CN105900877B - A kind of method of artificial induced spawning breeding mud fish fry - Google Patents
A kind of method of artificial induced spawning breeding mud fish fry Download PDFInfo
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- CN105900877B CN105900877B CN201610257024.4A CN201610257024A CN105900877B CN 105900877 B CN105900877 B CN 105900877B CN 201610257024 A CN201610257024 A CN 201610257024A CN 105900877 B CN105900877 B CN 105900877B
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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
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A40/00—Adaptation technologies in agriculture, forestry, livestock or agroalimentary production
- Y02A40/80—Adaptation technologies in agriculture, forestry, livestock or agroalimentary production in fisheries management
- Y02A40/81—Aquaculture, e.g. of fish
Abstract
The invention discloses a kind of methods of artificial induced spawning breeding mud fish fry, belong to cultivation field.A kind of method of artificial induced spawning breeding mud fish fry of the present invention, including preparing spawning and hatching pond, overflowing device is set in spawning and hatching bottom of pond portion；By water filling in spawning and hatching pond, by constant water temperature in spawning and hatching pond at 15 ~ 25 DEG C, after sterilizing 2 ~ 4h, pool wall is rinsed well after bleeding off water, in setting several collection ovum collection seedling box, several oviposition nets and aerator in spawning and hatching pond, five steps such as clean water are noted into pond.A kind of method of artificial induced spawning breeding mud fish fry of the present invention has easy to operate, hastens parturition efficient, and mud fish fry output is high, and loach growth and development is good, regularity is high, the characteristics of disclosure satisfy that artificial breeding largely to the demand of mud fish fry.
Description
Technical field
The present invention relates to a kind of cultural method, particularly a kind of propagation method of loach artificial induced spawning.
Background technology
Loach is high protein, the aquatic products of low fat, fine and tender taste, full of nutrition, is both delicious food, with more compared with
High food therapy value is known as the good reputation of " ginseng in water ".As wild loach quantity is drastically reduced, artificial breeding loach prospect is wide
It is wealthy.
But since loach natural propagation oviposition is irregular, ovum grain hatching rate is low, and mud fish fry regularity is poor, can not obtain in batches
High-quality mud fish fry is obtained, artificial induced spawning propagation method is taken, mud fish fry can be bred in batch.But the artificial of the prior art is urged
Produce inefficient, mud fish fry output is relatively low, and loach growth and development situation is general, regularity is poor.
Invention content
The goal of the invention of the present invention is：In view of the above problems, it is easy to operate to provide one kind, hastens parturition efficient,
Mud fish fry output is high, and loach growth and development is good, regularity is high, disclosure satisfy that artificial breeding largely to the loach of the demand of mud fish fry
The propagation method of artificial induced spawning.
The technical solution adopted by the present invention is as follows：
A kind of method of artificial induced spawning breeding mud fish fry of the present invention, includes the following steps,
Step 1 prepares spawning and hatching pond, and overflowing device is set in spawning and hatching bottom of pond portion；
Step 2, by water filling in spawning and hatching pond, by constant water temperature in spawning and hatching pond at 15 ~ 25 DEG C, after sterilizing 2 ~ 4h,
Pool wall is rinsed well after bleeding off water, it is past in setting several collection ovum collection seedling box, several oviposition nets and aerator in spawning and hatching pond
Clean water is noted in pond；
Step 3 selects the close loach of gonadal maturation, prepares suitable ocyodinic, is put into after close loach is injected ocyodinic
In oviposition net, aerator is opened；
Step 4 controls water temperature according to Effect time, waits all to pull close loach out after the completion of laying eggs, and oviposition net is kept to produce
In egg hatching pond；
Step 5, for control water temperature at 12 ~ 25 DEG C, hatching emergence when mud fish fry can freely move about, carries out opening throwing
Hello, mud fish fry is collected in due course is cultivated.
