CN102487866A - Large-scale natural propagation method for artificially culturing siganus guttatus parents - Google Patents
Large-scale natural propagation method for artificially culturing siganus guttatus parents Download PDFInfo
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- CN102487866A CN102487866A CN2011104014175A CN201110401417A CN102487866A CN 102487866 A CN102487866 A CN 102487866A CN 2011104014175 A CN2011104014175 A CN 2011104014175A CN 201110401417 A CN201110401417 A CN 201110401417A CN 102487866 A CN102487866 A CN 102487866A
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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
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Abstract
The invention relates to a large-scale natural propagation method for artificially culturing siganus guttatus parents, and the method comprises the following steps: after 1.5-3cm juvenile fish grows into parent fish under an artificial culturing condition, boosting the healthy growth of the parent fish by utilizing the natural propagation of an artificial regulating and controlling technology, optimizing the parent fish, optimizing the culturing environment of the parent fish during the culturing process and optimizing baits; in an antenatal stage, suitably adding the natural baits and suitably changing the culturing environment, thereby boosting the gonad maturity of the parent fish; and naturally purifying the culturing environment of the parent fish in the antenatal stage and disinfecting the culturing environment of the parent fish in a postpartum stage, thereby ensuring the survival of the parent fish, increasing the output of the juvenile fish, providing a large number of high-quality fish fries for the industrialized development of the siganus guttatus culturing, and meanwhile, increasing the survival rate of the artificially cultured parent fish and the survival rate of the juvenile fish.
Description
Technical field
The invention belongs to artificial culture fish technical field, particularly relate to a kind of artificial culture siganus guttatus parent scale natural propagation method.
Background technology
Siganus guttatus (Siganus guttatus is commonly called as golden tiger spot) is under the jurisdiction of Perciformes, siganidae; Siganus, its delicious meat, protein content is high; Be rich in the n-3 highly unsaturated fatty acid, be of high nutritive value, liked by consumers in general; Bigger at the Southeast Asian countries sales volume, in Fujian of China, markets such as Guangdong, Hong Kong are in great demand.
Siganus guttatus is a rare ominivore-fish in the Perciformes, also is rare ominivore-fish in the mariculture kind (mariculture is wide in variety to be predacious fish), and the notable feature that has is: 1. omnivorousness; The source of raising is prone to solve; Tangleweeds such as siganus guttatus happiness food Enteromorpha are not wasted resource, help enhancement of environment; In breeding process, can reduce to culture and drop into; For setting up " grain-saving type ", " environmentally friendly " healthy aquaculture pattern, guarantee that health, the sustainable development of fishery has far reaching significance, development potentiality is huge.2. eurysalinity, it is wide to culture waters and spatial dimension, and siganus guttatus both can mariculture; Also adapt to brackish culture, through the desalination cultivation technology of exploitation siganus guttatus, breed waters and the space that can further widen siganus guttatus; Market prospects are wide; Development trend is better, will bring huge economic interests and social ecological effect, has wide industrialization prospect.3. eurythermic, China is coastal can culture with the middle part, and the siganus guttatus environment-adapting ability is strong, and growth is fast, can develop multiple efficient and healthful ecologic breeding pattern, the outburst of habit control pond macro that can be through siganus guttatus, cleaning etting etc.The expert actively recommends siganus guttatus as a kind of new breed object both at home and abroad.At present, this suggestion is accepted by many countries and regions, particularly countries such as Southeast Asia, the Middle East and Fiji.In recent years, China's southern area has been actively developed the different breeding model study of siganus guttatus, has formed certain breed scale gradually.
Realize the development of siganus guttatus aquaculture industry, must realize the large batch of seed breeding production of siganus guttatus total man worker.Because the siganus guttatus stress reaction is strong, the male and female sexual maturity is asynchronous, need carry out accelerating the ripening and hastening parturition (this also is the method that the artificial propagation of many sea water and fresh water fishes is adopted) of medicine, siganus guttatus dorsal fin, abdomeinal fin, pectoral fin length have sharp sour jujube; And sour jujube is toxic, in operating process, does not note just stabbing hand slightly, the difficult load of pain; Inconvenient operation; Produce for the scale seed and bring influence, cause parent population injured easily simultaneously, the one-tenth that influences the parent population in postpartum is lived.
