CN103181342A

CN103181342A - Ricefield eel culture method

Info

Publication number: CN103181342A
Application number: CN2011104430895A
Authority: CN
Inventors: 曹运山
Original assignee: Individual
Current assignee: Individual
Priority date: 2011-12-27
Filing date: 2011-12-27
Publication date: 2013-07-03

Abstract

The invention discloses a ricefield eel culture method. In two years when a young ricefield eel is cultured into an adult ricefield eel, a cement pit culture method is used in the first year, and a net cage reed culture method is used in the second year. Each young ricefield eel is caught in the wild with the weight of 60-90g, and the weight of each adult ricefield eel is 160-210g. The ricefield eel is cultured in a cement pit from May to September, is moved to be cultured in a net cage in February to March in the first year and is sold as the adult ricefield eel in November to December the next year. The cement pit consists of a plurality of small pits with the width of 4 meters, the depth of 0.9 meter and the length of 5-6 meters, a drainage sign and a water inlet sign are respectively arranged on one edge of a pool to form an opposite angle, a drainage pipe hole is provided with an escape-prevention net, and the pool wall is covered with one layer of plastic film. According to the ricefield eel culture method disclosed by the invention, the cement pit culture is carried out in the first year so as to bring convenience for observing the eating and moving situation of the ricefield eel, and acclimatization is better. The ricefield eel cultured in the cement pit has the advantages of proper size, good freshness and good oxygen dissolving performance, and only water needs to be supplemented in fixed time. If the young ricefield eel is successfully acclimatized in the cement pit, the young ricefield eel can quickly adapt and eat when being moved to the net cage, the growth period is prolonged, and the weight increment ratio is big.

Description

The cultural method of a kind of swamp eel

Technical field

The present invention relates to aquaculture field, relate in particular to the cultural method of a kind of swamp eel.

Background technology

Swamp eel has another name called yellow eel or Changyu, its fine and tender taste, and delicious flavour, spur is few, contains rich in protein, multiple dimension Niu Su and mineral matter, and swamp eel also has important medicinal, has tonifying Qi, enriches blood, effect such as anti-inflammatory, sterilization, dispeling wind and dehumidification.In one's favour day by day on the market at home and abroad at present, for little should asking.The swamp eel adaptive capacity is strong, and lower oxygen concentration resistance, hunger are convenient to transportation, and its cultural method is easy, and cost is low, the economic benefit height, and suitable family cultures on a small scale.In the five-year that National Information Center lists, namely comprise culture of swamp eel in 6 kinds big rising breed projects.Swamp eel changes former in above-mentioned two kinds of cultural methods, also has the swamp eel plastic tunnel not have native flowing water cultural method and swamp eel paddy field aquaculture.The swamp eel wild resource is limited, along with people's ox running water half improves, the demand of yellow eel is significantly risen, and wild fishing for is difficult to satisfy towel field demand, and this needs propagate artificially on a large scale swamp eel.Because the yellow eel biological engineering does not finish as yet, the eel kind all is wild fishing for, wild yellow eel lives under the nature for a long time, be that the rich aquatic ox thing that swims is food with predation live fish, the shrimp that lives, tadpole, water earthworm mainly, artificial large-scale farming is difficult to reach these conditions, just need the domestication yellow eel to eat, artifical compound feed, yellow eel has just entered in the cistern and has raised, be difficult to conform, need slowly to adapt to for a long time to change, domestication yellow eel artifical compound feed also takes time, so little eel kind was difficult to reach the listing specification in 1 year, just must carries out culturing in 1 year and can go on the market.

Summary of the invention

Technical problem to be solved by this invention is to bring into play the advantage of the breed of swamp eel cement pit and swamp eel cage culture to greatest extent, and the cultural method of a kind of swamp eel is provided.

