CN103503809A - Large yellow croaker artificial breeding method - Google Patents

Large yellow croaker artificial breeding method Download PDF

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Publication number
CN103503809A
CN103503809A CN201310476207.1A CN201310476207A CN103503809A CN 103503809 A CN103503809 A CN 103503809A CN 201310476207 A CN201310476207 A CN 201310476207A CN 103503809 A CN103503809 A CN 103503809A
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Prior art keywords
fry
net cage
water
stage
breeding
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CN201310476207.1A
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Chinese (zh)
Inventor
柳敏海
罗海忠
傅荣兵
李青芳
油九菊
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ZHEJIANG PROVINCE ZHOUSHAN CITY AQUATIC PRODUCTS INSTITUTE
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ZHEJIANG PROVINCE ZHOUSHAN CITY AQUATIC PRODUCTS INSTITUTE
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Priority to CN201310476207.1A priority Critical patent/CN103503809A/en
Publication of CN103503809A publication Critical patent/CN103503809A/en
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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

Abstract

The invention provides a large yellow croaker artificial breeding method. The characteristics that when net cage breeding is carried out, direct live foods exist in a sea area water body where fries are located, and the foods multiple in kind and comprehensive in nutrition are used, the fries are moved to net cages for later period breeding, the fries rapidly grow and are healthy in physique, and meanwhile sea area flow is smooth so that parasite diseases of large yellow croakers can be effectively reduced. Compared with the prior art, the large yellow croaker artificial breeding method has the advantages that the main advantages of indoor breeding and net cage breeding are combined, the fries with the body lengths of 1.0cm-1.5cm are moved into the sea area net cages to be continuously bred, movement space required after fry individuals grow up is met, and the fry individuals can live in the outdoor environment under protection of the net cages; the incubation density can be high due to the fact that the fry individuals are small in initial stage breeding, and therefore large-scale breeding is achieved; the production cost is reduced, the fry survival rate is improved, the fry quality is strengthened, the fry releasing requirement with the large standard and the good quality can be met, and meanwhile the later-period survival rate and the finished product quality can be further improved.

