CN103416337A - Wild-imitation breeding method for river eel - Google Patents

Wild-imitation breeding method for river eel Download PDF

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Publication number
CN103416337A
CN103416337A CN2013103723224A CN201310372322A CN103416337A CN 103416337 A CN103416337 A CN 103416337A CN 2013103723224 A CN2013103723224 A CN 2013103723224A CN 201310372322 A CN201310372322 A CN 201310372322A CN 103416337 A CN103416337 A CN 103416337A
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eel
water
feed
days
pond
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CN103416337B (en
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崔建荣
莫旺成
陈丹
王冠球
孙士林
张建昌
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CIXI VEGETABLES DEVELOPMENT Co Ltd
NINGBO CHUANGHUI VEGETABLES ENGINEERING TECHNOLOGY CENTER
NINGBO DAQIAO ECOLOGICAL AGRICULTURE CO Ltd
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CIXI VEGETABLES DEVELOPMENT Co Ltd
NINGBO CHUANGHUI VEGETABLES ENGINEERING TECHNOLOGY CENTER
NINGBO DAQIAO ECOLOGICAL AGRICULTURE CO Ltd
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    • 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 invention discloses a wild-imitation breeding method for river eel. The method comprises the following steps: A, preparing for pond conditions and other work; B, stocking seeds, wherein the seeds include river eel, penaeus monodon, chub and bighead; C, feedstuff feeding; D, daily management: (1) aerating by adopting an aerator; (2) disinfecting a water body; (3) applying a microbial preparation; (4) changing water; (5) controlling diseases: preventing, controlling and treating diseases by using Chinese Herbal medicines; E, modifying an artificial wild-imitation environment. According to the method, river eel, penaeus monodon, chub and bighead are bred in a breeding pond in a mixed way, so that the stability of a breeding system can be improved; meanwhile, the water quality environment of the pond can be improved, and the breeding benefit of unit area is increased; a marine drug prepared by compounding natural Chinese herbal medicines has the advantages of natural property, multi-functionality, small toxic and side effects and no drug resistance, the quality of marine products is improved remarkably, and the immunologic functions of aquatic animals are improved.

Description

A kind of river eel is imitated wild cultural method
Technical field
The present invention relates to a kind of river eel cultural method.
Background technology
River eel is because of its meat flavour deliciousness, the fatty acid that contains rich in protein, vitamin, mineral matter and needed by human (DHA, EPA), its fat is similar to human body with the structure of protein, so easily be absorbed by the body, enjoy the good reputation of " ginseng in water ", become the high-grade high quality food that is applicable to modern consumption, deeply be subject to Japan and Southeast Asia consumer's welcome.Because the river eel seedling so far can not artificial propagation, the minimizing of amount of fishing, allow eel seedling price equal to gold, becomes genuine " soft gold ", and river eel price one tunnel is surging.
The eighties in 20th century, the river eel cultivation starts to walk and is developed on a large scale in China mainland, and aquaculture model is also in constantly improving and developing.The cultivation of early stage river eel is to adopt single cement pit intensive culture pattern, and the later stage has developed Tu Chi and supports eel, and Cage Culture of Eel, Anguilla japonica in Reservoir, seawater cage are supported eel, and brackish water Tu Chi is mono-, raise together with eel.Current domestic one-tenth eel aquaculture model mainly contains cement pit warm flow water industrial aquaculture and pool cultivated 2 kinds of soil.Due to the expansion of river eel cultivation scale and the randomness of production, breeding environment is subjected to heavy damage, and water quality worsens increasingly.In breeding production, breeding density is high, throw something and feed excessive, heavy damage the ecological balance of breeding water body, water body self-purification ability is destroyed, the raiser can only maintain water quality by changing in a large number water.Under such breeding environment, river eel in stress adaptive state, can not well ingest and grow always, and disease increases, and the drug abuse phenomenon is general.
Summary of the invention
In order to overcome the above-mentioned deficiency of existing river eel cultural method, the invention provides a kind ofly by building and safeguard that the breeding water body ecosystem realizes energy-conservation, healthy culture efficiency, effectively suppress germ and the parasitic imitative wild cultural method of river eel of breaking out simultaneously.