A kind of method of artificial induced spawning breeding mud fish fry of the present invention, the spawning and hatching pond are equipped with osculum, and oviposition is incubated
The bottom of pond for changing pond is tilted to osculum direction；The overflowing device includes the drainpipe and water-level control apparatus that are connected, described
Water-level control apparatus includes the height of water level adjustment portion being connected and gap, the height of water level adjustment portion and drainpipe phase
Even, the height of water level adjustment portion is set to around osculum, and the bottom in the height of water level conciliation portion is equal with bottom of pond.
By adopting the above-described technical solution, after the depth of water of water has been more than the scheduled suitable depth of water, water can be certainly
It is dynamic to overflow, it avoids the depth of water excessively high, is unfavorable for the breeding and growth of loach.It, can as soon as possible smoothly simultaneously during disinfection etc.
Water is drained, disinfection is not remained with substance in pond.
A kind of method of artificial induced spawning breeding mud fish fry of the present invention, the specification in the spawning and hatching pond is 8 meters long, wide
2.5 meters, it is 0.5 meter high, the area in every mouthful of spawning and hatching pond is 20 square metres；The draining length of tube is more than pool wall thickness 10cm,
Caliber is 7.5cm；The gap is apart from bottom of pond height 40cm；The height of water level conciliation portion setting height of water level is 40cm.
By adopting the above-described technical solution, the size in spawning and hatching pond is the most reasonable, in most cost-saving range,
Ensure suitable breeding area.
A kind of method of artificial induced spawning breeding mud fish fry of the present invention, the collection ovum collection seedling box grow 3.8 meters, wide by 2.4, height
0.5 meter, the opening tether for collecting ovum collection seedling box quadrangle and collecting ovum collection seedling box tightens, and every mouthful of spawning and hatching pond is close equipped with two mouthfuls
Eye net cage, the collection ovum collection seedling box are made of 80 mesh bolting silk cloth.
By adopting the above-described technical solution, collection ovum collection seedling box can be used close eye net cage and be made, use close eye net cage can be with
The hatching rate of loach ovum grain is improved, when mud fish fry collection is transferred to pond, collection ovum collection seedling box only need to be slowly lifted from one, by mud
Loach seedlings focus on one jiao of ovum collection seedling box, are scooped out with small basin, and collection mud fish fry is convenient and efficient and no seedling injury, reduction pass through
Ji loss.
A kind of method of artificial induced spawning breeding mud fish fry of the present invention, the oviposition net is 4.2 meters long, 2.8 meters wide, by 8 mesh
Nylon mesh sheet be made, in every mouthful of spawning and hatching pond be equipped with two oviposition nets.
By adopting the above-described technical solution, the close loach after hastening parturition is put into oviposition net, close loach lays eggs grain can be from oviposition
It is drained in mesh in close eye net cage, avoids the phenomenon that close loach eats ovum grain, improve the output capacity of mud fish fry.
A kind of method of artificial induced spawning breeding mud fish fry of the present invention, the oxygenation of aerator in every mouthful of spawning and hatching pond
Power >=40W.
By adopting the above-described technical solution, electric taste formula air pump oxygenation may be selected according to the quantity of hatching in spawning and hatching pond
Machine or vortex air pump aerator to improve spawning and hatching water body dissolved oxygen, improve ovum grain hatching rate, each pond the inside
4 sets of oxygenation pipe and sand head.
A kind of method of artificial induced spawning breeding mud fish fry of the present invention, the collection ovum collection seedling box bottom contact spawning and hatching pond
Bottom, quadrangle and upper edge are fixed on pool wall, pool inner water bit depth 40cm, and collection ovum collection seedling box upper edge is higher by water surface 10cm, collects ovum
Collection seedling box upper surface is equipped with oviposition net, and the quadrangle and edge of the oviposition net are higher by the water surface, net bottom and bottom of pond interval.
By adopting the above-described technical solution, the close loach after hastening parturition is put into oviposition net, close loach lays eggs grain can be from oviposition
It is drained in mesh in close eye net cage, avoids the phenomenon that close loach eats ovum grain, improve the output capacity of mud fish fry.
A kind of method of artificial induced spawning breeding mud fish fry of the present invention, 27 ~ 35 grams of the parent loach average weight, build are even
Claim, female-male proportion 1：1.5, close loach 1500 is launched in each spawning and hatching pond, wherein female loach 600, male loach 900.