Description

The method of large yellow Crocker artificial breeding
Technical field
The present invention relates to a kind of method of large yellow Crocker artificial breeding, belong to agriculture mariculture field, a kind of large yellow Crocker artificial raise seedling method that can be applied to large-scale production is provided.
Background technology
Large yellow Crocker, Osteichthyes, Perciformes, Sciaenidae, yellow croaker belongs to.For one of Zhoushan Fishing Ground tradition " four large marine products ".Due to resource decline, artificial breeding cultural technique is arisen at the historic moment, and has formed at present a whole set of effective large yellow Crocker artificial breeding technology.In this technology, the fry rearing of large yellow Crocker is carried out indoor cement pit from hatching to whole the process more than long 3cm of body, and when hatching, cultivation, density is to put ovum amount at approximately 10-15 ten thousand/m 3, after 55-65 days, emerge, more than the long 3cm of fry body, output of seedling is at 6000 tails/m 3left and right.The advantage that indoors artificial is grown seedlings is easy observation, high density, and the survival rate that prelarva is cultivated is high; Shortcoming is that food species is few, and biological feed supply is unstable and cost is high, and large yellow Crocker stimulates cryptocaryoniosis to be difficult to control simultaneously, and the risk of growing seedlings is high.Because the condition that indoors artificial is cultivated is limit, its cultivation scale is conventionally less, fry quality is not strong, and less scale is difficult to meet that Chinese Government implements to comprising that the fishery resources of large yellow Crocker carry out the policy of large-scale enhancement releasing, the survival rate that thin and weak fry is released behind sea is also lower.
Summary of the invention
For above-mentioned deficiency; the present invention adopts indoor high-density to grow seedlings to cultivate and shallow sea raising in cage combines, carries out relay-type artificial breeding and by the advantages such as low cost of the high density of indoor raising of seedling and raising in cage, and the method for large yellow Crocker artificial breeding of the scale of a kind of seedling cost and Risk Reduction, the raising of seed quality is provided.
The method of large yellow Crocker artificial breeding provided by the invention, carries out: first collect fertilized egg, adopt spilling water method to collect artificial repening fertilized egg that parent population produces, the fertilized egg of collection is washed 2-3 times with clean seawater, then metering as follows; Again by fertilized egg in indoor hatching; Finally carry out fry rearing;
Said indoor hatching is that the fertilized egg measuring is dropped into the clean seawater that has dark 1 ± 0.2m in Li, pond, cement hatchery, in water temperature, is 20-22 ℃, micro-inflation hatching under the environment that salinity is 25-30, and hatching density is 40-60 ten thousand ind/m 3; Wherein said clean seawater is the seawater of processing through obscure shallow lake, sand filtration, and micro-inflation is at 20-30cm by water surface spray diameter control;
Said fry rearing is divided into two stages, and the first stage carries out in indoor hatchery, and pool inner water temperature is 18-22 ℃, and cultivating density is 10-25 ten thousand ind/m 3; First stage is to whole audience fry body, to reach 1.0-1.5cm from hatching; In this stage, after hatching, 4d starts the wheel animalcule of throwing something and feeding through marine chlorella strengthening, and feeding volume is counted 2-15ind/mL with wheel animalcule density in water body; 13d starts to increase the halogen worm of throwing something and feeding, more than halogen worm is strengthened 12h with hardening agent before throwing something and feeding; 15d starts to increase throw something and feed copepoda and mixed bait, and wherein the every bu of mixed bait is thrown something and fed for 4-8 times; The 1h after bait that at every turn throws something and feeds checks the situation of ingesting, and the 90% above prelarva of take ingests to have enough and as standard, adjusts the feeding volume of various bait;
Second stage is carried out in the net cage of sea area, and second stage reaches 5cm to fry body and finishes above; In this stage, the fry that the first stage is finished to rear gained connects water, and to send into mesh be in 20 object net cages, density 4000-6000ind/m in net cage 3, send into before net cage fry place water body water temperature be adjusted to identical with water temperature in net cage; When fry body grows to 2.5-3cm, net cage mesh increases to 0.5cm, and when fry body grows to 4-4.5cm, net cage mesh increases to 1cm; The bait of throwing something and feeding is copepoda and eel powder.
Separately there is bait pond first stage for breeding, strengthen bait while cultivating, and wheel animalcule is fed strengthening with marine chlorella, and halogen worm is with being mainly that the halogen worm nutrition fortifier that DHA and EPA etc. form is fed, and feeding volume is generally 30-50g/m by bait pond water body stereometer 3.
Mixed bait used is commercially available fish pellet.
The method of large yellow Crocker artificial breeding provided by the invention, while utilizing raising in cage, in the water body of fry sea area of living in, there is direct biological feed, and food species is more, the feature of comprehensive nutrition, the fry rearing later stage is moved on in net cage and carried out, fry is grown fast, seed physique is healthy and strong, and sea area current are unimpeded simultaneously, can effectively reduce the generation of large yellow Crocker parasite disease.Compared with prior art, the present invention combines the major advantage of indoor raising of seedling and raising in cage, the fry transition that body is reached to 1.0-1.5cm continues to cultivate in the net cage of sea area, and needed activity space after making to adapt to fry individuality and growing up is lived in wild environment under the protection of net cage.Can, because fry individuality in first stage cultivation can be higher compared with the little hatching density that makes, thereby realize, grow seedlings on a large scale.Not only reduce production cost, can also improve weed survival rate, strengthened fry quality.Can meet that the needed specification of releasing is large, the seed of Functionality, quality and appealing design is supplied with, and survival rate and quality of finished in corresponding raising breeding process.
