CN105900882A - Breeding method for purifying lake and reservoir water quality by means of fishes, shrimps, clams and grass - Google Patents
Breeding method for purifying lake and reservoir water quality by means of fishes, shrimps, clams and grass Download PDFInfo
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- CN105900882A CN105900882A CN201610303579.8A CN201610303579A CN105900882A CN 105900882 A CN105900882 A CN 105900882A CN 201610303579 A CN201610303579 A CN 201610303579A CN 105900882 A CN105900882 A CN 105900882A
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- 230000001488 breeding effect Effects 0.000 claims abstract description 43
- 241000376029 Tachysurus fulvidraco Species 0.000 claims abstract description 40
- 238000000746 purification Methods 0.000 claims abstract description 32
- 239000013505 freshwater Substances 0.000 claims abstract description 28
- 238000000034 method Methods 0.000 claims abstract description 21
- 241000498251 Hydrilla Species 0.000 claims abstract description 14
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Classifications
-
- 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
-
- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01G—HORTICULTURE; CULTIVATION OF VEGETABLES, FLOWERS, RICE, FRUIT, VINES, HOPS OR SEAWEED; FORESTRY; WATERING
- A01G33/00—Cultivation of seaweed or algae
-
- 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
- C02F3/32—Biological treatment of water, waste water, or sewage characterised by the animals or plants used, e.g. algae
- C02F3/322—Biological treatment of water, waste water, or sewage characterised by the animals or plants used, e.g. algae use of algae
-
- 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
- C02F3/32—Biological treatment of water, waste water, or sewage characterised by the animals or plants used, e.g. algae
- C02F3/327—Biological treatment of water, waste water, or sewage characterised by the animals or plants used, e.g. algae characterised by animals and plants
-
- 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
-
- 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)
- Engineering & Computer Science (AREA)
- Environmental Sciences (AREA)
- Biotechnology (AREA)
- Biodiversity & Conservation Biology (AREA)
- Botany (AREA)
- Marine Sciences & Fisheries (AREA)
- Microbiology (AREA)
- Hydrology & Water Resources (AREA)
- Environmental & Geological Engineering (AREA)
- Water Supply & Treatment (AREA)
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Animal Husbandry (AREA)
- Zoology (AREA)
- Farming Of Fish And Shellfish (AREA)
Abstract
The invention discloses a breeding method for purifying lake and reservoir water quality by means of fishes, shrimps, clams and grass. According to the method, a lake and reservoir water quality purification ecological breeding region is established, and a three-dimensional breeding mode is formed by fully utilizing the fishes, shrimps, clams and grass at the upper layer, the middle layer, the lower layer and the bottom layer of the breeding region. The lake and reservoir water quality purification ecological breeding region is arranged at a lake and reservoir outlet, eutrophic lake water, obtained after aquaculture, of other regions of the lake and reservoir can flow to the lake and reservoir water quality purification ecological breeding region conveniently, and the lake and reservoir water quality purification ecological breeding region serves as the main feed source and plays the role of purifying the water quality. According to the method, only one feed is used, the use ratio of the feed is high, discharge of nitrogen, phosphorus and the like is low, and water environment protection is promoted. In addition, excreta of the fishes, shrimps and clams who take food is used for growth of hydrilla verticillata which provides natural fish nests for parents of yellow catfishes, freshwater shrimps and corbicula fluminea, and the natural fish nests are used for adhesion and incubation of zygotes of the fishes, shrimps and clams; meanwhile, hydrilla verticillata plays the role of improving the bottom environment of the breeding region, cyclic utilization of the fishes, shrimps, clams and grass in the lake and reservoir water quality purification ecological breeding region is formed, fishery development is achieved, and water environment protection is considered simultaneously.
Description
Technical field
The invention belongs to aquaculture method technical field, be specifically related to a kind of utilize fishes and shrimps a species of small clam living in fresh water grass to purify storehouse, lake water quality
Cultural method.