For solving the problems of the technologies described above, the present invention adopts technical scheme to be, the cultural method of a kind of swamp eel is cultured to two years that become eel from young meals, 1 year use cement pit cultural method, 1 year use net cage reed cultural method.Wherein, described young meals are wild fishing for, and weight is 60～90 gram/bars, and described one-tenth eel is 160～210 gram/bars.Wherein bring into use cement pit to culture annual 5～September, change cage culture 1 year 2～March over to, become the eel listing 1 year 11～December.Wherein, described cement pit is several wide 4 meters, dark 0.9 meter, the Xiao Chi of long 5-6 rice, and one side that draining symbol and water inlet symbol respectively are located at the pond forms the diagonal angle, and the draining mouth of pipe is provided with anti-ly escapes net, need cover with one deck plastic foil on the pool wall.Wherein, the long 5m of described net cage, wide 4m, high 1m, its above water are 40cm, and underwater portion is 60cm, and net matter will be got well, and mesh is close, and the net bar is critical, and broken and swamp eel is run away with the waterproof damaged by rats, net cage is arranged in the above pond of depth of water 0.8m.For wild eel kind of fishing for, the general domestication time is long, be difficult to reach the specification of commodity yellow eel in 1 year, must carry out culturing in 1 year and can go on the market, if continued in 1 year to culture with cement pit, the cage culture that is far from of yellow eel weightening finish ratio is big, so 1 year cultures with cement pit, 1 year is a kind of extraordinary aquaculture model with cage culture.

Beneficial effect of the present invention: 1, cultured with cement pit in 1 year, be convenient to observe swamp eel food, movable quiet condition, tame relatively good, all more clearly for the various situations of yellow eel, move into, shift out all more convenient.2, cement pit is cultured into little greatly, enters that net cage can reduce cost significantly because the cage culture water surface is big in 1 year, the depth of water, and freshness is good, and dissolved oxygen is good, does not need as cement pit carry out the water circulation every day, only needs regular moisturizing just.3, the eel kind is tamed in cement pit successfully, moves into net cage and just can adapt to, take food at once.Growth cycle lengthens greatly, and the weightening finish ratio is big.

Embodiment

According to following embodiment, the present invention may be better understood.Yet, those skilled in the art will readily understand that embodiment is described only to be used for explanation the present invention, and should also can not limit the present invention described in detail in claims.

Embodiment 1: one, cement pit are cultured

At first dig yellow eel Chi Gou; 4 meters of furrow widths; dark 0.9 meter; then with brick go out wide 4 meters; dark 0.7 meter long pond, after the drainpipe of 80 millimeters of diameters was gone up in laying at the bottom of the pond, the centre was built into Xiao Chi with brick by 5-6 rice more at interval; the draining mouth of pipe is provided with the anti-net of escaping; on the pond and have the intake pool of 50 millimeters of diameters, drainpipe and water inlet pipe respectively to establish on one side, discharge outlet and several formation of water inlet diagonal angle; favourable water circulation; after building up, the pond also wants on the pool wall at the plastic foil of coveing with 12 thickness of one deck, the anti-swamp eel scratch of the effect of plastic foil, and yellow eel does not have scale on one's body; has only the mucus protection; cement pit is very coarse, yellow eel scratch on the one, just cattle disease death easily; coveing with plastic foil just well addresses this problem; yellow eel pond towel also to do one wide 1.5 meters, long 2.5 meters hollow pipe basket, basket float over water and on; plantation spray ox or weter hyacinth in the basket, yellow eel just perches on the root of spray ox.The making of feeding hack, feeding platform, feeding tray is 80 centimeters of K with keeping core barrel, wide 30 centimeters basket, basket also to float over water and on, under a round bamboo basket and 15 centimeters locate to hang 200 unidimensional purpose net yellow eels and eat surplus residue and just drop on online face, be convenient to cleaning.Culturing just can sterilize after build up in the pond puts the eel seedling in a suitable place to breed, puts the eel seedling one 5～September in a suitable place to breed, and eel seedling body weight is 60～90 gram/bars, and every square metre of breed amount is 2～2.5 kilograms.With 5% permanganic acid solution sterilization, screening the mountain disease, hindering eel, separately putting in a suitable place to breed by size then before putting in a suitable place to breed, can take advantage of for a short time yellow eel greatly, the deprivation of food big eel can be eaten up little yellow eel.Tame and docile food.Buffalo zooplanktons such as the long-term ox of yellow eel living fish in the open air alive, shrimp alive, tadpole; be difficult for eating artificial batch; just must rub with earthworm, fly maggot, fish that yellow eel love is eaten and mix batch water food calling; early stage, most of little of food calling bait of using was used manufactured feed; look yellow eel feed situation, progressively carry out the transition to portion's manufactured feed.Can be increased to water level 55 centimeters winter, and in the white overlay insulation of loam cake upper strata, yellow eel pond, allow yellow eel survive the winter smoothly.

