CN103004666B - Breeding method for intermediate breeding of Anguilla marmorata fries - Google Patents
Breeding method for intermediate breeding of Anguilla marmorata fries Download PDFInfo
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- CN103004666B CN103004666B CN201210584683.0A CN201210584683A CN103004666B CN 103004666 B CN103004666 B CN 103004666B CN 201210584683 A CN201210584683 A CN 201210584683A CN 103004666 B CN103004666 B CN 103004666B
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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
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Abstract
The invention provides a breeding method for intermediate breeding of Anguilla marmorata fries. The breeding method comprises the steps of intermediately breeding the Anguilla marmorata fries in a cement breeding pond in the early stage and breeding the Anguilla marmorata fries in an earthen pond in the later stage. A net box and water flow boosters are arranged in the process of intermediately breeding the Anguilla marmorata fries in the cement breeding pond in the early stage, and the Anguilla marmorata fries are bred in the net box, so that the metabolites of the Anguilla marmorata fries can be conveniently filtered and deposited, the survival environment is optimized, and the breeding survival rate is increased; the four water flow boosters are arranged at the four corners of the cement breeding pond, so that water flow circulates anticlockwise, a flowing water environment is created for the Anguilla marmorata fries, Anguilla marmorata can frequently move in the flowing water environment, the bait intake speed and the growth speed of the Anguilla marmorata are increased, and the survival environment of the Anguilla marmorata is optimized; the Anguilla marmorata fries are bred for 1-2 months in the cement breeding pond and fed with blood worms in the early stage and eel powder 7 days before leaving from the pond, after the Anguilla marmorata fries are fed with the eel powder, the Anguilla marmorata fries reaching 1 g per fry are transferred into a half mu (1 mu is 1/6 of acre) of the earthen pond for later breeding of the Anguilla marmorata fries, and the unqualified Anguilla marmorata fries are still concentrated in the cement breeding pond and continue to be fed with the blood worms; and during the process of breeding the Anguilla marmorata fries in the earthen pond, the Anguilla marmorata fries are mainly fed with the eel powder in the early stage and occasionally fed with the blood worms, all the Anguilla marmorata fries reaching 5 g per fry are fed with the eel powder, and the Anguilla marmorata fries reaching 10 g per fry are transferred into an Anguilla marmorata growing pond for breeding.
Description
[technical field]
The present invention relates to the cultivation of colored eel seed, especially a kind of cultural method spending eel seed mark slightly to cultivate.
[background technology]
Flower eel (Anguilla marmorata; Marbled eel) be the one of Chordata, Vertebrate, Osteichthyes, Actinopterygii, common eel catalogue, Anguilliforme, Anguillidae, Anguilla, also known as perch eel; Maximum individuality can reach 35 kilograms, the eel-like eel of the bodily form, and kiss circle is blunt, and interorbital space is wide flat, and be a bit larger tham kiss long, lip pleat is generous; Squama arrangement is basket shape squama group, and the orthogonal intersection of squama group is buried subcutaneous; Side line meta, lateral wire hole is obvious; Median fin interconnects, and dorsal fin is low and grow, and initial point and anal fin initial point spacing are greater than long; 100 ~ 110 pieces, vertebrae, body taupe, outside of belly white, tool cloud form decorative pattern on body and fin, and have grey black spot of uniform size; Dorsal fin and anal fin rear part edge black.
Flower eel distributes in Anguilla the most a kind of in the world, and north, to Korea S's Jizhou Island, to the east of Ogasawara Islands, reaches the Marguesas Islands of the South Pacific Ocean in the south, to the Natal of East Coast of Africa; In China, in each rivers water system in the Qiantang River to Hainan Province, there is distribution.Flower eel natural disposition is peculiar, and it is for falling river property straddling fish stocks, egg reproduction in ocean, and fry enters in the fresh water such as rivers, reservoir and grows up; Usually happiness inhabits coastal estuary region, also traces back perch in intermountain trench; Hide its daytime in crack of stone or soil pit, night is out movable; Body is strong and effectively, disposition is more violent; It is many with animality foodstuff, is often main foodstuff with fish and invertebrate such as small fish and shrimp, shellfish, crab and worm etc.
According to the study, flower eel has very high economic worth, and not only meat is good for it, delicious flavour, flower eel amino acid reaches 18 kinds, and lipid is based on triglyceride, inorganic elements, EPA, DHA content are high, wherein DHA > EPA, and nutritive value is better than Cuscuta japonicoa and European eel.At present, flower eel seed rearing mode many employings cement pit running water mode or native pool cultivated pattern, cultivation density is low, and cultivation survival rate is low, and water consumption is large, and native pool cultivated pattern easily causes colored eel to run away; So flower eel fanning economics is not high mainly embody a concentrated reflection of the thick breeding phase of seed mark, cause this high nutrition of colored eel, the product of high economic worth never forms the cultivation market of considerable scale.
