CN103548735B - Grouper fry propagation method - Google Patents

Grouper fry propagation method Download PDF

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Publication number
CN103548735B
CN103548735B CN201310527708.8A CN201310527708A CN103548735B CN 103548735 B CN103548735 B CN 103548735B CN 201310527708 A CN201310527708 A CN 201310527708A CN 103548735 B CN103548735 B CN 103548735B
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Prior art keywords
fry
fish
grouper
parent population
feed
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CN201310527708.8A
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CN103548735A (en
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徐梅英
王海玲
徐佳晶
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Zhejiang Dahaiyang Science And Technology Co Ltd
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Zhejiang Ocean University ZJOU
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    • 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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Abstract

The invention discloses a grouper fry propagation method, which belongs to the technical field of marine culture. The grouper fry propagation method comprises the following steps: (1) selecting parent fish; (2) breeding the parent fish; (3) collecting fertilized ova; (4) manually regulating and controlling the incubation of the fertilized ova; (5) manually regulating and controlling the breed of fry, advanced fry and juvenile fish. The method is rational in design and has strong operability; by adding Vc, VE and compound traditional Chinese medicine immunopotentiator in a feed fed in a parent fish culture process, the potential disease in the bodies of the parent fish can be prevented, the immunologic functions of the bodies of the parent fish are enhanced, and mature gonad development of the parent fish is promoted, so that the fish naturally lay eggs, and meanwhile, the quality of the eggs and the semen is improved; by manually regulating and controlling the incubation of the fertilized eggs and the culture of the fry, the advanced fry and the juvenile fish, stable and large-scale fry are formed. According to the method, the fertilized eggs reach over 97 percent, the incubation rate reaches over 90 percent, and the survival rate reaches over 2.1 percent.

