CN101884310B - Method for prompting pond-bred alosa sapidissima to spawn by ecological regulation and control - Google Patents
Method for prompting pond-bred alosa sapidissima to spawn by ecological regulation and control Download PDFInfo
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- CN101884310B CN101884310B CN2010102165693A CN201010216569A CN101884310B CN 101884310 B CN101884310 B CN 101884310B CN 2010102165693 A CN2010102165693 A CN 2010102165693A CN 201010216569 A CN201010216569 A CN 201010216569A CN 101884310 B CN101884310 B CN 101884310B
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- pond
- hilsa herring
- america
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A40/00—Adaptation technologies in agriculture, forestry, livestock or agroalimentary production
- Y02A40/80—Adaptation technologies in agriculture, forestry, livestock or agroalimentary production in fisheries management
- Y02A40/81—Aquaculture, e.g. of fish
Abstract
The invention discloses a method for prompting pond- bred alosa sapidissima to spawn by ecological regulation and control. The method comprises the following steps of: in a breeding season, selecting sexually matured alosa sapidissima parent fish; stocking selected alosa sapidissima parent fish into a breeding pond for enhanced breeding, wherein the water temperature in the breeding pond is stabilized at 18 to 22 DEC G and dissolved oxygen content is kept over 6mg/L; and maintaining water flow stimulation for prompting the alosa sapidissima to spawn continuously and naturally, wherein the water flow is 3 to 8 cubic meters per hour. In the method, germ cells of the pond- bred alosa sapidissima are started and induced to mature and finally the pond-bred alosa sapidissima is prompted to spawn by adopting ecological regulation and control measures such as enhanced breeding, water temperature, dissolved oxygen content, water stimulation and the like, so that parent fish death caused by artificial oxytocin breeding is reduced and labor intensity is reduced.
Description
Technical field
The present invention relates to the fish culture technical field, especially relate to a kind of method of impelling foster America, pond hilsa herring natural spawning with ecology regulation and control.
Background technology
Occurring in nature reaches the fish of age at sexual maturity, in mating season, in case receive condition element; As water level go up suddenly, water volume flow rate is accelerated and the stimulation of water temperature variation etc.; And under the mutual induction of male and female fish, can accomplish the process of laying eggs, realize natural propagation.
The breeding of pond type of breeding fish; Owing to receive the restriction of pond health attitude environmental condition; Generally must be, and auxilliaryly add effects such as necessary ecological condition such as stimulation by running water through the injection exogenous hormone, i.e. " physiological ecological " method of combining; Promote the ripe and ovulation of pond type of breeding fish parent population, and most through artificial insemination completion breeding.The shortcoming of this fish reproduction method is: not only labour intensity is big, causes easily that also parent population is dead.
America hilsa herring (Alosa sapidissima) belongs to a subfamily together with Chinese hilsa herring, and is very similar on form, and fine and tender taste, and delicious flavour can compare favourably with Chinese hilsa herring on mouthfeel, taste.China just introduced America hilsa herring fertilized egg from the U.S. from 2003, grew seedlings in areas such as Guangdong and Jiangsu and Zhejiang Provinces and cultured.
The America hilsa herring belongs to the river property of the tracing back fish that lay eggs, and in its long-term evolution process, has formed its intrinsic trip spawning habit of wandering from the seawater to fresh water.The America hilsa herring is moved to pond environment from natural surroundings to be cultured; Huge variation has all taken place with main ecological factor such as the closely-related current of reproduction activity, nutrition, salinity, temperature; The adjustment process that the combined influence of these variations and America hilsa herring are supported environment self for adaptation pool all possibly cause its reproductive endocrine imbalance, causes the obstacle of hilsa herring reproduction mechanism aspect, America.
Though domestic have research unit to attempt carrying out the artificial propagation of America hilsa herring, because America hilsa herring stress reaction is strong, dried up promptly dead, artificial propagation very easily causes parent population dead, and therefore, the propagation technique of America hilsa herring waits to improve further and be perfect at present.
Summary of the invention
The object of the present invention is to provide a kind of ecology regulation and control to impel the pond to support the method for America hilsa herring natural spawning, can impel America hilsa herring natural spawning, reduce the parent population death that the artificial induced spawning breeding causes, and can reduce labour intensity significantly.
