CN105994030A - Method for improving eriocheir sinensis juvenile survival rate - Google Patents
Method for improving eriocheir sinensis juvenile survival rate Download PDFInfo
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- CN105994030A CN105994030A CN201610325992.4A CN201610325992A CN105994030A CN 105994030 A CN105994030 A CN 105994030A CN 201610325992 A CN201610325992 A CN 201610325992A CN 105994030 A CN105994030 A CN 105994030A
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- eriocheir sinensis
- pond
- survival rate
- breed
- megalops
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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 relates to a method for improving eriocheir sinensis juvenile survival rate. The method comprises the following steps: firstly, 8-10 days before megalops are stocked in a pond, the water in the pond is fertilized with a fertilizer; secondly, 3-5 days before the megalops are stocked in the pond, an EM bacteria original stock dilution liquid is applied once; thirdly, 8-10h before the megalops are stocked in the pond, an aerator is turned on, and continuous aeration is carried out; the aerator is turned off when the megalops are stocked; fourthly, after the megalops molt into I-stage juveniles, minced fish with added ecdysone is used for feeding; fifthly, from the I-stage juvenile stage to the end of III-stage juvenile metamorphosis, the EM bacteria original stock dilution liquid is applied once every 2 days. The method provided by the invention is simple and feasible to operate. With the method, eriocheir sinensis juvenile stage survival rate can be improved by more than 20%.
Description
Technical field
The present invention relates to a kind of Eriocheir sinensis kind breeding method, be specifically related to a kind of Juvenile Crab Eriocheir Sinensis that improves and become
The method of motility rate.
Background technology
Eriocheir japonica sinensis, is commonly called as crab, steamed crab, is distributed mainly on China's ChangJiang River, Liaohe River water system, the Oujiang River water
In the three big fresh water water systems such as system, it it is the Important Economic breed variety of China's fresh water fishery.Crab as the treasure in aquatic products,
Its delicious flavour, nutritious, deeply by the eating of people.Through the development of nearly 40 years, China crab bred from juvenile crab, Eriocheir sinensis
Plant cultivation, one-tenth Eriocheir sinensis cultivates, arrive into Eriocheir sinensis deep processing again, foreign exchange earning has defined firm industrial chain, it has also become various places are agriculture
Increase income, one of main path that agriculture (fishing) people get rich.But, in the Growth starting stage, i.e. put in a suitable place to breed from megalops larva
Start to pond through first time shell to I phase son Eriocheir sinensis, shell for the second time to II phase son Eriocheir sinensis, shell for the third time to III phase son Eriocheir sinensis,
Cumulative mortality is up to 50%-70%, through the 4th shell become children the Eriocheir sinensis stage, after the 5th shell is V phase children Eriocheir sinensis until
Growth completes, and cumulative mortality is usually 10%-30%, and children's Eriocheir sinensis stage younger Eriocheir sinensis population mortality is greatly reduced, therefore
The survival rate farthest improving the young Eriocheir sinensis stage will be obviously improved final Eriocheir sinensis kind per mu yield.In prior art, the young Eriocheir sinensis stage
Management is generally only throws something and feeds 0#Opening mixed feed (crude protein content about 42%), cause young Eriocheir sinensis population mortality high and
Shell is irregular, may be simultaneously present I phase, II phase, III phase son Eriocheir sinensis, affects Eriocheir sinensis kind yield the most at last.
Summary of the invention
For solving the problems referred to above, overcoming the deficiency in existing Juvenile Crab Eriocheir Sinensis Cultivating techniques, the present invention provides a kind of
The method improving Juvenile Crab Eriocheir Sinensis survival rate, farthest increases Eriocheir sinensis kind per mu yield.