The technical scheme that the present invention solves its technical problem is: a kind of river eel is imitated wild cultural method, comprises following measures:
A. pond condition and preparation: 5 mu ~ 8 mu of pond areas, slope is 1.0: 1.5 ~ 2.0 than the ratio of horizontal width (the domatic vertical height with), the depth of water remains on 1.5 ~ 2.0 m;
Throw seedling and Chi Shui drained in first 1 month, carry out artificial or machinery and desilt, make pond at the bottom of mud be less than 10cm, desilting can not only increase the pond degree of depth, also helps and improves water quality, removes pathogene, is the basis that eel successfully cultivates;
Put the seedling sterilization of being cleaned up the pond in first 12 days, depth of water remains on 15 cm, uses quicklime according to 1500 kg/hm 2Evenly splashing in full pond, or carries out full pool spilling head with bleaching powder by the concentration of 20 ~ 25 mg/L, thoroughly kills wild fishes and harmful organisms, and before eel kind lower storage reservoir, 5~7 days water filling 0.6~0.7m are dark, and water inlet filters with 60 mesh sieve;
Finally fertilising training water, sprinkle organic fertilizer 200kg/ mu, puts the eel kind after water is light green or yellowish-brown again; Put and Chi Shuijia was deep to 1.5m in the 15th day after the eel kind;
B. seed is put in a suitable place to breed: seed comprises river eel, Penaeus Vannmei, silver carp and bighead, and the increase breed variety can enrich the ecosystem in pond and create wild living environment;
The river eel seed release time at the beginning of 3 months, pond water temperature is while reaching 15 ℃, physically fit, the anosis nothing of input eel seedling is hindered, body surface smooth has mucus, color and luster normal, it is active to move about, the eel seedling specification of throwing in is the 20g/ tail, breeding density is 2500 ~ 3000 tails/mu, before throwing in, with 20mg/L liquor potassic permanganate or 2% ~ 3% salt solution, embathes eel kind 5 ~ 10 min;
The Penaeus Vannmei time of putting in a suitable place to breed is mid-May, and when water temperature surpasses 20 ℃, breeding density is 2 ~ 2.5 ten thousand tails/mu, and the shrimp seedling is first supported temporarily while to specification, reaching 2cm and raised together with in the net cage in one jiao, pond;
Silver carp and bighead were put in a suitable place to breed in April, and for regulating water quality, stocking size is the 100g/ tail, and breeding density is respectively silver carp 20 tails/mu, bighead 5 tails/mu, before throwing in, with 20mg/L liquor potassic permanganate or 2% ~ 3% salt solution, embathed fingerling 5 ~ 10 min.
C. feedstuff feeding: water temperature is during lower than 22 ℃, the eel special compound feed of throwing something and feeding every day 1 time, time 14:00 ~ 15:00; Water temperature is more than 22 ℃, and every natural gift eel special compound feed of throwing something and feeding for 2 times, be respectively 5:00 ~ 6:00 and 17:00 ~ 18:00, respectively throws something and feeds 1 time; Feed adopts the eel special compound feed of same brand, when specification is greater than 20 tails/kg, uses adult eel feed; While throwing something and feeding, required feed is added to the water stirring and be modulated into the dough shape, the feed fixed point is thrown on the food platform, food platform position is fixed, and the amount of the feed of input to be eaten up and to be as the criterion by the river eel seedling in 20 ~ 30min;
Penaeus vannamei boone feed is thrown something and fed 2 times every day, after river eel feedstuff feeding 30min, throw something and feed, the prawn feed one side is according to food situation and the weather adjustment of prawn, if the river eel feed is not eaten and totally can be reduced prawn feed and throw something and feed on the other hand, remove residual bait, keep water quality, silver carp and bighead do not carry out artificial feed and throw something and feed;
D. daily management:
(1). adopt aerator oxygenation, aerator not only has oxygenation effect, can also accelerate the convection current of water body, promotes organic oxidation Decomposition and planktonic breeding growth, reduces the generation of harmful substance:
Select paddle aerator, adopt Internet of things system to carry out Real-Time Monitoring to the cultivating pool dissolved oxygen, the threshold value that dissolved oxygen is set is 5 mg/L, and when dissolved oxygen, during lower than this threshold value, aerator is opened and carried out oxygenation; In the afternoon start shooting during this external fine day, upper strata supersaturation dissolved oxygen can be transported to lower floor, improve the bottom water environment;
(2). water body disinfection:
Regularly cultivating pool is carried out disinfection, disinfecting drug is chlorine dioxide or bleaching powder, within every 15 days, use 1 time, both are used alternatingly (by sterilization, can effectively improve breeding environment, promote decomposition organic in water body, reduce the function of the harmful substances such as water body ammonia nitrogen, nitrate nitrogen, hydrogen sulphide and suppress pond bottom harmful bacteria breeding growth, prevent disease occurs);