[summary of the invention]
The present invention overcomes the deficiency of the thick breeding phase technology of existing colored eel seed mark, according to the life habit of flower eel, a kind of flower eel seed mark that improves is provided slightly to cultivate density, improve cultivating survival rate and flower eel seed growth rate, the cultural method that the colored eel seed mark reducing flower eel seed rearing cost is slightly cultivated.
For reaching above-mentioned improving eyesight, the technical scheme of employing is as follows:
The cultural method spending eel seed mark slightly to cultivate, comprises the following steps:
A), build cement culturing pool, building an area is 10m
2the rectangle cement culturing pool of size, cement culturing pool is long × wide is 4m × 3m, the degree of depth at least more than the 1.2m of cement culturing pool, and cement culturing pool bottom center is a little less than surrounding, and culturing pool bottom center is provided with a discharge outlet, and discharge outlet is stamped a steel wire;
B), net cage makes, utilize pvc pipe make four limits than cement culturing pool four limits respectively short 40cm and bottom surface than the framework of height 10cm at the bottom of pond, base of frame adopts many pvc pipes to prop up, surrounding and the bottom of filter being wrapped up framework form a net cage, net cage height is more than 1.2m, net cage upper frame is long × wide is 3.2m × 2.2m, cell inner diameter makes flower eel not escape from, can not overstockedly cause, flowing water or blowdown inconvenience, and mesh is overstocked, screen cloth is easily made easily to adhere to dirt, blocking mesh, the framework that net cage top pvc pipe is made is propped up, net cage is put into cement culturing pool, net cage does not contact surrounding and the bottom of cement culturing pool, the pool wall of net cage and cement culturing pool reserves convenient lower pond, the space brush net of 40cm, flushing operation, net cage makes flower eel have the growing environment of individual relative clean, departs from dirt at the bottom of pond, avoids flower eel seed in dirt, to produce disease for a long time, and facilitates the work of cement pit increase the DO,
C), a current boost motor is placed respectively in the corner of cement culturing pool, select long 60cm and the pvc pipe of internal diameter 5cm, and remove 1/3 part of pvc pipe Single port cross section and form a tilt port, select the tilt port of four pvc pipes downward, tiltedly extend into net cage with 45 DEG C of angles respectively, the other end of pvc pipe is individually fixed in the interface of the current boost motor of the corner of cement culturing pool, and build respectively in cement culturing pool corner establish with current boost motor one fixing and long, wide, height is the cement block of 20cm × 20m × 5cm, be convenient to overall fixing current boost motor, and open an osculum at each pvc pipe near cement block end, insert the wireway be communicated with cement culturing pool outer air, during ventilation, the current boost motor of cement culturing pool corner is sprayed water along counter clockwise direction by pvc pipe, current in cement culturing pool are made to form left-hand circular, air-flow is upwards emerged along pvc pipe by wireway simultaneously, current form flow effect along airflow direction, build a kind of flowing water environment to flower eel seed, promote that flower eelfare is moved, accelerate digestion rate and take the photograph bait speed, and the discharge outlet facilitating dirt to enter cement culturing pool central authorities when changing water concentrates discharge,
D), in the net cage inside of cement culturing pool be also provided with multiple inflating air stone for oxygenation, inflating air stone is communicated with fan blower by pipeline, and inflating air stone is as the criterion with every square metre of water surface gas stone;
E), the cleaning of red worm, put 3 wide 60cm at base, indoor, the tank of long 400cm, make several wide 50cm, the rectangle wooden frame of long 80cm, 60 object screen cloths are tightened to be fixed on rectangle wooden frame form a screen frame; When cleaning red worm, red worm is put into tank, tank one end flowing water, and the screen frame made is pressed in above red worm, allow red worm climb work, when red worm climbs out of under screen cloth, the squeezing action due to mesh can be got rid of in body, a large amount of dirt of body surface; The red worm that lives will be climbed be placed in next tank and continue to support temporarily, climb work, and so climb the red worm after living for 3 times later and can to throw something and feed eel seed; In addition, red worm supports period temporarily at tank, and often roll red worm, broken up by red for poly-heap worm, supports temporarily red worm and to turn over every day and wash 3 times, avoids red worm poly-heap and cause hypoxia death for a long time; The sea water immersion that before throwing something and feeding, it is 8 ° that red worm needs through salinity is sterilized half an hour;
F), put seedling before, the water level of cement culturing pool is adjusted to 40cm, and in net cage, arrange the fixing material-feeding platform of about half square metre, putting colored eel seed size in a suitable place to breed is 2000 tails/jin, and breeding density is 3000 tails/m
2flower eel seed;
