CN111771782B - Artificial seedling culture method for yellow mud snails - Google Patents
Artificial seedling culture method for yellow mud snails Download PDFInfo
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- CN111771782B CN111771782B CN202010635746.5A CN202010635746A CN111771782B CN 111771782 B CN111771782 B CN 111771782B CN 202010635746 A CN202010635746 A CN 202010635746A CN 111771782 B CN111771782 B CN 111771782B
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- 241000585116 Galba truncatula Species 0.000 title claims abstract description 39
- 238000012136 culture method Methods 0.000 title description 3
- 241000237858 Gastropoda Species 0.000 claims abstract description 28
- 238000009395 breeding Methods 0.000 claims abstract description 24
- 230000012447 hatching Effects 0.000 claims abstract description 8
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 30
- 235000013601 eggs Nutrition 0.000 claims description 22
- 230000001488 breeding effect Effects 0.000 claims description 18
- 239000004568 cement Substances 0.000 claims description 18
- 241000206751 Chrysophyceae Species 0.000 claims description 9
- 239000011521 glass Substances 0.000 claims description 8
- 238000000034 method Methods 0.000 claims description 8
- 230000003203 everyday effect Effects 0.000 claims description 7
- 241000700141 Rotifera Species 0.000 claims description 6
- 241000193830 Bacillus <bacterium> Species 0.000 claims description 5
- 239000013535 sea water Substances 0.000 claims description 5
- 238000001914 filtration Methods 0.000 claims description 4
- 240000002900 Arthrospira platensis Species 0.000 claims description 3
- 235000016425 Arthrospira platensis Nutrition 0.000 claims description 3
- 239000000843 powder Substances 0.000 claims description 3
- 239000004576 sand Substances 0.000 claims description 3
- 229940082787 spirulina Drugs 0.000 claims description 3
- 241001414834 Ephemeroptera Species 0.000 claims description 2
- 239000000853 adhesive Substances 0.000 claims description 2
- 230000001070 adhesive effect Effects 0.000 claims description 2
- 210000001136 chorion Anatomy 0.000 claims description 2
- 239000002985 plastic film Substances 0.000 claims description 2
- 229920006255 plastic film Polymers 0.000 claims description 2
- 239000005060 rubber Substances 0.000 claims description 2
- 238000004659 sterilization and disinfection Methods 0.000 claims 1
- 230000004083 survival effect Effects 0.000 abstract description 3
- 238000004519 manufacturing process Methods 0.000 abstract description 2
- 230000000638 stimulation Effects 0.000 abstract description 2
- 238000011534 incubation Methods 0.000 description 4
- 241000593559 Bullacta exarata Species 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 235000016709 nutrition Nutrition 0.000 description 3
- 230000035764 nutrition Effects 0.000 description 3
- 230000000624 ovulatory effect Effects 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 238000005273 aeration Methods 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 2
- 230000006866 deterioration Effects 0.000 description 2
- 230000002542 deteriorative effect Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000011152 fibreglass Substances 0.000 description 2
- 241000206761 Bacillariophyta Species 0.000 description 1
- 241000894006 Bacteria Species 0.000 description 1
- 241000195493 Cryptophyta Species 0.000 description 1
- 244000241257 Cucumis melo Species 0.000 description 1
- 235000015510 Cucumis melo subsp melo Nutrition 0.000 description 1
- 102000002322 Egg Proteins Human genes 0.000 description 1
- 108010000912 Egg Proteins Proteins 0.000 description 1
- 229920002430 Fibre-reinforced plastic Polymers 0.000 description 1
- 241000605008 Spirillum Species 0.000 description 1
- FJJCIZWZNKZHII-UHFFFAOYSA-N [4,6-bis(cyanoamino)-1,3,5-triazin-2-yl]cyanamide Chemical compound N#CNC1=NC(NC#N)=NC(NC#N)=N1 FJJCIZWZNKZHII-UHFFFAOYSA-N 0.000 description 1
- 230000002776 aggregation Effects 0.000 description 1
- 238000004220 aggregation Methods 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 235000013305 food Nutrition 0.000 description 1
- 239000003365 glass fiber Substances 0.000 description 1
- 210000004379 membrane Anatomy 0.000 description 1
- 239000012528 membrane Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 235000015097 nutrients Nutrition 0.000 description 1
- 230000017448 oviposition Effects 0.000 description 1
- 230000016087 ovulation Effects 0.000 description 1
- 210000004681 ovum Anatomy 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 235000021110 pickles Nutrition 0.000 description 1
- 239000013049 sediment Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
Classifications
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- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01K—ANIMAL HUSBANDRY; AVICULTURE; APICULTURE; PISCICULTURE; FISHING; REARING OR BREEDING ANIMALS, NOT OTHERWISE PROVIDED FOR; NEW BREEDS OF ANIMALS
- A01K61/00—Culture of aquatic animals
- A01K61/50—Culture of aquatic animals of shellfish
- A01K61/51—Culture of aquatic animals of shellfish of gastropods, e.g. abalones or turban snails
-
- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01K—ANIMAL HUSBANDRY; AVICULTURE; APICULTURE; PISCICULTURE; FISHING; REARING OR BREEDING ANIMALS, NOT OTHERWISE PROVIDED FOR; NEW BREEDS OF ANIMALS
