CN106942096A - A kind of many squamas shovel the artificial propagation breeding method of jaw fish - Google Patents

A kind of many squamas shovel the artificial propagation breeding method of jaw fish Download PDF

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Publication number
CN106942096A
CN106942096A CN201611091765.6A CN201611091765A CN106942096A CN 106942096 A CN106942096 A CN 106942096A CN 201611091765 A CN201611091765 A CN 201611091765A CN 106942096 A CN106942096 A CN 106942096A
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fish
water
pond
hatching
artificial
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田庆兵
郑宗林
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Chongqing Liangjiang Ecological Fishery Development Co Ltd
Southwest University
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Chongqing Liangjiang Ecological Fishery Development Co Ltd
Southwest University
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Publication of CN106942096A publication Critical patent/CN106942096A/en
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    • AHUMAN NECESSITIES
    • A01AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01KANIMAL HUSBANDRY; AVICULTURE; APICULTURE; PISCICULTURE; FISHING; REARING OR BREEDING ANIMALS, NOT OTHERWISE PROVIDED FOR; NEW BREEDS OF ANIMALS
    • A01K61/00Culture of aquatic animals
    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02ATECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
    • Y02A40/00Adaptation technologies in agriculture, forestry, livestock or agroalimentary production
    • Y02A40/80Adaptation technologies in agriculture, forestry, livestock or agroalimentary production in fisheries management
    • Y02A40/81Aquaculture, e.g. of fish

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  • Life Sciences & Earth Sciences (AREA)
  • Environmental Sciences (AREA)
  • Marine Sciences & Fisheries (AREA)
  • Zoology (AREA)
  • Animal Husbandry (AREA)
  • Biodiversity & Conservation Biology (AREA)
  • Farming Of Fish And Shellfish (AREA)

Abstract

The present invention provides the steps such as the artificial propagation breeding method that a kind of many squamas shovel jaw fish, including the antenatal cultivation of parent population, artificial induced spawning, artificial insemination, artificial incubation, fry rearing, nurture of fish fingerlings.Many squamas that the present invention is provided shovel the artificial propagation breeding method of jaw fish, can effectively cultivate many squama shovel jaw fishes, fill up the blank of artificial breeding technique.

Description

A kind of many squamas shovel the artificial propagation breeding method of jaw fish
Technical field
The artificial propagation breeding method of jaw fish is shoveled the present invention relates to cultural technique field, more particularly to a kind of many squamas.
Background technology
Many squama shovel jaw fishes (Varicorhinus macrolepis), category Cypriniformes, Cyprinidae, Barbinae, prominent kiss fish category, custom Claim money fish, the white first, red scale fish of the tip, stone mouthful fish, perch gravel substrate, the clear warm low, flow velocity of water be larger, 300-1500 meters of height above sea level Mountain stream water small stream.It is reported that many squama shovel jaw meat quality of fish are delicate, nutritious, medicinal health value is high, its DHA, EPA content point Not Wei 6.20%, 2.89%, be 48 times and 32 times of shark respectively, but at present its wild resource it is very deficient.
The content of the invention
It is an object of the invention to provide a kind of artificial propagation of many squama shovel jaw fishes and offspring seed cultivation method.