G), cement culturing pool throws something and feeds, and within the 3rd day, starts red worm of throwing something and feeding after throwing in seed, and red worm needs to climb through red worm rinse bath to live more than 3 times, sterilizes before throwing something and feeding with 8 ° of sea water immersion half an hours; First 15 days, in order to promote flower eel seed phase nutrient accumulation, to throw something and feed every day red worm 4 times, every minor tick 6 hours, namely 6:00,12:00,18:00,24:00 are respectively once, and red worm is is directly thrown something and fed on fixing material-feeding platform, and each feeding volume is eaten up with half an hour and is as the criterion, training flower eel seed concentrates material feeding, is dragged for away by red for residue worm after one hour; Flower eel seed threw something and fed red worm after 15 days, and the survival pressure caused along with the growth of specification in order to avoid flower eel seed is urgent, and again because excessive throwing something and feeding causes disease to occur, be reduced to the red worm 3 times of throwing something and feeding every day, namely 6:00,12:00 and 18:00 of every day are respectively once;
H), the daily water quality management of cement culturing pool, when cement culturing pool puts seedling early stage, water level is 40cm, later stage slowly increases to 60cm, cement culturing pool water level must lower than net cage top 50cm, prevent flower eel seed from escaping from net cage, flower eel seed, in flowing water situation, easily climbs net, if water level and net cage top difference are less than 50cm, part flower eel seed can be made to climb out of net cage; Brush net obtains situation according to the actual adhesion fouling product of net and determines, and the net cage in 3 days swabbing mud culturing pools once, often hugely changes water once, and brush net cage operated before changing water; When changing water, push the discharge outlet of cement culturing pool aside, release whole water, and rinse at the bottom of cement culturing pool surrounding and pond with hydraulic giant, add water to rapidly original water level after having changed water, flower eel seed temperature of exposure and dry was no more than 10 minutes;
I), build Tu Chi, native pool area is 0.5 ~ 1 mu and is as the criterion, and puts 1 1.5KW aerator in the middle of native pond, soil arranges fixing bait feeding platform in pond, it is dark that soil pool water level is at least 100cm, and breeding density is 60,000 tails/mu, and before putting colored eel seed in a suitable place to breed, Tu Chi needs sterilization of cleaning up the pond in advance;
J), turn material and turn pond and prepare, when flower eel seed size reaches 1g/ tail, flower eel seed can be prepared to bury pond from the transfer of cement culturing pool, turn pond and within first 7 days, start bait conversion, throw something and feed and start to transform (eel powder is that Quanxing, Shuande, Foshan City aquatic feeds Co., Ltd produces) to eel powder, the nutrient component of eel powder is protein content >=45%, fiber content≤1%, fat content >=4%, content of ashes≤18%, moisture≤10%, bait transforms first 5 days, every morning, 6:00 mono-meal was thrown something and fed red worm, noon 12:00 and afternoon 18:00 to throw something and feed eel powder, eel powder becomes thick shape to throw something and feed with the ratio water transfer of 1: 1, 3 meal are complete after 5 days feeds eel powder, and namely 6:00,12:00 and 18:00 of every day feed eel powder entirely, and the eel powder that continues for latter two days to throw something and feed is stablized, after stablizing 2 days, carry out spending the sieve of eel seed to get, colored eel seed specification being reached 1g/ tail proceeds to Tu Chi, and the colored eel seed not to specification continues to stay in cement pit red worm of throwing something and feeding, mode of more than throwing something and feeding all sets up fixing material-feeding platform in net cage, and fixing material-feeding platform is is directly thrown something and fed, and half an hour is eaten up and is as the criterion, and skims residual bait after one hour, needed before putting into native pond turn material, avoid seed enter Tu Chi do not ingest later eel powder situation occur,
K), Tu Chi throws something and feeds, after flower eel seed is transferred to Tu Chi, fix in native pond on bait feeding platform and directly throw something and feed, before specification reaches 5g/ tail, throw something and feed every day 3 times, namely 6:00,18:00 of every day throw something and feed eel powder, and eel powder becomes thick shape to throw something and feed with the ratio water transfer of 1: 1,12:00 throws something and feeds red worm, to eat up at every turn be as the criterion with bait on fixing bait feeding platform in half an hour; Specification reaches 5g/ tail and all to throw something and feed eel powder later, and reduces number of times to day 2 meal of throwing something and feeding, and namely 6:00,18:00 of every day throw something and feed eel powder, and eel powder becomes thick shape to throw something and feed with the ratio water transfer of 1: 1;
1), native pool cultivated period, native pool water level need higher than native pool outer water position, and daily water quality management is, changes water 20% every day, and injects new water to former water level, and puts into 3 cun little pumps one at Tu Chizhong, draws water and water outlet in former pond, forms water flow effects;
M), when flower eel seed reaches 10g/ tail, growing pond cultivation can be proceeded to.
A kind of cultural method spending eel seed mark slightly to cultivate as above, in step h) in also comprise: Tu Chi Chi Po imbeds and cover scrim, the ceramic tile fence of native pond surrounding 50em, runs away in order to prevent flower eel seed.