- A01K61/00—Culture of aquatic animals
- A01K61/10—Culture of aquatic animals of fish
- A01K61/17—Hatching, e.g. incubators
-
- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01K—ANIMAL HUSBANDRY; AVICULTURE; APICULTURE; PISCICULTURE; FISHING; REARING OR BREEDING ANIMALS, NOT OTHERWISE PROVIDED FOR; NEW BREEDS OF ANIMALS
- A01K63/00—Receptacles for live fish, e.g. aquaria; Terraria
- A01K63/04—Arrangements for treating water specially adapted to receptacles for live fish
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F3/00—Biological treatment of water, waste water, or sewage
- C02F3/34—Biological treatment of water, waste water, or sewage characterised by the microorganisms used
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2101/00—Nature of the contaminant
- C02F2101/30—Organic compounds
-
- 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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- Life Sciences & Earth Sciences (AREA)
- Environmental Sciences (AREA)
- Biodiversity & Conservation Biology (AREA)
- Marine Sciences & Fisheries (AREA)
- Animal Husbandry (AREA)
- Microbiology (AREA)
- Zoology (AREA)
- Hydrology & Water Resources (AREA)
- Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Water Supply & Treatment (AREA)
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Farming Of Fish And Shellfish (AREA)
Abstract
The invention relates to an artificial breeding method of yellow mud snails, which mainly comprises the steps of yellow mud snail egg collection, hatching, young snail cultivation and the like. The invention sets different feeds at different growth stages of the yellow mud snail according to the characteristics of the yellow mud snail, is matched with corresponding growth places, has small stimulation to the yellow mud snail, high survival rate, complete growth and simple and convenient operation, and is suitable for practical production.
Description
Technical Field
The invention belongs to the field of snail seedling culture, and particularly relates to an artificial seedling culture method for yellow mud snails.
Background
The yellow mud snail is one of the important economic snails in coastal areas of Jiangzhe and Zhejiang, and is popular with people because of high protein content, rich nutrient substances and delicious taste. Drunk mud snail and pickled mud snail are particularly famous appetizing pickles in Jiangzhe and Zhejiang provinces. Secondly, the yellow mud snail grows in the intertidal zone of the coastal beach, mainly takes benthic algae, bacteria and organic debris as food, and has important balance function on the stability of the ecological system of the beach. Therefore, the yellow mud snail has important economic value and ecological value for human life. In recent years, with the exhaustion of yellow mud snail resources, the capture amount of yellow mud snails on coastal mudflat is reduced year by year due to the transitional fishing of human activities, so that the research on the artificial yellow mud snail breeding technology is imperative to compensate and protect yellow mud snail species.
The patent CN201710086179 discloses an artificial breeding method for melon snails, which comprises the techniques of parent snail selection, parent snail breeding, spawning parent snail breeding, young snail breeding and the like. CN201810246105 discloses an artificial breeding method for Callosoma gigas, which comprises a technology for breeding a large number of Callosoma gigas seedlings by preparing an attaching base with benthic diatoms growing, collecting and incubating fertilized eggs and managing breeding.
However, no artificial breeding technology for yellow mud snails is disclosed in China at present.
Disclosure of Invention
The invention aims to solve the technical problem of providing an artificial breeding method of yellow mud snails, starts from the aspects of yellow mud snail egg collection, hatching, young snail breeding and the like, and fills the blank in the prior art.
The invention provides an artificial breeding method of yellow mud snails, which comprises the following steps:
(1) Transferring the yellow mud snails which are about to enter the breeding period into a cement pond, keeping constant flow water in the cement pond, fully aerating, feeding ice rotifers every day to reach 1-2/mL, and collecting follicles discharged by the yellow mud snails;
(2) Transferring the collected yellow mud snail eggs to glass fiber reinforced plastic, flowing water, fully aerating, incubating for 6-7 days, and waiting for the eggs of the dough-tray larva to break;
(3) Filtering the chorion debris when the larvae in the follicles emerge fully broken eggs, mayflies in glass fibre reinforced plastic, while adding bacillus in water;
(4) Continuously hatching the larva in glass fiber reinforced plastic, feeding golden algae, and hatching until the larva is converted into a three-layer period;
(5) Transferring young snails in the period of three layers of snails to another cement pond by siphoning, and feeding diatom and spirulina powder every day;
(6) When the young snail reaches 3-5mm, transferring the young snail into a mud flat or muddy pond for snail formation.
