CN102487854A - Artificial double spawning method for bighead carps - Google Patents
Artificial double spawning method for bighead carps Download PDFInfo
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- CN102487854A CN102487854A CN2011103720316A CN201110372031A CN102487854A CN 102487854 A CN102487854 A CN 102487854A CN 2011103720316 A CN2011103720316 A CN 2011103720316A CN 201110372031 A CN201110372031 A CN 201110372031A CN 102487854 A CN102487854 A CN 102487854A
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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
An artificial double spawning method for bighead carps includes: valuing cultivation of bighead carps in autumn to fully develop sexual glands of parent fishes; strengthening cultivation of the bighead carps in spring to further promote growth of the sexual glands of the parent fishes; selecting mature parent fishes for initial spawning; strengthening short-term cultivation for 18 to 22 days after delivery of the bighead carps, arousing secondary growth of the sexual glands until maturity, and performing artificial spawning the bighead carps secondarily developed by controlling water level, regulating water quality, adjusting pH value and keeping microflow water stimulation for 9 hours to 11 hours each day; and using B-type mixed hormones as spawning drugs at the initial spawning and the secondary spawning. Brood amount of the bighead carps bred by the method is increased by 20%, and breeding efficiency is increased by 100% by changing annual single spawning breeding into double spawning breeding.
Description
Technical field
The present invention relates to a kind of bighead manual secondary method of hastening parturition, belong to aquatic products and produce fresh water young fish breeding field.
Background technology
Bighead is the formal name used at school of big head, claims the silver carp flathead again, one of famous four large Chinese carps of China.This fish is big and fertile, and the snow-white delicacy of meat is the first-selection of fish heads chafing dish.The big head head is big, accounts for 1/3rd of body length, turns black and piebald is arranged in the side, and the eye position is lower.The fish brain is nutritious, wherein includes a kind of fish oil of needed by human body, and is rich in polyunsaturated fatty acid in the fish oil, and this is the necessary nutrients of a kind of mankind, can play the effect of keeping, improve, improve cerebral function.In addition, the following meat of the fish gill is transparent glue, and collagen is rich in the inside, can resist human senescence and repair the soma tissue; Contained humidity is sufficient, so mouthfeel is fine.Because the human living standard improves constantly, and is increasing for the bighead requirement, however the existing technology of hastening parturition of bighead; Before hastening parturition, fail parent population is carried out strict screening; And think little of cultivating, thereby the fish brood amount of parent population is on the low side, per kilogram parent population bosom ovum has only 6～80,000.Can only greatly reduce reproductive efficiency every year to the parent population process of once hastening parturition.
The existing technology of hastening parturition of people is at present: the first step is the parent population selection, no matter is the bighead of breeding or spontaneous growth, as long as reach age at sexual maturity, all can be used as parent population; Second step was parent fish rearing, selected nearly water source, irrigation and drainage convenient, and before parent population was put in a suitable place to breed, the pond was leveled to cultivating, sterilization and basal dressing, and after putting in a suitable place to breed, in the winter time or antenatally suitably replenish a little powdery concentrated feeds, every tail year is thrown fine fodder 20kg; The 3rd goes on foot parent population hastens parturition; Water temperature is carried out the injection of 1 or 2 oxytocic drug in the time of 22～26 ℃, oxytocic drug is hypophysis or hypophysis and hormone intermixture or human chorionic gonadtropin; Mix than with the parent population in the spawning inducing pool by 1: 1～1: 1.5 male and female again; In the preceding 1～2h that the oestruses stimulation of washing by water, milter row is smart, the raun ovulation, promptly accomplishes the artificial induced spawning of bighead.Though adopt above method fishman do not cost the too many time go to choose seeds, cultivate also can successful parent population artificial induced spawning, this method one is not paid attention to bighead and is cultivated autumn, thus the fish brood amount of parent population is on the low side, per kilogram parent population bosom ovum has only 6～80,000; Two do not strengthen spring and autumn cultivates, thereby can not promote the parent population sexual gland fully ripe, and can not carry out the secondary artificial induced spawning, so just greatly reduces the reproduction rate of bighead.