Advantage of the present invention:
The cultural method that the present invention spends eel seed mark slightly to cultivate, be divided into cement culturing pool mark extensive cultivation in early stage to grow with later stage soil pool cultivated, sterilization of cleaning up the pond in advance before putting seed in a suitable place to breed, its object is to degerming removing the evil; The extensive cultivation of cement culturing pool mark is provided with net cage and current boost motor in growing, and by cage culture, facilitates the metabolite of filtering-depositing flower eel seed, optimizes living environment, improve cultivation survival rate; Four the current boost motors arranged in cement culturing pool corner, make current become left-hand circular, for flower eel seed creates flowing water environment, flower eel is often moved about, promotes that it digests.Improve it and take the photograph bait speed and growth rate, and current boost motor makes the discharge outlet of cement dirt in the middle of cement pit concentrate, and facilitates blowdown, for flower eel seed creates flowing water environment, flower eel is often moved about, improves it and take the photograph bait speed and growth rate, reach the living environment optimizing flower eel;
The pool wall of net cage and cement culturing pool reserves convenient lower pond, the space brush net of 40cm, flushing operation, net cage makes flower eel have the growing environment of individual relative clean, departs from dirt at the bottom of pond, avoid flower eel seed in dirt, to produce disease for a long time, and facilitate the work of cement pit increase the DO.
The red worm of throwing something and feeding all passes through and climbs process of living, when red worm climbs alive, when red worm climbs out of under screen cloth, squeezing action due to mesh can be got rid of in body, a large amount of dirt of body surface, and without repeatedly climbing the red worm living, sterilize, because the impact of its former growing environment, body is interior, body surface all has a lot of dirt and bacterium, directly throw something and feed in flower eel seed, easily give rise to diseases, through repeatedly climbing the red worm living, clean, the dirt in body surface, body can be discharged, sterilization more can effectively be killed except bacterium after soaking, and avoids directly throwing something and feeding, causes the various disease of colored eel seed.
Controlling cement culturing pool water level must, lower than net cage top 50cm, be that flower eel seed, in flowing water situation, easily climbs net in order to prevent flower eel seed from escaping from net cage, if water level and net cage top difference are less than 50cm, part flower eel seed can be made to climb out of net cage; Net cage in 3 days swabbing mud culturing pools once, often hugely changes water once, when changing water, push the discharge outlet of cement culturing pool aside, release whole water, and rinse at the bottom of cement culturing pool surrounding and pond with hydraulic giant, after having changed water, add water to rapidly original water level, which changes water can make dirt in water all discharge, introduce completely fresh water quality, net cage and cement pit are cleaned clean, and energy 100% changes water, be conducive to the growth of flower eel, not easily break out disease.
Flower eel seed is thrown something and fed in process at Tu Chi, takes the photograph the bait time to be all half an hour, being take the photograph bait to promote flower eel seed to concentrate, avoiding, because excessive reason of ingesting, cause the generation of gastrointestinal disease, and residual bait easily ruining water quality; Red worm of throwing something and feeding during flower eel seed cement culturing pool is main, to strengthen colored eel nutrient accumulation, ensure its growth required for necessary nutrition, promoting its growth rate, during native pond, be aided with red worm before specification 5g/ tail based on eel powder, is also in order to ensure needed for it must the absorption of nutrition, ensure its growth rate, after specification reaches 5g/ tail, eel powder of all throwing something and feeding, can not affect its normal growth rate; Throw something and feed eel powder compared with red worm of throwing something and feeding, under the prerequisite not affecting colored eel normal growth, can production cost be greatly reduced.
The flower eel seed soil pond nurturing period, native pool water level higher than native pool outer water position, need be get into the cave because flower eel seed likes stream against the current, avoids, because of the Reason Of Leakange of export-oriented inside, pond, pond, causing colored eel seed to get into the cave and runing away; Meanwhile, Tu Chi Chi Po imbeds and cover scrim, the ceramic tile fence of native pond surrounding 50cm, and also can prevent flower eel seed from runing away, the disembarkation that period of raining especially causes is run away; In addition, during flower eel seed, harmful organisms is more, and paving is enclosed ceramic tile and also can effectively be prevented harmful organisms from entering Tu Chi, harm flower eel seed.
[Figure of description]
Fig. 1 is the framework of net cage in the present invention and the structural representation of current boost motor.
