CN103098725B - Large-area ecological fish culture method in reservoir - Google Patents
Large-area ecological fish culture method in reservoir Download PDFInfo
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- CN103098725B CN103098725B CN201210253342.5A CN201210253342A CN103098725B CN 103098725 B CN103098725 B CN 103098725B CN 201210253342 A CN201210253342 A CN 201210253342A CN 103098725 B CN103098725 B CN 103098725B
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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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- 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
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Abstract
The invention relates to the field of aquaculture, in particular to a large-area ecological fish culture method in a reservoir. According to the method, fingerling input, daily management and fishing are improved, and a large-area ecological culture mode in the reservoir is eventually formed. Biological variety and biological circulation are effectively promoted and intensified, water quality is improved, water eutrophication is reduced, water quality safety is protected, labor intensity is reduced, and yields are improved. Fishes cultured in the method have the advantages of being natural, safe, nutrient, and fresh and are natural organic fishes.
Description
Technical field
The present invention relates to aquatic products industry cultivation field, be specifically related to a kind of reservoir large area Ecological Fish Culture method.
Background technology
Current China Fisheries Development is being faced with that space resources is day by day in short supply, ecotope worsens increasingly, living resources day by day fail equal pressure, urgently adopts an effective measure, and conscientiously solves.Wherein pond culture has entered the bottleneck phase, and output has approached the limit, and due to the abuse of medicine, fishery-ies product quality can not get consumers in general's approval, and selling price and economic benefit glide.And lake culture is because of the further aggravation of eutrophication, fish crop and fishery-ies product quality also can not get ensureing, have all increased uncertainty to culture benefit.Organic fish production technology is the aquaculture model of ecological, environmental protective, to utilize natural mode to carry out aquaculture product, in whole production process, by reasonable adjusting breeding density and the kind ratio of stocking, make full use of the natural bait in water, with fish water conservation, with water, breed fish, the artifical compound feed of not throwing something and feeding, is not used fishing medicine, does not use the chemosynthesis materials such as chemical fertilizer, carries out ecologic breeding.This pattern not only effectively promotes and reinforcement comprises bio-diversity, biological cycle, can also improve water quality, reduce body eutrophication, protection water quality safety.
Summary of the invention
The invention provides a kind of reservoir large area Ecological Fish Culture method.That the fishing gear of the inventive method cultivation has is natural, safety, nutrition, delicious feature.
Technical scheme of the present invention:
A kind of reservoir large area Ecological Fish Culture method, is characterized in that:
(1) fingerling is thrown in
1. release time and mode: throw in fingerling in annual December, the lee that faces south in reservoir or lake has selected a net to block gulf, storehouse, fingerling being carried out to the adaptability in winter supports temporarily, wait for the coming year according to circumstances, at the beginning of by the end of March to 4 month, put into the large water surface, in addition, when fingerling enters gulf, storehouse, first use the aqueous solution soaking 5-8 minute of Chinese herbal medicine extract insecticide, and then soak 8-10 minute with the saline solution of 3-4%
Described Chinese herbal medicine extract method for producing insecticide is: bulk drug formula: allicin 1-2, three bloom 2-5, pine needle 1-2, Radix Isatidis 1-2, root of kudzu vine 1-2, Herba Andrographitis 3-5, honeysuckle 3-5, oldenlandia diffusa 3-5, hairyvein agrimony 3-8, cordate houttuynia 3-8, siberian motherwort 3-8, plantain seed 2-4, kitchen garden 2-5, capsule of weeping forsythia 3-5, Chinese pulsatilla 1-2, Chinese violet 1-2, subprostrate sophora 1-2
Preparation method: press formula rate weighting raw materials, the bulk drug taking is extracted to water extract or alcohol extract by the conventional method of Chinese herbal medicine, during use, dilute with water 200-300 doubly;
2. throw in specification: how at 4-10 tail/kg,
3. breeding density and blend proportion: breeding density is 4-4.5kg/ mu, silver carp, flathead are than being 2-4:8-6.Silver xenocypris, carp, crucian carp, bream and the grass carp of annual suitably collocation 5-10%,