Summary of the invention
The objective of the invention is to exist one not pay attention to bighead cultivation in autumn in the prior art in order to solve, thereby the fish brood amount of parent population is on the low side, per kilogram parent population bosom ovum has only 6～80,000; Two do not strengthen spring and autumn cultivates; Thereby can not promote the parent population sexual gland fully ripe; And can not carry out the secondary artificial induced spawning, so just greatly reduce the shortcomings and deficiencies of the reproduction rate of bighead, a kind of bighead secondary induced spawning method is provided; Pay attention to the cultivation of bighead in autumn, make the parent population fish brood amount reach 8～100,000; Strengthen spring and cultivate, promote the parent population sexual gland fully ripe; Carry out the short-term reinforced cultivating of 18～22 day time after paying attention to once hastening parturition, impel by the breeding of hastening parturition once a year and become the secondary breeding of hastening parturition, improved reproductive efficiency 100%.
The present invention for realizing the technical scheme that technical purpose adopts is:
A kind of bighead manual secondary method of hastening parturition may further comprise the steps:
(1) in annual autumn, sexually matured parent population thrown in the fishpond respectively cultivate, cultivating the pond depth of water is 1.5～3m, and water temperature is 20～30 ℃, and water transparency is 25～30cm;
(2) strengthen next spring cultivating, cultivating the pond depth of water is 1.2～1.5m, and water temperature is 10～20 ℃; Water colour is yellowish-brown or dark brown, and water transparency is 30～35cm, in every first quarter moon bath in period in early spring once; Wash by water weekly once middle period in spring; Per two days of late spring washed by water once, and the time of each bath is 1.5h～2.5h, and cultivation pond draining dissolved oxygen amount reaches 3～8mg/L;
(3) carrying out the parent population that spring, the reinforcement cultivation obtained, said parent population is dropped into respectively in the spawning inducing pool, when water temperature reaches 18～22 ℃, carried out parent population and hasten parturition; Inject two pin oxytocic drugs at the pectoral fin base portion; 70% of 30%, the second pin injection oxytocic drug total amount of first pin injection oxytocic drug total amount, the double injection time interval is 8～12h; Wherein the milter ID is the half the of raun; Male and female by 1: 1 or 2: 1 mix than with the parent population in the spawning inducing pool again, and the artificial induced spawning first time of bighead is promptly accomplished in smart, the raun ovulation of milter row after 8～12 hours;
(4) with postpartum bighead put back to and cultivate in the pond; Cultivate the pond depth of water and remain 1.3～1.7m; Water temperature is 18～32 ℃, in cultivating the pond, throws simultaneously and executes inorganic fertilizer and quicklime, and the maintenance water transparency is 28～30cm; Through the short-term reinforced cultivating of 18～22 day time, and keep every day circulation miniflow water to stimulate bighead;
(5) drop into the bighead of short-term reinforced cultivating in the spawning inducing pool respectively; Reach 22～30 ℃ in water temperature and carry out bighead and hasten parturition, inject two pin oxytocic drugs, 10～20% of first pin injection oxytocic drug total amount at the pectoral fin base portion; 80～90% of second pin injection oxytocic drug total amount; The double injection time interval is 6～10h, and wherein the milter ID is the half the of raun, and the male and female by 1: 1 or 2: 1 mix than with the parent population in the spawning inducing pool again; The artificial induced spawning second time of bighead is promptly accomplished in smart, the raun ovulation of milter row after 8～10 hours.
The depth of water is 1.8～2.7m in a kind of bighead manual secondary method of hastening parturition, said step (1), and water temperature is 22～28 ℃, water transparency 26～29cm.
The depth of water is 2.0m in a kind of bighead manual secondary method of hastening parturition, said step (1), and water temperature is 26 ℃.
A kind of bighead manual secondary method of hastening parturition, in the said step (1) sexually matured parent population be 3 ages above propagate artificially parent population or 4 ages above natural wild parent population.
A kind of bighead manual secondary method of hastening parturition, in cultivating the pond, throwing in the said step (4) and executing inorganic fertilizer is 14～16 jin of 4～6 jin in every mu of area urea unreasonable like a shrew or carbon ammoniums.
A kind of bighead manual secondary method of hastening parturition, in cultivating the pond, throwing in the said step (4) and executing quicklime is that every mu of area is thrown and executed 25～30 kilograms, whenever executes once at a distance from throwing in 5 days.