[embodiment]
The cultural method spending eel seed mark slightly to cultivate, comprises the following steps:
A), build cement culturing pool, building an area is 10m
2the rectangle cement culturing pool of size, cement culturing pool is long × wide is 4m × 3m, the degree of depth at least 1.2m of cement culturing pool, and cement culturing pool bottom center is a little less than surrounding, and culturing pool bottom center is provided with a discharge outlet, and discharge outlet is stamped a steel wire;
B), net cage makes, as shown in Figure 1, utilize pvc pipe make four limits than cement culturing pool four limits respectively short 40cm and bottom surface than the framework 1 of height 10cm at the bottom of pond, base of frame adopts many pvc pipes to prop up, surrounding and the bottom of filter being wrapped up framework form a net cage, net cage height is more than 1.2m, net cage upper frame is long × wide is 3.2m × 2.2m, cell inner diameter makes flower eel not escape from, can not overstockedly cause, flowing water or blowdown inconvenience, and mesh is overstocked, screen cloth is easily made easily to adhere to dirt, blocking mesh, the framework that net cage top pvc pipe is made is propped up, net cage is put into cement culturing pool, net cage does not contact surrounding and the bottom of cement culturing pool, the pool wall of net cage and cement culturing pool reserves convenient lower pond, the space brush net of 40cm, flushing operation, net cage system makes flower eel have the growing environment of individual relative clean, departs from dirt at the bottom of pond, avoids flower eel seed in dirt, to produce disease for a long time, and facilitates the work of cement pit increase the DO,
C), a current boost motor is placed respectively in the corner of cement culturing pool, continue as shown in Figure 1, select long 60cm and the pvc pipe of internal diameter 5cm, and remove 1/3 part of pvc pipe Single port cross section and form a tilt port, select the tilt port of four pvc pipes downward, tiltedly extend into net cage with 45 DEG C of angles respectively, the other end of pvc pipe is individually fixed in the interface of the current boost motor 2 of the corner of cement culturing pool, and build respectively in cement culturing pool corner establish with current boost motor one fixing and long, wide, height is the cement block 3 of 20cm × 20m × 5cm, be convenient to overall fixing current boost motor, and open an osculum at each pvc pipe near cement block end, insert the wireway 4 be communicated with cement culturing pool outer air, during ventilation, the current boost motor 2 of cement culturing pool corner is sprayed water along counter clockwise direction by pvc pipe, current in cement culturing pool are made to form left-hand circular, air-flow is upwards emerged along pvc pipe by wireway simultaneously, current form flow effect along airflow direction, build a kind of flowing water environment to flower eel seed, promote that flower eelfare is moved, accelerate digestion rate and take the photograph bait speed, and the discharge outlet facilitating dirt to enter cement culturing pool central authorities when changing water concentrates discharge,
D), in the net cage inside of cement culturing pool be also provided with multiple inflating air stone for oxygenation, inflating air stone is communicated with fan blower by pipeline, and inflating air stone is as the criterion with every square metre of water surface gas stone;
E), the cleaning of red worm, put 3 wide 60cm at base, indoor, the tank of long 400cm, make several wide 50cm, the rectangle wooden frame of long 80cm, 60 object screen cloths are tightened to be fixed on rectangle wooden frame form a screen frame; When cleaning red worm, red worm is put into tank, tank one end flowing water, and the screen frame made is pressed in above red worm, allow red worm climb work, the dirt that when red worm climbs out of under screen cloth, the squeezing action due to mesh can be got rid of in body, body surface is a large amount of; The red worm that lives will be climbed be placed in next tank and continue to support temporarily, climb work, and so climb the red worm after living for 3 times later and can to throw something and feed eel seed; In addition, red worm supports period temporarily at tank, and often roll red worm, broken up by red for poly-heap worm, supports temporarily red worm and to turn over every day and wash 3 times, avoids red worm poly-heap and cause hypoxia death for a long time; The sea water immersion that before throwing something and feeding, it is 8 ° that red worm needs through salinity is sterilized half an hour; Without repeatedly climbing the red worm living, sterilize, because the impact of its former growing environment, body is interior, body surface all has a lot of dirt and bacterium, directly throw something and feed in flower eel seed, easily give rise to diseases, through repeatedly climbing the red worm living, clean, the dirt in body surface, body can be discharged, sterilization more can effectively be killed except bacterium after soaking, and avoids directly throwing something and feeding, causes the various disease of colored eel seed;
F), put seedling before, the water level of cement culturing pool is adjusted to 40cm, and in net cage, arrange the fixing material-feeding platform of about half square metre, putting colored eel seed size in a suitable place to breed is 2000 tails/jin, and breeding density is 3000 tails/m
2flower eel seed;
G), cement culturing pool throws something and feeds, and within the 3rd day, starts red worm of throwing something and feeding after throwing in seed, and red worm needs to climb through red worm rinse bath to live more than 3 times, sterilizes before throwing something and feeding with 8 ° of sea water immersion half an hours; First 15 days, in order to promote flower eel seed phase nutrient accumulation, to throw something and feed every day red worm 4 times, every minor tick 6 hours, namely 6:00,12:00,18:00,24:00 are respectively once, and red worm is is directly thrown something and fed on fixing material-feeding platform, and each feeding volume is eaten up with half an hour and is as the criterion, training flower eel seed concentrates material feeding, is dragged for away by red for residue worm after one hour; Flower eel seed threw something and fed red worm after 15 days, and the survival pressure caused along with the growth of specification in order to avoid flower eel seed is urgent, and again because excessive throwing something and feeding causes disease to occur, be reduced to the red worm 3 times of throwing something and feeding every day, namely 6:00,12:00 and 18:00 of every day are respectively once;