Said wheel animalcule feeding volume is gradually brought up to 10-15ind/mL at 4d to the 10d from 2-5ind/mL with wheel animalcule densitometer in water body, since 15d, reduces, and stops feeding wheel animalcule to 20d.
In the first stage, from 13d to 25d, take halogen worm and copepoda as main, account for feeding volume more than 80%, after 25d, mixed bait accounts for feeding volume more than 50%.
In the first stage, since 3d soil pick-up, each thoroughly exhaustion mud;
In the first stage, since 5d, change water, 5d quantity of exchanged water is 20% of the pool inner water scale of construction, increases day by day 20% later, the highest by 300%, carries out after being preferably in soil pick-up.
The method of large yellow Crocker artificial breeding provided by the invention, during second stage raising in cage, net cage arranges that address choice is leeward on the sunny side, trend is unimpeded, stormy waves compared with little, flow to straight and stable coastal inner bay sea area, the net cage that fry has just been plunged into the commercial sea while cultivating is placed on central area, cage culture field, when having new fry to plunge into the commercial sea, progressively outwards moves.Because zone line trend is little, it is favourable new for the adaptation of fry to new environment more to stablize.
Said net cage size is the cuboid net cage of long 3m * wide 3m * high 2m.
The method of large yellow Crocker artificial breeding provided by the invention connects fry the operation that water is sent into net cage after the first stage finishes, and carries out as follows: the first 1d bait ,Huan Jing Chi Shui that stops throwing something and feeding before transportation; With black film, pond is covered to ,Liu Yige Chi Jiao again, wait fish to gather after Chi Jiao, with bucket, get; Connect again water and pour container for transportation into; In 6-10h, transport to second stage scene and be transferred to net cage.
During soil pick-up, floss hole is collected with 60 order nets, checks dead seedling and dead bait situation, as the foundation of adjusting bait feeding, water temperature, salinity.
It is said that fry place water body water temperature and water temperature in net cage are adjusted to identical way is fry and water to be contained in in Nylon Bag, to put into cloth standing at the net cage of cultivating sea area again, after water temperature in Nylon Bag is identical with ocean temperature, fry is put in net cage from Nylon Bag.
Embodiment
A method for large yellow Crocker artificial breeding, its process is:
One, fertilized egg collection adopts spilling water method, will float over fertilized egg in water and collect.The fertilized egg of collecting is washed 2-3 times with clean seawater, Weighing then, and empirical tests fertilized egg grain is counted mass ratio and is about 1,250,000 ind/kg.Wherein said clean seawater is the seawater of processing through obscure shallow lake, sand filtration.
Two, large-scale production cement hatchery size is 16m 22,25m 21, pond, having the depth of water is respectively the clean seawater of 1m.Put into respectively fertilized egg 7-8kg, the water temperature of hatching is 20-22 ℃, and salinity is 25-30.Micro-inflation in hatching process.Micro-inflation is at 20-30cm by water surface spray diameter control.
Three, after young seedling hatching, 4d starts to ingest, throw something and feed through the wheel animalcule of marine chlorella strengthening, density is 2-5ind/mL, between the 4-10 day, bring up to gradually 10-15ind/mL, 13d starts to increase the halogen worm of throwing something and feeding, more than halogen worm must be strengthened 12h with hardening agent before throwing something and feeding, halogen worm accounts for more than 80% in total abundance of food.15d starts to increase throw something and feed copepoda and mixed bait reduce gradually throwing something and feeding of wheel animalcule, to 20d, stops the wheel animalcule of throwing something and feeding.15th-24d halogen worm and oar insects, close and account for the more than 80% of total abundance of food, after 25d, mixed bait accounts for feeding volume more than 50%.The mixed bait number of times of throwing something and feeding is 4-8 times/d.After throwing something and feeding, 1h checks the fry situation of ingesting at every turn, and the 90% above fry of take has enough and as standard, adjusts the concrete feeding volume of each bait.
Since 3d soil pick-up, each thorough ,Bu Liu of soil pick-up dead angle, the discharge outlet of soil pick-up is collected with 60 order nets, to check.
Since 5d, change water, quantity of exchanged water increases gradually, from 20% day, increases by 20%, and the highest quantity of exchanged water is 300%.
Four, the fry whole audience starts to fish for transportation after growing to more than the long 1.0cm of body, and before transportation, 1d stops eating, and transportation Qian Jiang Chi Shui changes totally.While fishing for, utilize the phototaxis of large yellow Crocker, with black film, pond is covered to ,Liu Yige Chi Jiao, wait fish to gather after Chi Jiao, with bucket, get.Nylon Bag oxygenation transportation for transportation, the in-built 2000-4000ind of 18cm * 18cm Nylon Bag.Haulage time 8h.
Five, plunge into the commercial sea and cultivate net cage and be placed on central area, cage culture field.Net cage is 20 order net cages, and size is that 2m(is high) * 3m(is long) * 3m(is wide).
After fry transportation arrives, first Nylon Bag is placed in net cage standing, until water temperature rear just open Nylon Bag identical with ocean temperature in Nylon Bag put into net cage by seedling.It is 8-10 ten thousand ind that each net cage is put seedling quantity.The bait of throwing something and feeding is copepoda, eel powder etc.Fry body grows to after 2.5-3cm, and it is 0.5cm that fry is put into mesh, and size is for cultivating in 3m * 3m * 3m net cage; After the long 4-4.5cm of the body of growing seedlings, cultivating net cage mesh is 1cm, and size is for cultivating in 3m * 3m * 3m net cage.Cultivate to the Pseudosciaena crocea Fry that obtains after body reaches 5cm releasing.