Background technology
Fisheries Development is the optimal path solving world's high-quality protein supply problem, and culture fishery is rapidly sent out in recent years
Exhibition, aquaculture model is also cultivated high density large-scale development by single variety.But when inland lake, reservoir carry out aquaculture,
The behaviors such as heavy dressing, bait throwing in, medication cause lake, reservoir ecosystem fragmentation, excessively put in a suitable place to breed, aquaculture structure is single, water
The problems such as matter deterioration, fishery resources slump of disastrous proportions, water quality degenerate.Therefore, inland lake, reservoir culture research were gradually from the past
Experience is put type in a suitable place to breed and is developed to quantitative dynamic model management type technology, based on the propagation of high-quality fish, by lake, water
The modelling of the storehouse ecosystem, is estimated the Ecology Action putting kind in a suitable place to breed, for the different ecosystems, carries out fishery
The dynamic evaluation of capacity, while improving the fishery output value, it is ensured that lake, the sound development of reservoir ecosystem.Based on Hu Ku
The aquaculture new model of ecological safety, it is achieved raise scattered to concentrating standardization cultivation to change from individuality, conservative control cultivation scale；
Pond on a hill reservoir " fish, duck, pig " novel solid aquaculture model, the type water resource protection of storehouse, lake and fishery economic coordinated development pattern are developed
Deng, various lake storehouse aquaculture model and method are under study for action.Storehouse, lake ecological cultivation method is that China's culture fishery is coordinated sustainable
The inevitable outcome of development, how building storehouse, efficient low-discharging lake Eco-breeding pattern has become Fisheries Development and water environment protection skill
One of hot issue of art research.
Summary of the invention
It is an object of the invention to provide a kind of discharge reducing breeding wastewater, not only develop fishery but also take into account water environment protection
Fishes and shrimps a species of small clam living in fresh water grass is utilized to purify the cultural method of storehouse, lake water quality.
For achieving the above object, the present invention takes techniques below scheme,
A kind of cultural method utilizing fishes and shrimps a species of small clam living in fresh water grass to purify storehouse, lake water quality, its step is,
(1) away from the delivery port 30-200 rice of Hu Ku, cross purification of water quality ecologic breeding district, storehouse, lake with wire net, level bottom of the reservior, lake
Portion, removes wild fishes；
(2), when the mean depth in purification of water quality ecologic breeding district, storehouse, water temperature 0-10 DEG C lake is not less than 50cm, 2-3 tail/kg is thrown in
The freshwater shrimp parent of Pelteobagrus fulvidraco parent 30-50 tail/kg of flathead winter sheet fingerling 5-10 tail/kg of silver carp winter sheet fingerling 3-5 tail/kg
And the Corbicula fluminea parent of 80-150/kg, breeding density is silver carp winter sheet fingerling 40-50 tail/667m2Flathead winter sheet fingerling 120-150
Tail/667m2Pelteobagrus fulvidraco parent 40-50kg/667m2Freshwater shrimp parent 10-20kg/667m2Corbicula fluminea parent 30-50kg/667m2；
(3) when water temperature more than 15 DEG C, bottom purification of water quality ecologic breeding district, storehouse, lake, hydrilla verticillata is transplanted；
(4) when water temperature more than 20 DEG C, twice Pelteobagrus fulvidraco perfect compound feed of throwing something and feeding every day.