A kind of many squamas shovel the breeding method of jaw fish, including:
The antenatal cultivation of parent population, artificial induced spawning, artificial insemination, artificial incubation, fry rearing, nurture of fish fingerlings;Wherein, the parent The antenatal cultivation of fish includes:
(1) parent population stocking rate
Male dam puts in a suitable place to breed in well-behaved pond, and mu puts the female tail of 2000 tail of parent population -3000, gross mass 500kg-750kg in a suitable place to breed;Mu is put Support the tail of 1000 tail of many squamas shovel jaw fish-1500, gross mass 500kg-750kg, at the same raise together with 15-26cm silver carp, the tail of Variegated 250- 300 tails;
(2) stocking model
Parent population is cultivated in October last year or the 3 monthly income pool then, special pond;To enter sterilized with saline solution or potassium permanganate before the pool, side Method is:During more than 20 DEG C of water temperature, parent population is put into the liquor potassic permanganate that 10min or 20ppm is cleaned in 3%-4% saline solution Middle immersion 15min-20min;
(3) feeding method
When parent fish pond sets up feed table and tames and dociles food, more than 10 DEG C of water temperature can manually feeding, the day feeding volume of feed accounts for The 1% of fish body weight;15-20 DEG C of water temperature, accounts for the 2% of fish body weight;20-25 DEG C of water temperature, accounts for the 4%-5% of fish body weight, feeding volume can Suitably increased and decreased according to the situation of ingesting;Fed respectively when -6 during when -10 during every morning 8 and afternoon 5 the 40% of feeding total amount with 60%;
(4) water quality adjustment
Keep water quality pure and fresh, change water once every 7d-10d, each more than quantity of exchanged water 20cm, 10d-15d 10g/m3It is raw Lime slurrying full pool spilling head once, is laid eggs the previous moon, every 2d-3d baths once.
Further, method as described above, the artificial induced spawning includes:
(1) spawning inducing pool
Using the cement pit of miniflow water, depth of water 0.6m-0.8m, ㎡ -20 ㎡ of area 10;Sunshade is built on outdoor pond, is hidden Positive area coverage is 40%-60%;
(2) hasten parturition the time
In March to May, it is advisable with mid or late April, breeds 15 DEG C -25 DEG C of water temperature, it is 20 DEG C -22 DEG C suitably to breed water temperature;
(3) parent population selection and combo
Parent population requires that belly expands, and pitches visible ovary profile substantially, and handstand has ovary flow phenomenon, and gonopore is in red Color, hand groping for fish belly is soft and high resilience;It is 20 that artificial induced spawning and the male and female of insemination, which are matched,:1;
(4) oxytocic drug injection system
Using biphasic injection, the 1/3 of accumulated dose is injected for the first time, will according to second of water temperature height interval 12h-20h injections Remaining medicine has all been injected;Injection site is pectoral fin base portion, and injection hour hands are towards fish head direction angle at 45 °, and depth is according to fish Depending on the size of individual.
Further, method as described above, the Artificial insemination procedures include:Raun belly is cut off with scissors, is taken out Spermary, is put into mortar and grinds into white pulpous state, and female fish-egg is squeezed into ceramic bowl, is added the seminal fluid diluted through spermatozoa preservative fluid and is stirred 1 minute, then add the water of filtering to stir 2-3 minutes, embryonated egg is equably sprinkled upon on the fish nest that 60 mesh mesh sheet are made, or through de- Viscous processing, which is put into Lotic hatching device, hatches.
Further, method as described above, artificial incubation includes:
(1) hatchery facility
Using cement pit, ㎡ -20 ㎡ of area 10, pond depth 1m, depth of water 0.8m, bottom of pond is flat, and has gap, outdoor hatching Build sunshade;
(2) hatching pattern
Using concrete floor suspension hatching plate, micro- Lotic hatching uses inflator pump qi of chong channel ascending adversely during hatching;
(3) hatching density
Using cement pit suspension hatching plate hatching, every cubic metre of water body puts 8 × 104-10×104Grain insemination ovum;That is specification 90 × 50cm hatching plates embryonated egg 2 × 104-3×104Grain, every square metre of water body hangs 3 pieces;Unsticking Lotic hatching is every cubic metre of water body Put embryonated egg 3 × 105-5×105Grain;
(4) brooding time
Incubation temperature should be controlled within 28 DEG C.
Further, method as described above, the fry rearing includes:
(1) breeding density
Breeding density is 2 × 104-3×104Tail;
(2) bait throwing in and management
Fry opening can feed the fairy shrimp of artificial incubation, can also feed enough wheel animalcules, small branch angle;Feed preceding application 5% salt water sterilization 2-3min, while the debris inside application diddle-net filtering, removing;The bait of opening phase also needs mesh 0.4mm Screen filtration, remove the large-scale debris that swims.