To siganus guttatus stress reaction strong (actuating is just dead); Problems such as early stage prelarva survival rate is low; Carried out series of studies; Reduced the dead problem of siganus guttatus parent population processing ease through anesthesia, through best oxytocic drug 5 (LHRH-A25.0 μ g+HCG500IU+DOM1.0mg/kg), the spawning rate of wild parent population is that 60-80%, fertilization rate are that 83.2-90.5%, incubation rate are 71.2-76.8%.The survival rate 16.1% of prelarva.But, still have postpartum the 30-40% parent population dead through the parent population of hastening parturition.Owing to adopt the effect of accelerating the ripening and hasten parturition of exogenous hormone; The quality problems that have sperm and ovum; Directly have influence on the survival rate of after fertilization seedling, up to the present this also be, leans on one of artificial repening, the low key factor of most of marine fish juvenile fish survival rate of hastening parturition.
Summary of the invention
Technical problem to be solved by this invention provides a kind of artificial culture siganus guttatus parent scale natural propagation method, and under the artificial culture condition, the juvenile fish of 1.5-3cm becomes the natural propagation behind the parent population.Through artificial regulatory technology, without the accelerating the ripening of outer source technology, hastening parturition reaches scale natural propagation, for the development of siganus guttatus aquaculture industry provides large batch of high-quality seed, improves the survival rate of artificial culture parent population survival rate in postpartum and juvenile fish simultaneously.
The technical solution adopted for the present invention to solve the technical problems is: a kind of method of artificial culture siganus guttatus parent scale natural propagation comprises the following steps:
(1) at the parent fish selection that carries out siganus guttatus mid-February in every year, select no injured, body surface smooth, body weight at the 500-600g individuality as the parent;
(2) antenatal 2 months, pick out the dam fish of siganus guttatus, through increasing temperature and the measure that prolongs light application time, promote the gonad development of female parent population, reach with male synchronously;
(3) antenatal 1 month, in the artificial mixed feed of said parent population, increase fresh food;
(4) antenatal two weeks, in the breeding environment of said parent population, discharge is adjusted to 0.8m/s, keeps intensity of illumination and water temperature, impels sexual gland to reach ripe;
(5) in antenatal 2 to 3 days, clean and cultivate the pond, and stop the bait of throwing something and feeding, regulate current 1-1.5m/s, strengthen quantity of exchanged water, and want change water every day 100%;
(6) postpartum; The certain thorough disinfection in pond of parent population after placement is laid eggs; In water body, add the 2mg/L terramycin and protect from infection, the initial stages of restoration of parent population reduces throwing something and feeding of bait in postpartum, replenishes vegetal bait; After treating that parent population ingests normally, can carry out parent population according to antenatal feeding method and cultivate postpartum.
Described step (2) is said through increasing temperature and the measure that prolongs light application time, and not being meant according to day does not increase by 1 ℃ of water temperature and be increased to 25 ℃ up to water temperature, prolongs light application time to 20 hour by 21 hours.
Described step (3) fresh food is oyster, fish or crab, and the injected volume of said fresh food is 3 to 5% of a parent population body weight.
The antenatal two weeks of described step (4) keeps intensity of illumination and water temperature, is meant that intensity of illumination remains on 5000-8000xl, water temperature remains on 27-29 ℃.
Beneficial effect
The siganus guttatus that the present invention picks out, through the cultivation of above-mentioned raun, reinforced cultivating, the eco-environmental control of male and female parent population and the preceding preparation of laying eggs, the siganus guttatus parent population of artificial culture reaches sexual maturity fully; Do not needing through exogenous hormone accelerate the ripening, hasten parturition the effect under, reached scale natural propagation, produced with natural endowment under effect same; Changed the situation that the breeding of artificial culture siganus guttatus need just can be laid eggs under the effect of exogenous hormone; Ripe parent population reaches 100% and lays eggs, and the fertilization rate reached of natural propagation is to (78-90%), and incubation rate reaches (80-88%); The juvenile fish survival rate reaches more than (30%); The injury of having avoided artificial induced spawning to cause simultaneously, postpartum, the parent population survival rate reached 100%, reduced the parent population loss.
Embodiment
Below in conjunction with specific embodiment, further set forth the present invention.Should be understood that these embodiment only to be used to the present invention is described and be not used in the restriction scope of the present invention.Should be understood that in addition those skilled in the art can do various changes or modification to the present invention after the content of having read the present invention's instruction, these equivalent form of values fall within the application's appended claims institute restricted portion equally.