To achieve these goals, the design technology project of the present invention is as follows:
A kind of method improving Juvenile Crab Eriocheir Sinensis survival rate, it is characterised in that comprise the following steps:
First, before megalops larva puts pond in a suitable place to breed, 8-10 day applying fertilizer carries out rich water；
Secondly, megalops larva uses 1 EM bacterium former dew diluent 3-5 day before putting pond in a suitable place to breed；
3rd, before megalops larva puts pond in a suitable place to breed, 8-10h opens the lasting oxygen supplement of aerator, and megalops larva closes oxygen supplement after putting in a suitable place to breed
Machine；
4th, after megalops larva shell to I phase son Eriocheir sinensis, start to throw something and feed and add the minced fish of ecdyson；
Until III phase son Eriocheir sinensis metamorphosis terminates after 5th, I phase son Eriocheir sinensis, used 1 EM bacterium former dew diluent every 2 days.
A kind of above-mentioned method improving Juvenile Crab Eriocheir Sinensis survival rate, it is characterised in that described applying fertilizer is abundant
The fertilizer (duck excrement, pig manure are preferred) fermented, amount of application is 40-60kg/667m2, application process is uniformly to splash in full pond.
A kind of above-mentioned method improving Juvenile Crab Eriocheir Sinensis survival rate, it is characterised in that described megalops larva puts pond in a suitable place to breed
Using EM bacterium before the pool 3-5 day is 50 times of former dew diluents, and amount of application is 1.5-2.0kg/667m2, application process is that full pond is equal
Even splash.
A kind of above-mentioned method improving Juvenile Crab Eriocheir Sinensis survival rate, it is characterised in that described megalops larva puts pond in a suitable place to breed
Before the pool, 8-10h continues oxygen supplement, it is ensured that water dissolved oxygen amount is more than 5mg/L.
A kind of above-mentioned method improving Juvenile Crab Eriocheir Sinensis survival rate, it is characterised in that described in interpolation of throwing something and feeding cast off a skin sharp
Element minced fish be that the frost wild fishes after cooking blends mixing with ecdyson through pulper and makes, every day, feeding volume was
1.2-1.5kg/667m2, every day, equivalent was thrown something and fed 3 times, respectively during 10:00,15:00 time, 19:00 time, feeding method is complete
Uniformly splash in pond.
A kind of above-mentioned method improving Juvenile Crab Eriocheir Sinensis survival rate, it is characterised in that described in minced fish add
Ecdyson is Cyanotis arachnoides P.E, and the ratio being added in minced fish is 0.1%.
A kind of above-mentioned method improving Juvenile Crab Eriocheir Sinensis survival rate, it is characterised in that after described I phase son Eriocheir sinensis until
It is 100 times of former dew diluents that III phase son Eriocheir sinensis metamorphosis terminated to use 1 EM bacterium every 2 days, and application dosage is 1.0-1.5
kg/667m2, application process is uniformly to splash in full pond.
Beneficial effects of the present invention:
The present invention is mainly by improving the Juvenile Crab Eriocheir Sinensis stage to the regulation and control of water environment and optimizing of forage compounding
Survival rate.Before megalops larva puts pond in a suitable place to breed, abundant rich water, promotes plankton rapid, high volume to multiply, and meets megalops larva
Energy source needed for shell, uses nutrient substance more horn of plenty and adds the minced fish of ecdyson to promote young Eriocheir sinensis shell
Smoothly completing, and make shell synchronization, water EM bacterium of periodically splashing can significantly reduce water because of fertilizer and the remaining institute of bait
The harmful substances such as the too much ammonia nitrogen of generation, nitrite.The present invention is easy to operation, can be effectively improved Eriocheir sinensis
The survival rate more than 20% in young Eriocheir sinensis stage.
Detailed description of the invention
For the technological means making the present invention realize, creation characteristic, reach purpose and effect it is more readily appreciated that combine concrete
Embodiment, is further elaborated.