Description

Grouper fry propagation method
Technical field
The invention belongs to mariculture technology field, be specifically related to grouper fry propagation method.
background technology
Grouper epinephelubelong to Perciformes, Anabantoidei , Lv section, Epinephelus.All having distribution in subtropics, the whole world and Tropical Ocean Area, is important marine fish.Grouper has that fast growth, feed coefficient are low, economic worth advantages of higher, is high protein, low-fat first-class edible fishes, has the fish of breeding prospect under being considered to intensive culture condition most.Grouper is nutritious, and fine and tender taste is pure white, similar chicken, have the title of " extra large chicken ", is well received by consumers.Simultaneously grouper is also one of maximum seafood fish of artificial propagation and seedling growing process difficulty, and at present owing to cultivating required grouper seedling famine, the grouper mass rearing researching and developing scale is necessary very much.
Summary of the invention
For problems of the prior art, the object of the invention is providing a kind of grouper fry propagation method.
The present invention is realized by the following technical programs:
Described grouper fry propagation method, is characterized in that comprising following steps:
1) selection of parent population
Select from the fish body that natural waters is caught physique stalwartness, reaction quick, without deformity, body surface is intact the wounded as parent population, wherein raun body weight 600-800g/ tail, milter body weight is more than or equal to 1800g/ tail, and male and female parent population is arranged in pairs or groups in the ratio of 1:2;
2) cultivation of parent population
Grouper parent population good for combo is supported temporarily in indoor culture pond, prenatal nutrition strengthening and environment conditioning are carried out to parent population, impel its natural spawning, obtain fertilized egg;
Described prenatal nutrition strengthening, is with fresh small fish for bait, adds Vc, 1-2%V of accounting for bait weight 2-3% e,3-4% seawater compound Chinese herbal medicine immunopotentiator for fish, throws something and feeds twice every day, day feeding volume be the 3.5-4.5% of parent population body weight; Described parent population environment conditioning refers to cultivates pond water temperature 25 DEG C ~ 26 DEG C, seawater salinity 25 ~ 35, PH8.0 ~ 8.3, and cultivating pond water surface intensity of illumination is 3500-4500Lx, grouper is carried out to the stimulation by running water 20 ~ 30 minutes of 43-48 liter/min simultaneously;
3) fertilized egg is collected
The egg collecting groove cultivated in pond is utilized to collect fertilized egg;
4) artificial regulatory incubating oosperm
Fertilized egg be positioned over and cultivate in pond, controlling to cultivate pond water temperature is 25.5 ~ 26 DEG C, seawater salinity 28 ~ 32, and hatch under pH value 8.1 ~ 8.2, micro-venting condition, water-soluble oxygen amount is more than or equal to 6mg/L;
5) artificial regulatory larval and juvenile fish is cultivated
Described artificial regulatory larval and juvenile fish is cultivated, and refer to water temperature 25 ~ 26 DEG C, salinity 29 ~ 31, pH value 8.1 ~ 8.2, aeration quantity is changed from small to big, day quantity of exchanged water be 27%-32% alevin stage, postlarva phase 55%-60%, young stage 80%-90%;
2-3 days after seedling incubation of membrane start open-mouthed bait of throwing something and feeding, and open-mouthed bait is that shellfish larvae and sea urchin egg mix in the ratio of 1:1, and evenly splash, throw something and feed every day four times, each feeding volume is 8-12g/m 3, throw something and feed 2-3 days;
From the 4th day of bait of throwing something and feeding, start to throw something and feed wheel animalcule and copepoda nauplius were thrown something and fed in the ratio of 4:1, and daily ration, feeding quantity is to maintain the density of wheel animalcule in water body for 12000-18000/L, two weeks of throwing something and feeding;
Throw something and feed after fry 20 age in days copepoda and live large halogen worm, feeding volume maintains 1500 ~ 1800/L with overall food density;
After fry grows to 4 ~ 5 ㎝, start throw something and feed shrimp and manufactured feed, ratio both it is 5:3, throws something and feeds every day 2 times, and feeding volume is that the concentrated food of robbing of fry stops.
Described grouper fry propagation method, is characterized in that step 2) described in Chinese herbal medicine immunopotentiator by berberine: honeysuckle: the capsule of weeping forsythia: Radix Isatidis: garlic: the fleece-flower root: Radix Glycyrrhizae is that 2 ~ 3:1 ~ 2:0.5 ~ 1:0.4 ~ 0.8:0.5 ~ 1:0.2 ~ 0.5:0.3 ~ 0.8 is mixed to get.
Described grouper fry propagation method, is characterized in that in step 4), micro-inflation refers at most at 12-15L/m per hour 3.
Described grouper fry propagation method, to is characterized in that in step 5) that aeration quantity is changed from small to big and refers to 15L/m per hour 3increase to 45L/m per hour gradually 3.
Described grouper fry propagation method, is characterized in that the manufactured feed described in step 5) is by dregs of beans: corn flour: flour: dusty yeast: cod-liver oil: shrimp head powder: shitosan: earthworm powder: yellow mealworm powder is that 4 ~ 5:2 ~ 3:1 ~ 2:0.5 ~ 0.8:3 ~ 4:1.5 ~ 3.5:1 ~ 2:0.5 ~ 1.5:0.5 ~ 1.5 mixing is obtained.