4. fingerling quality: neat specification, the colour of skin is vivid, and swimming is active, and physique stalwartness is anosis without wound;
(2) daily management
Strengthen water quality adjustment, generally adopt two kinds of methods: the one, spacious pool---throw in the silver carp bighead of the clean water of filter food;
The 2nd, phytal zone, upstream---plant grass and move spiral shell amplification water plants and benthon resource,
2. the control of input in producing, the artifical compound feed of not throwing something and feeding in production, feed source is in reservoir
Natural bait is mainly plankton, benthon, organic debris and pasture and water;
3. making regular check on fish body, detect water quality, note prevention and the remedial efforts of diastrous weather, whether have pollution source, prevent the generation of contamination accident if paying close attention to periphery;
(3) fish for
Carry out reservoir deep water net paper tinsel and fish for, its mainly fish for object be silver carp, flathead, carp, crucian carp etc. at the middle and upper levels and demersal fishes; Can adopt June-September lamp light trapping to lift the fishing style of the common operation of net simultaneously, adopt and lift network technology, netting gear is preset in to fish and assemble under the certain water layer in waters, in the time of in fish are gathered in netting gear, netting gear is promoted to the water surface rapidly and the fishing style that carries out; Utilize the phototaxis of fish, set up light night and be gathered in this with induction fish above the netting gear water surface, described light adopts solar powered; Change and lift the mode that net promotes, in netting gear surrounding, four floating piers are set, when rise net night, four people surely stand on floating pier, are promoted and are lifted net hand and foot, hauling on daytime by hand winch elevator simultaneously.
Beneficial effect of the present invention:
Nursing cost is low, labour intensity is low, and the rate of recapture is high, and output is high, in whole production process, by reasonable adjusting breeding density and the kind ratio of stocking, make full use of the natural bait in water, with fish water conservation, with water, breed fish, the artifical compound feed of not throwing something and feeding, is not used fishing medicine, does not use the chemosynthesis materials such as chemical fertilizer, carries out ecologic breeding.This pattern not only effectively promotes and reinforcement comprises bio-diversity, biological cycle, can also improve water quality, reduce body eutrophication, protection water quality safety.That the fishing gear of the inventive method cultivation has is natural, safety, nutrition, delicious feature, is natural organic fish.
Embodiment
The ten thousand organic fish ecological cultivation methods in Buddhist lake, concrete operations are as follows:
The ten thousand organic fish fingerlings in Buddhist lake are thrown in
1. release time and mode: since the project implementation in 2003, Wan Fohu all throws in fingerling in annual December, is mainly to consider from these several respects: the first, now water temperature is low, a little less than fingerling energy, draws in the net, shipping damage is few.The second, fingerling now physique is stout and strong, and convalescence is long, adapts to large waters environment capacity strong.The 3rd, when the beginning of spring in the coming year, water temperature was gone up, the growth of can ingesting in a large number, has extended vegetative period.The 4th, can exempt the overwinter management of fingerling in pond simultaneously, fingerling cost reduces greatly.Because fingerling is many, from little water bodys such as ponds, to the large water surface, still can not conform immediately, the many cluster activitys of fingerling of just having thrown in, are easy to be catched and killed.Moreover ten thousand Buddhist lake migratory birds in winter are more, very large to fingerling harm.For this reason, company determines to have selected a net to block gulf, storehouse at reservoir East Lake middle part, fingerling is carried out to the adaptability in winter and supports temporarily, send special messenger's nurse in 24 hours to be managed, and waits for the coming year according to circumstances, at the beginning of by the end of March to 4 month, puts into great Ku.In addition, when fingerling enters gulf, storehouse, first use the aqueous solution soaking 5-8 minute of Chinese herbal medicine extract insecticide, and then soak 8-10 minute with 3.5% saline solution,
Wherein, Chinese herbal medicine extract method for producing insecticide is: bulk drug formula: allicin 1.5, three blooms 4, pine needle 1.5, Radix Isatidis 1.5, the root of kudzu vine 1.5, Herba Andrographitis 4, honeysuckle 4, oldenlandia 4, hairyvein agrimony 6, cordate houttuynia 6, siberian motherwort 5, plantain seed 3, kitchen garden 3, the capsule of weeping forsythia 4, the Chinese pulsatilla 1.5, Chinese violet 1.5, subprostrate sophora 1.5