By adopting the above-described technical solution, close loach mating breeding is efficient.
A kind of method of artificial induced spawning breeding mud fish fry of the present invention, the ocyodinic is by 170 ~ 250 parts of S- of parts by volume
GnRHa, 28 ~ 40 parts of maleic acid dioxone, 10 ~ 27 parts of N- acetyl-B-D- glucosidase, 20 ~ 30 part of 17 20 β of α-bis-
Hydrocarbon progesterone, 50 ~ 62 parts of sodium chloride and 55 ~ 70 parts of deionized water compositions；Every close 0.3 milliliter of ocyodinic of loach injection.
By adopting the above-described technical solution, the spawning effect of ocyodinic is good, ovum rate of fertilization is high.
In conclusion by adopting the above-described technical solution, the beneficial effects of the invention are as follows：
1st, it is easy to operate, it hastens parturition efficient, mud fish fry output is high, and loach growth and development is good, regularity is high, disclosure satisfy that people
Work is cultivated largely to the demand of mud fish fry.
2nd, in most cost-saving range, ensure suitable breeding area, spawning effect is good, and ovum rate of fertilization is high, effectively
The phenomenon that close loach eats ovum grain is avoided, improves the output capacity of mud fish fry.
Specific embodiment
The present invention is described in detail below.
In order to make the purpose , technical scheme and advantage of the present invention be clearer, with reference to embodiments, to the present invention
It is further elaborated.It should be appreciated that the specific embodiments described herein are merely illustrative of the present invention, it is not used to
Limit the present invention.
Embodiment 1
A kind of method of artificial induced spawning breeding mud fish fry, includes the following steps,
Step 1 prepares spawning and hatching pond, and overflowing device is set in spawning and hatching bottom of pond portion；
Step 2 by water filling in spawning and hatching pond, by constant water temperature in spawning and hatching pond at 15 DEG C, after sterilizing 2 ~ 4h, is put
Pool wall is rinsed well after falling water, in setting several collection ovum collection seedling box, several oviposition nets and aerator in spawning and hatching pond, toward pond
Middle note clean water；
Step 3 selects the close loach of gonadal maturation, prepares suitable ocyodinic, is put into after close loach is injected ocyodinic
In oviposition net, aerator is opened；
Step 4 controls water temperature according to Effect time, waits all to pull close loach out after the completion of laying eggs, and oviposition net is kept to produce
In egg hatching pond；
Step 5, control water temperature is at 12 DEG C, hatching emergence, when mud fish fry can freely move about, carries out opening and feeds, fit
When collect mud fish fry cultivated.
Spawning and hatching pond is equipped with osculum, and the bottom of pond in spawning and hatching pond is tilted to osculum direction；Overflowing device includes phase
The drainpipe and water-level control apparatus of connection, water-level control apparatus include the height of water level adjustment portion being connected and gap, water
Position height adjusting part is connected with drainpipe, and height of water level adjustment portion is set to around osculum, the bottom in height of water level conciliation portion
It is equal with bottom of pond.For the specification in spawning and hatching pond to be 8 meters long, 2.5 meters wide, 0.5 meter high, the area in every mouthful of spawning and hatching pond is flat for 20
Square rice；Draining length of tube is more than pool wall thickness 10cm, caliber 7.5cm；Gap is apart from bottom of pond height 40cm；Height of water level tune
Solution portion setting height of water level is 40cm.Collect ovum collection seedling box and grow 3.8 meters, wide by 2.4,0.5 meter high, collection ovum collection seedling box quadrangle and Ji Luanji
The opening tether of seedling box tightens, and every mouthful of spawning and hatching pond is equipped with two mouthfuls of close eye net cages, and collection ovum collection seedling box is fabric by 80 mesh bolting silks
Into.Oviposition net is 4.2 meters long, 2.8 meters wide, is made of the nylon mesh sheet of 8 mesh, and two oviposition nets are equipped in every mouthful of spawning and hatching pond.