Further, method as described above, nurture of fish fingerlings includes:
(1) facility is cultivated
Nurture of fish fingerlings facility is Tu Chi, and area is with 667 ㎡ -2000 ㎡, depth of water 0.8m-1.2m;
(2) fishpond is leveled
Every mu of pond carries out clear pond, sterilization by the consumption of 50kg quick limes;
(3) feed is cultivated
7d-8d after cleaning up the pond, with the muck of fermentation, mu applies 50kg-80kg, composite fertilizer or bio-fertilizer and cultivates water quality, typically applies Breeding fish fry occurs in linen wheel animalcule after fertile 3d-5d;
(4) breeding density
Fry breeding density is 150-200 tails/m3
(5) fertilising is with feeding intake
Behind pond under fry eel is used in first quarter moon when fry length is to 2m-3cm with composite fertilizer or bio-fertilizer spraying fertilizer 1-2 times Material or broken material add minced fillet to pinch agglomerating tame and docile food.
Beneficial effect:
Many squamas that the present invention is provided shovel the artificial propagation breeding method of jaw fish, can effectively cultivate many squama shovel jaw fishes, The blank of artificial breeding technique is filled up.
Embodiment
Describe presently filed embodiment in detail below in conjunction with embodiment, thereby to the application how application technology hand Section can fully understand and implement according to this to solve technical problem and reach the implementation process of technology effect.
1st, the source of parent population and selection
Collected by natural water bodies such as rivers, lake, reservoirs, also can select the common raun propagated artificially and milter (is forbidden Inbreeding offspring gives over to parent population).Many squamas shovel jaw fish as parent fish rearing detects body surface without wound without parasite, age at age 2 More than, more than raun total length 25cm, body weight is in more than 250g;More than milter total length 35cm, body weight is in more than 500g.
2nd, parent population is antenatal cultivates
2.1 culture ponds
Parent fish rearing pond should select water source compared with it is near, water quality is good, water injection is more convenient, environment relatively quiet place.Pond Preferably rectangle, it is desirable to which bottom of pond is flatter, bottom sludge is less or hard bottom, and ㎡ -3000 ㎡ of area 2000 are advisable, the depth of water In 1.2m-1.5m or so.
2.2 parent population stocking rates
Male dam puts in a suitable place to breed in well-behaved pond.Mu puts the female tail of 2000 tail of parent population -3000, about 500kg-750kg in a suitable place to breed;Mu puts many squamas in a suitable place to breed Shovel the tail of 1000 tail of jaw fish -1500, about 500kg-750kg.Suitably increase or decrease and put according to pond ecological environmental condition difference Support quantity;20cm or so silver carp, the tail of 250 tail of Variegated -300, the planktonic organism that ingests control pond water quality are raised together with simultaneously.
2.3 stocking models
Parent population should enter the pool in October last year or then or so March, and special pond is cultivated.Saline solution or potassium permanganate can be used by entering before the pool Sterilize, method is:During more than 20 DEG C of water temperature, parent population is put into the Gao Meng that 10min or 20ppm is cleaned in 3%-4% saline solution 15min-20min is soaked in sour potassium solution.The active situation of fish body should be kept a close eye on during soaking disinfection, leaching is flexibly grasped Parent population can be directly placed into ready culture pond after bubble time, sanitized.
2.4 raise with feeding
(1) fish feed standard
Compound feed used for fish answers the basic nutrition demand of many squamas shovel jaw fishes.
(2) feed species
Parent fish rearing must feed man-made feeds.Man-made feeds are that many squamas shovel jaw fish special compound feed and fish, shrimp, spiral shell freshwater mussel And the fish (meat) such as fresh animal internal organ is rotten.Artificial perfect compound feed protein content is more than 35%.