Preparation method: press formula rate weighting raw materials, the bulk drug taking is extracted to water extract or alcohol extract by the conventional method of Chinese herbal medicine, during use, 250 times of dilute with waters;
2. throw in specification: large size fingerling is the necessary condition of volume increase and stable yields.The large high-quality fingerling of specification can improve survival rate, and on the one hand, the larger probability of being ingested by predacious fish and aquatic bird of fingerling is lower; On the other hand, small dimension fingerling is easily run away from block, if block order is diminished, will certainly affect its drainage capacity, easily by flood, is destroyed by rush of water, and loses even more serious; The 3rd, small dimension fingerling physique is bad, and a little less than tolerance, large water surface adaptive capacity is poor, is easy to death.Wan Fohu builds up the nineteen sixty to 1980 year at initial stage and throws in altogether fingerling approximately 100,000,000 tails, and specification is substantially all at 5cm(1.5 cun) more than.To the 80s and 90s, Wan Fohu puts fingerling in a suitable place to breed for when fingerling in age, and specification is not less than 22 tails/kg, and body is grown up many at 13cm(4 cun), in nearly 30 years before 1997, due to the harm of predacious fish, the rate of recapture is less than 1% all.Since this project implementation in 2003, particularly after 2005, strengthen stocking size, how at 4～10 tails/kg(in Table 1).
3. breeding density and blend proportion: breeding density is 4～4.5kg/ mu, silver carp, flathead ratio are 2～4 ﹕ 8～6.As the case may be, annual suitably silver xenocypris, carp, crucian carp, bream and the grass carp etc. of collocation 5～10%.
4. fingerling quality: for the quality that makes fingerling is protected, parent company and fingerling are produced a family and are comprised that organic fingerling kind cultivation base, sheep mountain of own subordinate keeps close ties throughout the year, go aperiodically to make a random inspection, observing its breeding way, whether the sterilization of cleaning up the pond, regulating and controlling water quality, bait feeding, fish disease prevention and cure and daily management etc. can meet the seed requirement of organic fish.Meanwhile, before putting in a suitable place to breed, except specification is made concrete regulation, also arrive pool mouth Direct Test its fingerling richness and physical condition.Fingerling is transported to reservoir, by special technical staff, is again conscientiously examined goods, require to reach quantity abundance, and neat specification, the colour of skin is vivid, and swimming is active, and physique stalwartness is anosis without wound.
Table 1. project implementation over 9 years ten thousand Fo Hu throw in and fish for situation (kg, ten thousand tails)
(3) daily management that the organic sashimi (raw fish) of Wan Fohu produces
1. strengthen water quality adjustment, in accordance with certain organic farming production standard, follow the course of nature and ecological principle, adopt the cultural technique of a series of sustainable developments, create a continual and steady ecotope of breeding fish, make various food organisms remain on a rational state to meet fish and growth needs.Two kinds of methods of the general employing of water quality adjustment: the one, spacious pool is with bio operon---throw in the silver carp bighead of the clean water of filter food; The 2nd, phytal zone, upstream is with restoration of the ecosystem---and plant grass and move spiral shell amplification water plants and benthon resource.2. the control of input in producing, the artifical compound feed of not throwing something and feeding in production, the natural bait of feed source in reservoir, is mainly plankton, benthon, organic debris and pasture and water etc.3. focus on fisheries administrative, often patrol sieve, observe the dynamic of fish.Check the anti-safety of whether escaping to block.Prevent from stealing the events such as fish, malicious fish, electric fish and occur, do safety in production well.Make regular check on fish body, detect water quality, note prevention and the remedial efforts of diastrous weather.Whether have pollution source, prevent the generation of contamination accident simultaneously if also will pay close attention to ten thousand Buddhist lake peripheries.4. carry out various records, comprise that fish production record, fish disease prevention and cure record, fish for transportation record, purchase seed is sold organic fish record etc., set up traceable system.5. regular sampling Detection water quality and marketable fish quality, authenticate once organic silver carp bighead every year, guarantees to meet organic fish standard.
