CN103004666A - 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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- CN103004666A CN103004666A CN2012105846830A CN201210584683A CN103004666A CN 103004666 A CN103004666 A CN 103004666A CN 2012105846830 A CN2012105846830 A CN 2012105846830A CN 201210584683 A CN201210584683 A CN 201210584683A CN 103004666 A CN103004666 A CN 103004666A
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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 flower eel seed, especially a kind of thick cultural method of cultivating of eel seed mark of spending.
[background technology]
Flower eel (Anguilla marmorata; Marbled eel) is a kind of of Chordata, Vertebrate, Osteichthyes, Actinopterygii, common eel catalogue, Anguilliforme, Anguillidae, Anguilla, claims again the perch eel; Maximum individuality can reach 35 kilograms, the eel-like eel of the bodily form, and the kiss circle is blunt, and interorbital space is wide flat, and it is long to be a bit larger tham kiss, and the lip pleat is generous; Squama is arranged and is basket shape squama group, and the orthogonal intersection of squama group is buried subcutaneous; The side line meta, lateral wire hole is obvious; Median fin interconnection, dorsal fin is low and grow, and initial point and anal fin initial point spacing are greater than long; 100～110 on vertebrae, the body taupe, outside of belly white, tool cloud form decorative pattern on body and the fin, and grey black spot of uniform size is arranged; Dorsal fin and anal fin rear part edge black.
The flower eel is to distribute in the Anguilla in the world the most a kind ofly, and north to the east of the Ogasawara Islands, reaches the Marguesas Islands of the South Pacific Ocean in the south, to the Natal of East Coast of Africa to Korea S's Jizhou Island; In China, in each rivers water system of the Qiantang River to Hainan Province distribution is arranged.Flower eel natural disposition is peculiar, and it is for falling river property straddling fish stocks, egg reproduction in the 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 the intermountain trench; Hide its daytime in crack of stone or soil pit, night is out movable; Body is strong and strong, and disposition is violent; It is take the animality foodstuff as many, often take fish and invertebrate such as small fish and shrimp, shellfish, crab and worm etc. as main foodstuff.
According to the study, the flower eel has very high economic worth, and not only meat is good for it, delicious flavour, and flower eel amino acid reaches 18 kinds, and lipid is take triglyceride as main, and inorganic elements, EPA, DHA content are high, DHA＞EPA wherein, nutritive value is better than Japanese eel and European eel.At present, flower eel seed rearing mode adopts cement pit flowing water pattern or native pool cultivated pattern more, and cultivation density is low, and the cultivation survival rate is low, and water consumption is large, and native pool cultivated pattern causes colored eel to run away easily; So the not high thick breeding phase of seed mark that mainly embodies a concentrated reflection of of flower eel fanning economics causes 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 flower eel seed mark, life habit according to the flower eel, provide a kind of raising flower eel seed mark slightly to cultivate density, improve cultivating survival rate and flower eel seed growth rate, reduce the thick cultural method of cultivating of colored eel seed mark of flower eel seed rearing cost.
Make eye bright for reaching above-mentioned, the technical scheme of employing is as follows:
A kind of thick cultural method of cultivating of eel seed mark of spending may further comprise the steps:
A), build the cement culturing pool, building an area is 10m
2The rectangle cement culturing pool of size, the cement culturing pool is long * wide be 4m * 3m, the degree of depth of cement culturing pool is at least more than the 1.2m, cement culturing pool bottom center a little less than around, the culturing pool bottom center is provided with a discharge outlet, discharge outlet is stamped a steel wire;
B), net cage is made, utilize pvc pipe make four limits than four limits of cement culturing pool respectively short 40cm and bottom surface than the pond at the bottom of the framework of high 10cm, base of frame adopts many pvc pipes to prop up, the bottom that reaches all around of filter being wrapped up framework consists of a net cage, the net cage height is more than the 1.2m, the net cage upper frame is long * wide be 3.2m * 2.2m, the mesh internal diameter can not be escaped from colored eel and is got final product, can not overstockedly cause, flowing water or blowdown inconvenience, and mesh is overstocked, easily makes screen cloth adhere to easily dirt, stop up mesh, the framework that make with pvc pipe at the net cage top is propped up, and net cage is put into the cement culturing pool, net cage do not contact the cement culturing pool around and the bottom, the space that the pool wall of net cage and cement culturing pool is reserved 40cm makes things convenient for lower storage reservoir brush net, flushing operation; Net cage makes colored eel that the growing environment of individual relative clean be arranged, and dirt at the bottom of the disengaging pond is avoided flower eel seed to produce for a long time disease in dirt, and made things convenient for the work of cement pit increase the DO;