Claims (10)

1. a method for large yellow Crocker artificial breeding, carries out: first collect fertilized egg, adopt spilling water method to collect artificial repening fertilized egg that parent population produces, the fertilized egg of collection is washed 2-3 times with clean seawater, then metering as follows; Again by fertilized egg in indoor hatching; Finally carry out fry rearing; It is characterized in that:
Said indoor hatching is that the fertilized egg measuring is dropped into the clean seawater that has dark 1 ± 0.2m in Li, pond, cement hatchery, in water temperature, is 20-22 ℃, micro-inflation hatching under the environment that salinity is 25-30, and hatching density is 40-60 ten thousand ind/m 3; Wherein said clean seawater is the seawater of processing through obscure shallow lake, sand filtration, and micro-inflation is at 20-30cm by water surface spray diameter control;
Said fry rearing is divided into two stages, and the first stage carries out in indoor hatchery, and pool inner water temperature is 18-22 ℃, and cultivating density is 10-25 ten thousand ind/m 3; First stage is to whole audience fry body, to reach 1.0-1.5cm from hatching; In this stage, after hatching, 4d starts the wheel animalcule of throwing something and feeding through marine chlorella strengthening, and feeding volume is counted 2-15ind/mL with wheel animalcule density in water body; 13d starts to increase the halogen worm of throwing something and feeding, more than halogen worm is strengthened 12h with hardening agent before throwing something and feeding; 15d starts to increase throw something and feed copepoda and mixed bait, and wherein the every bu of mixed bait is thrown something and fed for 4-8 times; The 1h after bait that at every turn throws something and feeds checks the situation of ingesting, and the 90% above prelarva of take ingests to have enough and as standard, adjusts the feeding volume of various bait;
Second stage is carried out in the net cage of sea area, and second stage reaches 5cm to fry body and finishes above; In this stage, the fry that the first stage is finished to rear gained connects water, and to send into mesh be in 20 object net cages, density 4000-6000ind/m in net cage 3, send into before net cage fry place water body water temperature be adjusted to identical with water temperature in net cage; When fry body grows to 2.5-3cm, net cage mesh increases to 0.5cm, and when fry body grows to 4-4.5cm, net cage mesh increases to 1cm; The bait of throwing something and feeding is copepoda and eel powder.
2. the method for large yellow Crocker artificial breeding as claimed in claim 1, it is characterized in that said wheel animalcule feeding volume gradually brings up to 10-15ind/mL at 4d to the 10d from 2-5ind/mL with wheel animalcule densitometer in water body, since 15d, reduce, stop feeding wheel animalcule to 20d.
3. the method for large yellow Crocker artificial breeding as claimed in claim 1 or 2, is characterized in that in the first stage, take halogen worm and copepoda as main from 13d to 25d, accounted for feeding volume more than 80%, and after 25d, mixed bait accounts for feeding volume more than 50%.
4. the method for large yellow Crocker artificial breeding as claimed in claim 1, is characterized in that in the first stage, since 3d soil pick-up, and each thoroughly exhaustion mud.
5. the method for large yellow Crocker artificial breeding as claimed in claim 4, while it is characterized in that soil pick-up, floss hole is collected with 60 order nets, checks dead seedling and dead bait situation, as the foundation of adjusting bait feeding, water temperature, salinity.
6. the method for the large yellow Crocker artificial breeding as described in claim 1 or 4 or 5, is characterized in that, in the first stage, since 5d, changing water, and 5d quantity of exchanged water is 20% of the pool inner water scale of construction, increases day by day 20% later, the highest by 300%.
7. the method for large yellow Crocker artificial breeding as claimed in claim 1, while it is characterized in that second stage raising in cage, net cage arranges that address choice is leeward on the sunny side, trend is unimpeded, stormy waves compared with little, flow to straight and stable coastal inner bay sea area, the net cage that fry has just been plunged into the commercial sea while cultivating is placed on central area, cage culture field, when having new fry to plunge into the commercial sea, progressively outwards moves.
8. the method for the large yellow Crocker artificial breeding as described in claim 1 or 7, is characterized in that said net cage size is the cuboid net cage of long 3m * wide 3m * high 2m.
9. the method for large yellow Crocker artificial breeding as claimed in claim 1, is characterized in that fry being connected to the operation that water is sent into net cage after the first stage finishes, and carries out as follows: the first 1d bait ,Huan Jing Chi Shui that stops throwing something and feeding before transportation; With black film, pond is covered to ,Liu Yige Chi Jiao again, wait fish to gather after Chi Jiao, with bucket, get; Connect again water and pour container for transportation into; In 6-10h, transport to second stage scene and be transferred to net cage.
10. the method for the large yellow Crocker artificial breeding as described in claim 1 or 9, it is characterized in that said fry place water body water temperature and water temperature in net cage are adjusted to identical way is fry and water to be contained in in Nylon Bag, to put into cloth standing at the net cage of cultivating sea area again, after water temperature in Nylon Bag is identical with ocean temperature, fry is put in net cage from Nylon Bag.
CN201310476207.1A 2013-10-12 2013-10-12 Large yellow croaker artificial breeding method Pending CN103503809A (en)