(4) the organic marketable fish of Wan Fohu is fished for technology
The methods multi-source that China's reservoir is fished for is in early days fished in lake, but because reservoir is with a varied topography, the depth of water is larger, and fishing efficiency is scarcely as lake.Last century six the seventies, China reservoir cultivation worker carries out innovation and creation and innovation, has successively occurred reservoir purse seining and has blocked and catch up with associating fishing method, has substantially solved the problem of fishing for of reservoir pelagic fishes.Predecessor's Longhekou Reservoir of Wan Fohu adopts these two kinds of methods mostly in last century.
Since the project implementation in 2003, company repeatedly organizes and fishes for technical staff together with relevant expert every year, to national developed regions empathic learning, learns from else's experience, and absorbs all the useful ideas, and in conjunction with the reality of oneself, within 2005, carries out Fishing Gear and Fishing
Method reform.In Anhui Province, carry out the earliest reservoir deep water net paper tinsel and fish for test, and succeed at one stroke.
Net paper tinsel is a kind of trap class fishing gear, and recent two decades takes the lead in developing rapidly in northern reservoir, and has obtained good effect.The structure composition of this fishing gear is mainly to form the etting of definite shape with synthetic strings braiding, and net paper tinsel etting is laid on the passage of fish movement according to certain mode, is that fish easily enter difficulty and go out and reach and fish for object.Its mainly fish for object be silver carp, flathead, carp, crucian carp etc. at the middle and upper levels and demersal fishes.Perfect through in recent years, deep water net paper tinsel has become the main Fishing Gear and Fishing Method of Wan Fohu.
Meanwhile, in 2006, in a creative way lamp light trapping being lifted to net reforms.Lift net and belong in essence square net fishing gear, it is netting gear to be preset in to fish assemble under the certain water layer in waters, in the time of in fish are gathered in netting gear, netting gear is promoted to the water surface rapidly and the fishing style that carries out.This just requires to accomplish 2 points, the one, and how to allow and fish for object and can be gathered in more in net, the worker of fishing for utilizes the phototaxis of fish, sets up light night and be gathered in this with induction fish above the netting gear water surface; The 2nd, how to promote as soon as possible netting gear, in case fish become separated in flight.The reservoir particularly larger in the depth of water, the shoal of fish more disperses, these 2 seem particularly evident.
According to the situation of fishing for staff response, in conjunction with production actual conditions, company technique personnel carried out bold innovation in 2006 to the original net of lifting.The one, changed and lifted the mode that net promotes, reinforced four floating piers, when rise net night, four people surely stand on floating pier, are promoted and are lifted net hand and foot by hand winch simultaneously, have greatly shortened and have risen the net time, have reduced the possibility of escaping fish; Also postponed to lift rising the fish time of net, changing hauling at night is hauling on daytime simultaneously.The 2nd, changed the power delivery mode of traping light source, reservoir area is with a varied topography, and the water surface is comparatively open, the electric wire that energising need to be very long, Electrical Safety can not get ensureing.And company fishes for technical staff, use one's brains, solar electrical energy generation is applied to this, solved this difficult problem.Through exploration for many years and perfect, lamp light trapping is lifted net has also become the main Fishing Gear and Fishing Method of Wan Fohu.