The oxygenation power of aerator is 40W in every mouthful of spawning and hatching pond.Collect ovum collection seedling box bottom contact spawning and hatching bottom of pond portion, quadrangle and
Upper edge is fixed on pool wall, pool inner water bit depth 40cm, and collection ovum collection seedling box upper edge is higher by water surface 10cm, collection ovum collection seedling box upper surface
Oviposition net is equipped with, the quadrangle and edge of net of laying eggs are higher by the water surface, net bottom and bottom of pond interval.Close 27 grams of loach average weight, build
It is well-balanced, female-male proportion 1：1.5, close loach 1500 is launched in each spawning and hatching pond, wherein female loach 600, male loach 900.
Ocyodinic is by 170 parts of S-GnRHa of parts by volume, 28 parts of maleic acid dioxone, 10 parts of N- acetyl-B-D- glucosidase, and 20
17 α of part, 20 β-bis- hydrocarbon progesterone, 50 parts of sodium chloride and 55 parts of deionized waters compositions；Every close 0.3 milliliter of ocyodinic of loach injection.
Survival rate 99% is educated in this batch output mud fish fry about 2,700,000, brooding time 6 days, mud fish fry throwing.
Embodiment 2
A kind of method of artificial induced spawning breeding mud fish fry, includes the following steps,
Step 1 prepares spawning and hatching pond, and overflowing device is set in spawning and hatching bottom of pond portion；
Step 2 by water filling in spawning and hatching pond, by constant water temperature in spawning and hatching pond at 25 DEG C, after sterilizing 2 ~ 4h, is put
Pool wall is rinsed well after falling water, in setting several collection ovum collection seedling box, several oviposition nets and aerator in spawning and hatching pond, toward pond
Middle note clean water；
Step 3 selects the close loach of gonadal maturation, prepares suitable ocyodinic, is put into after close loach is injected ocyodinic
In oviposition net, aerator is opened；
Step 4 controls water temperature according to Effect time, waits all to pull close loach out after the completion of laying eggs, and oviposition net is kept to produce
In egg hatching pond；
Step 5, control water temperature is at 25 DEG C, hatching emergence, when mud fish fry can freely move about, carries out opening and feeds, fit
When collect mud fish fry cultivated.
Spawning and hatching pond is equipped with osculum, and the bottom of pond in spawning and hatching pond is tilted to osculum direction；Overflowing device includes phase
The drainpipe and water-level control apparatus of connection, water-level control apparatus include the height of water level adjustment portion being connected and gap, water
Position height adjusting part is connected with drainpipe, and height of water level adjustment portion is set to around osculum, the bottom in height of water level conciliation portion
It is equal with bottom of pond.For the specification in spawning and hatching pond to be 8 meters long, 2.5 meters wide, 0.5 meter high, the area in every mouthful of spawning and hatching pond is flat for 20
Square rice；Draining length of tube is more than pool wall thickness 10cm, caliber 7.5cm；Gap is apart from bottom of pond height 40cm；Height of water level tune
Solution portion setting height of water level is 40cm.Collect ovum collection seedling box and grow 3.8 meters, wide by 2.4,0.5 meter high, collection ovum collection seedling box quadrangle and Ji Luanji
The opening tether of seedling box tightens, and every mouthful of spawning and hatching pond is equipped with two mouthfuls of close eye net cages, and collection ovum collection seedling box is fabric by 80 mesh bolting silks
Into.Oviposition net is 4.2 meters long, 2.8 meters wide, is made of the nylon mesh sheet of 8 mesh, and two oviposition nets are equipped in every mouthful of spawning and hatching pond.
The oxygenation power of aerator is 50W in every mouthful of spawning and hatching pond.Collect ovum collection seedling box bottom contact spawning and hatching bottom of pond portion, quadrangle and
Upper edge is fixed on pool wall, pool inner water bit depth 40cm, and collection ovum collection seedling box upper edge is higher by water surface 10cm, collection ovum collection seedling box upper surface
Oviposition net is equipped with, the quadrangle and edge of net of laying eggs are higher by the water surface, net bottom and bottom of pond interval.Close 35 grams of loach average weight, build
It is well-balanced, female-male proportion 1：1.5, close loach 1500 is launched in each spawning and hatching pond, wherein female loach 600, male loach 900.