5cm of spun yarn is paved on the cement pond in the step (1), and the water level is 40cm.
And (4) filtering in the step (3) by adopting a filter screen with 20 meshes.
And (5-8 golden algae are fed to each ml of water body in the step (4).
5cm of spun yarn is paved on the cement pond in the step (5), and the water level is 15-20cm.
Aiming at the special growth characteristics of the yellow mud snails, the invention adopts measures of respectively providing a proper amount of frozen rotifer and golden algae baits for a parent in an ovulatory period and a larva in a growing period, and adding bacillus and the like after aerating and breaking eggs of the larva in an incubation process, so that the yellow mud snails fully obtain nutrition and proper settlement conditions in the breeding process, the influence of the deterioration of the breeding water environment on the breeding process is prevented, and the growth speed and the incubation rate of the yellow mud snails are greatly improved.
Advantageous effects
(1) Aiming at the special growth characteristics of the yellow mud snails, the invention respectively provides different baits with proper quantity for the parent in the ovulatory period and the larva in the growing period, the frozen rotifer can provide sufficient nutrition for the yellow mud nut body in the ovulatory period, and the chrysophyceae is the high-quality initial bait for the young snails in the growing period; the invention ensures the nutrition supply and prevents the culture water environment from deteriorating by providing the frozen rotifer and a proper amount of chrysophyceae;
(2) The invention improves the conventional standing incubation mode in the snail breeding, ensures that the snail eggs do not agglomerate through aeration, fully supplies oxygen to the egg bodies, and improves the incubation rate of the snail eggs; after the eggs of the larvae of the yellow mud snails are broken, the step of adding bacillus into the culture water body is added, so that organic debris can be fully decomposed, and the deterioration of the water body environment is prevented;
(3) The method can be applied to the large-scale artificial breeding of the yellow mud snails, has small stimulation to the yellow mud snails, high survival rate, complete growth and simple and convenient operation, and is suitable for actual production.
Detailed Description
The invention will be further illustrated with reference to the following specific examples. It should be understood that these examples are for illustrative purposes only and are not intended to limit the scope of the present invention. Further, it should be understood that various changes or modifications of the present invention may be made by those skilled in the art after reading the teaching of the present invention, and such equivalents may fall within the scope of the present invention as defined in the appended claims.
Example 1
1. Collecting yellow mud snail eggs
Cleaning 250 individual mature bullacta exarata in 30 days 6 months in a year, drying in the shade for 8 hours, placing in a spawning basin for 25-30 bullacta exarata, inflating for spawning, feeding frozen rotifers with concentration equivalent to 1-2/mL every day, and observing the ovulation status of the bullacta exarata uninterruptedly. 7 months and 7 days, discharging sperm eggs from part of parent snails, observing part of eggs by using a microscope after about 1 hour of spawning, fertilizing most of eggs, taking out mud snails from a spawning basin, transferring the eggs to a blue glass jar with the width of 1.9m, the length of 2.5m and the depth of 0.8m, adding filtered seawater 40cm into the jar, and keeping the egg laying density of about 0.2 grains/mL, wherein the constant running water in a cement pond is kept during the period, the aeration is carried out fully, the water flow in the jar rolls so that the eggs are continuously rolled in the water, and the follicle sinking and aggregation are avoided.
2. And 7, after the eggs are incubated in a glass jar for 7 days in 7 months and 14 days, the developing larva of the follicle in the face plate is observed under a microscope, the constant flow water is closed to avoid the hatched larva from flowing out along with the water flow, and the observation is waited until the ovum of the face plate is broken.
3. And after 7 months and 18 days, all the larvae in the follicles are broken eggs and discharged, the plankton in the blue glass jar is fished out of the jar by using a 20-mesh filter screen, simultaneously bacillus is added into the water to fully decompose the organic matters of the egg membranes remained in the water, so that the water quality is prevented from deteriorating, 1/5 of seawater is discharged by using a valve switch on the inner side of the bottom of the blue glass jar, newly filtered seawater is added to 40 centimeters, and the water is changed once a day after 7 months and 19 days, wherein the water change amount is 1/5 of the total water amount.
4. Continuously hatching in a blue glass jar, and feeding golden algae to ensure that each larva has 5-8 golden algae per day. Most of the larvae develop to the period of three spires in 7/21 days (can swim in water and crawl, and double eyepoints and tentacles appear).