The ecological reestablishment of phytal zone, upstream
Wan Fohu is hills lake type, directly puts river in storage and mainly contains three, be respectively five aobvious rivers, He Penghe and dawn the Milky Way.Near river mouth, upstream, phytal zone is more, the eighties, aquatic vegetation was abundant, silver xenocypris subfamily and carp crucian aboundresources, but Mo Caisha digs husky spreading unchecked along with last century, phytal zone benthon and Resources of Aquatic Plants are seriously damaged, and the fish such as silver xenocypris, carp, crucian carp, settling down property of bream can not form output thereupon.After seminar carries out the work; the ten thousand Buddhist Lake Water protection schemes of " spacious pool is operating as master, phytal zone take restoration of the ecosystem as main with biology " in 04 year, have been formulated; forbid to adopt sand and dig sand; the benthons such as water plants and spiral shell freshwater mussel have obtained recovery and amplification to a certain degree, and wherein knowing the Milky Way has 3 places, He Penghe and five aobvious rivers respectively to have two place's areas to exceed 10000m
2pasture and water repair district, mostly be Alternanthera philoxeroides (Alternanthera philoxeroides), intend two leaf dichotomous fimbristylis herbs (Fimbristylis diphylloidea) and poly-grass (Myriophyllum spicatum), settled fishes and benthon have obtained very large recovery, particularly the seventies and eighties in last century resourceful Xenocyprininae.For this reason, the national plasm resource protection of the close silver xenocypris of the yellow tail district of ten thousand Fo Hu fishery parent companys in 2010 application has obtained approval and has set up.Along with the foundation of protection zone, strengthened management and punishment, also there is pasture and water area in the phytal zone in gulf, multiple storehouse, upstream.Therefore; following Wan Fohu need to continue to strengthen improvement and the protection to water quality; improve measures; particularly to thoroughly close and affect the point-source pollution of Reservoir Water Quality and strict Control the Plan Pollution Sources; be strictly on guard against revivable; continue to improve every content of restoration of the ecosystem, He Ku gulf, phytal zone, upstream is built up take submerged plant as main " submerged forest " and " Dragon Palace oxygen bar ".
The evaluation analysis that the ten thousand organic sashimi (raw fish) in Buddhist lake produce each technical parameter
(1) Wan Fohu puts fingerling specification, weightening finish multiple and the rate of recapture in a suitable place to breed
Through arduous and very long practice decades in last century, large water surface aquaculture worker understands that large size fingerling is the necessary condition of volume increase and stable yields.The large high-quality fingerling of specification can improve survival rate, and on the one hand, the larger probability of being ingested by predacious fish and aquatic bird of fingerling is lower; On the other hand, small dimension fingerling is easily run away from block, if block order is diminished, will certainly affect its drainage capacity, easily by flood, is destroyed by rush of water, and loses even more serious; The 3rd, small dimension fingerling physique is bad, and a little less than tolerance, large water surface adaptive capacity is poor, is easy to death.Reservoir builds up the nineteen sixty to 1980 year at initial stage and throws in altogether fingerling approximately 100,000,000 tails, and specification is substantially all at 5cm(1.5 cun) more than.To the 80s and 90s, reservoir is put fingerling in a suitable place to breed for when fingerling in age, and specification is not less than 22 tails/kg, and body is grown up many at 13cm(4 cun), in nearly 30 years before 1997, due to the harm of predacious fish, the rate of recapture is less than 1% all.Since this project implementation in 2003, particularly, after 2005, in order to improve the rate of recapture, compress the culture-cycle, obtain marketable fish price advantage, stocking size strengthens year by year, has obtained obvious economic benefit.In recent years stocking size is many at 4～10 tails/kg, and body is grown up many at 20～25cm, and the rate of recapture is stabilized in 30～40%.If by harvesting specification 1.75kg, the rate of recapture approximately 32.3%, 2010 year approximately 35.7%, 2011 approximately 37.7% in 2009, has obvious ascendant trend (see figure 2).