Ocyodinic is by 250 parts of S-GnRHa of parts by volume, 40 parts of maleic acid dioxone, 27 parts of N- acetyl-B-D- glucosidase,
30 part of 17 20 β of α-bis- hydrocarbon progesterone, 62 parts of sodium chloride and 70 parts of deionized water compositions；Every close 0.3 milliliter of ocyodinic of loach injection.
Survival rate 99% is educated in this batch output mud fish fry about 2,300,000, brooding time 7 days, mud fish fry throwing.
Embodiment 3
A kind of method of artificial induced spawning breeding mud fish fry, includes the following steps,
Step 1 prepares spawning and hatching pond, and overflowing device is set in spawning and hatching bottom of pond portion；
Step 2 by water filling in spawning and hatching pond, by constant water temperature in spawning and hatching pond at 18 DEG C, after sterilizing 2 ~ 4h, is put
Pool wall is rinsed well after falling water, in setting several collection ovum collection seedling box, several oviposition nets and aerator in spawning and hatching pond, toward pond
Middle note clean water；
Step 3 selects the close loach of gonadal maturation, prepares suitable ocyodinic, is put into after close loach is injected ocyodinic
In oviposition net, aerator is opened；
Step 4 controls water temperature according to Effect time, waits all to pull close loach out after the completion of laying eggs, and oviposition net is kept to produce
In egg hatching pond；
Step 5, control water temperature is at 20 DEG C, hatching emergence, when mud fish fry can freely move about, carries out opening and feeds, fit
When collect mud fish fry cultivated.
Spawning and hatching pond is equipped with osculum, and the bottom of pond in spawning and hatching pond is tilted to osculum direction；Overflowing device includes phase
The drainpipe and water-level control apparatus of connection, water-level control apparatus include the height of water level adjustment portion being connected and gap, water
Position height adjusting part is connected with drainpipe, and height of water level adjustment portion is set to around osculum, the bottom in height of water level conciliation portion
It is equal with bottom of pond.For the specification in spawning and hatching pond to be 8 meters long, 2.5 meters wide, 0.5 meter high, the area in every mouthful of spawning and hatching pond is flat for 20
Square rice；Draining length of tube is more than pool wall thickness 10cm, caliber 7.5cm；Gap is apart from bottom of pond height 40cm；Height of water level tune
Solution portion setting height of water level is 40cm.Collect ovum collection seedling box and grow 3.8 meters, wide by 2.4,0.5 meter high, collection ovum collection seedling box quadrangle and Ji Luanji
The opening tether of seedling box tightens, and every mouthful of spawning and hatching pond is equipped with two mouthfuls of close eye net cages, and collection ovum collection seedling box is fabric by 80 mesh bolting silks
Into.Oviposition net is 4.2 meters long, 2.8 meters wide, is made of the nylon mesh sheet of 8 mesh, and two oviposition nets are equipped in every mouthful of spawning and hatching pond.
Oxygenation power >=40W of aerator in every mouthful of spawning and hatching pond.Collect ovum collection seedling box bottom contact spawning and hatching bottom of pond portion, quadrangle and
Upper edge is fixed on pool wall, pool inner water bit depth 40cm, and collection ovum collection seedling box upper edge is higher by water surface 10cm, collection ovum collection seedling box upper surface
Oviposition net is equipped with, the quadrangle and edge of net of laying eggs are higher by the water surface, net bottom and bottom of pond interval.Close 27 ~ 35 grams of loach average weight,
It is well-proportioned, female-male proportion 1：1.5, close loach 1500 is launched in each spawning and hatching pond, wherein female loach 600, male loach 900
Item.Ocyodinic is by 200 parts of S-GnRHa of parts by volume, 38 parts of maleic acid dioxone, 15 parts of N- acetyl-B-D- glucosidase
, 27 part of 17 20 β of α-bis- hydrocarbon progesterone, 54 parts of sodium chloride and 59 parts of deionized waters form；Every close 0.3 milliliter of ocyodinic of loach injection.