Two, cage culture

At 2.5 meters networking of pond depth of water case, yellow eel has been supported some months temporarily in cement pit, and intact has adapted to people's breeding environment, has also adapted to, and manufactured feed is to the. year 3～April about, minimum temperature is 15.C is above just can to have moved into net cage, at this moment, the weight of yellow eel is 80～100g/ bar, the breed amount of the every side's rice of net cage is 3～3.5 kilograms, the quantitative feeding yellow eel, and every first quarter moon adds new water in the pond, one is about 30% of pond water for quantity of exchanged water, through culturing the 6-7 month, yellow eel just can go on the market in net cage, and the yellow eel of this moment just can reach 160～210 grams.Swamp eel is cultured stage by stage, 1 year 25 centimeters～30 centimeters of storage pond, holding pond depth of water in cement pit, carry out the water microcirculation every day, and it is convenient to change water, bait throwing in is arranged, yellow eel has the food situation to be convenient to observe, and can in time find disease eel, dead eel, can in time clear up residual bait, guarantee water quality, just easily caught yellow eel as long as drainpipe extracted discharge water in 1 year, this advantage be net cage support temporarily possess for a short time.Cage culture in 1 year, after the breed in 1 year, yellow eel conforms, eats artifical compound feed, easily management, the pond middle water level is dark, and the water freshness is good.Be more conducive to yellow eel growth and add the culture-cycle and lengthen greatly, every two weeks just need change water 30%, manages into little, intensity, manually all declines to a great extent than plastics membrane cisterna, so such pattern is brought favorable economic benefit to the raiser.

Claims

1. the cultural method of a swamp eel is cultured to two years that become eel from young meals, 1 year use cement pit cultural method, 1 year use net cage reed cultural method.Wherein, described young meals are wild fishing for, weight is 60～90 gram/bars, described one-tenth eel is 160～210 gram/bars, wherein bring into use cement pit to culture annual 5～September, change cage culture 1 year 2～March over to, become the eel listing 1 year 11～December, wherein, described cement pit is that several are wide 4 meters, dark 0.9 meter, the Xiao Chi of long 5-6 rice, one side that draining symbol and water inlet symbol respectively are located at the pond forms the diagonal angle, the draining mouth of pipe is provided with the anti-net of escaping, need cover with one deck plastic foil on the pool wall, wherein, the long 5m of described net cage, wide 4m, high 1m, its above water is 40cm, underwater portion is 60cm, and net matter will be got well, and mesh is close, the net bar is critical, broken and swamp eel is run away with the waterproof damaged by rats, net cage is arranged in the above pond of depth of water 0.8m, for wild eel kind of fishing for, the general domestication time is long, be difficult to reach the specification of commodity yellow eel in 1 year, must carry out culturing in 1 year and can go on the market, culture with cement pit if continued in 1 year, the cage culture that is far from of yellow eel weightening finish ratio is big, so 1 year was a kind of extraordinary aquaculture model with cage culture with the cement pit breed in 1 year.