CN103918584A - River crab cultivation method - Google Patents
River crab cultivation method Download PDFInfo
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- CN103918584A CN103918584A CN201410104694.3A CN201410104694A CN103918584A CN 103918584 A CN103918584 A CN 103918584A CN 201410104694 A CN201410104694 A CN 201410104694A CN 103918584 A CN103918584 A CN 103918584A
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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
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Abstract
The invention discloses a river crab cultivation method. The method includes: allowing cultivation water conform to the water quality standard regulated by freshwater aquaculture water quality, keeping water temperature at 10-20 DEG C, selecting female crabs larger than 90g and male crabs larger than 130g as parent crabs, raising the female crabs and the male crabs separately, raising the female and male parent crabs in a pond according to a proportion of 2:1, feeding one or more of small prawns and Hemicculter Leuciclus after spawning, sterilizing water with quick lime, and adopting fountain spraying water quality. By the arrangement, the river crab cultivation method as compared with existing cultivation methods has the advantages that the cultivated river crabs are fast in growth, tenacious in vitality, high in weight increasing, and high in disease resistance.
Description
Technical field
The present invention relates to a kind of cultural method of aquatic products, particularly the cultural method of a kind of river crab.
Background technology
Present stage, the culture of Chinese mitten crab industry development of China, the quantity of river crab is also more and more, but its quality problem but obviously declines, as the problems such as meat is loose, fishy smell increases the weight of, volume slight of stature, existing method for breeding river crab simultaneously, the growth rate of river crab is slow, and in breeding process, the environment of river crab growth is not carried out to disease prevention and cure processing, cause the resistance against diseases of river crab to decline to a great extent, disease incidence is higher.
Summary of the invention
The technical problem that the present invention mainly solves is to provide the cultural method of a kind of river crab, can possess and have the feature that growth is fast, vitality is indomitable, weightening finish is large, resistance against diseases is strong.
For solving the problems of the technologies described above, the technical scheme that the present invention adopts is: the cultural method of a kind of river crab is provided, it is characterized in that: concrete cultural method is as follows:
(1), cultivation place: cultivate water meets the water standard of " aquiculture fresh water water quality " regulation, and water temperature remains on 10-20 degree, dissolved oxygen amount >=8 mg/litre, thickness≤the 10mm of mud at the bottom of pond, plantation pasture and water at the bottom of pond, pasture and water are evenly distributed, and pasture and water cultivated area accounts for 70% of sump area;
(2), close crab seed selection: select 90 grams of above female crabs, more than 130 grams male crab as close crab;
(3), close crab is raised: female individuals and male are separately raised, feed taking feed of animal origin as main during this time, vegetable feed is auxiliary, and a day injected volume is the 50-60% of close crab weight.
(4), close crab mating: male and female parent crab is put into pond in the ratio of 2:1 and raise, after 10 days, male crab is caught out, then female crab is carried out to ovigerous crab raising, pulled female crab after 2 months out.
(5), crab seedling rearing: output crab ovum from female crab, grow up to young river crab, in first week, throw something and feed little prawn, alter multiple in bar fish or a kind, throw something and feed every day 6 times, day feeding volume is river crab 90%, in second week, throws something and feeds every day 5 times, day feeding volume is 80% of river crab weight, in the 3rd week, to throw something and feed every day 4 times, a day feeding volume is 70% of river crab weight, in 4th week, throw something and feed every day 3 times, a day feeding volume is 60% of river crab weight, finally extends to the feeding patterns of 4th week the moulding of growing up always.
(6), disease prevention and cure: every 2 time-of-weeks, just use quicklime to pond, pond at the bottom of disinfection, and in pond central authorities, fountain is set, sprayed once every 10 day time.
In a preferred embodiment of the present invention, described basin bottom is furnished with large mesh bag, and described large mesh bag sinks into described mud lower floor.
In a preferred embodiment of the present invention, female crab is being carried out between ovigerous crab feeding period, the animal plant feedstuff of need throwing something and feeding, the ratio of described animal feed and plant feed is classified 3:2 as, and a day feeding volume is 100% of female crab weight.
Beneficial effect of the present invention: the present invention, compared with existing cultural method, possesses and has the feature that growth is fast, vitality is indomitable, weightening finish is large, resistance against diseases is strong.
