CN103385187B - Plagiognathops microlepis fish and sturgeon intercropping method - Google Patents
Plagiognathops microlepis fish and sturgeon intercropping method Download PDFInfo
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- CN103385187B CN103385187B CN201310265615.2A CN201310265615A CN103385187B CN 103385187 B CN103385187 B CN 103385187B CN 201310265615 A CN201310265615 A CN 201310265615A CN 103385187 B CN103385187 B CN 103385187B
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- 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
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Abstract
The invention discloses a plagiognathops microlepis fish and sturgeon intercropping method, which comprises the following steps of firstly performing disinfection treatment on a cement culture pond and waiting for releasing plagiognathops microlepis fish fry after disinfection; during the period after the plagiognathops microlepis fish fry is released before sturgeon fish fry is released, not feeding feedstuff to the plagiognathops microlepis fish fry, and partitioning the periphery of a food platform by using meshes about five days before the sturgeon fish fry is bred; releasing the sturgeon fish fry and breeding the sturgeon fish fry in a greenhouse; transferring the sturgeon fish fry bred in the greenhouse to deepwater net cages in a reservoir for marketable fish breeding; and finally scientifically breeding the sturgeon fish fry until marketable sturgeon comes into the market. According to the method, a single greenhouse perennial drainage breeding method is combined with a deepwater net cage breeding method in the reservoir, and a breeding mode of intercropping plagiognathops microlepis fish is adopted, so that the purpose that residual feeds, excrement of sturgeon and lichen generated in a pond are eliminated is achieved, so as to reduce the cost of marketable sturgeon breeding and the waste of environment and resources.
Description
Technical field
The present invention relates to the cultural method of sturgeon, is a kind of cultural method improving sturgeon survival rate specifically.
Background technology
Sturgeon belongs to cold water fishes, fast growth, Fresh & Tender in Texture, is one of special aquatic products product of better economic result.The main sturgeon cultivation mode in current East China is greenhouse perennial draingage cultivation, and this mode is under sunshade green house, with square cement culturing pool high-density breeding sturgeon.The size in general square pond is long 8---10 meters, wide by 8---10 meters, and high 1 meter, employing pvc pipe aeration, is designed with sewage draining exit at the bottom of pond in the pond in.In breeding process general adult fish culture density domination 15-20 bar/square, aerator must uninterrupted oxygen supply in 24 hours, while water pump constantly extract Deep Underground water or reservoir lower layer of water carries out perennial draingage operation, thus guarantee that sturgeon grows safely.Although this kind of cultural method Technical comparing is ripe, but in sturgeon process of growth, eat surplus residual bait and sturgeon excreta accumulates over a long period in pond, destroy culturing pool water quality, affect the environment needed for sturgeon growth, can moss be produced in pond simultaneously, the significant wastage that perennial draingage effect can cause water resource and electric power resource is carried out by means of only water pump, and the rising of labor cost, finally cause commodity sturgeon cultivation cost to remain high, lack competitiveness.
Summary of the invention
In order to overcome the deficiencies in the prior art, the object of the present invention is to provide and a kind ofly can improve sturgeon survival rate, the Plagiognathops microlepis fish reducing sturgeon cultivation cost and sturgeon cover breeding method.
In order to solve the problems of the technologies described above, the technical solution adopted in the present invention is: a kind of Plagiognathops microlepis fish and sturgeon cover breeding method, the method comprises the steps:
The first step, cement culturing pool is disinfected: first in cement culturing pool, be filled to setting height place, requires that inflow temperature is lower than less than 28 degrees Celsius; Then carry out culturing pool sterilization with potassium permanganate, potassium permanganate consumption is every cube of water body 8-10 gram, disinfecting time 48 hours; All given out light by water body in culturing pool after sterilization, refill reservoir water to above-mentioned set At The Height, open aerator simultaneously and carry out aeration oxygen replenishing, dissolved oxygen in water will remain on more than 4ml/L, waits for and puts seedling;
Second step, Plagiognathops microlepis fry kind is thrown in: stocking size 25-35 bar/kg, and breeding density is every square metre of 3-5 bar; Put into cement culturing pool to propagate artificially; Plagiognathops microlepis fry seed is terminated in annual input by the end of March;
3rd step, feeding and management: this one-phase before throwing in sturgeon seed after Plagiognathops microlepis fry kind is thrown in, because temperature, water temperature are not high, the activity of fish is not too strong, and breeding density is little in addition, does not need to carry out feedstuff feeding to Plagiognathops microlepis fish, but should before sturgeon is put in a suitable place to breed about 5 days, the polyethylene mesh sheet being 1cm in the surrounding mesh of food platform separates, in case Plagiognathops microlepis fish robs food to food platform, the size of mesh should adjust according to fingerling growing state in good time;