The inventive method is reasonable in design, workable, adds Vc, V by the bait of throwing something and feeding in parent fish rearing process eand Chinese herbal medicine immunopotentiator, disease potential in parent population fish body can be prevented, strengthen the immunologic function of parent population fish body, impel parent population gonadal maturation, make it natural spawning, improve the quality of ovum grain and seminal fluid simultaneously; Cultivated by artificial regulatory incubating oosperm and larval and juvenile fish, form seed that is stable, batch, by the inventive method, fertilized egg reaches more than 97%, and incubation rate reaches more than 90%, and survival rate is to more than 2.1%.
Embodiment
By following specific embodiment, the invention will be further described.
Embodiment
1) selection of parent population
Select from the fish body that natural waters is caught physique stalwartness, reaction quick, without deformity, body surface is intact the wounded as parent population, wherein raun body weight 600-800g/ tail, milter body weight is 1800g/ tail at least, and male and female parent population is arranged in pairs or groups in the ratio of 1:2;
2) cultivation of parent population
Grouper parent population good for combo is supported temporarily in indoor culture pond, control to cultivate pond water temperature 25 DEG C, 25.5 DEG C or 26 DEG C, control seawater salinity 25, 30 or 35, control pH value 8.0, 8.1 or 8.3, control to cultivate pond water surface intensity of illumination 3500 Lx, 4000 Lx or 4500 Lx, 43 are carried out to grouper simultaneously, the stimulation by running water 20 of 45 or 48 liters/min, 25 or 30 minutes, support temporarily every day period and twice prenatal nutrition strengthening is carried out to parent population bait of throwing something and feeding, day feeding volume is 3.5% of parent population body weight, 4% or 4.5%, bait is fresh small fish, add the Vc accounting for bait weight 2-3% simultaneously, 1-2%V e,3-4% seawater compound Chinese herbal medicine immunopotentiator for fish, this Chinese herbal medicine immunopotentiator is by berberine: honeysuckle: the capsule of weeping forsythia: Radix Isatidis: garlic: the fleece-flower root: Radix Glycyrrhizae is that 2:1.5:0.5:0.4:1:0.5:0.3 is mixed to get, or by berberine: honeysuckle: the capsule of weeping forsythia: Radix Isatidis: garlic: the fleece-flower root: Radix Glycyrrhizae is that 2.5:1:0.8:0.8:0.5:0.2:0.8 is mixed to get, or by berberine: honeysuckle: the capsule of weeping forsythia: Radix Isatidis: garlic: the fleece-flower root: Radix Glycyrrhizae is that 3:2:1:0.6:0.7:0.3:0.5 is mixed to get, the method is adopted to carry out prenatal nutrition strengthening and environment conditioning to parent population, impel natural spawning, obtain fertilized egg,
3) fertilized egg is collected
The egg collecting groove cultivated in pond is utilized to collect fertilized egg;
4) artificial regulatory incubating oosperm
Fertilized egg be positioned over and cultivate in pond, controlling to cultivate pond water temperature is 25.5,25.8 or 26 DEG C, and seawater salinity 28,30 or 32, pH value 8.1 or 8.2 is 12 L/m per hour in aeration quantity 3, 13.5 L/m 3or 15L/m 3micro-venting condition under hatch, water-soluble oxygen amount is more than or equal to 6mg/L;
5) artificial regulatory larval and juvenile fish is cultivated
Artificial regulatory larval and juvenile fish is cultivated, and controls to cultivate pond water temperature 25,25.5 or 26 DEG C, and salinity 29,30 or 31, pH value 8.1 or 8.2, aeration quantity is 15L/m per hour 3increase to 45L/m per hour gradually 3, day quantity of exchanged water be alevin stage 27%, 30% or 32%, postlarva phase 55%, 58% or 60%, young stage 80%, 85% or 90%; 2-3 days after seedling seedling incubation of membrane start open-mouthed bait of throwing something and feeding, and open-mouthed bait is that shellfish larvae and sea urchin egg mix in the ratio of 1:1, and evenly splash, throw something and feed every day four times, each feeding volume is respectively 12g/m 3, 10g/m 3, 8g/m 3, 9g/m 3, throw something and feed two days or three days; From the 4th day of bait of throwing something and feeding, start to throw something and feed wheel animalcule and copepoda nauplius were thrown something and fed in the ratio of 4:1, and daily ration, feeding quantity is to maintain the density of wheel animalcule in water body for 12000-18000/L, two weeks of throwing something and feeding; Throw something and feed after fry 20 age in days copepoda and live large halogen worm, feeding volume maintains 1500 ~ 1800/L with overall food density; After fry grows to 4 ~ 5 ㎝, start throw something and feed shrimp and manufactured feed, ratio both it is 5:3, throws something and feeds every day 2 times, and feeding volume is that the concentrated food of robbing of fry stops.This manufactured feed is by dregs of beans: corn flour: flour: dusty yeast: cod-liver oil: shrimp head powder: shitosan: earthworm powder: yellow mealworm powder is that 4:3:1:0.8:3:2.5:1.5:1:0.5 mixing is obtained, or by dregs of beans: corn flour: flour: dusty yeast: cod-liver oil: shrimp head powder: shitosan: earthworm powder: yellow mealworm powder is that 4.5:2.5:1.5:0.5:4:3.5:2:1.5:1 mixing is obtained, or by dregs of beans: corn flour: flour: dusty yeast: cod-liver oil: shrimp head powder: shitosan: earthworm powder: yellow mealworm powder is that 5:2:2:0.7:3.5:1.5:1:0.5:1.5 mixing is obtained.
The concrete grammar adopting this to invent in 2012 to female grouper 1500, male grouper 3000 carries out cultivating, mating, reproduction test, last fertilized egg reaches more than 97%, and incubation rate reaches more than 90%, and survival rate is to more than 2.1%.