As optimization, in step (1), purification of water quality ecologic breeding district, storehouse, described lake area accounts for the 5-of storehouse, the lake gross area
100‰；
As optimization, in step (2), preferably water temperature 5-10 DEG C；
As optimization, in step (3), every 667m2By hydrilla verticillata kind 0.5-1.0kg, should incite somebody to action by row, spacing in the rows 50 centimetres during sowing
Bud bud 3-5 grain is mixed silt and is broadcasted sowing；
As optimization, in step (4), twice Pelteobagrus fulvidraco perfect compound feed of throwing something and feeding in every morning 9 point, at 3 in afternoon, throw something and feed for twice
Ratio 1:1-2；
As optimization, in step (4), Pelteobagrus fulvidraco perfect compound feed 150-180 days of throwing something and feeding；
As optimization, in step (4), total amount of throwing something and feeding every day is the 3-5% of Pelteobagrus fulvidraco body weight by weight percentage；
As optimization, from the beginning of step (1), within every 20-30 days, use a quick lime regulating water quality, quick lime consumption 10-15kg/
667m2。
The present invention uses net near the delivery port of storehouse, lake to enclose certain area, sets up purification of water quality ecologic breeding district, storehouse, lake, fully
Utilize upper, middle and lower, culture zone, bottom, the three-dimensional culture pattern that fish, shrimp, a species of small clam living in fresh water, grass mutually utilize.Storehouse, lake of the present invention purification of water quality
Ecologic breeding district is located at Hu Ku outlet, it is simple to by eutrophic lake water after other region aquacultures of Hu Ku to storehouse, lake purification of water quality
Flowing in ecologic breeding district, as the major feed source in purification of water quality ecologic breeding district, storehouse, lake, plays purifying water quality, raising
Use a kind of feed as auxiliary fodder during Yanging, i.e. Pelteobagrus fulvidraco perfect compound feed, the utilization rate of feed is high, nitrogen, phosphorus etc.
Discharge low, beneficially water environment protection.Fish, shrimp, a species of small clam living in fresh water ingest after excreta, it is provided that to hydrilla verticillata grow, hydrilla verticillata is given
Pelteobagrus fulvidraco, freshwater shrimp, Corbicula fluminea parent provide natural fish nest, and for the attachment of fishes and shrimps a species of small clam living in fresh water embryonated egg, hatching, meanwhile, hydrilla verticillata plays and changes
Environmental activity bottom kind culture zone, fish, shrimp, a species of small clam living in fresh water, grass recycle in purification of water quality ecologic breeding district, storehouse, lake composition, have both developed fishing
Industry takes into account again water environment protection.
Accompanying drawing explanation
Fig. 1 is purification of water quality ecologic breeding district, storehouse, embodiment of the present invention lake schematic diagram；
Fig. 2 is purification of water quality ecologic breeding district, storehouse, embodiment of the present invention lake sectional view；
The common culture zone of 1-Hu Ku, 2-delivery port, 3-the first wire net, 4-the second wire net, purification of water quality ecologic breeding district, storehouse, 5-lake,
51-silver carp layer, 52-bighead layer, 53-Pelteobagrus fulvidraco layer, 54-freshwater shrimp layer, 55-Corbicula fluminea layer, 6-hydrilla verticillata.
Detailed description of the invention
Below in conjunction with specific embodiment, the present invention is further described.
Embodiment 1
A kind of cultural method utilizing fishes and shrimps a species of small clam living in fresh water grass to purify storehouse, lake water quality:
(1) purification of water quality ecologic breeding district, storehouse, lake prepares: little reservoir level 1.0-2.0 rice, reservoir water surface area 60 mu, at low water
Phase, separate out at 50 meters of the mouth of a river with composition the first wire nets 3 such as polyethylene mesh sheet or bamboo chips, separate out and use polythene net at 100 meters of the mouth of a river
Composition second wire net 4 such as sheet or bamboo chip, crosses 6 mu of waters surface as purification of water quality ecologic breeding district, storehouse, lake 5, and clears up bottom of the reservior, protect
Maintaining an equal level smooth, electrical network removes wild fishes；Other waters of little reservoir are the common culture zone of Hu Ku, the economic aquatic products of normal cultivation；
(2) fingerling and parent throw in: when water temperature is less than 10 DEG C, input silver carp winter sheet fingerling, flathead winter sheet fingerling, Pelteobagrus fulvidraco, freshwater shrimp and
Corbicula fluminea parent, stocking size is respectively 2-3 tail/kg, 3-5 tail/kg, 5-10 tail/kg, 30-50 tail/kg, 80-150/kg, puts
Foster density is respectively 50 tails/667m2, 150 tails/667m2、50kg/667m2、20kg/667m2, 50kg/667m2；
(3) plant grass: when water temperature is more than 15 DEG C, plant hydrilla verticillata 6, select fine day sowing, with kind of a 0.5-1.0kg, sow for every mu
Time bud bud 3-5 grain should be mixed silt broadcasted sowing by row, spacing in the rows 50 centimetres；
(4) throw something and feed: when water temperature more than 20 DEG C, twice Pelteobagrus fulvidraco perfect compound feed of throwing something and feeding in every morning 9 point, at 3 in afternoon, two
Secondary ratio 1:1 of throwing something and feeding, total amount of throwing something and feeding every day is the 3-5% of Pelteobagrus fulvidraco body weight by weight percentage；Pelteobagrus fulvidraco full price of throwing something and feeding is joined
Close feed 150-180 days；
(5), from the beginning of step (1), within every 20-30 days, use a quick lime regulating water quality, consumption 10-15kg/667m2, raw stone
After ash is melted into water, uniformly splashing in purification of water quality ecologic breeding district, storehouse, lake, cultivating total cycle is 250-300 days.