4th step, sturgeon seed is thrown in: select appearance not damaged, and without the sturgeon seed of deformity, seed size is 8-12 centimetre; Seed first uses the salt water dipping bath 5-10 minute of 3%-5% concentration before putting into cement culturing pool, after put into cement culturing pool and propagate artificially; Breeding density is every square metre of 30-40 bar;
5th step, sturgeon seed greenhouse cultivation process: sturgeon seed opens inlet valve after putting into immediately, flow of inlet water controls at 3-5 ton per hour, and within 24 hours, uninterruptedly supply water, water temperature requires lower than less than 28 degrees Celsius; After sturgeon seed enters pond, select crude protein manually to throw something and feed at the expanded heavy property feed of 42%-45%, every day throws something and feeds 4-5 time, and each feeding volume is the 3%-5% of sturgeon fish body weight; Every day adopts the mode of manual operation soil pick-up pump to carry out soil pick-up at the bottom of pond to culturing pool, and soil pick-up standard is without ight soil and residual bait at the bottom of pond;
6th step, sturgeon carries out marketable fish cultivation at reservoir deep water mesh cage: when sturgeon seed cultivates 150-200 gram in greenhouse cement culturing pool, just transfer them in reservoir deep water mesh cage and carry out marketable fish fattening stage; Cages in reservoir culturing area will be selected in water quality good, the depth of water 8 meters, should have miniflow, wind sheltering, the large reservoir water surface that faces south simultaneously; The juvenile fish that the sturgeon of putting in each deep water mesh cage will select size basically identical, 30-35 bar juvenile fish put into by every square of net cage;
7th step, scientific feeding: the morning, noon and afternoon will be carried out every day and respectively throw something and feed once, feed of throwing something and feeding selects crude protein to be the expanded heavy property feed of 40%-42%, and each feeding volume is the 2%-4% of fish body weight in case, and feeding volume also needs to adjust feeding volume in time according to the situation of ingesting of weather water temperature and sturgeon simultaneously; Sturgeon to enter after net cage every case quicklime 2-3 kilogram every 15-20 days, and add water in quicklime and to splash after stirring in net cage body and nearby waters, every day 1 time, for three days on end, carry out disinfection diseases prevention; Adhere to that the morning, noon and afternoon patrol case inspection, finding that there is dead fish will pull out in time, repeats this step feeding patterns one until marketable fish listing.
Beneficial effect: compared with prior art, advantage of the present invention is: single greenhouse perennial draingage cultivation and reservoir deep-water net cage culture are combined together, and adopt cover to support the aquaculture model of Plagiognathops microlepis fish, reach the object removing the moss produced in residual bait, sturgeon excreta and pond, thus reduce commodity sturgeon cultivation cost, reduce the waste to environment and resource.
Embodiment
Below in conjunction with embodiment, the present invention is described in further detail.It should be pointed out that for those skilled in the art, under the premise without departing from the principles of the invention, can also make some improvement, these improvement also should be considered as protection scope of the present invention.
Embodiment 1:
The first step, cement culturing pool is disinfected: 0.8 meter, injecting tank water in the square cement culturing pool of length 8 meters, width 8 meters, height 1 meter, requires that inflow temperature is lower than less than 28 degrees Celsius.Then carry out culturing pool sterilization with potassium permanganate, potassium permanganate consumption be every cube of water body with 8 grams, disinfecting time 48 hours.After sterilization, water body in culturing pool is all given out light, refill reservoir water to pond high 0.8 meter of, simultaneously open aerator carry out aeration oxygen replenishing, dissolved oxygen in water will remain on more than 4ml/L, wait for put seedling.
Second step, Plagiognathops microlepis fry kind is thrown in: stocking size 25/kg, breeding density is 3 every square metre.Seed puts into the saline solution dipping bath 5 minutes with 5% before cement culturing pool, then puts into cement culturing pool and propagates artificially.
3rd step, sturgeon seed is thrown in: select appearance not damaged, and without the sturgeon seed of deformity, seed size is 8-12 centimetre.Seed first uses the salt water dipping bath 5 minutes of 5% concentration before putting into cement culturing pool, after put into cement culturing pool and propagate artificially.Breeding density is 30 every square metre.
4th step, sturgeon seed greenhouse cultivation process: seed opens inlet valve after putting into immediately, flow of inlet water controls at 3 tons per hour, and within 24 hours, uninterruptedly supply water, water temperature requires lower than less than 28 degrees Celsius.After seed enters pond, select crude protein 42% expanded heavy property feed manually throw something and feed, throw something and feed every day 4 times, each feeding volume is 3% of fish body weight.Every day adopts the mode of manual operation soil pick-up pump to carry out soil pick-up at the bottom of pond to culturing pool, and soil pick-up standard is without ight soil and residual bait at the bottom of pond.