Claims (5)

1. grouper fry propagation method, is characterized in that comprising following steps:
1) selection of parent population
Select from the fish body that natural waters is caught physique stalwartness, reaction quick, without deformity, body surface is intact the wounded as parent population, wherein raun body weight 600-800g/ tail, milter body weight is more than or equal to 1800g/ tail, and male and female parent population is arranged in pairs or groups in the ratio of 1:2;
2) cultivation of parent population
Grouper parent population good for combo is supported temporarily in indoor culture pond, prenatal nutrition strengthening and environment conditioning are carried out to parent population, impel its natural spawning, obtain fertilized egg;
Described prenatal nutrition strengthening, is with fresh small fish for bait, adds Vc, 1-2%V of accounting for bait weight 2-3% e, 3-4% seawater compound Chinese herbal medicine immunopotentiator for fish, throw something and feed twice every day, day feeding volume be the 3.5-4.5% of parent population body weight; Described parent population environment conditioning refers to cultivates pond water temperature 25 DEG C ~ 26 DEG C, seawater salinity 25 ~ 35, PH8.0 ~ 8.3, and cultivating pond water surface intensity of illumination is 3500-4500Lx, grouper is carried out to the stimulation by running water 20 ~ 30 minutes of 43-48 liter/min simultaneously;
3) fertilized egg is collected
The egg collecting groove cultivated in pond is utilized to collect fertilized egg;
4) artificial regulatory incubating oosperm
Fertilized egg be positioned over and cultivate in pond, controlling to cultivate pond water temperature is 25.5 ~ 26 DEG C, seawater salinity 28 ~ 32, and hatch under pH value 8.1 ~ 8.2, micro-venting condition, water-soluble oxygen amount is more than or equal to 6mg/L;
5) artificial regulatory larval and juvenile fish is cultivated
Described artificial regulatory larval and juvenile fish is cultivated, and refer to water temperature 25 ~ 26 DEG C, salinity 29 ~ 31, pH value 8.1 ~ 8.2, aeration quantity is changed from small to big, day quantity of exchanged water be 27%-32% alevin stage, postlarva phase 55%-60%, young stage 80%-90%;
2-3 days after seedling incubation of membrane start open-mouthed bait of throwing something and feeding, and open-mouthed bait is that shellfish larvae and sea urchin egg mix in the ratio of 1:1, and evenly splash, throw something and feed every day four times, each feeding volume is 8-12g/m 3, throw something and feed 2-3 days;
From the 4th day of bait of throwing something and feeding, start throw something and feed wheel animalcule and copepoda nauplius, wheel animalcule and copepoda nauplius are thrown something and fed in the ratio of 4:1, and daily ration, feeding quantity is to maintain the density of wheel animalcule in water body for 12000-18000/L, two weeks of throwing something and feeding;
Throw something and feed after fry 20 age in days copepoda and live large halogen worm, feeding volume maintains 1500 ~ 1800/L with overall food density;
After fry grows to 4 ~ 5 ㎝, start throw something and feed shrimp and manufactured feed, ratio both it is 5:3, throws something and feeds every day 2 times, and feeding volume is that the concentrated food of robbing of fry stops.
2. grouper fry propagation method according to claim 1, is characterized in that step 2) described in Chinese herbal medicine immunopotentiator by berberine: honeysuckle: the capsule of weeping forsythia: Radix Isatidis: garlic: the fleece-flower root: Radix Glycyrrhizae is that 2 ~ 3:1 ~ 2:0.5 ~ 1:0.4 ~ 0.8:0.5 ~ 1:0.2 ~ 0.5:0.3 ~ 0.8 is mixed to get.
3. grouper fry propagation method according to claim 1, is characterized in that in step 4), micro-inflation refers to that aeration quantity is at 12-15L/m per hour 3.
4. grouper fry propagation method according to claim 1, to is characterized in that in step 5) that aeration quantity is changed from small to big and refers to 15L/m per hour 3increase to 45L/m per hour gradually 3.
5. grouper fry propagation method according to claim 1, is characterized in that the manufactured feed described in step 5) is by dregs of beans: corn flour: flour: dusty yeast: cod-liver oil: shrimp head powder: shitosan: earthworm powder: yellow mealworm powder is that 4 ~ 5:2 ~ 3:1 ~ 2:0.5 ~ 0.8:3 ~ 4:1.5 ~ 3.5:1 ~ 2:0.5 ~ 1.5:0.5 ~ 1.5 mixing is obtained.
CN201310527708.8A 2013-10-31 2013-10-31 Grouper fry propagation method Expired - Fee Related CN103548735B (en)

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CN104905033B (en) * 2015-05-22 2018-10-02 珠海海龙生物科技有限公司 A kind of largemouth bass fry mixed feed
CN105409855A (en) * 2015-12-16 2016-03-23 宜章洪成特种水产繁育场 Fry culturing method
CN105746399A (en) * 2016-03-07 2016-07-13 五河县金满塘生态种养殖家庭农场 Crucian breeding quality improvement method
CN110402857B (en) * 2019-08-30 2021-12-03 三亚福联水产发展有限公司 Rapid propagation method for grouper
CN111183931A (en) * 2020-02-25 2020-05-22 海南晨海水产有限公司 Efficient outdoor ecological pond artificial breeding method for grouper
CN111194706B (en) * 2020-02-26 2022-02-18 海南晨海水产有限公司 Efficient artificial breeding method for Lutjanus argentimaculatus in outdoor ecological pond
CN111134055B (en) * 2020-02-26 2022-03-22 海南晨海水产有限公司 Efficient outdoor ecological pond artificial breeding method for epinephelus lanceolatus
CN111149738B (en) * 2020-02-27 2022-01-14 海南晨海水产有限公司 Efficient outdoor ecological pond artificial breeding method for hybrid seeds of Epinephelus coioides and Epinephelus hybridus
CN111194707B (en) * 2020-02-27 2022-03-22 海南晨海水产有限公司 Efficient outdoor ecological pond artificial breeding method for red sea perch
CN111771772B (en) * 2020-07-23 2022-11-08 福建省水产研究所(福建水产病害防治中心) Grouper fry breeding method

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