Practical implementation is divided into 6 steps:
1, the mid-February in every year, from the artificial culture pond, select 500-600g body surface smooth, undamaged parent population.;
2, carry out male and female and differentiate, the female parent population that identifies is put into the cultivation pond separately cultivate, the water temperature of cultivation is raised to 25 ℃ from water temperature (18-20 ℃) at that time with 1 ℃/day; Prolong light application time simultaneously, every afternoon, illuminating lamp was opened before not deceiving in the sky, lasted till and turned off the light eight thirty of evening; Turn off the light and will turn off the light one by one, Close All can be frightened parent population suddenly; Cultivate 2 months time with this understanding, the gonad development of female parent population is reached with male synchronous;
3, siganus guttatus male and female parent population is antenatal 1 month, in artifical compound feed, increases part fresh food (making rotten shape like oyster, fish and crab adds in the artificial feed) and carries out reinforced cultivating, guarantees parent population sexual gland quality, and feeding rate is 3～5% of a fish body weight;
4, lay eggs first half of the month, open into discharge outlet, the draining position was from 100cm to 30cm water level in per two days; Strengthen quantity of exchanged water; And the flow velocity in the pond is arrived about 0.8m/s through regulating current, regulate intensity of illumination at 5000-8000lx, water temperature 27-29 ℃; Salinity remains on more than 28, and the sexual gland through flowing water and light stimulus parent population reaches physical maturity;
5, lay eggs and clean to cultivate the pond in preceding 2,3 days, and stop the bait of throwing something and feeding, regulate current 1-1.5m/s, strengthen quantity of exchanged water, and want change water every day 100%;
6, parent population management in postpartum, the certain thorough disinfection in pond of parent population can add the 2mg/L terramycin and protect from infection after placement was laid eggs in water body.The initial stages of restoration of parent population suitably reduces throwing something and feeding of bait in postpartum, and suitable some the vegetal bait (Enteromorpha, fragrant plant mentioned in ancient texts etc.) that replenish have and induce the effect of ingesting preferably.After treating that parent population ingests normally, can carry out parent population according to antenatal feeding method and cultivate postpartum.
The siganus guttatus of picking out; Through the cultivation of raun, reinforced cultivating, the eco-environmental control of male and female parent population and the preceding preparation of laying eggs; The siganus guttatus parent population of artificial culture do not needing through exogenous hormone accelerate the ripening, hasten parturition the effect under, reached scale natural propagation, produced with natural endowment under effect same; Changed the situation that the breeding of artificial culture siganus guttatus need just can be laid eggs under the effect of exogenous hormone, the injury of having avoided artificial induced spawning to cause simultaneously.Through the management of parent population in postpartum, postpartum, parent population did not have the death condition generation.
Claims (4)
1. the method for an artificial culture siganus guttatus parent scale natural propagation comprises the following steps:
(1) at the parent fish selection that carries out siganus guttatus mid-February in every year, select no injured, body surface smooth, body weight at the 500-600g individuality as the parent;
(2) antenatal 2 months, pick out the dam fish of siganus guttatus, through increasing temperature and the measure that prolongs light application time, promote the gonad development of female parent population, reach with male synchronously;
(3) antenatal 1 month, in the artificial mixed feed, increase fresh food;
(4) antenatal two weeks, in the breeding environment of said parent population, discharge is adjusted to 0.8m/s, keeps intensity of illumination and water temperature, impels sexual gland to reach ripe;
(5) in antenatal 2 to 3 days, clean and cultivate the pond, and stop the bait of throwing something and feeding, regulate current 1-1.5m/s, strengthen quantity of exchanged water, and want change water every day 100%;
(6) postpartum, the pond of the back parent population that lays eggs is placed in thorough disinfection, in water body, adds the 2mg/L terramycin and protects from infection; The initial stages of restoration of parent population reduces throwing something and feeding of bait in postpartum; Replenish vegetal bait, treat parent population ingest normal after, can carry out parent population according to antenatal feeding method and cultivate postpartum.
2. a kind of artificial culture siganus guttatus parent scale natural propagation method according to claim 1; It is characterized in that: passing through in the described step (2) increases temperature and the measure that prolongs light application time; Be meant according to increasing by 1 ℃ of water temperature every day to be increased to 25 ℃, prolong light application time to 20 hour by 21 hours up to water temperature.