After cultivation terminates, aquaculture product is fished in clear storehouse, and cultivation the results are shown in Table 1.
。
In breeding process, the common culture zone of Hu Ku respectively at little reservoir and delivery port water intaking, test water quality, test knot
Fruit is shown in Table 2 and table 3.
。
。
Embodiment 2
(1) purification of water quality ecologic breeding district, storehouse, lake prepares: 2013, and blue or green haze lake stage 1.0-2.0 rice, area 1.7 ten thousand mu, withered
The water phase, separate out at 60 meters of the mouth of a river with composition the first wire nets 3 such as polyethylene mesh sheet, bamboo chips, separate out and use polythene net at 200 meters of the mouth of a river
Composition second wire net 4 such as sheet, bamboo chip, crosses 100 mu of waters surface as purification of water quality ecologic breeding district, storehouse, lake 5, cleaning bottom of the reservior, holding
Smooth, and remove wild fishes with electrical network；Other waters of blue or green Lan Hu are the common culture zone of Hu Ku, the economic aquatic products of normal cultivation
Product；
(2) fingerling and parent throw in: when water temperature is less than 10 DEG C, input silver carp winter sheet fingerling, flathead winter sheet fingerling, Pelteobagrus fulvidraco, freshwater shrimp and
Corbicula fluminea parent, stocking size is respectively 2-3 tail/kg, 3-5 tail/kg 5-10 tail/kg, 30-50 tail/kg, 80-150/kg, puts
Foster density is respectively 50 tails/667m2, 150 tails/667m2、40kg/667m2、20kg/667m2, 40kg/667m2；
(3) plant grass: when water temperature is more than 15 DEG C, plant hydrilla verticillata 6, select fine day sowing, with kind of a 0.5-1.0kg, sow for every mu
Time bud bud 3-5 grain should be mixed silt broadcasted sowing by row, spacing in the rows 50 centimetres；
(4) throw something and feed: when water temperature more than 20 DEG C, twice Pelteobagrus fulvidraco perfect compound feed of throwing something and feeding in every morning 9 point, at 3 in afternoon, two
Secondary ratio 1:2 of throwing something and feeding, total amount of throwing something and feeding every day is the 3-5% of Pelteobagrus fulvidraco body weight by weight percentage；Pelteobagrus fulvidraco full price of throwing something and feeding is joined
Close feed 150-180 days；
(5) within every 20-30 days, use a quick lime regulating water quality, consumption 10-15kg/667m2, the culture-cycle is 280-320 days.
After cultivation terminates, aquaculture product is fished in clear storehouse, and cultivation the results are shown in Table 4.
。
In breeding process, fetching water respectively at the common culture zone of little reservoir and delivery port, test water quality, test result is shown in
Table 5 and table 6.
。
。
In two embodiments of the invention, mu increases economic efficiency more than 5000 yuan, reduces breeding wastewater discharge, comparison
Water environment quality standard (GB3838-2002), can reach III class water quality standard, achieve good economy and ecological benefits.