H), the daily water quality management of cement culturing pool, when cement culturing pool puts seedling early stage, water level is 40cm, later stage slowly increases to 60cm, cement culturing pool water level must lower than net cage top 50cm, prevent flower eel seed from escaping from net cage, flower eel seed, in flowing water situation, easily climbs net, if water level and net cage top difference are less than 50cm, part flower eel seed can be made to climb out of net cage; Brush net obtains situation according to the actual adhesion fouling product of net and determines, and the net cage in 3 days swabbing mud culturing pools once, often hugely changes water once, and brush net cage operated before changing water; When changing water, push the discharge outlet of cement culturing pool aside, release whole water, and rinse at the bottom of cement culturing pool surrounding and pond with hydraulic giant, add water to rapidly original water level after having changed water, flower eel seed temperature of exposure and dry was no more than 10 minutes; Which changes water can make dirt in water all discharge, and introduces completely fresh water quality, net cage and cement pit are cleaned clean, and energy 100% changes water, is conducive to the growth of flower eel, not easily breaks out disease;
I), build Tu Chi, native pool area is 0.5 mu and is as the criterion, and puts 1 1.5KW paddle aerator in the middle of native pond, soil arranges fixing bait feeding platform in pond, it is dark that soil pool water level is at least 100cm, and breeding density is 60,000 tails/mu, and before putting colored eel seed in a suitable place to breed, Tu Chi needs sterilization of cleaning up the pond in advance; Tu Chi Chi Po imbeds and cover scrim, the ceramic tile fence of soil pond surrounding 50cm, run away in order to prevent flower eel seed, the happiness of flower eel is flowed against the current, rain period easily disembarkation run away, screen cloth is set and ceramic tile fence can effectively prevent flower eel from escaping, and during flower eel seed, harmful organisms is more, paving is enclosed ceramic tile and also can effectively be prevented harmful organisms from entering Tu Chi, harm flower eel seed;
J), turn material and turn pond and prepare, when flower eel seed size reaches 1g/ tail, flower eel seed can be prepared to bury pond from the transfer of cement culturing pool, turn pond and within first 7 days, start bait conversion, throwing something and feeding, to eel powder conversion, (eel powder described in the present embodiment is that Quanxing, Shuande, Foshan City aquatic feeds Co., Ltd produces in beginning, directly can be bought by market channel, the eel powder below occurred is Quanxing, Shuande, Foshan City aquatic feeds Co., Ltd and produces, below repeat no longer one by one), the nutrient component of eel powder is protein content >=45%, fiber content≤1%, fat content >=4%, content of ashes≤18%, moisture≤10%, bait transforms first 5 days, and every morning, 6:00 mono-meal was thrown something and fed red worm, noon 12:00 and afternoon 18:00 to throw something and feed eel powder, eel powder becomes thick shape to throw something and feed with the ratio water transfer of 1: 1, 3 meal are complete after 5 days feeds eel powder, and namely 6:00,12:00 and 18:00 of every day feed eel powder entirely, and the eel powder that continues for latter two days to throw something and feed is stablized, after stablizing 2 days, carry out spending eel seed to sieve and get, colored eel seed specification being reached 1g/ tail proceeds to Tu Chi, and the colored eel seed not to specification continues to stay in cement pit red worm of throwing something and feeding, mode of more than throwing something and feeding all sets up fixing material-feeding platform in net cage, and fixing material-feeding platform is is directly thrown something and fed, and half an hour is eaten up and is as the criterion, and skims residual bait after one hour, needed before putting into native pond turn material, avoid seed enter Tu Chi do not ingest later eel powder situation occur,
K), Tu Chi throws something and feeds, after flower eel seed is transferred to Tu Chi, fix in native pond on bait feeding platform and directly throw something and feed, before specification reaches 5g/ tail, throw something and feed every day 3 times, namely 6:00,18:00 of every day throw something and feed eel powder, and eel powder becomes thick shape to throw something and feed with the ratio water transfer of 1: 1,12:00 throws something and feeds red worm, to eat up at every turn be as the criterion with bait on fixing bait feeding platform in half an hour; Specification reaches 5g/ tail and all to throw something and feed eel powder later, and reduces number of times to day 2 meal of throwing something and feeding, and namely 6:00,18:00 of every day throw something and feed eel powder, and eel powder becomes thick shape to throw something and feed with the ratio water transfer of 1: 1; Tu Chi throws something and feeds in process, takes the photograph the bait time to be all half an hour, is to take the photograph bait to promote flower eel seed to concentrate, and avoids, because excessive reason of ingesting, cause the generation of gastrointestinal disease, and residual bait easily ruining water quality; Red worm of throwing something and feeding during flower eel seed cement culturing pool is main, to strengthen colored eel nutrient accumulation, ensure its growth required for necessary nutrition, promoting its growth rate, during native pond, be aided with red worm before specification 5g/ tail based on eel powder, is also in order to ensure needed for it must the absorption of nutrition, ensure its growth rate, after specification reaches 5g/ tail, eel powder of all throwing something and feeding, can not affect its normal growth rate; Throw something and feed eel powder compared with red worm of throwing something and feeding, under the prerequisite not affecting colored eel normal growth, can production cost be greatly reduced;
L), native pool cultivated period, native pool water level need higher than native pool outer water position, and daily water quality management is, changes water 20% every day, and injects new water to former water level, and puts into 3 cun little pumps one at Tu Chizhong, draws water and water outlet in former pond, forms water flow effects; The flower eel seed soil pond nurturing period, native pool water level higher than native pool outer water position, need be that hole, happiness are flowed against the current because flower eel seed is easily drilled, avoids, because of the Reason Of Leakange of export-oriented inside, pond, pond, causing colored eel seed to get into the cave and runing away;
M), when flower eel seed reaches 10g/ tail, growing pond cultivation can be proceeded to.