The object of the invention is realized through following technical scheme: a kind ofly impel the pond to support the method for America hilsa herring natural spawning with ecology regulation and control, it is characterized in that: in mating season, select and reach sexually matured America hilsa herring parent population; Put in a suitable place to breed to cultivate in the pond and carry out reinforced cultivating; Water temperature stability in the cultivation pond keeps more than the dissolved oxygen amount 6mg/L at 18～22 ℃, and keeping current stimulates; Be that discharge is 3～8 cubic metres/hour, continue natural spawning to impel the America hilsa herring.
The present invention has adopted ecology regulation and control measures such as reinforced cultivating, water temperature, dissolved oxygen amount and current stimulation; Start and induce the pond to support America hilsa herring reproductive cell and reach maturity and finally impel its natural spawning; Reduce the parent population death that the artificial induced spawning breeding is caused, and reduced labour intensity.
Reinforced cultivating of the present invention is: with America hilsa herring parent population according to female: male=1: 1 quantity than, put in a suitable place to breed in cultivating the pond with the density of 2～3 kilograms of/cubic metre water bodys; Every day 2～3 feeds of fish body weight 2% of throwing something and feeding.
At least containing albumen in the feed according to the invention is 45～48%, and vitamin E is 0.4～0.8%, and unsaturated fatty acid is 2～4%.
As one embodiment of the present invention; Said cultivation pond is that area is 200～250 square metres a cement pit, and the depth of water is 110～130cm, and the bottom surface, pond is the edge to central authorities' concavity gradually; The center is provided with drain inlet at the bottom of the pond; The corresponding drainage outlet that is provided with drain inlet is provided with water inlet cultivating pool side, and the water when water (flow) direction makes water into along the tangential direction of pool wall in the pond can rotate.
Of the present invention to keep that current stimulate be that discharge is to fill whole cultivation pond in 2 days, and promptly discharge is 5～6 cubic metres/hour.
The present invention strengthens injection flow and is and filled whole cultivation pond in 1 day when finding to have America hilsa herring parent population to chase mutually, and promptly discharge is 10～12 cubic metres/hour.Under the stimulation of water temperature, current etc., America hilsa herring parent population can be successively, continue natural spawning.
The present invention increases the water body dissolved oxygen amount and adopts aerator, and the rotation direction of aerator is consistent with the water inlet direction.Concentrate to pond central authorities so that drive the excreta of cultivating in the pond, help dirt and discharge from drain inlet is concentrated.
The present invention is provided with egg-collecting box at drainage outlet, and fertilized egg is collected, and fertilized egg is inserted in the incubator hatch again.
The present invention is cultivating top, pond covering double-layer plastic film, and adds a cover double-deck black sunshade net, and double-layer plastic film plays insulation effect, and double-deck black sunshade netting gear has dimming function.
The present invention is provided for preventing the anti-facility of escaping of America hilsa herring parent population escape in said drain inlet; Be provided with gap at said drainage outlet.
Compared with prior art, the present invention has following significant effect:
The present invention has adopted and the closely-related ecology regulation and control measure of America hilsa herring reproduction activity; Guaranteed the normal reproduction mechanism of America hilsa herring; Start and induce the pond to support America hilsa herring reproductive cell and reach maturity and finally impel its natural spawning, it is dead to have reduced the parent population that the artificial induced spawning breeding caused, and has reduced labour intensity; The further perfect propagation technique of America hilsa herring has been started the trip property fish of wandering and has been supported the new situation of breeding under the condition in the pond.
Embodiment
Embodiment 1
The invention discloses a kind of method of impelling foster America, pond hilsa herring natural spawning with ecology regulation and control; In mating season; Promptly by the end of February at the beginning of 3 months; Select health, reach sexually matured America hilsa herring parent population and put in a suitable place to breed to cultivate in the pond and carry out reinforced cultivating, reinforced cultivating is female according to America hilsa herring parent population: male=1: 1 quantity than, put in a suitable place to breed in cultivating the pond with the density of 2 kilograms of/cubic metre water bodys; Every day 2 feeds of fish body weight 2% of throwing something and feeding.
Contain albumen in the feed and be 45%, vitamin E is 0.4%, unsaturated fatty acid is 2%; Except that said components, also contain trace element, these trace elements can be selected trace element commonly used in the existing finished product fish meal for use.