(3). the application of microorganism formulation:
Splash in every 15 days in the breeding process EM bacterium dilution of 100 times, every mu of water surface consumption 1 ~ 2kg, when throwing in the EM bacterium and disinfectant interval more than 5 days;
(4). change water:
Summer high temperature season, within every 15 days, change water one time, change water volume and account for 20% ~ 30% of total water volume; Other times change water one time in every 25 days, change water volume and account for 10% of total water volume;
(5). disease is controlled:
Use Chinese herbal medicine to carry out prevention from suffering from the diseases and treatment, pharmaceutical chemistry is:
1.. prevention and treatment bacterial gill, tail, red fin fish disease prescription:
A. every 100kg eel, with the 350g coptis, the 210g tuber of stemona, 200g cordate houttuynia, the chopping of 210g folium isatidis or decoct juice and mix bait and throw something and feed, be used in conjunction 2 ~ 4 days; Simultaneously:
B. rheum officinale dry product 2.5kg, the ammoniacal liquor 25kg that is 0.3% with the quality percentage composition soaked after 2 ~ 3 hours, full pool spilling head, every mu of consumption 3 ~ 4kg;
2.. prevention and treatment liver-kidney diseases prescription: every 100kg eel, shred or decoct juice with 200g prepared rhizome of rehmannia, 150g Schisandra sphenanthera Rehd.et WilS, 200g Radix Isatidis, the 50g Radix Astragali, 50g radix bupleuri, 50g Radix Glycyrrhizae and mix bait and throw something and feed, every day 1 time, be used in conjunction 4 days;
3.. prevention and treatment bacillary enteritis prescription:
A. every 100kg eel, add water boil 30 minutes with the dry Herba Euphorbiae Humifusae of 200g or the bright polygonum flaccidum chopping of the bright Herba Euphorbiae Humifusae of 4kg, the dry polygonum flaccidum of 250g or 4.5kg, admixes feedstuff feeding, every day 1 time, is used in conjunction 2 ~ 4 days; Simultaneously:
B. every 100kg eel, the bright calamus of 60kg, 5kg kitchen garden, the chopping of 2kg garlic are placed in gradation in wooden barrel and smash juice, and with salt, 1000g admixes feedstuff feeding, is used in conjunction 3 days;
4.. prevention and treatment fungoid saprolegniasis, branchiomycosis prescription):
A. 100 order powder are shredded or worn into to every mu of 0.01g Moschus for the water surface, the 500g root of large-flowered skullcap, 500g Asiatic plantain, with after the boiling water punching, being watered full pool spilling head; Simultaneously:
B. every 100kg eel, be milled to 100 orders with 2000g salt, 500g rheum officinale, and full pool spilling head after water brews 30 minutes, be used in conjunction 2 days;
5.. prevention and treatment doctylogyrosis, gyrodactyliasis, fish glue occupy the nematodosis prescription:
A. every 100kg eel, use 1000g hot pepper, 1000g camphortree leaf to decoct full pool spilling head after 30 ~ 60 minutes, is used in conjunction 2 ~ 4 days; Simultaneously:
B. every 100kg eel, soak full pool spilling head after 5 ~ 10 minutes after rushing with boiling water with 1000g China tree grinds, the dry polygonum flaccidum grinds of 1000g, is used in conjunction 2 ~ 4 days;
E. manually imitative wild environment transformation:
According to eel is in the family way, secretly keep in dark place, the imitative wild environment of habit design of living in caves.In pond, one side is built bait table, and bait table is of a size of long 2m, wide 1m, and bait table is apart from pool dike 2m, and every 2 mu arrange 1 bait table, and the grid frame is set up in the bait table top, with the black sunshade net, hides the grid frame, and shading is beneficial to river eel and ingests;
Build the artificial pipeline of living in caves at the bait table periphery, adopt pvc pipe to be made, 3 ~ 5 layers of the staggered stacks of pipe, on pipe, need to be punched, the size in hole can free in and out river eel to get final product, and the pipe laying area of living in caves that this is artificial is 10 ~ 15 ㎡/mu, bottom pipeline apart from pond at the bottom of 30cm, tube length is 50 ~ 80cm, and tube outer diameter is 90mm or 110mm.The artificial environment of living in caves is created in laying by pipeline, can make river eel have a rest in pipeline, avoid eel to pierce at the bottom of pond for a long time in poor environment, make it live in water quality better, the water layer that dissolved oxygen is higher, reduce itself and harmful microorganism and parasitic the contact, improved the cultivation survival rate, accelerated the eel growth;
Build artificial floating bed above the artificial pipeline of living in caves, plantation water purification plant, as swamp cabbage, India canna, grass-leaved sweetflag etc., can be created dark living environment for river eel by artificial floating bed, can improve the water quality in pond, kills two birds with one stone simultaneously.