A kind of bighead manual secondary method of hastening parturition, in the said step (4) in cultivating the pond every day keep the little water of circulation to stimulate bighead, and the little water of circulation that kept every day 9～11 hours stimulates.
A kind of bighead manual secondary method of hastening parturition, oxytocic drug is the Type B hormotone in said step (3), (5).
Compared with prior art, the substantive distinguishing features that has of the present invention is:
Pay attention to the cultivation of bighead in autumn, make the parent population fish brood amount reach 8～100,000; Strengthen spring and cultivate, promote the parent population sexual gland fully ripe; Carry out the short-term reinforced cultivating of 18～22 day time after paying attention to once hastening parturition, impel to have become secondary by hastening parturition once a year and hasten parturition, improved reproductive efficiency 100%.
Embodiment
Be described further in the face of the present invention down.
Embodiment one: this embodiment bighead manual secondary method of hastening parturition realizes according to the following steps: one, in annual autumn; With sexually matured parent population is that propagate artificially parent population or the natural wild parent population more than 4 ages more than 3 ages thrown in the fishpond respectively and cultivate, and cultivates the pond depth of water and is controlled to be 1.5～3m, and water temperature is 20～30 ℃; Throw fertile in good time; Cultivate water quality, adopt each every mu of throwing to execute to throw for 300 jin and per 10 days and execute fermentation pig manure once, guarantee that water transparency is between 25～30cm; Two, strengthen next spring cultivating, cultivating the pond depth of water is 1.2～1.5m, and water temperature is 10～20 ℃; Water colour is yellowish-brown or dark brown, and water transparency is 30～35cm, in every first quarter moon bath in period in early spring once; Wash by water weekly once middle period in spring; Per two days of late spring washed by water once, and the time of each bath is 1.5h～2.5h, and cultivation pond draining dissolved oxygen amount reaches 3～8mg/L; Three, carrying out the parent population that spring, the reinforcement cultivation obtained, said parent population is dropped in the spawning inducing pool respectively.When water temperature reaches 18～22 ℃, select the raun belly to expand, tangible ovary profile is arranged; Fish side scale pine, reproduction is empty lax, and presents little purple color; And touch fish belly portion before, during and after, feel easily and have elasticity and carry out parent population and hasten parturition, male fish selects to squeeze gonopore with have gentle hands has the parent population that carries out that seminal fluid flows out to hasten parturition; Inject two pin oxytocic drugs at the pectoral fin base portion, 70% of 30%, the second pin injection oxytocic drug total amount of first pin injection oxytocic drug total amount; Two pins are spaced apart 8～12h inject time, and wherein the milter ID is the half the of raun, and the male and female by 1: 1 or 2: 1 mix than with the parent population in the spawning inducing pool again; The artificial induced spawning first time of bighead is promptly accomplished in smart, the raun ovulation of milter row after 8～12 hours; Four, with postpartum bighead put back to and cultivate in the pond, cultivate the pond depth of water and remain 1.3～1.7m, water temperature is 18～32 ℃; While throws in cultivating the pond and executes inorganic fertilizer and quicklime, throws the quantity of the unsteady plant of organic fertilizer material ability fast culture, reaches liquid manure, work, tender, refreshing; And need guarantee that water transparency is 28～30cm; It is in order to improve water quality that quicklime is executed in throwing, and regulating reservoir water acid-base value has reached the sterilization prophylaxis effect again.The short-term reinforced cultivating of 18～22 day time of warp, and keep every day circulation miniflow water to stimulate bighead, bighead is not only dissolved foster amount abundance in the water in little water environment; And natural bait is abundant; Fish is movable against the current, does not only have lot of consumption muscle power, and in this environment; Quick-recovery and the influence of elimination soon because of hastening parturition for the first time then, thus impel sexual gland to grow fast; Five, drop into the bighead of short-term reinforced cultivating in the spawning inducing pool respectively; Reach 22～30 ℃ in water temperature and carry out bighead and hasten parturition, inject two pin oxytocic drugs, the 10-20% of first pin injection oxytocic drug total amount at the pectoral fin base portion; The 80-90% of second pin injection oxytocic drug total amount; Two pins are spaced apart 6～10h inject time, and wherein the milter ID is the half the of raun, and the male and female by 1: 1 or 2: 1 mix than with the parent population in the spawning inducing pool again; The artificial induced spawning second time of bighead is promptly accomplished in smart, the raun ovulation of milter row after 8～10 hours.