Embodiment
The present invention will be described in detail below, thereby so that advantages and features of the invention can be easier to be it will be appreciated by those skilled in the art that, protection scope of the present invention is made to more explicit defining.
In an embodiment of the present invention, the cultural method of a kind of river crab, is characterized in that: concrete cultural method is as follows:
(1), cultivation place: cultivate water meets the water standard of " aquiculture fresh water water quality " regulation, and water temperature remains on 10-20 degree, dissolved oxygen amount >=8 mg/litre, thickness≤the 10mm of mud at the bottom of pond, plantation pasture and water at the bottom of pond, pasture and water are evenly distributed, and pasture and water cultivated area accounts for 70% of sump area;
(2), close crab seed selection: select 90 grams of above female crabs, more than 130 grams male crab as close crab;
(3), close crab is raised: female individuals and male are separately raised, feed taking feed of animal origin as main during this time, vegetable feed is auxiliary, and a day injected volume is the 50-60% of close crab weight.
(4), close crab mating: male and female parent crab is put into pond in the ratio of 2:1 and raise, after 10 days, male crab is caught out, then female crab is carried out to ovigerous crab raising, pulled female crab after 2 months out.
(5), crab seedling rearing: output crab ovum from female crab, grow up to young river crab, in first week, throw something and feed little prawn, alter multiple in bar fish or a kind, throw something and feed every day 6 times, day feeding volume is river crab 90%, in second week, throws something and feeds every day 5 times, day feeding volume is 80% of river crab weight, in the 3rd week, to throw something and feed every day 4 times, a day feeding volume is 70% of river crab weight, in 4th week, throw something and feed every day 3 times, a day feeding volume is 60% of river crab weight, finally extends to the feeding patterns of 4th week the moulding of growing up always.
(6), disease prevention and cure: every 2 time-of-weeks, just use quicklime to pond, pond at the bottom of disinfection, and in pond central authorities, fountain is set, sprayed once every 10 day time.
Further illustrate, water quality requirement in cultivation place, water temperature requires and oxygen content requires to make the growing environment of river crab moderate, is applicable to the growth of river crab; Select good close crab mating, the ovum kind kind of output is good again; Then by the different Feeding way of different times, can make that river crab growth is faster and volume is larger; Finally adopt quicklime to pond disinfection, and the mode that adopts fountain to spray, improvement water quality, keeps the oxygen content in water.
In a preferred embodiment of the present invention, described basin bottom is furnished with large mesh bag, and described large mesh bag sinks into described mud lower floor.
Further illustrate, because river crab comparison can be got into the cave, then enter behind hole, more difficult arresting, even flees from pond, therefore below the mud of basin bottom, adopts the mode of large mesh bag, can stop the generation of this phenomenon.
In a preferred embodiment of the present invention, female crab is being carried out between ovigerous crab feeding period, the animal plant feedstuff of need throwing something and feeding, the ratio of described animal feed and plant feed is classified 3:2 as, and a day feeding volume is 100% of female crab weight.
Further illustrate, when female crab is in oogenesis period, adopting animal feed and plant feed ratio is 3:2, can strengthen the nutrient in female crab body, the ovum kind that is female crab discharge is more outstanding, with time feeding volume reach 100% of female crab weight, make the ovum kind volume of discharging larger, thereby further improve the quality of ovum kind.
Be different from prior art, the present invention possesses and has the feature that growth is fast, vitality is indomitable, weightening finish is large, resistance against diseases is strong.
The foregoing is only embodiments of the invention, not thereby limit the scope of the claims of the present invention, every equivalent structure or conversion of equivalent flow process that utilizes description of the present invention to do, or be directly or indirectly used in other relevant technical fields, be all in like manner included in the present invention.
