CN108782385A - A kind of cultural method of Macrobrachium rosenbergii seedling - Google Patents

A kind of cultural method of Macrobrachium rosenbergii seedling Download PDF

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Publication number
CN108782385A
CN108782385A CN201810520401.8A CN201810520401A CN108782385A CN 108782385 A CN108782385 A CN 108782385A CN 201810520401 A CN201810520401 A CN 201810520401A CN 108782385 A CN108782385 A CN 108782385A
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CN
China
Prior art keywords
days
seedling
shrimp
reduced
shrimp seedling
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Pending
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CN201810520401.8A
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Chinese (zh)
Inventor
毛觉生
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Suzhou Maoshi Yangcheng Lake Aquatic Development Co Ltd
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Suzhou Maoshi Yangcheng Lake Aquatic Development Co Ltd
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Application filed by Suzhou Maoshi Yangcheng Lake Aquatic Development Co Ltd filed Critical Suzhou Maoshi Yangcheng Lake Aquatic Development Co Ltd
Priority to CN201810520401.8A priority Critical patent/CN108782385A/en
Publication of CN108782385A publication Critical patent/CN108782385A/en
Pending legal-status Critical Current

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Classifications

    • AHUMAN NECESSITIES
    • A01AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01KANIMAL HUSBANDRY; CARE OF BIRDS, FISHES, INSECTS; FISHING; REARING OR BREEDING ANIMALS, NOT OTHERWISE PROVIDED FOR; NEW BREEDS OF ANIMALS
    • A01K61/00Culture of aquatic animals
    • A01K61/50Culture of aquatic animals of shellfish
    • A01K61/59Culture of aquatic animals of shellfish of crustaceans, e.g. lobsters or shrimps
    • 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 present invention relates to a kind of cultural methods of Macrobrachium rosenbergii seedling, it includes the following steps:(a)The salinity for controlling water in nursery pond, the shrimp seedling young that strainer is fished for is transferred to wherein, and it is 8 ~ 120,000 tails/m to control density3;Fairy shrimp nauplius is fed, 4 ~ 8 h are fed once;After the shrimp seedling larval culture 7 ~ 10 days, increases before feeding fairy shrimp nauplius and feed egg custard;After the shrimp seedling larval culture 15 ~ 18 days, also increases and feed prawn slice;The feeding volume of fairy shrimp nauplius, egg custard and prawn slice is subject to the shrimp seedling young 1h and is eaten up;The salinity of water starts to be 6 ~ 7 ‰ in the nursery pond, and 4 ~ 5 ‰ are reduced to after cultivating 6 ~ 7 days, and 2.5 ~ 3 ‰ are reduced to after cultivating 12 ~ 13 days, and 1 ~ 2 ‰ are reduced to after cultivating 18 ~ 19 days;(b)It will emerge after the shrimp seedling larval culture 20 ~ 22 days.Can improve in this way the shrimp seedling young to the adaptation of fresh water can, to improve the survival rate of Macrobrachium rosenbergii;And cost can be reduced.

