CN103947581A - Method for improving synchronous mating of seahorses - Google Patents
Method for improving synchronous mating of seahorses Download PDFInfo
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- CN103947581A CN103947581A CN201410127340.0A CN201410127340A CN103947581A CN 103947581 A CN103947581 A CN 103947581A CN 201410127340 A CN201410127340 A CN 201410127340A CN 103947581 A CN103947581 A CN 103947581A
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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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- 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
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Abstract
The invention discloses a method for improving synchronous mating of seahorses. Due to adjustment on comprehensive factors, such as parent screening (a plurality of seahorses parental populations with a consistent sexual maturation period are screened and separated out according to the sexual maturation degree), domestication and breeding equipment improvement and parental physiological characteristic observation, in a seahorse breeding process, parent seahorses can be promoted to form a stable periodic reproduction for mating, gestation, parturition and remating, so that the parturition rate in the reproduction peak period (a single week) is over 60 percent, and the reproduction efficiency of the seahorses can be effectively improved by over 10 percent.
Description
Technical field:
The invention belongs to hippocampus seedling-cultivating method and technical field, be specifically related to a kind of method that improves the synchronous mating of hippocampus.
Background technology:
Hippocampus belongs to the fish that several times a year lay eggs, oviposition period short (15 to 30 days), the single quantity few (100 to 1000 tail) of laying eggs.Hippocampus reproductive behavior is special, and fertilized egg is hatched to juvenile fish and just lived on one's own life in the brood pouch of hippocampus milter belly trailing edge.Large-scale cultivation hippocampus seedling must rely on a large amount of parent populations to breed simultaneously.In conventional hippocampus seedling raising process, different hippocampus parent populations have uncertainty breeding cycle, and parent population produces young asynchronism(-nization) step, produces young fluctuation quantity large.The producer cannot concentrate targetedly and arrange required production facility and the bait of fry rearing, thereby can greatly increase production cost, reduces production efficiency.
Summary of the invention:
The object of the invention is, in order to solve the asynchronous and low phenomenon of reproductive efficiency of hippocampus parent propagation, also to reduce management difficulty and production cost, a kind of method that improves the synchronous mating of hippocampus is provided simultaneously.This method can promote hippocampus parent population to form the Periodical Reproduction of stable " children-mating again of mating-gestation-product ".The present invention realizes and produces young rate more than 60% at Period of reproductive peak (single-revolution), and the reproductive efficiency that can effectively improve hippocampus more than 10% simultaneously.
The method of the synchronous mating of raising hippocampus of the present invention, is characterized in that, comprises the following steps:
The screening of a, parent population: reached after the more than 6 monthly ages while, female parent population sexual mature rate reached more than 20% and start to carry out the screening of male and female parent population hippocampus, every 5-10 days selects once, forms the hippocampus parental population of some batches of sexual maturity time consistencies;
Milter parent: select body and grow up in 12cm, body surface is mellow and full, and vigor is good, ingests active, and the high hippocampus milter of the rate of oestrusing is as parent population; When milter oestruses, show as: rhynchodaenm is close to belly, side skin shoals and bleaches, and dorsal part and veutro dermal melanin are assembled, and has the performance of initiatively seeking a spouse.
Raun parent: select body and grow up in 10cm, body surface is mellow and full, ingests active, and the sexual maturity hippocampus raun of belly both sides protuberance is as parent population; Obviously expand due to the development of ovary in sexually matured female hippocampus belly both sides, belly left and right body is wide accompanies for the wide 1.5-2 of regular, cloacal aperture evagination.
B, parent population maintenance: the specification of the breeding bucket that parent population cultivation adopts is volume 200～500L, height 60～100cm, circle or Square barrel all can, breeding barrel is placed the attachment that can hide and be wound around for hippocampus, each breeding bucket is put 10～30 tail hippocampus parent populations, female-male proportion 1:1～2, parent population is fed taking freezing fishes and shrimps as main, and living body bait is auxiliary; In parent population breeding process, control breeding environment stable.
The inspection of c, parent population fertility and reallocation: parent population is put into after breeding bucket, continue parent population fertility and breeding cycle uniformity check and determine, check first parent population and put into breeding bucket after 5-10 days, check the conceived state of hippocampus milter and the gonad development level of raun, the hippocampus that has neither part nor lot in mating is retracted to alternative parent pond, in final maintenance breeding bucket, female, the male ratio of hippocampus is between 1:1～1.5, judge parent population whether mating according to being: the male parent population happiness of post-coitum is quiet, and brood pouch swells; The raun belly of post-coitum is significantly become thin, and even forms depression, again checks it is to start to produce after children parent population, produces children's time between colony, carry out sub-distribution again according to milter, makes each crowd of parent possess higher breeding synchronism.