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CN105746894A (en) * 2016-03-02 2016-07-13 天津市英创技术有限公司 Specific-pathogen-free living bait for aquatic-seedling culture
CN105994041A (en) * 2016-05-27 2016-10-12 张家港市华阳生态农业发展有限公司 Artificial breeding box and breeding method thereof for ricefield eels
CN106614133A (en) * 2016-12-07 2017-05-10 宁德市富发水产有限公司 Method for improving large yellow croaker fry breeding effect by splashing loess filtrate
CN106688970A (en) * 2016-11-15 2017-05-24 中国水产科学研究院东海水产研究所 Method for artificially breeding fingerlings of siganus vulpinus in indoor environments
CN109769721A (en) * 2019-02-02 2019-05-21 宁波大学 The keeping method that a kind of cultured large yellow croaker body colour is golden yellow, lip is orange

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Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103988798A (en) * 2014-03-21 2014-08-20 舟山海洋科技有限公司 Method for performing wintering breeding on large yellow croaker
CN104170777A (en) * 2014-08-06 2014-12-03 浙江华兴水产科技有限公司 Breeding method for amphiprion ocellarises
CN105360027A (en) * 2015-11-13 2016-03-02 南宁隆盛农业科技有限公司 Method for fish fry rearing
CN105746894A (en) * 2016-03-02 2016-07-13 天津市英创技术有限公司 Specific-pathogen-free living bait for aquatic-seedling culture
CN105994041A (en) * 2016-05-27 2016-10-12 张家港市华阳生态农业发展有限公司 Artificial breeding box and breeding method thereof for ricefield eels
CN106688970A (en) * 2016-11-15 2017-05-24 中国水产科学研究院东海水产研究所 Method for artificially breeding fingerlings of siganus vulpinus in indoor environments
CN106614133A (en) * 2016-12-07 2017-05-10 宁德市富发水产有限公司 Method for improving large yellow croaker fry breeding effect by splashing loess filtrate
CN109769721A (en) * 2019-02-02 2019-05-21 宁波大学 The keeping method that a kind of cultured large yellow croaker body colour is golden yellow, lip is orange
CN109769721B (en) * 2019-02-02 2021-08-03 宁波大学 Method for maintaining golden body color and orange lip color of cultured large yellow croakers

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