(3) feeding method
When parent fish pond sets up feed table and tames and dociles food, more than 10 DEG C of water temperature can manually feeding, the day feeding volume of feed accounts for The 1% of fish body weight;15-20 DEG C of water temperature, accounts for the 2% of fish body weight;20-25 DEG C of water temperature, accounts for the 4%-5% of fish body weight, feeding volume can Suitably increased and decreased according to the situation of ingesting.Fed respectively when -6 during when -10 during every morning 8 and afternoon 5 the 40% of feeding total amount with 60%;
2.5 management
(1) pool is patrolled
Early daily, evening is each once, observation weather, water quality and the active situation of parent population, makes a record, timely solution of pinpointing the problems Certainly.
(2) regulating water quality
Keep water quality pure and fresh, change water once every 7d-10d, each more than quantity of exchanged water 20cm, 10d-15d 10g/m3It is raw Lime slurrying full pool spilling head once, prevents that parent population raises the nose above water to breathe.Lay eggs the previous moon, every 2d-3d baths once.
(3) strengthen management
Anti-escape, antitheft, the anti-general pool.
(4) fish disease prevention and cure
Rely mainly on prevention, preventing and treating is combined.Will thoroughly be cleaned up the pond sterilization, and fingerling enters strict sterilization before pond, keep water quality pure and fresh, feed Fresh, agreeable to the taste, abundance, periodically improves water quality using quick lime.It was found that the timely symptomatic treatment of fish disease.Fishing medicine is using answering strict implement NY5071 regulation.In fish disease prevention and cure, it should not use and many squamas are shoveled with the fishing medicines such as sensitive metrifonate, the chrysanthemum lipid of jaw fish.
3. artificial induced spawning
3.1. spawning inducing pool
In cement pit using miniflow water, depth of water 0.6m-0.8m, ㎡ -20 ㎡ of area 10 can be taken on conditional outdoor pond Sunshade is built, sun shade product is 50% or so.
3.2. hasten parturition the time
In March to May, it is advisable with mid or late April.15 DEG C -25 DEG C of water temperature is bred, it is 20 DEG C -22 DEG C suitably to breed water temperature.
3.3. parent population selects and combo
Parent population requires that belly expands, and pitches visible ovary profile substantially, and handstand has ovary flow phenomenon, and gonopore is in red Color, hand groping for fish belly is soft and high resilience.
It is 20 that artificial induced spawning and the male and female of insemination, which are matched,:1.
3.4. oxytocic drug and dosage
Conventional oxytocic drug has fish human chorionic gonadtropin (HCG), fish luteotropin releasing hormone d-ala analog 2 (LRH-A2), pimozide DOM (DOM) and carp pituitary (PG).It can be used alone or as a mixture.Common drug The non-HCG 1000-2000IU of dosage add LRH-A210-12 μ g add 2-4 milligrams/kg of DOM.The dosage of raun is the half of raun. Drug dose can be adjusted according to gonad development situation.
3.5. injection system
Using biphasic injection, the 1/3 of accumulated dose is injected for the first time, will according to second of water temperature height interval 12h-20h injections Remaining medicine has all been injected.Injection site is pectoral fin base portion, and injection hour hands are towards fish head direction angle at 45 °, and depth is according to fish Depending on the size of individual.
3.6. Effect time
The factor such as Effect time and water temperature, parent population maturity, hormone kind and dosage and stimulation by running water is relevant, but mainly Factor is water temperature, and the Effect time under different water temperature conditions is referring to table 1.