Claims (2)
1. the cultural method spending eel seed mark slightly to cultivate, is characterized in that, comprise the following steps:
A), build cement culturing pool, building an area is 10m
2the rectangle cement culturing pool of size, cement culturing pool is long × wide is 4m × 3m, the degree of depth at least 1.2m of cement culturing pool, and cement culturing pool bottom center is a little less than surrounding, and culturing pool bottom center is provided with a discharge outlet, and discharge outlet is stamped a steel wire;
B), net cage makes, utilize pvc pipe make four limits than cement culturing pool four limits respectively short 40cm and bottom surface than the framework of height 10cm at the bottom of pond, base of frame adopts many pvc pipes to prop up, surrounding and the bottom of filter being wrapped up framework form a net cage, net cage height is more than 1.2m, net cage upper frame is long × wide is 3.2m × 2.2m, cell inner diameter makes flower eel not escape from, the framework that net cage top pvc pipe is made is propped up, net cage is put into cement culturing pool, net cage does not contact surrounding and the bottom of cement culturing pool;
C), a current boost motor is placed respectively in the corner of cement culturing pool, select long 60cm and the pvc pipe of internal diameter 5cm, and remove 1/3 part of pvc pipe Single port cross section and form a tilt port, select the tilt port of four pvc pipes downward, tiltedly extend into net cage with 45 DEG C of angles respectively, the other end of pvc pipe is individually fixed in the interface of the current boost motor of the corner of cement culturing pool, and build respectively in cement culturing pool corner establish with current boost motor one fixing and long, wide, height is the cement block of 20cm × 20m × 5cm, be convenient to overall fixing current boost motor, and open an osculum at each pvc pipe near cement block end, insert the wireway be communicated with cement culturing pool outer air, during ventilation, the current boost motor of cement culturing pool corner is sprayed water along counter clockwise direction by pvc pipe, current in cement culturing pool are made to form left-hand circular, air-flow is upwards emerged along pvc pipe by wireway simultaneously, current form flow effect along airflow direction, build a kind of flowing water environment to flower eel seed, promote that flower eelfare is moved, accelerate digestion rate and take the photograph bait speed, and the discharge outlet facilitating dirt to enter cement culturing pool central authorities when changing water concentrates discharge,
D), in the net cage inside of cement culturing pool be also provided with multiple inflating air stone for oxygenation, inflating air stone is communicated with fan blower by pipeline, and inflating air stone is as the criterion with every square metre of water surface gas stone;
E), the cleaning of red worm, put 3 wide 60cm at base, indoor, the tank of long 400cm, make several wide 50cm, the rectangle wooden frame of long 80cm, 60 object screen cloths are tightened to be fixed on rectangle wooden frame form a screen frame; When cleaning red worm, red worm is put into tank, tank one end flowing water, and the screen frame made is pressed in above red worm, allow red worm climb work, when red worm climbs out of under screen cloth, the squeezing action due to mesh can be got rid of in body, a large amount of dirt of body surface; The red worm that lives will be climbed be placed in next tank and continue to support temporarily, climb work, and so climb the red worm after living for 3 times later and can to throw something and feed eel seed; In addition, red worm supports period temporarily at tank, and often roll red worm, broken up by red for poly-heap worm, supports temporarily red worm and to turn over every day and wash 3 times, avoids red worm poly-heap and cause hypoxia death for a long time; The sea water immersion that before throwing something and feeding, it is 8 ° that red worm needs through salinity is sterilized half an hour;
F), put seedling before, the water level of cement culturing pool is adjusted to 40cm, and in net cage, arrange the fixing material-feeding platform of about half square metre, putting colored eel seed size in a suitable place to breed is 2000 tails/jin, and breeding density is 3000 tails/m
2flower eel seed;
G), cement culturing pool throws something and feeds, and within the 3rd day, starts red worm of throwing something and feeding after throwing in seed, and red worm needs to climb through red worm rinse bath to live more than 3 times, sterilizes before throwing something and feeding with 8 ° of sea water immersion half an hours; First 15 days, in order to promote flower eel seed phase nutrient accumulation, to throw something and feed every day red worm 4 times, every minor tick 6 hours, namely 6:00,12:00,18:00,24:00 are respectively once, and red worm is is directly thrown something and fed on fixing material-feeding platform, and each feeding volume is eaten up with half an hour and is as the criterion, training flower eel seed concentrates material feeding, is dragged for away by red for residue worm after one hour; Flower eel seed threw something and fed red worm after 15 days, the survival pressure caused along with the growth of specification in order to avoid flower eel seed is urgent, again because excessive throwing something and feeding causes disease to occur, be reduced to the red worm 3 times of throwing something and feeding every day, namely 6:00,12:00 and 18:00 of every day are respectively once;