Embodiment
A kind of method improving Juvenile Crab Eriocheir Sinensis survival rate, it is characterised in that comprise the following steps:
First, use the fertilizer (duck excrement, pig manure etc.) fully fermented before megalops larva puts pond in a suitable place to breed 8-10 day to enter
Row rich water, fertilizer is fermented play deodorization, become thoroughly decomposed, parasite killing, effect of sterilizing, it is to avoid apply polluted water in water,
Uniformly splashing in the full pond of institute's application of organic fertilizers, amount of application is 40-60kg/667m2；
Secondly, megalops larva uses 1 50 times of EM bacterium former dew diluent 3-5 day before putting pond in a suitable place to breed, be EM bacterium
Former dew is mixed homogeneously by 1: 49 with water, and application dosage is 1.5-2.0kg/667m2, application process is uniformly to splash in full pond, EM
Bacterium can effectively remove the poisonous and harmful substances such as water ammonia nitrogen that fertilizer caused, nitrite, sulfide, prevents big eye children
Body is poisoned and is reduced survival rate；
3rd, before megalops larva puts pond in a suitable place to breed, 8-10h opens the lasting oxygen supplement of aerator, it is ensured that water dissolved oxygen amount reaches 5mg/L
Above, prevent under megalops larva, behind the pool, being not suitable with low dissolved oxygen water quality, this is because megalops larva takes to continue in desalination process
Oxygen supplement pattern, keeps similar dissolved oxygen condition to be more beneficial for it and adapts to pond condition as early as possible, improve survival rate after putting pond in a suitable place to breed.
Megalops larva closes oxygen supplement facility after putting pond in a suitable place to breed, and to prevent it from tending near oxygen supplement mouth, a large amount of gathering is difficult to dispersion, unfavorable
In surviving；
4th, after megalops larva shell to I phase son Eriocheir sinensis, possess the life habit similar with becoming Eriocheir sinensis, can ingest artificial
The bait thrown something and fed, by ecdyson powder (Cyanotis arachnoides P.E) with cook after frost wild fishes mix in the ratio of 1: 999,
Then using pulper to blend and make minced fish, every day, feeding volume was 1.2-1.5kg/667m2, every day, equivalent was thrown something and fed 3 times, respectively
For 10:00 time, 15:00 time, 19:00 time, feeding method is uniformly to splash in full pond.
Until III phase son Eriocheir sinensis metamorphosis terminates after 5th, I phase son Eriocheir sinensis, used 1 100 times of former dew of EM bacterium every 2 days
Diluent, is the former dew of EM bacterium and mixs homogeneously by 1: 99 with water, and application dosage is 1.0-1.5kg/667m2, application process is
Uniformly splash in full pond.EM bacterium can effectively remove minced fish residual and young Eriocheir sinensis Excreta is caused water ammonia nitrogen, nitrite, sulfur
The poisonous and harmful substances such as compound, prevent young Eriocheir sinensis poisoning, reduce survival rate.
Part that the present invention does not relate to is the most same as the prior art maybe can use prior art to be realized.
More than display describes the ultimate principle of the present invention, principal character and advantages of the present invention.The technology people of the industry
Member, it should be appreciated that the present invention is not restricted to the described embodiments, simply illustrates this described in above-described embodiment and description
Bright principle, the present invention also has various changes and modifications without departing from the spirit and scope of the present invention, these changes
Both fall within scope of the claimed invention with improvement.Claimed scope by appending claims and etc.
Jljl is defined.
Claims (7)
1. the method improving Juvenile Crab Eriocheir Sinensis survival rate, it is characterised in that comprise the following steps:
First, before megalops larva puts pond in a suitable place to breed, 8-10 day applying fertilizer carries out rich water；
Secondly, megalops larva uses 1 EM bacterium dilution of stock 3-5 day before putting pond in a suitable place to breed；
3rd, before megalops larva puts pond in a suitable place to breed, 8-10h opens the lasting oxygen supplement of aerator, and megalops larva closes oxygen supplement after putting in a suitable place to breed
Machine；
4th, after megalops larva shell to I phase son Eriocheir sinensis, start to throw something and feed and add the minced fish of ecdyson；
Until III phase son Eriocheir sinensis metamorphosis terminates after 5th, I phase son Eriocheir sinensis, used 1 EM bacterium former dew diluent every 2 days.
A kind of method improving Juvenile Crab Eriocheir Sinensis survival rate the most according to claim 1, it is characterised in that described in execute
Being the fertilizer (duck excrement, pig manure are preferred) fully fermented with fertilizer, amount of application is 40-60kg/667m2, application process is
Uniformly splash in full pond.