The relation of the water temperature of table 1 and Effect time
Water temperature (DEG C) 20-21 21-22 22-23
Effect time (h) 18-30 20-24 11-13
4th, artificial insemination
Note parent population heat situation within 1-2 hours in estimated Effect time, checked once every 30min, when extruding raun Belly, when finding the ovum smooth outflow of energy, you can artificial insemination.Artificial insemination procedures:Raun belly is cut off with scissors, essence is taken out Nest, is put into mortar and grinds into white pulpous state.Female fish-egg is squeezed into ceramic bowl, adds and is diluted through spermatozoa preservative fluid (or physiological saline) Seminal fluid stir 1 minute, then add filtering water stir 2-3 minutes, embryonated egg is equably sprinkled upon to the fish that 60 mesh mesh sheet are made On nest, or through unsticking handle be put into Lotic hatching device hatch.
5. artificial incubation
5.1. hatchery facility
The conventional facility of hatching has cement pit, hatching barrel and incubation tank etc..Typically use cement pit, the ㎡ -20 of area 10 ㎡, pond depth 1m.Depth of water 0.8m, bottom of pond is flat, and has gap, and sunshade is built in outdoor hatching.
5.2. hatching pattern
Using concrete floor suspension hatching plate, micro- Lotic hatching uses inflator pump qi of chong channel ascending adversely during hatching.
5.3. hatching density
Using cement pit suspension hatching plate hatching, every cubic metre of water body puts 8 × 104-10×104Grain insemination ovum.That is specification 90 × 50cm hatching plates embryonated egg 2 × 104-3×104Grain, every square metre of water body hangs 3 pieces;Unsticking Lotic hatching is every cubic metre of water body Put embryonated egg 3 × 105-5×105Grain.
5.4. brooding time
The time of incubating oosperm membrane is related to hatching water temperature, and the incubation of membrane time is inversely proportional with water temperature height, but incubates Changing temperature should control within 28 DEG C.Water temperature is shown in Table 2 with brooding time relation.
The water temperature of table 2 and brooding time relation
Water temperature (DEG C) 20-21 22-23 24-25 25-26
Time (h) 74-78 70-72 62-64 58-60
5.5. hatching management
(1) situations such as should noting observing the running of hatchery facility, the development of change of water quality and embryonated egg during hatching at any time, Make a record.
(2) hatching early stage water exchange capacity wants more relatively large, to get the seminal fluid and ovum that are attached on embryonated egg express developed Nest liquid, it is ensured that water quality.Exchange water should be consistent with former water temperature.
(3) guarantee full pond is tried one's best during inflator pump qi of chong channel ascending adversely uniformly, dead angle is not stayed.
(4) unfertilized egg in hatchery that comes off is removed in time, and hatchery can be changed once in hatching mid-term by having ready conditions.
6. fry rearing
Fry rearing facility is cement pit, and area is 10 ㎡ -20 ㎡, and pond depth 1.0m-1.2m has adjustable spillway hole.Water Deep control is between 0.3m-0.8m.
6.1. breeding density
Fry after membrane, which can be stayed in former hatchery, to continue to cultivate, and also may move into fry pond cultivation.Breeding density be 2 × 104-3×104Tail.
6.2. bait throwing in and management
Fry opening can feed the fairy shrimp of artificial incubation, can also feed enough wheel animalcules, small-sized cladocera etc..Before feeding Using 5% salt water sterilization 2-3min.Debris inside application diddle-net filtering simultaneously, removing.The bait of opening phase also needs mesh 0.4mm screen filtration, removes the large-scale debris that swims.Regulating water quality is noted during cultivation, when fry ingests (opening) 3d Left and right (long 1cm of body or so), according to the growth of fry and density case, you can point pond moves into soil and cultivated.
7. nurture of fish fingerlings
7.1. facility is cultivated
Nurture of fish fingerlings facility is Tu Chi, and area is advisable with 667 ㎡ -2000 ㎡, depth of water 0.8m-1.2m.
7.2. the preparation before putting in a suitable place to breed
(1) fishpond is leveled
Every mu of pond carries out clear pond, sterilization by the consumption of 50kg quick limes.