Described living body bait can be oppossum shrimp, shrimp seedling or fairy shrimp etc.
The adjustment of the present invention to composite factors such as parental line selection in hippocampus breeding process (isolating the consistent hippocampus parental population of some sexual maturation cycles according to sexual maturity degree screening) and domestication, cultivation equipment improvement, the observations of parent's physiological characteristic, promote hippocampus parent population to form the Periodical Reproduction of stable " children-mating again of mating-gestation-product ", realize and produce young rate more than 60% at Period of reproductive peak (single-revolution), the reproductive efficiency that can effectively improve hippocampus more than 10% simultaneously.
The present invention has easy to operate, and the advantage that controllability is strong is applicable to large-scale commercialization hippocampus cultivation.
Brief description of the drawings:
Fig. 1 is experimental group in embodiment 1 and the number of times of the production weekly figure of control group, and wherein solid squares represents the experimental group of embodiment 1, and hollow circle represents the control group of embodiment 1.
Embodiment:
Following examples are to further illustrate of the present invention, instead of limitation of the present invention.
Embodiment 1:
Experimental group:
In April, 2013-June, in Shenzhen City, Guangdong Province Chinese Academy of Science Nanhai Ocean Research Institute hippocampus cultivation base.
(1) screening of parent population
Reach more than 6 monthly ages after female parent population sexual mature rate reaches more than 20% hippocampus simultaneously,, between breeding period, start to carry out the screening of male and female parent population.The ratio that is 1:2 according to female, male ratio is selected hippocampus parent population 300 tails for subsequent use, and puts into 2 cement pits (the wide * of long * high=3m*6m*1.2m) and carry out male and female and separate temporarily and support.
Select milter parent and raun parent according to following standard
Milter parent: select body and grow up in 12cm, body surface is mellow and full, and vigor is good, ingests active, and the high hippocampus milter of the rate of oestrusing is as parent population.When milter oestruses, show as: rhynchodaenm is close to belly, side skin shoals and bleaches, and dorsal part and veutro dermal melanin are assembled, and has the performance of initiatively seeking a spouse.
Raun parent: select body and grow up in 10cm, body surface is mellow and full, ingests active, and the hippocampus raun of belly both sides protuberance is as parent population.Obviously expand due to the development of ovary in sexually matured female hippocampus belly both sides, belly left and right body is wide accompanies for the wide 1.5-2 of regular, cloacal aperture evagination.
Within every 7 days, carry out once female, milter parent and select, pick out altogether 3 batches of (have respectively 4 barrels, 2 barrels, 2 barrels) hippocampus parent fish populations, every barrel of milter 12 tail and raun 6 tails, add up to 144 tails.
(2) parent population maintenance
All parent populations are placed on blue circular plastic bucket (base diameter 80cm, height 80cm) breeding bucket in feed, every barrel of milter 12 tail and raun 6 tails, female-male proportion is 1:2, utilize plastics pasture and water as attachment, hide and be wound around for hippocampus, bait adopts freezing oppossum shrimp and live body fairy shrimp, throws something and feeds according to the number of days ratio of 5:2.Absorb residual bait and ight soil every day.Relevant environment parameter is: water temperature 23-28 DEG C, and maximum illumination 2000-3000lux, pH value 7.8-8.1, salinity 30-35, ammonia nitrogen concentration is not higher than 0.01mg/L.
(3) inspection of parent population fertility and reallocation
Parent population is put into after breeding bucket, continues parent population fertility and breeding cycle uniformity check and determine.Check first parent population and put into breeding bucket latter the 7th day, check the conceived state of hippocampus milter and the gonad development level of raun, female, the male hippocampus that has neither part nor lot in mating is retracted to alternative parent pond, obtain parent population 120 tails (female, male than 1:1.2).Judge parent population whether mating according to being: the male parent population happiness of post-coitum is quiet, and brood pouch swells; The raun belly of post-coitum is significantly become thin, and even forms depression.Again check it is to start to produce after children parent population, produce children's time according to milter and between 3 colonies, carry out sub-distribution again, further to improve every crowd of parent's breeding synchronism.
Control group
Between hippocampus breeding period, the ratio that is 1:2 according to female, male ratio is selected and is reached sexually matured hippocampus parent population 120 tails, is divided into 3 groups and put into 3 cement pits (the wide * of long * high=3m*6m*1.2m) and cultivate.Utilize plastics pasture and water as attachment, bait adopts freezing oppossum shrimp and live body fairy shrimp, throws something and feeds according to the number of days ratio of 5:2.Absorb residual bait and ight soil every day.Relevant environment parameter is: water temperature 23-28 DEG C, and maximum illumination 2000-3000lux, pH value 7.8-8.1, salinity 30-35, ammonia nitrogen concentration is not higher than 0.01mg/L.