A kind of method improving Juvenile Crab Eriocheir Sinensis survival rate the most according to claim 1, it is characterised in that described greatly
It is 50 times of former dew diluents that eye germling uses EM bacterium 3-5 day before putting pond in a suitable place to breed, and amount of application is 1.5-2.0kg/667m2, use
Method is uniformly to splash in full pond.
A kind of method improving Juvenile Crab Eriocheir Sinensis survival rate the most according to claim 1, it is characterised in that described greatly
Before eye germling puts pond in a suitable place to breed, 8-10h continues oxygen supplement, it is ensured that water dissolved oxygen amount is more than 5mg/L.
A kind of method improving Juvenile Crab Eriocheir Sinensis survival rate the most according to claim 1, it is characterised in that described throwing
Feed add ecdyson minced fish be that the frost wild fishes after cooking blends mixing with ecdyson through pulper and makes, throwing every day
Amount of feeding is for 1.2-1.5kg/667m2, every day, equivalent was thrown something and fed 3 times, respectively during 10:00,15:00 time, 19:00 time, the side of throwing something and feeding
Method is uniformly to splash in full pond.
A kind of method improving Juvenile Crab Eriocheir Sinensis survival rate the most according to claim 5, it is characterised in that described in add
The ecdyson added is Cyanotis arachnoides P.E, and the ratio being added in minced fish is 0.1%.
A kind of method improving Juvenile Crab Eriocheir Sinensis survival rate the most according to claim 1, it is characterised in that described I
Until it is 100 times of former dew diluents that III phase son Eriocheir sinensis metamorphosis terminated to use 1 EM bacterium every 2 days after phase son Eriocheir sinensis, application dosage is
1.0-1.5kg/667m2, application process is uniformly to splash in full pond.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201610325992.4A CN105994030A (en) | 2016-05-12 | 2016-05-12 | Method for improving eriocheir sinensis juvenile survival rate |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610325992.4A CN105994030A (en) | 2016-05-12 | 2016-05-12 | Method for improving eriocheir sinensis juvenile survival rate |
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| CN105994030A true CN105994030A (en) | 2016-10-12 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201610325992.4A Pending CN105994030A (en) | 2016-05-12 | 2016-05-12 | Method for improving eriocheir sinensis juvenile survival rate |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109601449A (en) * | 2019-01-29 | 2019-04-12 | 钦州学院 | The method for improving Eriocheir hepuensis breeding survival rate and grazing rate by control ammonia nitrogen |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101735299A (en) * | 2010-01-05 | 2010-06-16 | 云南植物药业有限公司 | Method for extracting ecdysone from common cyanotis root and ecdysone thereof |
| CN104273062A (en) * | 2014-09-28 | 2015-01-14 | 湖北省水产技术推广中心 | Method for breeding seeds of river crabs |
| CN104430091A (en) * | 2014-12-01 | 2015-03-25 | 苏州市相城区盛胡特种养殖专业合作社 | Ecological breeding method of Eriocheir sinensis |
-
2016
- 2016-05-12 CN CN201610325992.4A patent/CN105994030A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101735299A (en) * | 2010-01-05 | 2010-06-16 | 云南植物药业有限公司 | Method for extracting ecdysone from common cyanotis root and ecdysone thereof |
| CN104273062A (en) * | 2014-09-28 | 2015-01-14 | 湖北省水产技术推广中心 | Method for breeding seeds of river crabs |
| CN104430091A (en) * | 2014-12-01 | 2015-03-25 | 苏州市相城区盛胡特种养殖专业合作社 | Ecological breeding method of Eriocheir sinensis |
Non-Patent Citations (2)
| Title |
|---|
| 唐八一等: "提高大规格幼蟹培育成活率的关键技术", 《渔业致富指南》 * |
| 姬广闻等: "《新编鱼病综合防治手册》", 30 April 2002, 中原农民出版社 * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109601449A (en) * | 2019-01-29 | 2019-04-12 | 钦州学院 | The method for improving Eriocheir hepuensis breeding survival rate and grazing rate by control ammonia nitrogen |
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Application publication date: 20161012 |
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