(2) feed is cultivated
7d-8d after cleaning up the pond, cultivates water quality with the muck (mu applies 50kg-80kg) of fermentation, composite fertilizer or bio-fertilizer, typically applies Breeding fish fry occurs in linen wheel animalcule after fertile 3d-5d (the high 2d-3d of water temperature), notes feed palatability.
7.3. breeding density
Fry breeding density is 150-200 tails/m3
7.4. apply fertilizer and feed intake
Can 1-2 times with composite fertilizer or bio-fertilizer (high protein fertilizer) spraying fertilizer, fry length to 2m- in first quarter moon behind pond under fry Minced fillet is added to pinch agglomerating tame and docile food with eel material or broken material during 3cm.Man-made feeds will be thrown on feed table (frame).
7.5. daily management
Answered and time-division pond when fry grows to more than 3cm (summer flower), continue to cultivate extensive fingerling or directly carry out adult fish Cultivation.The breeding density for cultivating large size fingerling is 50,000 tail -6, ten thousand tails/mu, and the breeding density of cultivation adult fish is 10,000 tails -1.2 ten thousand Tail/mu.Feed shovels jaw fish special compound feed from many squamas.
7.6. fish disease prevention and cure
(1) fish disease prevention and cure is to put prevention first, and often bath keeps water quality pure and fresh, prevents and treats anoxic.
(2) find that fish disease should be treated in time, fry, nurture of fish fingerlings stage Common Diseases have bacteriosis (bleeding, ascites Deng) and parasitic (Trichodina, Dactylogyrus etc.), can (car refers to conventional sterilization medicine (sterilized red, golden iodine or chlorine etc.) and insecticide Only, worm for fishing is clear etc.) treated.
(1) use of fishing medicine meets the medicine of national Specification.
(2) thoroughly clean up the pond, strict sterilization.
(3) it must sterilize, be soaked with 15%-20% potassium permanganate or 20ppm10% PVP-Is during fingerling stocking 15min-20min。
(4) holding water quality is pure and fresh, and feed is fresh, agreeable to the taste, abundance.
(5) fish disease season occurred frequently is monthly splashed with chlorine dioxide and sterilized 1-2 times, with quicklime slurrying float 1 time.Net cage is used Bleaching powder or the ferrous mixture (5 of copper sulphate:2) hanging bag a, week is changed 1 time.1.5% allicin is added in feed stirs food simultaneously Feed, even feed 3d-4d.
(6) adult fish culture stage common fish disease is Trichodina, Dactylogyrus, oblique tube insect, hemorrhage, enteritis disease.Should be according to tool Body situation symptomatic treatment.Prevention and controls are shown in Table 3.
The common fish disease treatment method of table 3
Some preferred embodiments of the present invention have shown and described in described above, but as previously described, it should be understood that the present invention Be not limited to form disclosed herein, be not to be taken as the exclusion to other embodiment, and available for various other combinations, Modification and environment, and above-mentioned teaching or the technology or knowledge of association area can be passed through in invention contemplated scope described herein It is modified., then all should be in this hair and the change and change that those skilled in the art are carried out do not depart from the spirit and scope of the present invention In the protection domain of bright appended claims.