Nearly 9 years organic fishes of table 2. ten thousand Fo Hu are put the seed degree of self-sufficiency (unit: ten thousand kg) in a suitable place to breed
Although the rate of recapture is along with the increasing of throwing in specification is significantly improved, the weightening finish multiple of catches decreases (in Table 3), and Here it is, and 06～08 year increasing integral multiple is significantly higher than the reason of nearest 2 years, can not blindly strengthen as can be seen here specification.
Nearly 30 years stocking sizes of table 3 ten thousand Fo Hu and the relation of fishing for the rate of recapture
(2) ten thousand Buddhist lake marketable fish harvesting specifications and marketable fish price, culture-cycle
Due in recent years comparatively vigorous to the demand of large specification silver carp, flathead marketable fish, particularly bighead selling price more than 3kg is close to and is doubled, and reaches 12～16 yuan/kg, and the second half year in 2011 even reaches 20 yuan/kg, and economic benefit is very remarkable.Only 800,000 kg of 2011 gross annual output amounts, the output value has exceeded 1,000,000 kg of 2010.Therefore, company throws in and has improved fingerling specification, and the last batch of fingerling specification that throw in the end of the year 2011 has reached 300g/ tail, the long 25cm of body left and right.Consider culture-cycle prolongation 1 year, the cost except fingerling all has greatly improved, time lengthening, and the rate of recapture also can decline to some extent.Consider, harvesting specification silver carp is 1.5kg, bighead 2.5kg; 2 years culture-cycles, minority 3 years.Meanwhile, along with playing the increasing of water specification, labour intensity can reduce relatively, and catching rate increases.In a word, company no longer blindly asks most output, but more emphasizes benefit, strives for reaching interests and maximizes.
(3) advance of the organic fish fishing gear of Wan Fohu fishing method
Wan Fohu starts after Fishing Gear and Fishing Method reform, adopt April～October and adopt lamp light trapping to lift the fishing style of the common operation of net in deep water net paper tinsel, June～September, there is like this advantage of three aspects, the one, labour intensity obviously reduces, greatly saved manpower and financial resources, associating fishing method at least wants 20 people could evolutionary operations, and net paper tinsel and lift net and only need 5～6 people to complete.The 2nd, for perennially fish for provide may, perennially fish for to catch and stay greatly littlely, be equivalent to carrying out single step of releasing foot, wheel is caught all the time.And associating fishing method is because net vice-minister, labour intensity are large, only can carries out seasonality and fish for.The 3rd, organic marketable fish quality has obtained guarantee, net paper tinsel and lift net and fish for and all belong to passive mild, and fishery harvesting is not subject to anyly emergently entering netting gear, completes and fishes for, and meets the requirement of Organic certification, has accomplished the few injures and deaths of no pain.