Description

A kind of cultural method of Macrobrachium rosenbergii seedling
Technical field
The invention belongs to aquatic products nursery fields, are related to a kind of method for culturing seedlings of Macrobrachium rosenbergii, and in particular to a kind of Roche The cultural method of pond crayfish seedling.
Background technology
Aquatic products refer to animal and its converted products of ocean and fresh water fishery production.Fresh and living aquatic products, be divided into fish, shrimp, Crab, four major class of shellfish.Aquaculture is the production activity of the lower breeding of artificial control, cultivation and harvest aquatic animals and plants, and aquatic products is supported It is typically to raise the aquatic products seedling of purchase to certain size and sell to grow family.Aquatic products are needed in cultivation using prebiotic Bacterium, vitamin etc. are to improve the resistance of aquatic products, harmful microbe in pool is inhibited to breed.Existing prebiotic promotor composition After being spilled into pool, it is easy to cause the drastically decline of the transparency and finish of water body, this can influence the growth and development of aquatic products.
Invention content
The technical problem to be solved in the invention is a kind of training of the Macrobrachium rosenbergii seedling proposed in view of the above technical problems The method of supporting.
In order to achieve the above objectives, the technical solution adopted in the present invention is:A kind of cultural method of Macrobrachium rosenbergii seedling, it Include the following steps:
(a)The salinity for controlling water in nursery pond, the shrimp seedling young that strainer is fished for is transferred to wherein, and it is 8 ~ 120,000 to control density Tail/m3;Fairy shrimp nauplius is fed, 4 ~ 8 h are fed once;It is rich feeding after the shrimp seedling larval culture 7 ~ 10 days Increase before year worm nauplius and feeds egg custard;After the shrimp seedling larval culture 15 ~ 18 days, also increases and feed prawn slice;Good year The feeding volume of worm nauplius, egg custard and prawn slice is subject to the shrimp seedling young 1h and is eaten up;The salinity of water in the nursery pond Start to be 6 ~ 7 ‰, 4 ~ 5 ‰ are reduced to after cultivating 6 ~ 7 days, 2.5 ~ 3 ‰ are reduced to after cultivating 12 ~ 13 days, it is reduced to 1 after cultivating 18 ~ 19 days ~ 2‰;
(b)It will emerge after the shrimp seedling larval culture 20 ~ 22 days;
Step(a)And step(b)In, water temperature is 31 ~ 32 DEG C in the nursery pond, and dissolved oxygen is 5.5 ~ 5.8mg/L.
Optimally, step(a)In, the strainer is 160 ~ 180 mesh.
Optimally, step(a)In, during only feeding fairy shrimp nauplius, also it is separately added into the dimension of 500 ~ 1000ppm Raw element C and chitosan.
Since above-mentioned technical proposal is used, the present invention has following advantages compared with prior art:Macrobrachium rosenbergii of the present invention The cultural method of seedling passes through the adjustment of the synchronous adjustment and bait for carrying out salinity in shrimp seedling young incubation, such energy Enough improve the shrimp seedling young to the adaptation of fresh water can, to improve the survival rate of Macrobrachium rosenbergii;And cost can be reduced.
Specific implementation mode
The cultural method of Macrobrachium rosenbergii seedling of the present invention, it includes the following steps:(a)The salinity of water in nursery pond is controlled, The shrimp seedling young that strainer is fished for is transferred to wherein, and it is 8 ~ 120,000 tails/m to control density3;Feed fairy shrimp nauplius, 4 ~ 8 H is fed once;After the shrimp seedling larval culture 7 ~ 10 days, increases before feeding fairy shrimp nauplius and feed egg custard; After the shrimp seedling larval culture 15 ~ 18 days, also increases and feed prawn slice;Fairy shrimp nauplius, egg custard and prawn slice are fed Amount is subject to the shrimp seedling young 1h and is eaten up;The salinity of water starts to be 6 ~ 7 ‰ in the nursery pond, it is reduced to 4 after cultivating 6 ~ 7 days ~ 5 ‰, it is reduced to 2.5 ~ 3 ‰ after cultivating 12 ~ 13 days, 1 ~ 2 ‰ are reduced to after cultivating 18 ~ 19 days;(b)By the shrimp seedling larval culture 20 ~ It emerges after 22 days;Step(a)And step(b)In, water temperature is 31 ~ 32 DEG C in the nursery pond, and dissolved oxygen is 5.5 ~ 5.8mg/ L.Can improve in this way the shrimp seedling young to the adaptation of fresh water can, to improve the survival rate of Macrobrachium rosenbergii;And it can reduce Cost.Step(a)In, the strainer is 160 ~ 180 mesh.Step(a)In, during only feeding fairy shrimp nauplius, also divide Not Jia Ru 500 ~ 1000ppm vitamin C and chitosan.
The preferred embodiment of the invention will be described in detail below.
Embodiment 1
The present embodiment provides a kind of cultural methods of Macrobrachium rosenbergii seedling, it includes the following steps:
(a)The salinity for controlling water in nursery pond is 7 ‰(Water temperature is also 31 ~ 32 DEG C in nursery pond, and dissolved oxygen is 5.5 ~ 5.8mg/L), The shrimp seedling young fished for the strainer of 160 ~ 180 mesh is simultaneously transferred to wherein, and control cultivation density is 8 ~ 120,000 tails/m3;Respectively plus The vitamin C and chitosan for entering 500ppm, feed fairy shrimp nauplius, and 4 ~ 8 h are fed once;By nursery pond after cultivating 6 days The salinity of middle water is reduced to 5 ‰, continues after cultivating 1 day, increases before feeding fairy shrimp nauplius and feeds egg custard(Egg custard and The mass ratio of fairy shrimp is 1:1, feeding volume is subject to shrimp seedling young 1h and is eaten up, similarly hereinafter);Continue to cultivate 5 days, salinity is reduced to 3‰;Again after 3 days, also increases and feed prawn slice(Prawn slice, egg custard and the mass ratio of fairy shrimp are 1:1:1);Again after 3 days, salinity drop It is 13 ‰;
(b)It emerges after shrimp seedling larval culture is added up to 20 days.
Embodiment 2
The present embodiment provides a kind of cultural method of Macrobrachium rosenbergii seedling, it with it is almost the same in embodiment 1, unlike: Step(a)In, the vitamin C and chitosan of addition are respectively 1000ppm.
Embodiment 3
The present embodiment provides a kind of cultural method of Macrobrachium rosenbergii seedling, it with it is almost the same in embodiment 1, unlike: Step(a)In, the vitamin C and chitosan of addition are respectively 800ppm.
Comparative example 1
This example provides a kind of cultural method of Macrobrachium rosenbergii seedling, it with it is almost the same in embodiment 1, unlike:Step (d)In do not carry out salinity gradient reduce;But in step(e)In, it emerges after being desalinated.
Comparative example 2
This example provides a kind of cultural method of Macrobrachium rosenbergii seedling, it with it is almost the same in embodiment 1, unlike:Step (d)In, the vitamin C that is only added.
Comparative example 3
This example provides a kind of cultural method of Macrobrachium rosenbergii seedling, it with it is almost the same in embodiment 1, unlike:Step (d)In, the vitamin C and chitosan that are not added.
The survival rate of Macrobrachium rosenbergii seedling in embodiment 1-3, comparative example 1-3 is measured, survival rate=(Total juvenile prawn The dead juvenile prawn number of number-)/ total juvenile prawn number × 100%, respectively 94.5%, 94.0%, 96.0%, 92.5%, 92.0% and 90%.
The above embodiments merely illustrate the technical concept and features of the present invention, and its object is to allow person skilled in the art Scholar cans understand the content of the present invention and implement it accordingly, and it is not intended to limit the scope of the present invention.It is all according to the present invention Equivalent change or modification made by Spirit Essence, should be covered by the protection scope of the present invention.