Claims (6)

1. a kind of many squamas shovel the artificial propagation breeding method of jaw fish, it is characterised in that including:
The antenatal cultivation of parent population, artificial induced spawning, artificial insemination, artificial incubation, fry rearing, nurture of fish fingerlings;Wherein, the parent population production Preceding cultivation includes:
(1) parent population stocking rate
Male dam puts in a suitable place to breed in well-behaved pond, and mu puts the female tail of 2000 tail of parent population -3000, gross mass 500kg-750kg in a suitable place to breed;Mu puts many squamas in a suitable place to breed Shovel the tail of 1000 tail of jaw fish -1500, gross mass 500kg-750kg, while raising together with 15-26cm silver carp, the tail of 250 tail of Variegated -300;
(2) stocking model
Parent population is cultivated in October last year or the 3 monthly income pool then, special pond;To enter sterilized with saline solution or potassium permanganate before the pool, method is: During more than 20 DEG C of water temperature, parent population is put into the liquor potassic permanganate that 10min or 20ppm is cleaned in 3%-4% saline solution and soaked Steep 15min-20min;
(3) feeding method
When parent fish pond sets up feed table and tames and dociles food, more than 10 DEG C of water temperature can manually feeding, the day feeding volume of feed accounts for fish body The 1% of weight;15-20 DEG C of water temperature, accounts for the 2% of fish body weight;20-25 DEG C of water temperature, accounts for the 4%-5% of fish body weight, feeding volume can basis Situation of ingesting suitably increases and decreases;The 40% and 60% of feeding total amount is fed when -6 during when -10 during every morning 8 and afternoon 5 respectively;
(4) water quality adjustment
Keep water quality pure and fresh, change water once every 7d-10d, each more than quantity of exchanged water 20cm, 10d-15d 10g/m3Quick lime Starch full pool spilling head once, lay eggs the previous moon, every 2d-3d baths once.
2. according to the method described in claim 1, it is characterised in that the artificial induced spawning includes:
(1) spawning inducing pool
Using the cement pit of miniflow water, depth of water 0.6m-0.8m, ㎡ -20 ㎡ of area 10;Sunshade is built on outdoor pond, sunshade is covered Capping product is 40%-60%;
(2) hasten parturition the time
In March to May, it is advisable with mid or late April, breeds 15 DEG C -25 DEG C of water temperature, it is 20 DEG C -22 DEG C suitably to breed water temperature;
(3) parent population selection and combo
Parent population requires that belly expands, and pitches visible ovary profile substantially, handstand has ovary flow phenomenon, and gonopore takes on a red color, hand Groping for fish belly is soft and high resilience;It is 20 that artificial induced spawning and the male and female of insemination, which are matched,:1;
(4) oxytocic drug injection system
Using biphasic injection, the 1/3 of accumulated dose is injected for the first time, according to second of water temperature height interval 12h-20h injections, by residue Medicine all injected;Injection site is pectoral fin base portion, and injection hour hands are towards fish head direction angle at 45 °, and depth is according to fish individual Size depending on.
3. according to the method described in claim 1, it is characterised in that the Artificial insemination procedures include:Raun is cut off with scissors Belly, takes out spermary, is put into mortar and grinds into white pulpous state, female fish-egg is squeezed into ceramic bowl, and addition dilutes through spermatozoa preservative fluid Seminal fluid stir 1 minute, then add filtering water stir 2-3 minutes, embryonated egg is equably sprinkled upon to the fish that 60 mesh mesh sheet are made On nest, or through unsticking handle be put into Lotic hatching device hatch.
4. according to the method described in claim 1, it is characterised in that artificial incubation includes:
(1) hatchery facility
Using cement pit, ㎡ -20 ㎡ of area 10, pond depth 1m, depth of water 0.8m, bottom of pond is flat, and has gap, and outdoor hatching is built Sunshade;
(2) hatching pattern
Using concrete floor suspension hatching plate, micro- Lotic hatching uses inflator pump qi of chong channel ascending adversely during hatching;
(3) hatching density
Using cement pit suspension hatching plate hatching, every cubic metre of water body puts 8 × 104-10×104Grain insemination ovum;I.e. specification 90 × 50cm hatching plates embryonated egg 2 × 104-3×104Grain, every square metre of water body hangs 3 pieces;Unsticking Lotic hatching is put for every cubic metre of water body Embryonated egg 3 × 105-5×105Grain;
(4) brooding time
Incubation temperature should be controlled within 28 DEG C.
5. according to the method described in claim 1, it is characterised in that the fry rearing includes:
(1) breeding density
Breeding density is 2 × 104-3×104Tail;
(2) bait throwing in and management
Fry opening can feed the fairy shrimp of artificial incubation, can also feed enough wheel animalcules, small branch angle;5% is applied before feeding Salt water sterilization 2-3min, while the debris inside application diddle-net filtering, removing;The bait of opening phase also needs mesh 0.4mm's Screen filtration, removes the large-scale debris that swims.