Survival rate 99% is educated in this batch output mud fish fry about 2,600,000, brooding time 6 days, mud fish fry throwing.
Embodiment 4
Spawning and hatching pond is cement pit, and placement overflowing water pipe in cement pit one end bottom intercepts a section length and compares pool wall thickness
More 10 centimetres, a diameter of 7.5 centimetres of PVC plastic pipe, the elbow of a same specification is set up in one end in its pond, is installed in
At osculum, make elbow mouth upwards and equal with bottom of pond, one section long 40 centimetres of pvc pipe is inserted on elbow, in this way when cement water
More than 40 centimetres, water can just overflow depth automatically, if desired drain water, need to only pull out the water pipe of insertion.Cement
Bottom of pond and pool wall smear real floating with cement, and bottom of pond is slightly tilted to osculum direction, can smoothly drain water during sharp clear pond.
The collection close eye net cage of ovum collection seedling is made using 80 mesh bolting silk cloth, oviposition net is made using 8 mesh nylon mesh sheets.
Spring gos up when temperature, and water temperature stability is at 18 DEG C, you can beginning loach, which is hastened parturition, breeds production.
The previous day hasten parturition by " iodine health " after cement pit topped up with water（The positive Industrial Co., Ltd.'s production in Chengdu three）Disinfection, flatly
20 square metres of 10 milliliters of cement pit use " iodine health ".Water after 2 hours is bled off and disposes close eye after being rinsed well with clear water by disinfection
Net cage, 20 square metres of ponds of a bite dispose two mouthfuls of close eye net cages, and net cage bottom is affixed on cement pit bottom and is pushed down with pebble to prevent net cage
Bottom floats, then net cage quadrangle and upper edge are fixed, it is desirable that net cage, which is paved, to be stretched, and then adds in clean water, 40 lis of water level depth
Rice, eye net cage upper edge close in this way are higher by 10 centimetres of the water surface, and the water of addition is cleaning underground water.Osculum is inserted with one section of 40 centimetres of height
Pvc pipe, if water level be more than 40 centimetres if can overflow automatically.
Then an oviposition net is spread on close eye net cage, it is desirable that oviposition net quadrangle and edge are higher by the water surface, and net bottom cannot
Bottom of pond is pasted, after throwing into the close loach oviposition in oviposition net in this way, ovum grain can be drained to from oviposition mesh in close eye net cage.Finally in pond
It is middle to launch four oxygenation sand heads.
The close loach of the close loach selection gonadal maturation of breeding, wherein female loach abdomen expands protrusion, gonopore turns up, in fresh
Red, the light ovum grain that abdomen is pressed to have water white transparency flow out；Male loach abdomen is soft, the long and narrow recess of gonopore, pinkiness, some energy
Squeeze out fubai color sperm.It is hastened parturition using continuous syringe to the injection of loach injection ocyodinic, per injection dosage is more accurate, and
Without special messenger inhale ocyodinic, can people's independent operation, injection operation speed is fast, than tradition with disposable syringe improve efficiency 10
Times or more.
Hastening parturition, it is preferable to carry out general afternoon, so that the next morning can observe oviposition situation.First male close loach is pulled out and is put
In absorbent towels, close loach body surface excessive moisture is sopped up, cotton gloves is then put on and close loach progress injection operation, injection is grasped with profit
Position is 1 centimetre of both sides before close loach abdomen cloacal aperture, and syringe needle is towards cephalad direction and loach body in 45 degree of angles, contact pin depth 0.2-
0.3 centimetre, every close loach injection is hastened parturition 0.3 milliliter of solution, and the close loach of hero after injection is put in oviposition net, in every oviposition net
Launch 450；Then female parent loach is injected in the same way, and the female parent loach after injection is equally put into oviposition net, by every oviposition
Female parent loach 300 is launched in net.Male and female parent loach is launched and finishes, and opens aerator, and the oxygenation time is set as booting 20 minutes, shuts down
10 minutes cycle operations.