Claims (3)

1. a kind of cultural method of Macrobrachium rosenbergii seedling, which is characterized in that it includes the following steps:
(a)The salinity for controlling water in nursery pond, the shrimp seedling young that strainer is fished for is transferred to wherein, and it is 8 ~ 120,000 to control density Tail/m3;Fairy shrimp nauplius is fed, 4 ~ 8 h are fed once;It is rich feeding after the shrimp seedling larval culture 7 ~ 10 days Increase before year worm nauplius and feeds egg custard;After the shrimp seedling larval culture 15 ~ 18 days, also increases and feed prawn slice;Good year The feeding volume of worm nauplius, egg custard and prawn slice is subject to the shrimp seedling young 1h and is eaten up;The salinity of water in the nursery pond Start to be 6 ~ 7 ‰, 4 ~ 5 ‰ are reduced to after cultivating 6 ~ 7 days, 2.5 ~ 3 ‰ are reduced to after cultivating 12 ~ 13 days, it is reduced to 1 after cultivating 18 ~ 19 days ~ 2‰;
(b)It will emerge after the shrimp seedling larval culture 20 ~ 22 days;
Step(a)And step(b)In, water temperature is 31 ~ 32 DEG C in the nursery pond, and dissolved oxygen is 5.5 ~ 5.8mg/L.
2. the cultural method of Macrobrachium rosenbergii seedling according to claim 1, it is characterised in that:Step(a)In, the strainer is 160 ~ 180 mesh.
3. the cultural method of Macrobrachium rosenbergii seedling according to claim 1, it is characterised in that:Step(a)In, it is rich only feeding During year worm nauplius, it is also separately added into the vitamin C and chitosan of 500 ~ 1000ppm.
CN201810520401.8A 2018-05-28 2018-05-28 A kind of cultural method of Macrobrachium rosenbergii seedling Pending CN108782385A (en)

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109937932A (en) * 2019-04-19 2019-06-28 林子川 Bionical fresh water Penaeus Vannmei parent shrimp selection
CN110419477A (en) * 2019-09-02 2019-11-08 苏州市毛氏阳澄湖水产发展有限公司 A kind of cultural method of Macrobrachium rosenbergii seedling

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CN102415345A (en) * 2011-08-31 2012-04-18 华南师范大学 Method for cultivating macrobrachium rosenbergii offspring seed by using aquatic ozone culture system
CN103704161A (en) * 2014-01-14 2014-04-09 扬州市嘉丰罗氏沼虾良种繁殖有限公司 Giant freshwater prawn breeding method
CN104938378A (en) * 2015-06-03 2015-09-30 广西壮族自治区水产科学研究院 Ecological young shrimp culture method for macrobrachium rosenbergii

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Publication number Priority date Publication date Assignee Title
WO2008137065A1 (en) * 2007-05-04 2008-11-13 Marical, Inc. Methods of raising crustaceans in low salinity water
CN102415345A (en) * 2011-08-31 2012-04-18 华南师范大学 Method for cultivating macrobrachium rosenbergii offspring seed by using aquatic ozone culture system
CN103704161A (en) * 2014-01-14 2014-04-09 扬州市嘉丰罗氏沼虾良种繁殖有限公司 Giant freshwater prawn breeding method
CN104938378A (en) * 2015-06-03 2015-09-30 广西壮族自治区水产科学研究院 Ecological young shrimp culture method for macrobrachium rosenbergii

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109937932A (en) * 2019-04-19 2019-06-28 林子川 Bionical fresh water Penaeus Vannmei parent shrimp selection
CN109937932B (en) * 2019-04-19 2021-06-01 林子川 Breeding method of bionic parent freshwater penaeus vannamei boone
CN110419477A (en) * 2019-09-02 2019-11-08 苏州市毛氏阳澄湖水产发展有限公司 A kind of cultural method of Macrobrachium rosenbergii seedling

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Application publication date: 20181113