6. according to the method described in claim 1, it is characterised in that nurture of fish fingerlings includes:
(1) facility is cultivated
Nurture of fish fingerlings facility is Tu Chi, and area is with 667 ㎡ -2000 ㎡, depth of water 0.8m-1.2m;
(2) fishpond is leveled
Every mu of pond carries out clear pond, sterilization by the consumption of 50kg quick limes;
(3) feed is cultivated
7d-8d after cleaning up the pond, with the muck of fermentation, mu applies 50kg-80kg, composite fertilizer or bio-fertilizer and cultivates water quality, and typically apply fertilizer 3d- Breeding fish fry occurs in linen wheel animalcule after 5d;
(4) breeding density
Fry breeding density is 150-200 tails/m3
(5) fertilising is with feeding intake
With composite fertilizer or bio-fertilizer spraying fertilizer 1-2 times in first quarter moon behind pond under fry, fry length to during 2m-3cm with eel material or Broken material adds minced fillet to pinch agglomerating tame and docile food.
CN201611091765.6A 2016-12-01 2016-12-01 A kind of many squamas shovel the artificial propagation breeding method of jaw fish Pending CN106942096A (en)

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Publication number Priority date Publication date Assignee Title
CN107258629A (en) * 2017-08-18 2017-10-20 西南大学 It is a kind of to improve the method that many squamas shovel jaw artificial propagation fish rate of fertilization
CN107372225A (en) * 2017-08-30 2017-11-24 浙江省淡水水产研究所 The artificial breeding method of jaw fish is shoveled in Taiwan
CN107396861A (en) * 2017-08-18 2017-11-28 西南大学 A kind of method of the more squama shovel jaw fish artificial induced spawnings in southwest
CN110235818A (en) * 2019-07-10 2019-09-17 武汉中科瑞华生态科技股份有限公司 A kind of breeding method of preceding fin Triplophysa seed
CN116287289A (en) * 2023-01-09 2023-06-23 中国长江三峡集团有限公司中华鲟研究所 Identification method of white turtle germplasm and application of white turtle germplasm identification method in polyculture method of white turtle, soft-thorn nojirimi fish and red eye trout

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CN105746398A (en) * 2016-03-04 2016-07-13 镇坪县天源生态养殖有限公司 Hatching method for fries of scaphes macrolepis

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Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107258629A (en) * 2017-08-18 2017-10-20 西南大学 It is a kind of to improve the method that many squamas shovel jaw artificial propagation fish rate of fertilization
CN107396861A (en) * 2017-08-18 2017-11-28 西南大学 A kind of method of the more squama shovel jaw fish artificial induced spawnings in southwest
CN107372225A (en) * 2017-08-30 2017-11-24 浙江省淡水水产研究所 The artificial breeding method of jaw fish is shoveled in Taiwan
CN110235818A (en) * 2019-07-10 2019-09-17 武汉中科瑞华生态科技股份有限公司 A kind of breeding method of preceding fin Triplophysa seed
CN110235818B (en) * 2019-07-10 2021-09-14 大唐观音岩水电开发有限公司 Method for cultivating loach fry in skeg plateau
CN116287289A (en) * 2023-01-09 2023-06-23 中国长江三峡集团有限公司中华鲟研究所 Identification method of white turtle germplasm and application of white turtle germplasm identification method in polyculture method of white turtle, soft-thorn nojirimi fish and red eye trout
CN116287289B (en) * 2023-01-09 2023-10-13 中国长江三峡集团有限公司中华鲟研究所 Identification method of white turtle germplasm and application of white turtle germplasm identification method in polyculture method of white turtle, soft-thorn nojirimi fish and red eye trout

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Application publication date: 20170714