When close loach injection ocyodinic to the time for reaching oviposition climax is known as oviposition effect, the length of Effect time is with planting loach
Maturity and water temperature it is closely related, the Effect time after close loach is hastened parturition is shown in Table 1
Table 1
| Water temperature（℃） | 20 | 23-25 | 26-27 | 28-32 |
| Effect time（Hour） | 18-20 | 12-14 | 10 | 6-8 |
Afternoon on the previous day hastens parturition, and the next morning parent loach lays eggs successively, observes mesh leakage of visible the laid eggs grain from oviposition net
To in following close eye net cage, until oviposition terminates substantially, oviposition mesh sheet is lifted all pull close loach out, be then still put into mesh sheet
Chi Zhong again takes out oviposition mesh sheet after hatching is emerged.
The brooding time of ovum grain is related to water temperature, when water temperature is up to 25 DEG C, can hatch emergence within 24 hours.Mud fish fry is just hatched
About 3.5 millimeters of Shi Quanchang, kiss end tool stick together device, and mud fish fry is all attached on close eye net cage bottom and net cage wall at this time.8 is small after hatching
When or so, seedling is about 4 millimeters, and schistostoma occurs, and bicker has 1 pair of bastem；The gill filament exposes outside the gill cover, forms external gill；Pectoral fin is gradual
Expand, whole body sparse melanin " acne point " shape transparent when at this moment mud fish fry is by just hatching occurs to the gradual blackening of body colour
, 33 hours after hatching, seedling grows 4.5 millimeters, and mouth lower jaw can be movable, and 2 pairs of palpuses occurs in bicker；Yolk bag reduces；External gill continues
Zhongchang：Pectoral fin can instigate back and forth, and body surface melanin increases.It hatches about 60 hours, seedling grows 5.5 millimeters, can simply move about；
When mud fish fry can freely move about, it should just carry out opening and feed, collect mud fish fry after opening in due course and launch to pond rearing.It raises
Material is by 37 parts of protein of mass parts, 16 parts of lysines, 18 parts of crude fat, 4 parts of calcium carbonate compositions, 1.3 parts of vitamin As, 0.5 part of phosphorus
Sour ferrous and 2.4 parts of trbasic zinc phosphates form, and feed is the expanded pellet feed of grain size 1mm.
After spawning and hatching pond often goes out a collection of mud fish fry, should all carry out disinfection cleaning, then proceed to that next group breeding is arranged to incubate
Change.
Survival rate 99% is educated in this batch output mud fish fry about 2,700,000, brooding time 7 days, mud fish fry throwing.
The foregoing is merely illustrative of the preferred embodiments of the present invention, is not intended to limit the invention, all essences in the present invention
All any modification, equivalent and improvement made within refreshing and principle etc., should all be included in the protection scope of the present invention.
Claims (9)
- A kind of 1. method of artificial induced spawning breeding mud fish fry, it is characterised in that include the following steps,Step 1 prepares spawning and hatching pond, and overflowing device is set in spawning and hatching bottom of pond portion；Step 2 by water filling in spawning and hatching pond, by constant water temperature in spawning and hatching pond at 15 ~ 25 DEG C, after sterilizing 2 ~ 4h, is bled off Pool wall is rinsed well after water, in setting several collection ovum collection seedling box, several oviposition nets and aerator in spawning and hatching pond, into pond Note clean water；Step 3 selects the close loach of gonadal maturation, prepares suitable ocyodinic, and oviposition is put into after close loach is injected ocyodinic In net, aerator is opened；The ocyodinic is by 170 ~ 250 parts of S-GnRHa of parts by volume, 28 ~ 40 parts of maleic acid dioxone, and 10 ~ 27 Part N-acetyl-β-D-glucosaminidase, 20 ~ 30 part of 17 20 β of α-bis- hydroxyprogesterone, 50 ~ 62 parts of sodium chloride and 55 ~ 70 parts go from Sub- water composition；Step 4 controls water temperature according to Effect time, waits all to pull close loach out after the completion of laying eggs, and oviposition net is kept to be incubated in oviposition Change in pond；Step 5, control water temperature is at 12 ~ 25 DEG C, hatching emergence, when mud fish fry can freely move about, carries out opening and feeds, fit When collect mud fish fry cultivated.