5. And 7, in 22 days after 7 months, transferring the larvae in the period of three spirillum layers to a cement pond with 5cm of sterilized fine sand paved at the bottom and 15-20cm of filtered seawater by siphonage, and keeping the density of the larvae at 15-20/mL. The cement pond is an open cement pond (seedling pond) with the width of 2.3m, the length of 3.0m and the depth of 1.2m, an adhesive base is put into the pond and is a plastic film with the width of 1m and the length of 1m, a rubber band is used for wrapping stones in the middle of the pond, and the pond is evenly placed at the bottom of the seedling pond at intervals of 25-30cm. The top of the seedling raising pond is provided with a sun-proof net, and the sun-proof rate is 90 percent. Feeding diatom and spirulina powder every day, wherein the concentration of the diatom is 5-7 ten thousand per mL, water is changed once every day by a valve switch on the inner side of the bottom of the nursery pond after 23 months from 7, and the young snails can crawl in the sediment when the water changing amount is 1/3,7 months 25 of the total water amount.
6. And transferring the young snails in the breeding pond to a mud flat or muddy pond for snail formation when the size of the young snails in the breeding pond reaches 3-5mm in 9 months and 30 days.
The artificial breeding of the yellow mud snails is carried out by the method, and more than 20 million mud snail seedlings are bred in total. The hatching rate reaches 100 percent, and the survival rate is more than 95 percent.
Claims (3)
1. An artificial breeding method of yellow mud snails comprises the following steps:
(1) Transferring the yellow mud snails which are about to enter the breeding period into a cement pond, keeping normal water in the cement pond, fully aerating, feeding frozen rotifers every day to 1-2/mL, and collecting follicles discharged from the yellow mud snails;
(2) Transferring the collected yellow mud snail eggs to a glass jar, flowing water, fully aerating, incubating for 6-7 days, and waiting for the eggs of the dough disk larva to break;
(3) Filtering the chorion debris when the larvae in the follicles emerge fully broken eggs, mayflies in a glass jar while adding bacillus in water;
(4) Continuously hatching the larva in a glass jar, feeding golden algae, and hatching until the larva is converted into a three-layer snail stage; wherein, 5-8 golden algae are fed in each ml of water body;
(5) Transferring larvae in the period of three snail layers to a cement pond paved with 5cm of disinfection fine sand at the bottom and filled with filtered seawater for 15-20cm by siphonage, and keeping the density of the larvae at 15-20/mL; the cement pond is an open cement pond with the width of 2.3m, the length of 3.0m and the depth of 1.2m, an adhesive base with a plastic film of 1m and the length of 1m is put in the cement pond, stones are wrapped in the middle of the cement pond by a rubber band, and the cement pond is evenly placed at the bottom of the seedling raising pond at intervals of 25-30cm; the top of the seedling raising pond is provided with a sun-proof net, and the light-proof rate is 90%; feeding diatom and spirulina powder every day, wherein the concentration of the diatom is 5-7 ten thousand per mL;
(6) When the young snail individual reaches 3-5mm, the young snail individual is transferred to a mud flat or muddy pool to be cultured into the young snail.
2. The method of claim 1, wherein: and (2) paving 5cm of fine sand on the cement pond in the step (1) and enabling the water level to be 40cm.
3. The method of claim 1, wherein: and (4) filtering in the step (3) by adopting a filter screen with 20 meshes.
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CN202010635746.5A CN111771782B (en) | 2020-07-03 | 2020-07-03 | Artificial seedling culture method for yellow mud snails |
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CN202010635746.5A CN111771782B (en) | 2020-07-03 | 2020-07-03 | Artificial seedling culture method for yellow mud snails |
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CN111771782B true CN111771782B (en) | 2022-11-01 |
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Family Cites Families (5)
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AUPR865101A0 (en) * | 2001-11-02 | 2001-11-29 | State Of Queensland Through Its Department Of Primary In Industries, The | Method and apparatus for aquatic animal husbandry |
CN101999328B (en) * | 2010-09-14 | 2011-12-14 | 山东大学威海分校 | Rapana venosa ecological breeding method |
CN102742524B (en) * | 2012-04-23 | 2013-10-09 | 浙江海洋学院 | Fry breeding method for thais luteostoma |
CN103109770B (en) * | 2013-03-11 | 2014-03-26 | 丹东市水产技术推广总站 | Rapana venosa offspring seed cultivation method |
CN108207716B (en) * | 2018-03-23 | 2021-01-29 | 中国科学院南海海洋研究所 | Artificial breeding method of Zaocys giganteus |
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