5th step, sturgeon carries out marketable fish cultivation at reservoir deep water mesh cage: when sturgeon seed cultivates 150-200 gram in greenhouse cement culturing pool, just transfer them in reservoir deep water mesh cage and carry out marketable fish fattening stage.Cages in reservoir culturing area will be selected in water quality good, the depth of water 8 meters, should have miniflow, wind sheltering, the large reservoir water surface that faces south simultaneously.Net cage arranges specification at 5 meters * 5 meters * 5 meters, and web pre fetching is polyethylene structure, and surrounding mesh size is at 2-2.5CM, and bottom mesh is 0.1-0.2CM.Greenhouse sturgeon first 15 days in transfer, need be immersed in water by net cage, periphtic algae, in case abraded by polythene net after sturgeon network access case.The juvenile fish that the sturgeon of putting in each deep water mesh cage will select size basically identical, 30 juvenile fish put into by every square of net cage.
7th step, will carry out the morning, noon and afternoon every day and respectively throw something and feed once, feed of throwing something and feeding select crude protein be 40% expanded heavy property feed, each feeding volume is 2% of fish body weight in case, and simultaneously feeding volume also needs to adjust feeding volume in time according to the situation of ingesting of weather water temperature and fish.Sturgeon to enter after net cage every case quicklime 2 kilograms every 15 days, and by casing and the nearby waters of splashing after quicklime water, every day 1 time, for three days on end, carry out disinfection diseases prevention.Adhere to that the morning, noon and afternoon patrol case inspection, finding that there is dead fish will pull out in time, and this breeding process one is until marketable fish listing.
After six months, sturgeon can catch 3320 jin, and Plagiognathops microlepis fish can catch 74 jin.
The present invention is residual bait and silver xenocypris fish excreta in the Plagiognathops microlepis fish cleaning pond utilizing cover to support, and can greatly shorten every day and uses the time 2 h of soil pick-up pump, thus reduce labor cost and save electric energy; Meanwhile, Plagiognathops microlepis fish also can clear up a large amount of mosses that net cage adheres to, and keep current unimpeded, prevent the sturgeon anoxic cultivated, reduce the lethality of sturgeon, the survival rate of sturgeon can reach 97%.Only there is seed cost in the aquaculture cost of Plagiognathops microlepis, thus can improve the economic benefit of sturgeon breeding.
Embodiment 2: substantially the same manner as Example 1, difference is:
The stocking size 35/kg of Plagiognathops microlepis fry kind, breeding density is 5 every square metre, and seed puts into the saline solution dipping bath 10 minutes with 5% before cement culturing pool.Sturgeon seed first uses the salt water dipping bath 10 minutes of 5% concentration before putting into cement culturing pool.Breeding density is 40 every square metre.Seed opens inlet valve after putting into immediately, and flow of inlet water controls at 5 tons per hour.After seed enters pond, select crude protein 45% expanded heavy property feed manually throw something and feed, throw something and feed every day 5 times, each feeding volume is 5% of fish body weight.Sturgeon is when reservoir deep water mesh cage carries out marketable fish cultivation, and the juvenile fish that the sturgeon of putting in each deep water mesh cage will select size basically identical, 35 juvenile fish put into by every square of net cage.The morning, noon and afternoon to be carried out every day respectively throw something and feed once, feed of throwing something and feeding select crude protein be 42% expanded heavy property feed, each feeding volume is 4% of fish body weight in case, and simultaneously feeding volume also needs to adjust feeding volume in time according to the situation of ingesting of weather water temperature and fish.Sturgeon to enter after net cage every case quicklime 3 kilograms every 20 days.
After six months, sturgeon can catch 3560 jin, and Plagiognathops microlepis fish can catch 115 kilograms.
After adopting the present embodiment, the survival rate of sturgeon can reach 98%.