Result
Result as shown in Figure 1, goes out significant breeding synchronism according to the present embodiment through screening hippocampus parental performance later, and forms 3 significant production peaks.Produce children batch at Period of reproductive peak (single-revolution) and account for 65.8% of young batch of total product, be significantly greater than control group 36.3%.Meanwhile, the single reproductive efficiency of every pair of hippocampus of experimental group be 227 tails/time, be significantly higher than single reproductive efficiency 187 tails/tire of every pair of hippocampus of control group.It is 82 times that experimental group is produced children batch, is significantly higher than control group 43 times.
Claims (2)
1. a method that improves the synchronous mating of hippocampus, is characterized in that, comprises the following steps:
The screening of a, parent population: reached after the more than 6 monthly ages while, female parent population sexual mature rate reached more than 20% and start to carry out the screening of male and female parent population hippocampus, every 5-10 days selects once, forms the hippocampus parental population of some batches of sexual maturity time consistencies;
Milter parent: select body and grow up in 12cm, body surface is mellow and full, and vigor is good, ingests active, and the high hippocampus milter of the rate of oestrusing is as parent population;
Raun parent: select body and grow up in 10cm, body surface is mellow and full, ingests active, and the sexual maturity hippocampus raun of belly both sides protuberance is as parent population;
B, parent population maintenance: the specification of the breeding bucket that parent population cultivation adopts is volume 200～500L, height 60～100cm, breeding barrel is placed the attachment that can hide and be wound around for hippocampus, each breeding bucket is put 10～30 tail hippocampus parent populations, female-male proportion 1:1～2, parent population is fed taking freezing fishes and shrimps as main, and living body bait is auxiliary;
C, the inspection of parent population fertility and reallocation: parent population is put into after breeding bucket, continue parent population fertility and breeding cycle uniformity check and determine, check first parent population and put into breeding bucket after 5-10 days, check the conceived state of hippocampus milter and the gonad development level of raun, the hippocampus that has neither part nor lot in mating is retracted to alternative parent pond, in final maintenance breeding bucket, hippocampus is female, male ratio is between 1:1～1.5, again check it is to start to produce after children parent population, produce children's time according to milter and between colony, carry out sub-distribution again, make each crowd of parent possess higher breeding synchronism.
2. method according to claim 1, is characterized in that, described living body bait is oppossum shrimp, shrimp seedling or fairy shrimp.
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104542408A (en) * | 2015-02-04 | 2015-04-29 | 南通中国科学院海洋研究所海洋科学与技术研究发展中心 | Method for synchronous line establishment of small-population parents in artificial breeding of exopalaemon carinicauda |
| CN105028276A (en) * | 2015-07-09 | 2015-11-11 | 中国科学院南海海洋研究所 | Crossbreeding method of hippocampus kelloggi and hippocampus trimaculatus |
| CN108770734A (en) * | 2018-03-23 | 2018-11-09 | 中国水产科学研究院东海水产研究所 | A kind of extensive grey hippocampus parent's hippocampus matching method |
| CN114009374A (en) * | 2021-09-03 | 2022-02-08 | 中国水产科学研究院东海水产研究所 | Breeding method for promoting reproduction of male parent fish of Hippocampus japonicus in production stoppage |
| CN114747515A (en) * | 2022-04-24 | 2022-07-15 | 广东聚石科技研究有限公司 | Method for promoting mating of hippocampus |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104642228B (en) * | 2015-03-09 | 2017-05-24 | 中国科学院南海海洋研究所 | Breeding method for rapid growth strain of Hippocampus kelloggi |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN104542408A (en) * | 2015-02-04 | 2015-04-29 | 南通中国科学院海洋研究所海洋科学与技术研究发展中心 | Method for synchronous line establishment of small-population parents in artificial breeding of exopalaemon carinicauda |
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| CN108770734A (en) * | 2018-03-23 | 2018-11-09 | 中国水产科学研究院东海水产研究所 | A kind of extensive grey hippocampus parent's hippocampus matching method |
| CN114009374A (en) * | 2021-09-03 | 2022-02-08 | 中国水产科学研究院东海水产研究所 | Breeding method for promoting reproduction of male parent fish of Hippocampus japonicus in production stoppage |
| CN114009374B (en) * | 2021-09-03 | 2023-04-11 | 中国水产科学研究院东海水产研究所 | Breeding method for promoting reproduction of male parent fish of Hippocampus japonicus in production stoppage |
| CN114747515A (en) * | 2022-04-24 | 2022-07-15 | 广东聚石科技研究有限公司 | Method for promoting mating of hippocampus |
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