Preferably, in measure C, add 1% ~ 2% fish oil and the vitamin account for the feed gross mass in feed, the ratio of fish oil and vitamin is 1:1; In measure C, within every 10 days, throw something and feed small fish and pluck are in order to improve river eel physique and quality.
Beneficial effect of the present invention is: by raising together with river eel, Penaeus Vannmei, silver carp, bighead in cultivating pool, can improve the stability of cultivating system, can improve the water quality environment in pond, improve the culture benefit of unit are simultaneously; Internet of things system application in the present invention, can guarantee that the pond dissolved oxygen maintains higher level all the time, greatly reduces the power cost in pond, reduces the cultivation risk; The use of EM bacterium, can effectively suppress pond harmful microbe breeding, guarantees pond bacterium algae balance, creates good breeding environment; The composite aquatic medicine formed of natural Chinese medicinal herb has its natural sex, multifunctionality, and toxic and side effect is little, and, without drug-fast advantage, significantly improves the quality of aquatic products and improve the immunologic function of aquatic animal; The laying of the artificial pipeline of living in caves can be built good habitat, is conducive to improve the availability of bait and the growth rate of river eel, improves the river eel survival rate.
Embodiment
Below in conjunction with embodiment, the present invention is described in further detail.
A kind of river eel is imitated wild cultural method, comprises following measures:
A. pond condition and preparation: 5 mu ~ 8 mu of pond areas all can, slope is 1.0: 1.5 ~ 2.0 than the ratio of horizontal width (the domatic vertical height with), the depth of water remains on 1.5 ~ 2.0 m;
Throw seedling and Chi Shui drained in first 1 month, carry out artificial or machinery and desilt, make pond at the bottom of mud be less than 10cm, desilting can not only increase the pond degree of depth, also helps and improves water quality, removes pathogene, is the basis that eel successfully cultivates;
Put the seedling sterilization of being cleaned up the pond in first 12 days, depth of water remains on 15 cm, uses quicklime according to 1500 kg/hm 2Evenly splashing in full pond, or carries out full pool spilling head with bleaching powder by the concentration of 20 ~ 25 mg/L, thoroughly kills wild fishes and harmful organisms, and before eel kind lower storage reservoir, 5~7 days water filling 0.6~0.7m are dark, and water inlet filters with 60 mesh sieve;
Finally fertilising training water, sprinkle organic fertilizer 200kg/ mu, puts the eel kind after water is light green or yellowish-brown again; Put and Chi Shuijia was deep to 1.5m in the 15th day after the eel kind;
B. seed is put in a suitable place to breed: seed comprises river eel, Penaeus Vannmei, silver carp and bighead, and the increase breed variety can enrich the ecosystem in pond and create wild living environment;
The river eel seed release time at the beginning of 3 months, pond water temperature is while reaching 15 ℃, physically fit, the anosis nothing of input eel seedling is hindered, body surface smooth has mucus, color and luster normal, it is active to move about, the eel seedling specification of throwing in is the 20g/ tail, breeding density is 2500 ~ 3000 tails/mu, before throwing in, with 20mg/L liquor potassic permanganate or 2% ~ 3% salt solution, embathes eel kind 5 ~ 10 min;
The Penaeus Vannmei time of putting in a suitable place to breed is mid-May, and when water temperature surpasses 20 ℃, breeding density is 2 ~ 2.5 ten thousand tails/mu, and the shrimp seedling is first supported temporarily while to specification, reaching 2cm and raised together with in the net cage in one jiao, pond;
Silver carp and bighead were put in a suitable place to breed in April, and for regulating water quality, stocking size is the 100g/ tail, and breeding density is respectively silver carp 20 tails/mu, bighead 5 tails/mu, before throwing in, with 20mg/L liquor potassic permanganate or 2% ~ 3% salt solution, embathed fingerling 5 ~ 10 min.