Claims (3)
1. a cultural method for river crab, is characterized in that: concrete cultural method is as follows:
(1), cultivation place: cultivate water meets the water standard of " aquiculture fresh water water quality " regulation, and water temperature remains on 10-20 degree, dissolved oxygen amount >=8 mg/litre, thickness≤the 10mm of mud at the bottom of pond, plantation pasture and water at the bottom of pond, pasture and water are evenly distributed, and pasture and water cultivated area accounts for 70% of sump area;
(2), close crab seed selection: select 90 grams of above female crabs, more than 130 grams male crab as close crab;
(3), close crab is raised: female individuals and male are separately raised, feed taking feed of animal origin as main during this time, vegetable feed is auxiliary, and a day injected volume is the 50-60% of close crab weight;
(4), close crab mating: male and female parent crab is put into pond in the ratio of 2:1 and raise, after 10 days, male crab is caught out, then female crab is carried out to ovigerous crab raising, pulled female crab after 2 months out;
(5), crab seedling rearing: output crab ovum from female crab, grow up to young river crab, in first week, throw something and feed little prawn, alter multiple in bar fish or a kind, throw something and feed every day 6 times, day feeding volume is river crab 90%, in second week, throws something and feeds every day 5 times, day feeding volume is 80% of river crab weight, in the 3rd week, to throw something and feed every day 4 times, a day feeding volume is 70% of river crab weight, in 4th week, throw something and feed every day 3 times, a day feeding volume is 60% of river crab weight, finally extends to the feeding patterns of 4th week the moulding of growing up always;
(6), disease prevention and cure: every 2 time-of-weeks, just use quicklime to pond, pond at the bottom of disinfection, and in pond central authorities, fountain is set, sprayed once every 10 day time.
2. the cultural method of river crab according to claim 1, is characterized in that: described basin bottom is furnished with large mesh bag, and described large mesh bag sinks into described mud lower floor.
3. the cultural method of river crab according to claim 1, is characterized in that: female crab carried out between ovigerous crab feeding period, and the animal plant feedstuff of need throwing something and feeding, the ratio of described animal feed and plant feed is classified 3:2 as, and a day feeding volume is 100% of female crab weight.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201410104694.3A CN103918584A (en) | 2014-03-20 | 2014-03-20 | River crab cultivation method |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201410104694.3A CN103918584A (en) | 2014-03-20 | 2014-03-20 | River crab cultivation method |
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| CN103918584A true CN103918584A (en) | 2014-07-16 |
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| CN201410104694.3A Pending CN103918584A (en) | 2014-03-20 | 2014-03-20 | River crab cultivation method |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104115774A (en) * | 2014-08-06 | 2014-10-29 | 太仓市绿苗农场专业合作社 | River crab breeding method |
| CN104351085A (en) * | 2014-09-30 | 2015-02-18 | 颍上县润海畜禽养殖有限公司 | Breeding method of river crabs |
| CN105379658A (en) * | 2015-11-27 | 2016-03-09 | 苏州市阳澄湖现代农业产业园特种水产养殖有限公司 | River crab farming method |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1826881A (en) * | 2006-04-06 | 2006-09-06 | 江苏省淡水水产研究所 | Method for breeding river crab |
| CN101305699A (en) * | 2008-06-08 | 2008-11-19 | 中国水产科学研究院淡水渔业研究中心 | River crab breeding method |
| CN103314902A (en) * | 2013-06-17 | 2013-09-25 | 苏州市阳澄湖现代农业发展有限公司 | Efficient breeding method for river crabs in pollution-free pond |
| CN103380752A (en) * | 2013-06-28 | 2013-11-06 | 句容市苏苑稻米专业合作社 | River crab ecological breeding model |
-
2014
- 2014-03-20 CN CN201410104694.3A patent/CN103918584A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1826881A (en) * | 2006-04-06 | 2006-09-06 | 江苏省淡水水产研究所 | Method for breeding river crab |
| CN101305699A (en) * | 2008-06-08 | 2008-11-19 | 中国水产科学研究院淡水渔业研究中心 | River crab breeding method |
| CN103314902A (en) * | 2013-06-17 | 2013-09-25 | 苏州市阳澄湖现代农业发展有限公司 | Efficient breeding method for river crabs in pollution-free pond |
| CN103380752A (en) * | 2013-06-28 | 2013-11-06 | 句容市苏苑稻米专业合作社 | River crab ecological breeding model |
Non-Patent Citations (1)
| Title |
|---|
| 王清印等: "《中国水产生物种质资源与利用（第1卷）》", 31 August 2005, 海洋出版社 * |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104115774A (en) * | 2014-08-06 | 2014-10-29 | 太仓市绿苗农场专业合作社 | River crab breeding method |
| CN104351085A (en) * | 2014-09-30 | 2015-02-18 | 颍上县润海畜禽养殖有限公司 | Breeding method of river crabs |
| CN105379658A (en) * | 2015-11-27 | 2016-03-09 | 苏州市阳澄湖现代农业产业园特种水产养殖有限公司 | River crab farming method |
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Application publication date: 20140716 |