Cultivating the pond is that area is 200～250 square metres the oval cement pit in side, and the depth of water is 110～130cm, and the bottom surface, pond is the edge to central authorities' concavity gradually, and the water temperature of cultivating in the pond is 18 ℃, starts aerator, and the maintenance dissolved oxygen amount is 6mg/L; Keeping current stimulates, and discharge is to fill whole cultivation pond in 2 days, and promptly discharge is 5～6 cubic metres/hour; Under the stimulation of water temperature, current etc., America hilsa herring parent population can be successively, continue natural spawning.
The center is provided with drain inlet at the bottom of cultivating the pond in pond, and the corresponding drainage outlet that is provided with drain inlet is provided with water inlet cultivating pool side, and water (flow) direction is along the tangential direction of pool wall, so that the water in the pond can rotate when making water into.Collect fertilized egg at drainage outlet, fertilized egg is inserted in the incubator hatch again.
1 of the waterwheel aerator of increase water body dissolved oxygen amount employing 1.1KW, the rotation direction of aerator is consistent with the water inlet direction, so that it is central concentrated to the pond to drive the excreta of cultivating in the pond, helps dirt and concentrates and discharge from drainage outlet from drain inlet.
Embodiment 2
The difference of present embodiment and embodiment 1 is: reinforced cultivating is female according to America hilsa herring parent population: male=quantity compared, puts in a suitable place to breed in cultivating the pond with the density of 3 kilograms of/cubic metre water bodys in 1: 1; Every day 3 feeds of fish body weight 2% of throwing something and feeding.Contain albumen in the feed and be 48%, vitamin E is 0.8%, unsaturated fatty acid is 4%; All the other components are trace elements.
The water temperature of cultivating in the pond is 22 ℃, keeps dissolved oxygen amount to be not less than 6mg/L; Keeping current stimulates, and promptly discharge is 3 cubic metres/hour.When finding to have America hilsa herring parent population to chase mutually, strengthen injection flow and be and filled whole cultivation pond in 1 day, promptly the discharge of this moment is 10 cubic metres/hour.
At drainage outlet egg-collecting box is set, fertilized egg is collected, fertilized egg is inserted in the incubator hatch again; Be provided for preventing the anti-facility of escaping of America hilsa herring parent population escape in drain inlet; Be provided with gap at drainage outlet.
Embodiment 3
The difference of present embodiment and embodiment 2 is: reinforced cultivating is female according to America hilsa herring parent population: male=quantity compared, puts in a suitable place to breed in cultivating the pond with the density of 2 kilograms of/cubic metre water bodys in 1: 1; Every day 3 feeds of fish body weight 2% of throwing something and feeding.Contain albumen in the feed and be 46%, vitamin E is 0.6%, unsaturated fatty acid is 3%; All the other components are trace elements.
The water temperature of cultivating in the pond is 20 ℃, and keeping current stimulates, and promptly discharge is 8 cubic metres/hour.When finding to have America hilsa herring parent population to chase mutually, strengthen injection flow and be and filled whole cultivation pond in 1 day, promptly the discharge of this moment is 12 cubic metres/hour.
In order to realize cultivating top, pond covering double-layer plastic film, and adding a cover double-deck black sunshade net to cultivating insulation, the light modulation in pond.
Embodiment of the present invention is not limited thereto; According to foregoing of the present invention; Ordinary skill knowledge and customary means according to this area; Do not breaking away under the above-mentioned basic fundamental thought of the present invention prerequisite, the present invention can also make modification, replacement or the change of other various ways, all drops within the rights protection scope of the present invention.
Claims (9)
1. one kind is impelled the pond to support the method for America hilsa herring natural spawning with ecology regulation and control, it is characterized in that: in mating season, select and reach sexually matured America hilsa herring parent population; Put in a suitable place to breed to cultivate in the pond and carry out reinforced cultivating; Water temperature stability in the cultivation pond keeps more than the dissolved oxygen amount 6mg/L at 18～22 ℃, and keeping current stimulates; Be that discharge is 3～8 cubic metres/hour, continue natural spawning to impel the America hilsa herring;
Described reinforced cultivating is: with America hilsa herring parent population according to female: male=1: 1 quantity than, put in a suitable place to breed in cultivating the pond with the density of 2～3 kilograms of/cubic metre water bodys; Every day 2～3 feeds of fish body weight 2% of throwing something and feeding.