3. a kind of artificial culture siganus guttatus parent scale natural propagation method according to claim 1, it is characterized in that: the fresh food in the described step (3) is oyster or fish or crab, the injected volume of said fresh food is 3 to 5% of a parent population body weight.
4. a kind of artificial culture siganus guttatus parent scale natural propagation method according to claim 1; It is characterized in that: the antenatal two weeks in the said step (4); Keep intensity of illumination and water temperature, be meant that intensity of illumination remains on 5000-8000xl, water temperature remains on 27-29 ℃.
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| CN2011104014175A CN102487866B (en) | 2011-12-06 | 2011-12-06 | Large-scale natural propagation method for artificially culturing siganus guttatus parents |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102907360A (en) * | 2012-10-29 | 2013-02-06 | 中国水产科学研究院黄海水产研究所 | Large-scale breeding method for white cyanea nozakii |
| CN103718994A (en) * | 2013-11-27 | 2014-04-16 | 安徽省郎溪县水产管理站 | Method for artificially inducing parent pseudorasbora parva gonad synchronous development |
| CN104255602A (en) * | 2014-09-24 | 2015-01-07 | 国家***第三海洋研究所 | Coral reef ecosystem restoration method through siganus guttatus |
| CN104335938A (en) * | 2014-09-09 | 2015-02-11 | 中国水产科学研究院东海水产研究所 | Siganus guttatus fry breeding method |
| CN106942099A (en) * | 2017-02-22 | 2017-07-14 | 中国水产科学研究院东海水产研究所 | A kind of method of siganus guttatus fry hatching |
| CN106962235A (en) * | 2017-02-20 | 2017-07-21 | 中国水产科学研究院东海水产研究所 | A kind of early numerous method of siganus guttatus |
| CN112219758A (en) * | 2020-10-19 | 2021-01-15 | 中国水产科学研究院南海水产研究所 | Method for controlling sexual maturity of siganus oramin |
| CN113303251A (en) * | 2021-04-21 | 2021-08-27 | 中国水产科学研究院东海水产研究所 | Efficient artificial reinforcement cultivation method for siganus longipes parents |
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Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102907360A (en) * | 2012-10-29 | 2013-02-06 | 中国水产科学研究院黄海水产研究所 | Large-scale breeding method for white cyanea nozakii |
| CN103718994A (en) * | 2013-11-27 | 2014-04-16 | 安徽省郎溪县水产管理站 | Method for artificially inducing parent pseudorasbora parva gonad synchronous development |
| CN103718994B (en) * | 2013-11-27 | 2015-11-18 | 安徽省郎溪县水产管理站 | A kind of method that artificial induction pseudorasbora parva parent population sexual gland is synchronously grown |
| CN104335938A (en) * | 2014-09-09 | 2015-02-11 | 中国水产科学研究院东海水产研究所 | Siganus guttatus fry breeding method |
| CN104335938B (en) * | 2014-09-09 | 2016-05-11 | 中国水产科学研究院东海水产研究所 | A kind of method of siganus guttatus seed cultivation |
| CN104255602A (en) * | 2014-09-24 | 2015-01-07 | 国家***第三海洋研究所 | Coral reef ecosystem restoration method through siganus guttatus |
| CN106962235A (en) * | 2017-02-20 | 2017-07-21 | 中国水产科学研究院东海水产研究所 | A kind of early numerous method of siganus guttatus |
| CN106942099A (en) * | 2017-02-22 | 2017-07-14 | 中国水产科学研究院东海水产研究所 | A kind of method of siganus guttatus fry hatching |
| CN112219758A (en) * | 2020-10-19 | 2021-01-15 | 中国水产科学研究院南海水产研究所 | Method for controlling sexual maturity of siganus oramin |
| CN113303251A (en) * | 2021-04-21 | 2021-08-27 | 中国水产科学研究院东海水产研究所 | Efficient artificial reinforcement cultivation method for siganus longipes parents |
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Address after: 200090 Shanghai military road, Yangpu District, No. 300 Applicant after: East China Sea Fisheries Research Institute, Chinese Academy of Fishery Sciences Address before: 200090 No. 100, military road, Shanghai, Yangpu District Applicant before: East China Sea Fisheries Research Institute, Chinese Academy of Fishery Sciences |
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