H), the daily water quality management of cement culturing pool, when cement culturing pool puts seedling early stage, water level is 40cm, later stage slowly increases to 60cm, cement culturing pool water level must lower than net cage top 50cm, prevent flower eel seed from escaping from net cage, net cage in 3 days swabbing mud culturing pools once, often hugely changes water once, and brush net cage operated before changing water; When changing water, push the discharge outlet of cement culturing pool aside, release whole water, and rinse at the bottom of cement culturing pool surrounding and pond with hydraulic giant, add water to rapidly original water level after having changed water, flower eel seed temperature of exposure and dry was no more than 10 minutes;
I), build Tu Chi, native pool area is 0.5 ~ 1 mu and is as the criterion, and puts 1 1.5KW aerator in the middle of native pond, soil arranges fixing bait feeding platform in pond, it is dark that soil pool water level is at least 100cm, and breeding density is 60,000 tails/mu, and before putting colored eel seed in a suitable place to breed, Tu Chi needs sterilization of cleaning up the pond in advance;
J), turn material and turn pond and prepare, when flower eel seed size reaches 1g/ tail, flower eel seed can be prepared to bury pond from the transfer of cement culturing pool, turn pond and within first 7 days, start bait conversion, throw something and feed and start to transform to eel powder, the nutrient component of eel powder is protein content >=45%, fiber content≤1%, fat content >=4%, content of ashes≤18%, moisture≤10%; Bait transforms first 5 days, and every morning, 6:00 mono-meal was thrown something and fed red worm, noon 12:00 and afternoon 18:00 to throw something and feed eel powder, eel powder becomes thick shape to throw something and feed with the ratio water transfer of 1:1; 3 meal are complete after 5 days feeds eel powder, and namely 6:00,12:00 and 18:00 of every day feed eel powder entirely, and the eel powder that continues for latter two days to throw something and feed is stablized; After stablizing 2 days, carry out spending the sieve of eel seed to get, colored eel seed specification being reached 1g/ tail proceeds to Tu Chi, and the colored eel seed not to specification continues to stay in cement pit red worm of throwing something and feeding; Mode of more than throwing something and feeding all sets up fixing material-feeding platform in net cage, and fixing material-feeding platform is is directly thrown something and fed, and half an hour is eaten up and is as the criterion, and skims residual bait after one hour; Needed before putting into native pond turn material, avoid seed enter Tu Chi do not ingest later eel powder situation occur;
K), Tu Chi throws something and feeds, after flower eel seed is transferred to Tu Chi, fix in native pond on bait feeding platform and directly throw something and feed, before specification reaches 5g/ tail, throw something and feed every day 3 times, namely 6:00,18:00 of every day throw something and feed eel powder, and eel powder becomes thick shape to throw something and feed with the ratio water transfer of 1:1,12:00 throws something and feeds red worm, to eat up at every turn be as the criterion with bait on fixing bait feeding platform in half an hour; Specification reaches 5g/ tail and all to throw something and feed eel powder later, and reduces number of times to day 2 meal of throwing something and feeding, and namely 6:00,18:00 of every day throw something and feed eel powder, and eel powder becomes thick shape to throw something and feed with the ratio water transfer of 1:1;
1), native pool cultivated period, native pool water level need higher than native pool outer water position, and daily water quality management is: change water 20% every day, and injects new water to former water level, and puts into 3 cun little pumps one at Tu Chizhong, draws water and water outlet in former pond, forms water flow effects;
M), when flower eel seed reaches 10g/ tail, growing pond cultivation can be proceeded to.
2. a kind of cultural method spending eel seed mark slightly to cultivate according to claim 1, is characterized in that, in step h) in also comprise: Tu Chi Chi Po imbeds and cover scrim, the ceramic tile fence of native pond surrounding 50cm, runs away in order to prevent flower eel seed.
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