2. according to claim 1ly impel the pond to support the method for America hilsa herring natural spawning with ecology regulation and control, it is characterized in that: containing albumen in the said feed at least is 45～48%, and vitamin E is 0.4～0.8%, and unsaturated fatty acid is 2～4%.
3. the method for impelling foster America, pond hilsa herring natural spawning with ecology regulation and control according to claim 1; It is characterized in that: said cultivation pond is that area is 200～250 square metres a cement pit, and the depth of water is 110～130cm, and the bottom surface, pond is the edge to central authorities' concavity gradually; The center is provided with drain inlet at the bottom of the pond; The corresponding drainage outlet that is provided with drain inlet is provided with water inlet cultivating pool side, and the water when water (flow) direction makes water into along the tangential direction of pool wall in the pond can rotate.
4. according to claim 3ly impel the pond to support the method for America hilsa herring natural spawning with ecology regulation and control, it is characterized in that: described to keep that current stimulate be that discharge is to fill whole cultivation pond in 2 days, and promptly discharge is 5～6 cubic metres/hour.
5. the method for impelling foster America, pond hilsa herring natural spawning with ecology regulation and control according to claim 4; It is characterized in that: when finding to have America hilsa herring parent population to chase mutually; Strengthen injection flow and be and filled whole cultivation pond in 1 day, promptly discharge is 10～12 cubic metres/hour.
6. according to claim 1ly impel the pond to support the method for America hilsa herring natural spawning with ecology regulation and control, it is characterized in that: increase the water body dissolved oxygen amount and adopt aerator, the rotation direction of aerator is consistent with the direction of intaking.
7. according to claim 3ly impel the pond to support the method for America hilsa herring natural spawning, it is characterized in that: at drainage outlet egg-collecting box is set, fertilized egg is collected, fertilized egg is inserted in the incubator hatch again with ecology regulation and control.
8. according to claim 7ly impel the pond to support the method for America hilsa herring natural spawning, it is characterized in that: be provided for the anti-facility of escaping that prevents that America hilsa herring parent population from escaping in said drain inlet with ecology regulation and control; Be provided with gap at said drainage outlet.
9. according to claim 8ly impel the pond to support the method for America hilsa herring natural spawning, it is characterized in that: cover double-layer plastic film cultivating the top, pond, and add a cover double-deck black sunshade net with ecology regulation and control.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010102165693A CN101884310B (en) | 2010-07-01 | 2010-07-01 | Method for prompting pond-bred alosa sapidissima to spawn by ecological regulation and control |
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| Application Number | Priority Date | Filing Date | Title |
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| CN2010102165693A CN101884310B (en) | 2010-07-01 | 2010-07-01 | Method for prompting pond-bred alosa sapidissima to spawn by ecological regulation and control |
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| CN101884310A CN101884310A (en) | 2010-11-17 |
| CN101884310B true CN101884310B (en) | 2012-02-29 |
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| CN2010102165693A Expired - Fee Related CN101884310B (en) | 2010-07-01 | 2010-07-01 | Method for prompting pond-bred alosa sapidissima to spawn by ecological regulation and control |
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Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN102578003B (en) * | 2011-01-17 | 2014-02-19 | 中国水产科学研究院淡水渔业研究中心 | Alosa sapidissima culture method |
| CN103478022A (en) * | 2013-08-07 | 2014-01-01 | 泰州市秋雪湖渔业有限公司 | Method for promoting nature spawning of american shad by using artificial culture ecological factor |
| CN105379650B (en) * | 2015-11-17 | 2018-06-22 | 上海市水产研究所 | A kind of method for obtaining batch America hilsa herring fertilized eggs |
| CN110024721B (en) * | 2019-04-29 | 2021-09-21 | 中国水产科学研究院北戴河中心实验站 | Method for inducing apoptosis of ovarian germ cells of flounder |
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| CN101642067B (en) * | 2009-08-21 | 2011-09-07 | 江阴市申港三鲜养殖有限公司 | Method for artificially hastening parturition of American reeves shads, inseminating and hatching germ cells |
| CN101658151A (en) * | 2009-09-11 | 2010-03-03 | 中国水产科学研究院淡水渔业研究中心 | Artificial cultivation and domestication method of American shad fry and fingerlings |
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Granted publication date: 20120229 Termination date: 20120701 |