C. feedstuff feeding: water temperature is during lower than 22 ℃, the eel special compound feed of throwing something and feeding every day 1 time, time 14:00 ~ 15:00; Water temperature is more than 22 ℃, and every natural gift eel special compound feed of throwing something and feeding for 2 times, be respectively 5:00 ~ 6:00 and 17:00 ~ 18:00, respectively throws something and feeds 1 time; Feed adopts the eel special compound feed of same brand, when specification is greater than 20 tails/kg, uses adult eel feed; While throwing something and feeding, required feed is added to the water stirring and be modulated into the dough shape, the feed fixed point is thrown on the food platform, food platform position is fixed, and the amount of the feed of input to be eaten up and to be as the criterion by the river eel seedling in 20 ~ 30min;
Penaeus vannamei boone feed is thrown something and fed 2 times every day, after river eel feedstuff feeding 30min, throw something and feed, the prawn feed one side is according to food situation and the weather adjustment of prawn, if the river eel feed is not eaten and totally can be reduced prawn feed and throw something and feed on the other hand, remove residual bait, keep water quality, silver carp and bighead do not carry out artificial feed and throw something and feed;
D. daily management:
(1). adopt aerator oxygenation, aerator not only has oxygenation effect, can also accelerate the convection current of water body, promotes organic oxidation Decomposition and planktonic breeding growth, reduces the generation of harmful substance:
Select paddle aerator, adopt Internet of things system to carry out Real-Time Monitoring to the cultivating pool dissolved oxygen, the threshold value that dissolved oxygen is set is 5 mg/L, and when dissolved oxygen, during lower than this threshold value, aerator is opened and carried out oxygenation; In the afternoon start shooting during this external fine day, upper strata supersaturation dissolved oxygen can be transported to lower floor, improve the bottom water environment;
(2). water body disinfection:
Regularly cultivating pool is carried out disinfection, disinfecting drug is chlorine dioxide or bleaching powder, within every 15 days, use 1 time, both are used alternatingly (by sterilization, can effectively improve breeding environment, promote decomposition organic in water body, reduce the function of the harmful substances such as water body ammonia nitrogen, nitrate nitrogen, hydrogen sulphide and suppress pond bottom harmful bacteria breeding growth, prevent disease occurs);
(3). the application of microorganism formulation:
Splash in every 15 days in the breeding process EM bacterium dilution of 100 times, every mu of water surface consumption 1 ~ 2kg, when throwing in the EM bacterium and disinfectant interval more than 5 days;
(4). change water:
Summer high temperature season, within every 15 days, change water one time, change water volume and account for 20% ~ 30% of total water volume; Other times change water one time in every 25 days, change water volume and account for 10% of total water volume;
(5). disease is controlled:
Use Chinese herbal medicine to carry out prevention from suffering from the diseases and treatment, pharmaceutical chemistry is:
1.. prevention and treatment bacterial gill, tail, red fin fish disease prescription:
A. every 100kg eel, with the 350g coptis, the 210g tuber of stemona, 200g cordate houttuynia, the chopping of 210g folium isatidis or decoct juice and mix bait and throw something and feed, be used in conjunction 2 ~ 4 days; Simultaneously:
B. rheum officinale dry product 2.5kg, the ammoniacal liquor 25kg that is 0.3% with the quality percentage composition soaked after 2 ~ 3 hours, full pool spilling head, every mu of consumption 3 ~ 4kg;
2.. prevention and treatment liver-kidney diseases prescription: every 100kg eel, shred or decoct juice with 200g prepared rhizome of rehmannia, 150g Schisandra sphenanthera Rehd.et WilS, 200g Radix Isatidis, the 50g Radix Astragali, 50g radix bupleuri, 50g Radix Glycyrrhizae and mix bait and throw something and feed, every day 1 time, be used in conjunction 4 days;
3.. prevention and treatment bacillary enteritis prescription:
A. every 100kg eel, add water boil 30 minutes with the dry Herba Euphorbiae Humifusae of 200g or the bright polygonum flaccidum chopping of the bright Herba Euphorbiae Humifusae of 4kg, the dry polygonum flaccidum of 250g or 4.5kg, admixes feedstuff feeding, every day 1 time, is used in conjunction 2 ~ 4 days; Simultaneously:
B. every 100kg eel, the bright calamus of 60kg, 5kg kitchen garden, the chopping of 2kg garlic are placed in gradation in wooden barrel and smash juice, and with salt, 1000g admixes feedstuff feeding, is used in conjunction 3 days;
4.. prevention and treatment fungoid saprolegniasis, branchiomycosis prescription):
A. 100 order powder are shredded or worn into to every mu of 0.01g Moschus for the water surface, the 500g root of large-flowered skullcap, 500g Asiatic plantain, with after the boiling water punching, being watered full pool spilling head; Simultaneously:
B. every 100kg eel, be milled to 100 orders with 2000g salt, 500g rheum officinale, and full pool spilling head after water brews 30 minutes, be used in conjunction 2 days;
5.. prevention and treatment doctylogyrosis, gyrodactyliasis, fish glue occupy the nematodosis prescription:
A. every 100kg eel, use 1000g hot pepper, 1000g camphortree leaf to decoct full pool spilling head after 30 ~ 60 minutes, is used in conjunction 2 ~ 4 days; Simultaneously:
B. every 100kg eel, soak full pool spilling head after 5 ~ 10 minutes after rushing with boiling water with 1000g China tree grinds, the dry polygonum flaccidum grinds of 1000g, is used in conjunction 2 ~ 4 days;
E. manually imitative wild environment transformation:
According to eel is in the family way, secretly keep in dark place, the imitative wild environment of habit design of living in caves.In pond, one side is built bait table, and bait table is of a size of long 2m, wide 1m, and bait table is apart from pool dike 2m, and every 2 mu arrange 1 bait table, and the grid frame is set up in the bait table top, with the black sunshade net, hides the grid frame, and shading is beneficial to river eel and ingests;
Build the artificial pipeline of living in caves at the bait table periphery, adopt pvc pipe to be made, 3 ~ 5 layers of the staggered stacks of pipe, on pipe, need to be punched, the size in hole can free in and out river eel to get final product, and the pipe laying area of living in caves that this is artificial is 10 ~ 15 ㎡/mu, bottom pipeline apart from pond at the bottom of 30cm, tube length is 50 ~ 80cm, and tube outer diameter is 90mm or 110mm.The artificial environment of living in caves is created in laying by pipeline, can make river eel have a rest in pipeline, avoid eel to pierce at the bottom of pond for a long time in poor environment, make it live in water quality better, the water layer that dissolved oxygen is higher, reduce itself and harmful microorganism and parasitic the contact, improved the cultivation survival rate, accelerated the eel growth;
Build artificial floating bed above the artificial pipeline of living in caves, plantation water purification plant, as swamp cabbage, India canna, grass-leaved sweetflag etc., can be created dark living environment for river eel by artificial floating bed, can improve the water quality in pond, kills two birds with one stone simultaneously.
Be recommended in measure C, be strengthen the eel resistance against diseases, add 1% ~ 2% fish oil and the vitamin that account for the feed gross mass in feed, vitamin can select the kind multivitamin such as multivitamin and minerals tablet of depositing to pulverize, and the ratio of fish oil and vitamin is 1:1; Within every 10 days, throw something and feed small fish and pluck in order to improve river eel physique and quality.
By the cultivation of 1 year, obtained desirable culture efficiency.River eel is fished for to and cleans up the pond since July December, altogether fishes for 16416 of river eel, gross weight 4596kg, average specification 280g, harvesting rate 91.2%.The establishment of environment of manually living in caves has played important function to imitative wild cultivation, and extensive disease does not occur in the eel culture process, the general native pool cultivated height of cultivation survival rate, and the eel quality is superior, and meat approaches wild, and market reaction is fabulous, and supply falls short of demand.Penaeus Vannmei 415kg, silver carp bighead 480kg.21.9 ten thousand yuan of test pond 6 per mu yield values, the per mu yield value reaches 3.65 ten thousand yuan, remarkable in economical benefits.