Embodiment two: what this embodiment and embodiment one were different is that the depth of water is 1.8～2.7m in the step 1, and water temperature is 22～28 ℃, water transparency 26～29cm.Other step and parameter are identical with embodiment one.
Embodiment three: what this embodiment and embodiment one were different is that the depth of water is 2.0m in the step 1, and water temperature is 26 ℃.Other step and parameter are identical with embodiment one.
Embodiment four: this embodiment and embodiment one are different is to throw in cultivating the pond in the step 4 that to execute inorganic fertilizer be 14～16 jin of 4～6 jin in every mu of area urea unreasonable like a shrew or carbon ammoniums.Other step and parameter are identical with embodiment one.
Embodiment five: this embodiment and embodiment one are different is to throw in cultivating the pond in the step 4 that to execute quicklime be that every mu of area is thrown and executed 25～30 kilograms, whenever executes once at a distance from throwing in 5 days.Other step and parameter are identical with embodiment one.
Embodiment six: this embodiment and embodiment one are different be in the step 4 in cultivating the pond every day keep the little water of circulation to stimulate bighead, and the little water of circulation that kept every day 9～11 hours stimulates.Other step and parameter are identical with embodiment one.
Embodiment seven: what this embodiment and embodiment one were different is that oxytocic drug is the Type B hormotone in the step 3, four.Other steps and parameter are identical with embodiment three or four.
In the embodiment that bighead manual secondary of the present invention is hastened parturition, fish brood amount has improved 20%, has brought up to 8～100,000 by 6～80,000 of per kilogram parent population fish brood amounts.And also become the secondary breeding of hastening parturition, thereby improved bighead reproductive efficiency 100% by the breeding of hastening parturition once a year.
The present invention is not limited in the foregoing description, also comprises the combination in any of each embodiment, perhaps in the ken that those of ordinary skills possessed, can also make various variations not breaking away under the aim prerequisite of the present invention.
Claims (8)
1. bighead manual secondary method of hastening parturition is characterized in that may further comprise the steps:
(1) in annual autumn, sexually matured parent population thrown in the fishpond respectively cultivate, cultivating the pond depth of water is 1.5～3m, and water temperature is 20～30 ℃, and water transparency is 25～30cm;
(2) strengthen next spring cultivating, cultivating the pond depth of water is 1.2～1.5m, and water temperature is 10～20 ℃; Water colour is yellowish-brown or dark brown, and water transparency is 30～35cm, in every first quarter moon bath in period in early spring once; Wash by water weekly once middle period in spring; Per two days of late spring washed by water once, and the time of each bath is 1.5h～2.5h, and cultivation pond draining dissolved oxygen amount reaches 3～8mg/L;
(3) carrying out the parent population that spring, the reinforcement cultivation obtained, said parent population is dropped into respectively in the spawning inducing pool, when water temperature reaches 18～22 ℃, carried out parent population and hasten parturition; Inject two pin oxytocic drugs at the pectoral fin base portion; 70% of 30%, the second pin injection oxytocic drug total amount of first pin injection oxytocic drug total amount, the double injection time interval is 8～12h; Wherein the milter ID is the half the of raun; Male and female by 1: 1 or 2: 1 mix than with the parent population in the spawning inducing pool again, and the artificial induced spawning first time of bighead is promptly accomplished in smart, the raun ovulation of milter row after 8～12 hours;
(4) with postpartum bighead put back to and cultivate in the pond; Cultivate the pond depth of water and remain 1.3～1.7m; Water temperature is 18～32 ℃, in cultivating the pond, throws simultaneously and executes inorganic fertilizer and quicklime, and the maintenance water transparency is 28～30cm; Through the short-term reinforced cultivating of 18～22 day time, and keep every day circulation miniflow water to stimulate bighead;
(5) drop into the bighead of short-term reinforced cultivating in the spawning inducing pool respectively; Reach 22～30 ℃ in water temperature and carry out bighead and hasten parturition, inject two pin oxytocic drugs, 10～20% of first pin injection oxytocic drug total amount at the pectoral fin base portion; 80～90% of second pin injection oxytocic drug total amount; The double injection time interval is 6～10h, and wherein the milter ID is the half the of raun, and the male and female by 1: 1 or 2: 1 mix than with the parent population in the spawning inducing pool again; The artificial induced spawning second time of bighead is promptly accomplished in smart, the raun ovulation of milter row after 8～10 hours.