In the present invention, by kind of a grass, on the one hand purify water, on the other hand as the fish of Pelteobagrus fulvidraco parent's natural propagation
Nest, Pelteobagrus fulvidraco fish-egg is attached on grass, after Pelteobagrus fulvidraco young membrane, utilizes the natural bait opening in storehouse, lake, then by throwing something and feeding
Pelteobagrus fulvidraco perfect compound feed is raised and is grown up.
The present invention makes full use of in purification of water quality ecologic breeding district, storehouse, lake different biological water layer distribution, and water body is vertical
Direction is divided into silver carp layer 51, bighead layer 52, Pelteobagrus fulvidraco layer 53, algae freshwater shrimp layer 54 and Corbicula fluminea layer 55 from top to bottom, fish, shrimp, a species of small clam living in fresh water,
Grass mutually utilizes, and wherein Pelteobagrus fulvidraco, freshwater shrimp and Corbicula fluminea all throw in parent, utilize natural propagation mode to breed, are different from biography
System breeding way throws in the young.The silver carp of input, bighead, the plankton of the superiors in water body of ingesting, plays regulating water quality, fall
Low Water Eutrophication effect；The Corbicula fluminea of the bottom, can be with natural propagation when water temperature more than 20 DEG C, having in water body of can ingesting
Machine chip and algae, played the effect of carbon sequestration and enriching heavy metal, thus reduce breeding wastewater discharge by the growth of shell；Place
Pelteobagrus fulvidraco in intermediate layer, can be with natural propagation when water temperature more than 20 DEG C, and the seed opening phase ingests natural bait, takes the photograph after turning food
Food Pelteobagrus fulvidraco perfect compound feed；Freshwater shrimp when water temperature more than 20 DEG C, can with natural propagation, feeding plant fragment, water plant,
The natural baits such as the young of aquatic terrestrial insect, filamentous algae, set algae, play make full use of with clean water bottom environment；Raw stone
The use of ash, can be with regulating water quality, it is also possible to supplement calcium, carbon sequestration and promotion freshwater shrimp cast off a skin growth.Additionally, the life that the present invention uses
State cultural method has only to use a kind of feed, i.e. Pelteobagrus fulvidraco perfect compound feed, and the utilization rate of feed is high, and nitrogen, phosphorus etc. discharge
Low, beneficially water environment protection.Fish, shrimp, a species of small clam living in fresh water ingest after excreta, it is provided that growing to hydrilla verticillata, hydrilla verticillata gives yellow forehead
Fish, freshwater shrimp, Corbicula fluminea parent provide natural fish nest, and for the attachment of fishes and shrimps a species of small clam living in fresh water embryonated egg, hatching, meanwhile, hydrilla verticillata plays improvement and supports
Growing environmental activity bottom district, fish, shrimp, a species of small clam living in fresh water, grass constitute in purification of water quality ecologic breeding district, storehouse, lake and recycle, not only developed fishery but also
Take into account water environment protection.
Pelteobagrus fulvidraco feeding habits be carnivorous be main ominivore-fish, thus all can avoid in normal aquaculture as far as possible
Mixing cultivation Pelteobagrus fulvidraco, in order to avoid the yield affected in common storehouse, existing Pelteobagrus fulvidraco is substantially wild natural growth, and yield is not
High.But it is as the improvement of people's living condition, the demand of Pelteobagrus fulvidraco is also gradually increased.The present invention is by introducing Pelteobagrus fulvidraco
In purification of water quality ecologic breeding district, storehouse, lake, not only improve Reservoir Water Quality, also concentrate cultivation Pelteobagrus fulvidraco, to meet the market demand.