Claims (2)

1. a river eel is imitated wild cultural method, it is characterized in that comprising following measures:
A. pond condition and preparation: 5 mu ~ 8 mu of pond areas, the slope ratio is 1.0: 1.5 ~ 2.0, the depth of water remains on 1.5 ~ 2.0 m;
Throw seedling and Chi Shui drained in first 1 month, carry out artificial or machinery and desilt, make pond at the bottom of mud be less than 10cm;
Put the seedling sterilization of being cleaned up the pond in first 12 days, depth of water remains on 15 cm, uses quicklime according to 1500 kg/hm 2Evenly splashing in full pond, or carries out full pool spilling head with bleaching powder by the concentration of 20 ~ 25 mg/L, and before eel kind lower storage reservoir, 5~7 days water filling 0.6~0.7m are dark, and water inlet filters with 60 mesh sieve;
Finally fertilising training water, sprinkle organic fertilizer 200kg/ mu, puts the eel kind after water is light green or yellowish-brown again; Put and Chi Shuijia was deep to 1.5m in the 15th day after the eel kind;
B. seed is put in a suitable place to breed: seed comprises river eel, Penaeus Vannmei, silver carp and bighead;
The river eel seed release time at the beginning of 3 months, pond water temperature is while reaching 15 ℃, the eel seedling specification of input is the 20g/ tail, breeding density is 2500 ~ 3000 tails/mu, before throwing in, with 20mg/L liquor potassic permanganate or 2% ~ 3% salt solution, embathes eel kind 5 ~ 10 min;
The Penaeus Vannmei time of putting in a suitable place to breed is mid-May, and when water temperature surpasses 20 ℃, breeding density is 2 ~ 2.5 ten thousand tails/mu, and the shrimp seedling is first supported temporarily while to specification, reaching 2cm and raised together with in the net cage in one jiao, pond;
Silver carp and bighead were put in a suitable place to breed in April, and stocking size is the 100g/ tail, and breeding density is respectively silver carp 20 tails/mu, bighead 5 tails/mu, before throwing in, with 20mg/L liquor potassic permanganate or 2% ~ 3% salt solution, embathed fingerling 5 ~ 10 min;
C. feedstuff feeding: water temperature is during lower than 22 ℃, the eel special compound feed of throwing something and feeding every day 1 time, time 14:00 ~ 15:00; Water temperature is more than 22 ℃, and every natural gift eel special compound feed of throwing something and feeding for 2 times, be respectively 5:00 ~ 6:00 and 17:00 ~ 18:00, respectively throws something and feeds 1 time; Feed adopts the eel special compound feed of same brand, when specification is greater than 20 tails/kg, uses adult eel feed; While throwing something and feeding, required feed is added to the water stirring and be modulated into the dough shape, the feed fixed point is thrown on the food platform, food platform position is fixed, and the amount of the feed of input to be eaten up and to be as the criterion by the river eel seedling in 20 ~ 30min;
Penaeus vannamei boone feed is thrown something and fed 2 times every day, after river eel feedstuff feeding 30min, throws something and feeds, and silver carp and bighead do not carry out artificial feed and throw something and feed;
D. daily management:
(1). adopt aerator oxygenation:
Select paddle aerator, adopt Internet of things system to carry out Real-Time Monitoring to the cultivating pool dissolved oxygen, the threshold value that dissolved oxygen is set is 5 mg/L, and when dissolved oxygen, during lower than this threshold value, aerator is opened and carried out oxygenation; In the afternoon start shooting during this external fine day, upper strata supersaturation dissolved oxygen can be transported to lower floor, improve the bottom water environment;
(2). water body disinfection:
Regularly cultivating pool is carried out disinfection, disinfecting drug is chlorine dioxide or bleaching powder, within every 15 days, uses 1 time, and both are used alternatingly;
(3). the application of microorganism formulation:
Splash in every 15 days in the breeding process EM bacterium dilution of 100 times, every mu of water surface consumption 1 ~ 2kg, when throwing in the EM bacterium and disinfectant interval more than 5 days;
(4). change water:
Summer high temperature season, within every 15 days, change water one time, change water volume and account for 20% ~ 30% of total water volume; Other times change water one time in every 25 days, change water volume and account for 10% of total water volume;
(5). disease is controlled:
Use Chinese herbal medicine to carry out prevention from suffering from the diseases and treatment, pharmaceutical chemistry is:
1.. prevention and treatment bacterial gill, tail, red fin fish disease prescription:
A. every 100kg eel, with the 350g coptis, the 210g tuber of stemona, 200g cordate houttuynia, the chopping of 210g folium isatidis or decoct juice and mix bait and throw something and feed, be used in conjunction 2 ~ 4 days; Simultaneously:
B. rheum officinale dry product 2.5kg, the ammoniacal liquor 25kg that is 0.3% with the quality percentage composition soaked after 2 ~ 3 hours, full pool spilling head, every mu of consumption 3 ~ 4kg;
2.. prevention and treatment liver-kidney diseases prescription: every 100kg eel, shred or decoct juice with 200g prepared rhizome of rehmannia, 150g Schisandra sphenanthera Rehd.et WilS, 200g Radix Isatidis, the 50g Radix Astragali, 50g radix bupleuri, 50g Radix Glycyrrhizae and mix bait and throw something and feed, every day 1 time, be used in conjunction 4 days;
3.. prevention and treatment bacillary enteritis prescription:
A. every 100kg eel, add water boil 30 minutes with the dry Herba Euphorbiae Humifusae of 200g or the bright polygonum flaccidum chopping of the bright Herba Euphorbiae Humifusae of 4kg, the dry polygonum flaccidum of 250g or 4.5kg, admixes feedstuff feeding, every day 1 time, is used in conjunction 2 ~ 4 days; Simultaneously:
B. every 100kg eel, the bright calamus of 60kg, 5kg kitchen garden, the chopping of 2kg garlic are placed in gradation in wooden barrel and smash juice, and with salt, 1000g admixes feedstuff feeding, is used in conjunction 3 days;
4.. prevention and treatment fungoid saprolegniasis, branchiomycosis prescription):
A. 100 order powder are shredded or worn into to every mu of 0.01g Moschus for the water surface, the 500g root of large-flowered skullcap, 500g Asiatic plantain, with after the boiling water punching, being watered full pool spilling head; Simultaneously:
B. every 100kg eel, be milled to 100 orders with 2000g salt, 500g rheum officinale, and full pool spilling head after water brews 30 minutes, be used in conjunction 2 days;
5.. prevention and treatment doctylogyrosis, gyrodactyliasis, fish glue occupy the nematodosis prescription:
A. every 100kg eel, use 1000g hot pepper, 1000g camphortree leaf to decoct full pool spilling head after 30 ~ 60 minutes, is used in conjunction 2 ~ 4 days; Simultaneously:
B. every 100kg eel, soak full pool spilling head after 5 ~ 10 minutes after rushing with boiling water with 1000g China tree grinds, the dry polygonum flaccidum grinds of 1000g, is used in conjunction 2 ~ 4 days;
E. manually imitative wild environment transformation:
In pond, one side is built bait table, and bait table is of a size of long 2m, wide 1m, and bait table is apart from pool dike 2m, and every 2 mu arrange 1 bait table, and the grid frame is set up in the bait table top, with the black sunshade net, hides the grid frame;
Build the artificial pipeline of living in caves at the bait table periphery, adopt pvc pipe to be made, 3 ~ 5 layers of the staggered stacks of pipe, on pipe, need to be punched, the size in hole can free in and out river eel to get final product, and the pipe laying area of living in caves that this is artificial is 10 ~ 15 ㎡/mu, bottom pipeline apart from pond at the bottom of 30cm, tube length is 50 ~ 80cm, and tube outer diameter is 90mm or 110mm;
Build artificial floating bed above the artificial pipeline of living in caves, plantation water purification plant.
2. the imitative wild cultural method of river eel as claimed in claim 1 is characterized in that: in measure C, add 1% ~ 2% fish oil and the vitamin that account for the feed gross mass in feed, the ratio of fish oil and vitamin is 1:1;
In measure C, within every 10 days, throw something and feed small fish and pluck are in order to improve river eel physique and quality.
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CN103734047A (en) * 2013-12-20 2014-04-23 德清县吴越水产养殖有限公司 Fish cultivating method for improving high temperature resistance and reducing disasters
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