2. the bighead manual secondary according to claim 1 method of hastening parturition is characterized in that the depth of water is 1.8～2.7m in the said step (1), and water temperature is 22～28 ℃, water transparency 26～29cm.
3. the bighead manual secondary according to claim 1 and 2 method of hastening parturition is characterized in that the depth of water is 2.0m in the said step (1), and water temperature is 26 ℃.
4. according to claim 1, the 2 or 3 described bighead manual secondary method of hastening parturition, it is characterized in that sexually matured parent population in the said step (1) be 3 ages above propagate artificially parent population or 4 ages above natural wild parent population.
5. the bighead manual secondary according to claim 1 method of hastening parturition is characterized in that in cultivating the pond, throwing in the said step (4) that to execute inorganic fertilizer be 14～16 jin of 4～6 jin in every mu of area urea unreasonable like a shrew or carbon ammoniums.
6. the bighead manual secondary according to claim 1 method of hastening parturition is characterized in that in cultivating the pond, throwing in the said step (4) that to execute quicklime be that every mu of area is thrown and executed 25～30 kilograms, whenever executes once at a distance from throwing in 5 days.
7. the bighead manual secondary according to claim 1 method of hastening parturition it is characterized in that in the said step (4) that keep the little water of circulation to stimulate bighead every day in cultivating the pond, and the little water of circulation that kept every day 9～11 hours stimulates.
8. the bighead manual secondary according to claim 1 method of hastening parturition is characterized in that oxytocic drug is the Type B hormotone in said step (3), (5).
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| CN2011103720316A CN102487854A (en) | 2011-11-21 | 2011-11-21 | Artificial double spawning method for bighead carps |
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| CN2011103720316A CN102487854A (en) | 2011-11-21 | 2011-11-21 | Artificial double spawning method for bighead carps |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104322401A (en) * | 2014-09-01 | 2015-02-04 | 黄平县鸿合综合发展有限公司 | Improved propagation method for spotted silver carps |
| CN104585093A (en) * | 2015-01-14 | 2015-05-06 | 成都市天府新区丹龙渔业养殖专业合作社 | Method for artificially expediting roe parturition |
| CN112825798A (en) * | 2019-11-05 | 2021-05-25 | 楚雄天盛农业发展有限公司 | Method for improving survival rate of fry through plateau special culture |
| CN112825800A (en) * | 2019-11-05 | 2021-05-25 | 楚雄天盛农业发展有限公司 | Culture mode suitable for developing shrimp and crab products by plateau land resources |
| CN112825802A (en) * | 2019-11-05 | 2021-05-25 | 楚雄天盛农业发展有限公司 | Crab seedling cultivation method with plateau characteristics |
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2011
- 2011-11-21 CN CN2011103720316A patent/CN102487854A/en active Pending
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104322401A (en) * | 2014-09-01 | 2015-02-04 | 黄平县鸿合综合发展有限公司 | Improved propagation method for spotted silver carps |
| CN104585093A (en) * | 2015-01-14 | 2015-05-06 | 成都市天府新区丹龙渔业养殖专业合作社 | Method for artificially expediting roe parturition |
| CN112825798A (en) * | 2019-11-05 | 2021-05-25 | 楚雄天盛农业发展有限公司 | Method for improving survival rate of fry through plateau special culture |
| CN112825800A (en) * | 2019-11-05 | 2021-05-25 | 楚雄天盛农业发展有限公司 | Culture mode suitable for developing shrimp and crab products by plateau land resources |
| CN112825802A (en) * | 2019-11-05 | 2021-05-25 | 楚雄天盛农业发展有限公司 | Crab seedling cultivation method with plateau characteristics |
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Application publication date: 20120613 |