In embodiment 1, purification of water quality ecologic breeding district, storehouse, lake Pelteobagrus fulvidraco throws in 50kg/667m2, yield is 250kg/667m2, every 667m2
Having a net increase of the natural yield of Pelteobagrus fulvidraco in the common culture zone of 200kg, Hu Ku is 0.5kg/667m2；In embodiment 2, Pelteobagrus fulvidraco is thrown in
40kg/667m2, yield is 220kg/667m2, every 667m2Have a net increase of 180kg, Pelteobagrus fulvidraco in the common culture zone of Hu Ku of blue or green Lan Hu
Natural yield be 0.1kg/667m2.Water quality situation passes through table 2,3 and table 5,6 comparative analysis, and Hu Ku crosses storehouse, lake purification of water quality
Ecologic breeding district carries out three-dimensional culture, and water body is behind purification of water quality ecologic breeding district, storehouse, lake, and delivery port discharge water can reach III
Class water quality standard, will not cause burden to water environment, beneficially water environment protection.
Claims (8)
1. utilizing fishes and shrimps a species of small clam living in fresh water grass to purify a cultural method for storehouse, lake water quality, its step is,
(1) away from the delivery port 30-200 rice of Hu Ku, cross purification of water quality ecologic breeding district, storehouse, lake with wire net, level bottom of the reservior, lake
Portion, removes wild fishes；
(2), when the mean depth in purification of water quality ecologic breeding district, storehouse, water temperature 0-10 DEG C lake is not less than 50cm, 2-3 tail/kg is thrown in
The freshwater shrimp parent of Pelteobagrus fulvidraco parent 30-50 tail/kg of flathead winter sheet fingerling 5-10 tail/kg of silver carp winter sheet fingerling 3-5 tail/kg
And the Corbicula fluminea parent of 80-150/kg, breeding density is silver carp winter sheet fingerling 40-50 tail/667m2Flathead winter sheet fingerling 120-150
Tail/667m2Pelteobagrus fulvidraco parent 40-50kg/667m2Freshwater shrimp parent 10-20kg/667m2Corbicula fluminea parent 30-50kg/667m2；
(3) when water temperature more than 15 DEG C, bottom purification of water quality ecologic breeding district, storehouse, lake, hydrilla verticillata is transplanted；
(4) when water temperature more than 20 DEG C, twice Pelteobagrus fulvidraco perfect compound feed of throwing something and feeding every day.
2. cultural method as claimed in claim 1, it is characterised in that in step (1), purification of water quality ecologic breeding district, storehouse, described lake
Area accounts for the 5-100 ‰ of storehouse, the lake gross area.
3. cultural method as claimed in claim 1, it is characterised in that in step (2), water temperature is 5-10 DEG C.
4. cultural method as claimed in claim 1, it is characterised in that in step (3), every 667m2By hydrilla verticillata kind 0.5-
1.0kg, should be mixed silt by bud bud 3-5 grain broadcasted sowing by row, spacing in the rows 50 centimetres during sowing.
5. as claimed in claim 1 cultural method, it is characterised in that in step (4), throws something and feeds two in every morning 9 point, at 3 in afternoon
Secondary Pelteobagrus fulvidraco perfect compound feed, ratio 1:1-2 of throwing something and feeding for twice.
6. cultural method as claimed in claim 1, it is characterised in that in step (4), throw something and feed Pelteobagrus fulvidraco perfect compound feed 150-
180 days.
7. cultural method as claimed in claim 1, it is characterised in that in step (4), total amount of throwing something and feeding every day is for percentage by weight
The 3-5% of the Pelteobagrus fulvidraco body weight of meter.
8. cultural method as claimed in claim 1, it is characterised in that from the beginning of step (1), stone is once given birth in use in every 20-30 days
Ash regulating water quality, quick lime consumption 10-15kg/667m2。
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| CN111387093A (en) * | 2020-04-21 | 2020-07-10 | 广西壮族自治区水产科学研究院 | Silver carp and bighead carp separated proliferation type reservoir water purification fishery culture method and culture system |
| CN112005937A (en) * | 2020-09-04 | 2020-12-01 | 泗阳县双高水产科技有限公司 | Ecological breeding mode of weever and corbicula fluminea |
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