- 2. a kind of method of artificial induced spawning breeding mud fish fry as described in claim 1, it is characterised in that：The spawning and hatching pond Equipped with osculum, the bottom of pond in spawning and hatching pond is tilted to osculum direction；The overflowing device include the drainpipe that is connected and Water-level control apparatus, the water-level control apparatus include the height of water level adjustment portion being connected and gap, the height of water level Adjustment portion is connected with drainpipe, and the height of water level adjustment portion is set to around osculum, the bottom of the height of water level adjustment portion Portion is equal with bottom of pond.
- 3. a kind of method of artificial induced spawning breeding mud fish fry as claimed in claim 2, it is characterised in that：The spawning and hatching pond Specification to be 8 meters long, 2.5 meters wide, 0.5 meter high, the area in every mouthful of spawning and hatching pond is 20 square metres；The draining length of tube is big In pool wall thickness 10cm, caliber 7.5cm；The gap is apart from bottom of pond height 40cm；The height of water level adjustment portion setting Height of water level is 40cm.
- 4. a kind of method of artificial induced spawning breeding mud fish fry as described in claims 1 or 2 or 3, it is characterised in that：The collection ovum Collect seedling box grow 3.8 meters, it is wide by 2.4,0.5 meter high, it is described collection ovum collection seedling box quadrangle and collect ovum collection seedling box opening tether tighten, often Mouth spawning and hatching pond is equipped with two mouthfuls of close eye net cages, and the collection ovum collection seedling box is made of 80 mesh bolting silk cloth.
- 5. a kind of method of artificial induced spawning breeding mud fish fry as claimed in claim 4, it is characterised in that：The oviposition net length 4.2 meters, it is 2.8 meters wide, be made of the nylon mesh sheet of 8 mesh, in every mouthful of spawning and hatching pond be equipped with two oviposition nets.
- 6. a kind of method of artificial induced spawning breeding mud fish fry as described in claims 1 or 2 or 5, it is characterised in that：Described in every mouthful Oxygenation power >=40W of aerator in spawning and hatching pond.
- 7. a kind of method of artificial induced spawning breeding mud fish fry as claimed in claim 6, it is characterised in that：The collection ovum collection seedling box Bottom contact spawning and hatching bottom of pond portion, quadrangle and upper edge are fixed on pool wall, and pool inner water bit depth 40cm collects ovum collection seedling box upper edge Water surface 10cm is higher by, collection ovum collection seedling box upper surface is equipped with oviposition net, and the quadrangle and edge of the oviposition net are higher by the water surface, net bottom With bottom of pond interval.
- 8. a kind of method of artificial induced spawning breeding mud fish fry as described in claims 1 or 2 or 7, it is characterised in that：The parent loach 27 ~ 35 grams of average weight is well-proportioned, female-male proportion 1：1.5, close loach 1500 is launched in each spawning and hatching pond, wherein Female loach 600, male loach 900.
- 9. a kind of method of artificial induced spawning breeding mud fish fry as claimed in claim 8, it is characterised in that：Every close loach injection is urged Produce 0.3 milliliter of agent.
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| JPH08131014A (en) * | 1994-11-11 | 1996-05-28 | Masao Narita | Preparation of fertilized egg of loach |
| JP2006340656A (en) * | 2005-06-09 | 2006-12-21 | Hakusen Kogyo Kk | Culture method for loach |
| CN102599091B (en) * | 2012-03-26 | 2014-12-24 | 浙江海洋学院 | Hybrid propagation method |
| CN103109767A (en) * | 2013-03-08 | 2013-05-22 | 江苏省农业科学院宿迁农科所 | Loach fish fry artificial cultivation method |
| CN103960184B (en) * | 2014-04-30 | 2015-10-28 | 金华市苏香现代农业科技有限公司 | A kind of loach industrial artificial breeding improves the seedling-cultivating method of survival rate |
| CN104396821A (en) * | 2014-11-10 | 2015-03-11 | 余仁忠 | Loach fertility method |
| CN204393098U (en) * | 2015-01-04 | 2015-06-17 | 铜陵县博陵农业生态园 | Loach spawning and hatching integrated apparatus |
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