(4) the organic fish production model of Wan Fohu is optimized
By the ten thousand organic sashimi (raw fish) in Buddhist lake, produce technical Analysis, form comparatively perfect ecological stocking model, in Table 4
The table 4 ten thousand organic fish production models in Buddhist lake
Claims (1)
1. a reservoir large area Ecological Fish Culture method, is characterized in that:
(1) fingerling is thrown in
1. release time and mode: throw in fingerling in annual December, the lee that faces south in reservoir or lake has selected a net to block gulf, storehouse, fingerling being carried out to the adaptability in winter supports temporarily, wait for the coming year according to circumstances, at the beginning of by the end of March to 4 month, put into the large water surface, in addition, when fingerling enters gulf, storehouse, first use the aqueous solution soaking 5-8 minute of Chinese herbal medicine extract insecticide, and then soak 8-10 minute with the saline solution of 3-4%
Described Chinese herbal medicine extract method for producing insecticide is: bulk drug formula: allicin 1-2, three bloom 2-5, pine needle 1-2, Radix Isatidis 1-2, root of kudzu vine 1-2, Herba Andrographitis 3-5, honeysuckle 3-5, oldenlandia diffusa 3-5, hairyvein agrimony 3-8, cordate houttuynia 3-8, siberian motherwort 3-8, plantain seed 2-4, kitchen garden 2-5, capsule of weeping forsythia 3-5, Chinese pulsatilla 1-2, Chinese violet 1-2, subprostrate sophora 1-2
Preparation method: press formula rate weighting raw materials, the bulk drug taking is extracted to water extract or alcohol extract by the conventional method of Chinese herbal medicine, during use, dilute with water 200-300 doubly;
2. throw in specification: 4-10 tail/kg,
3. breeding density and blend proportion: breeding density is 4-4.5kg/ mu, silver carp, flathead are than being 2-4:6-8;
Silver xenocypris, carp, crucian carp, bream and the grass carp of annual suitably collocation 5-10%,
4. fingerling quality: neat specification, the colour of skin is vivid, and swimming is active, and physique stalwartness is anosis without wound;
(2) daily management
1. strengthen water quality adjustment, adopt two kinds of methods: the one, spacious pool---throw in silver carp, the bighead of the clean water of filter food; The 2nd, phytal zone, upstream---plant grass and move spiral shell amplification water plants and benthon resource,
2. the control of input in producing, the artifical compound feed of not throwing something and feeding in production, the natural bait of feed source in reservoir, is mainly plankton, benthon, organic debris and pasture and water;
3. making regular check on fish body, detect water quality, note prevention and the remedial efforts of diastrous weather, whether have pollution source, prevent the generation of contamination accident if paying close attention to periphery;
(3) fish for
Carry out reservoir deep water net paper tinsel and fish for, its mainly fish for object be silver carp, flathead, carp, crucian carp at the middle and upper levels and demersal fishes; Simultaneously adopt lamp light trapping June-September, lift the fishing style of the common operation of net, adopt and lift network technology, netting gear is preset in to fish and assembles under the water layer of waters, in the time of in fish are gathered in netting gear, netting gear is promoted to the water surface rapidly and the fishing style that carries out; Utilize the phototaxis of fish, set up light night and be gathered in this with induction fish above the netting gear water surface, described light adopts solar powered; Change and lift the mode that net promotes, in netting gear surrounding, four floating piers are set, when rise net night, four people surely stand on floating pier, are promoted and are lifted net hand and foot, hauling on daytime by hand winch elevator simultaneously.
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| CN106804515A (en) * | 2017-02-09 | 2017-06-09 | 合肥隆扬农业科技有限公司 | A kind of Ecological Fish Culture system |
| CN107223606A (en) * | 2017-06-26 | 2017-10-03 | 铜仁市万山区生态渔业养殖有限公司 | A kind of stereoscopic cultivation method of bighead |
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| RU2028049C1 (en) * | 1992-02-03 | 1995-02-09 | Сибирский научно-исследовательский и проектно-конструкторский институт рыбного хозяйства | Shallow reservoir for marketable fish breeding |
| KR100820041B1 (en) * | 2007-08-03 | 2008-04-08 | 김종철 | Fish breeding method using osmotic pressure control ability thereof |
| CN101720682B (en) * | 2008-10-24 | 2012-12-12 | 中国科学院水生生物研究所 | Lake mandarin fish scale culturing method |
| JP2010110255A (en) * | 2008-11-06 | 2010-05-20 | Eco Green:Kk | Structure of artificial seaweed bed, and construction method for creating artificial seaweed bed |
| RU2393668C1 (en) * | 2009-01-11 | 2010-07-10 | Государственное образовательное учреждение высшего профессионального образования "Тюменский государственный университет" | Method for creation of brood stock and peled caviar collection base |
| CN102524133B (en) * | 2012-02-11 | 2013-11-20 | 西南大学 | Method for breeding chubs and bighead carps in reservoirs or lakes |
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