Claims (5)
1. Plagiognathops microlepis fish and a sturgeon cover breeding method, it is characterized in that, the method comprises the steps:
The first step, cement culturing pool is disinfected: first in cement culturing pool, be filled to setting height place, requires inflow temperature less than 28 degrees Celsius; Then carry out culturing pool sterilization with potassium permanganate, potassium permanganate consumption is every cubic metre of water body 8-10 gram, disinfecting time 48 hours; All given out light by water body in culturing pool after sterilization, refill reservoir water to above-mentioned set At The Height, open aerator simultaneously and carry out aeration oxygen replenishing, dissolved oxygen in water will remain on more than 4ml/L, waits for and puts seedling;
Second step, Plagiognathops microlepis fry kind is thrown in: stocking size 25-35 bar/kg, and breeding density is every square metre of 3-5 bar; After put into cement culturing pool and propagate artificially; Plagiognathops microlepis fry kind terminates in annual input by the end of March;
3rd step, feeding and management: this one-phase before throwing in sturgeon seed after Plagiognathops microlepis fry kind is thrown in, do not need to carry out feedstuff feeding to Plagiognathops microlepis fish, but should before sturgeon is put in a suitable place to breed 5 days, separate in the surrounding polyethylene mesh sheet of food platform, in case Plagiognathops microlepis fish robs food to food platform, the size of the mesh of polyethylene mesh sheet should adjust according to fingerling growing state in good time;
4th step, sturgeon seed is thrown in: select appearance not damaged, and without the sturgeon seed of deformity, seed size is 8-12 centimetre; Seed first uses the salt water dipping bath 5-10 minute of 3%-5% concentration before putting into cement culturing pool, after put into cement culturing pool and propagate artificially; Breeding density is every square metre of 30-40 bar;
5th step, sturgeon seed greenhouse cultivation process: sturgeon seed opens inlet valve after putting into immediately, flow of inlet water controls at 3-5 ton per hour, and within 24 hours, uninterruptedly supply water, water temperature requires below 28 degrees Celsius; After sturgeon seed enters pond, select crude protein manually to throw something and feed at the expanded heavy property feed of 42%-45%, every day throws something and feeds 4-5 time, and each feeding volume is the 3%-5% of sturgeon fish body weight; Every day adopts the mode of manual operation soil pick-up pump to carry out soil pick-up at the bottom of pond to culturing pool, and soil pick-up standard is without ight soil and residual bait at the bottom of pond;
6th step, sturgeon carries out marketable fish cultivation at reservoir deep water mesh cage: when sturgeon seed cultivates 150-200 gram in greenhouse cement culturing pool, just transfer them in reservoir deep water mesh cage and carry out marketable fish fattening stage; Cages in reservoir culturing area will be selected in water quality good, the depth of water 8 meters, should have miniflow, wind sheltering, the large reservoir water surface that faces south simultaneously; The juvenile fish that the sturgeon of putting in each deep water mesh cage will select size basically identical, 30-35 bar juvenile fish put into by every square metre of net cage;
7th step, scientific feeding: the morning, noon and afternoon will be carried out every day and respectively throw something and feed once, feed of throwing something and feeding selects crude protein to be the expanded heavy property feed of 40%-42%, and each feeding volume is the 2%-4% of fish body weight in case, and feeding volume also needs to adjust feeding volume in time according to the situation of ingesting of weather water temperature and sturgeon simultaneously; Sturgeon to enter after net cage every case quicklime 2-3 kilogram every 15-20 days, and add water in quicklime and to splash after stirring in net cage body and nearby waters, every day 1 time, for three days on end, carry out disinfection diseases prevention; Adhere to that the morning, noon and afternoon patrol case inspection, finding that there is dead fish will pull out in time, repeats this step feeding patterns one until marketable fish listing.
2. a kind of Plagiognathops microlepis fish according to claim 1 and sturgeon cover breeding method, is characterized in that, in the first step, described cement culturing pool is length is 8-10 rice, width is 8-10 rice, be highly the square cement culturing pool of 1 meter; Described setting height is 0.8 meter.
3. a kind of Plagiognathops microlepis fish according to claim 1 and sturgeon cover breeding method, it is characterized in that, in second step, Plagiognathops microlepis fry kind puts into the saline solution dipping bath 5-10 minute with 5% before cement culturing pool.
4. a kind of Plagiognathops microlepis fish according to claim 1 and sturgeon cover breeding method, is characterized in that, in the 6th step, reservoir deep water mesh cage arranges specification at 5 meters * 5 meters * 5 meters, web pre fetching is polythene material, and surrounding mesh size is at 2-2.5cm, and bottom mesh is 0.1-0.2cm.
5. a kind of Plagiognathops microlepis fish according to claim 1 and sturgeon cover breeding method, it is characterized in that, in the 6th step, net cage, being transferred to reservoir deep water mesh cage first 15 days, need be immersed in water by greenhouse sturgeon.
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| CN105360036B (en) * | 2015-12-19 | 2017-11-07 | 重庆雄创建筑工程技术有限公司 | A kind of Plagiognathops microlepis set supports the cultural method of spiral shell |
| CN105706966A (en) * | 2016-01-19 | 2016-06-29 | 周天赐 | Artificial propagation method of distoechodon tumirostris |
| CN108812461A (en) * | 2018-07-16 | 2018-11-16 | 镇江水中仙渔业发展有限公司 | A kind of cultural method hybridizing mandarin fish |
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| CN102144589A (en) * | 2011-04-08 | 2011-08-10 | 中国水产科学研究院长江水产研究所 | Environment-friendly method for culturing fish by using net cages |
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