarva cultural method, is characterized in that, when described postlarva shifts, use water ladle, in wooden dipper, fill the water in Gunther parent fish spawning cylinder, with dredger, one by one postlarva is dragged in water ladle, in operation, avoid scratch parent population and small fish; Postlarva, all drag for after water wooden dipper, water ladle is put into postlarva culturing jar and cross water 20-25min, then water in water ladle is poured out to 1/5-1/4, add again water reduction water level in postlarva culturing jar, after this, at interval of repeating this operation after 5-10min once, be total to after 3-4 time, pour the water in water ladle into postlarva culturing jar together with postlarva.
10. the breeding of a kind of seven color angle fish as claimed in claim 1 and young postlarva cultural method, it is characterized in that, in step (3), during the described artemia nauplii of throwing something and feeding, every day is sucking-off cylinder bottom ight soil, residual bait and change water once at least, change at every turn 1/3-1/2 through the running water of fully aeration heating to postlarva culturing jar.
The breeding of 11. a kind of seven color angle fish as claimed in claim 1 and young postlarva cultural method, it is characterized in that, in step (3), described in throw something and feed during artemia nauplii, in the water body of halogen worm hatching, add Norfloxacin, every premium on currency body adds Norfloxacin 0.05-0.1g.
The breeding of 12. a kind of seven color angle fish as claimed in claim 1 and young postlarva cultural method, it is characterized in that, in step (3), described artemia nauplii is being for to throw something and feed the previous day, by halogen worm's ovum in water temperature 25-27 ℃, the water-bed aeration hatching 20-30h gained of salinity 15-20; While throwing something and feeding, stop aeration, after 5-10min minute, discard the unhatched halogen worm's ovum of water body lower floor and the artemia nauplii of dying and the halogen worm shell on water body upper strata, reclaim the artemia nauplii of living in middle level, with 300 object strainer filterings, the artemia nauplii of getting afterwards on filter screen is thrown something and fed.
The breeding of 13. a kind of seven color angle fish as claimed in claim 1 and young postlarva cultural method, it is characterized in that, in step (4), turning food second day starts, at least change water once every day, change 1/3-1/2 through the running water that fully aeration heats at every turn, throw something and feed after 20-30min, by the residual bait of cylinder bottom, ight soil sucking-off at every turn.
The breeding of 14. a kind of seven color angle fish as claimed in claim 1 and young postlarva cultural method, it is characterized in that, in step (5), from turning hello artitificial food second day, at least change water once every day, change 1/3-1/2 through the running water that fully aeration heats at every turn, throw something and feed after 20-30min, by the residual bait of cylinder bottom, ight soil sucking-off at every turn.
The breeding of 15. a kind of seven color angle fish as claimed in claim 1 and young postlarva cultural method, it is characterized in that, in step (5), when postlarva grows into juvenile fish, the weight of artitificial food of throwing something and feeding will be increased to the 4%-5% of juvenile fish body weight, has so both met growth and has also saved bait.
The breeding of 16. a kind of seven color angle fish as claimed in claim 1 and young postlarva cultural method, is characterized in that, described artitificial food is obtained by mixing by the raw material rubbing of following weight portion:
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| CN105766713A (en) * | 2016-03-10 | 2016-07-20 | 中国水产科学研究院东海水产研究所 | Temperature regulating and controlling method for safe wintering of young pomfret |
| CN107535390A (en) * | 2016-06-29 | 2018-01-05 | 长沙湘实观赏鱼科技有限公司 | A kind of breeding method of ray fish |
| CN106780076A (en) * | 2016-11-14 | 2017-05-31 | 中国水产科学研究院渔业机械仪器研究所 | A kind of intelligent fisherman precisely feeds management system |
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| CN110367153A (en) * | 2019-09-02 | 2019-10-25 | 吉林省水产科学研究院 | Variegated sculpins postlarva breeding method |
| CN110999828A (en) * | 2019-12-19 | 2020-04-14 | 上海海洋大学 | Method for changing fish body color distribution pattern |
| CN113317255A (en) * | 2021-07-12 | 2021-08-31 | 中国水产科学研究院渔业机械仪器研究所 | Breed worker's ship fish suction row screen panel mounting structure |
| CN113317255B (en) * | 2021-07-12 | 2022-08-12 | 中国水产科学研究院渔业机械仪器研究所 | Breed worker's ship fish suction row screen panel mounting structure |
| CN117730807A (en) * | 2023-12-25 | 2024-03-22 | 乐昌佳亚农业新技术有限公司 | Ecological circulating water culture method for colorful myxocyprinus asiaticus |
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