C), place respectively a current boost motor at cement culturing pool four jiaos, select the pvc pipe of long 60cm and internal diameter 5cm, and remove 1/3 part of pvc pipe one port cross section and form a tilt port, select the tilt port of four pvc pipes downward, tiltedly extend into net cage with 45 ℃ of angles respectively, the other end of pvc pipe is individually fixed in the interface of four jiaos current boost motor of cement culturing pool, and build respectively to establish four jiaos of cement culturing pools and fix with current boost motor one and long, wide, height is the cement block of 20cm * 20m * 5cm, be convenient to whole fixedly current boost motor, and open an osculum at each pvc pipe near the cement block end, insert the wireway that is communicated with cement culturing pool outer air, during ventilation, the current boost motor that the cement culturing pool is four jiaos is sprayed water along counter clockwise direction by pvc pipe, make that current form counterclockwise circulation in the cement culturing pool, 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 for flower eel seed, promote that the flower eelfare is moving, accelerate digestion rate and take the photograph bait speed, and the discharge outlet that makes things convenient for dirt to enter cement culturing pool central authorities when changing water is concentrated and discharged;
D), also be provided with a plurality of inflating air stones for oxygenation in the net cage inside of cement culturing pool, inflating air stone is communicated with fan blower by pipeline, and inflating air stone is as the criterion with gas stone of every square metre of water surface;
E), red worm cleans, and puts 3 wide 60cm at indoor base, the tank of long 400cm is made several wide 50cm, the rectangle wooden frame of long 80cm is tightened 60 purpose screen cloths and is fixed on formation one screen frame on the rectangle wooden frame; When cleaning red worm, red worm is put into tank, tank one end flowing water, and the screen frame of making is pressed in above the red worm allows red worm climb work, when red worm climbs out of under the screen cloth, because the squeezing action of mesh can be got rid of in the body, a large amount of dirts of body surface; To climb the red worm that lives and place next tank to continue to support temporarily, climb work, the red worm that climbs later on after living for the 3 times like this eel seed of can throwing something and feeding; In addition, red worm is during tank is supported temporarily, and the red worm that often roll will gather the red worm of heap and break up, and supports temporarily red worm and turns over every day and to wash 3 times, avoids for a long time poly-heap and cause hypoxia death of red worm; The front red worm of throwing something and feeding need to be 8 ° sea water immersion sterilization half an hour through salinity;
F), put seedling before, the water level of cement culturing pool is adjusted to 40cm, one about half square metre bait feeding platform is set in net cage, putting colored eel seed size in a suitable place to breed is 2000 tail/jin, breeding density is 3000 tails/m
2Flower eel seed;
G), the cement culturing pool throws something and feeds, and throws in the 3rd day red worm that begins to throw something and feed behind the seed, red worm need to climb through red worm rinse bath and live more than 3 times, the half an hour sterilization of 8 ° of sea water immersions of the front usefulness of throwing something and feeding; Front 15 days, in order to promote flower eel seed phase nutrient accumulation, throw something and feed every day red worm 4 times, every minor tick 6 hours, be 6:00,12:00,18:00,24:00 each once, red worm is is directly thrown something and fed on fixing material-feeding platform, each feeding volume is eaten up with half an hour and is as the criterion, training flower eel seed is concentrated material feeding, will remain red worm after one hour and drag for away; Flower eel seed was thrown something and fed red worm after 15 days, and is urgent for fear of the survival pressure that flower eel seed causes along with the growth of specification, again because excessive throwing something and feeding causes disease to occur, is reduced to the red worm 3 times of throwing something and feeding every day, namely the 6:00 of every day, 12:00 and 18:00 each once;
H), the daily water quality management of cement culturing pool, water level was 40cm when the cement culturing pool was put seedling in earlier stage, later stage slowly increases to 60cm, cement culturing pool water level must be lower than net cage top 50cm, prevent that flower eel seed from escaping from net cage, flower eel seed easily climbs net in the flowing water situation, if water level and net cage top difference are less than 50cm, can make part flower eel seed climb out of net cage; The brush net gets situation and decide according to the actual adhesion fouling product of net, and the net cage in 3 days swabbing mud culturing pools once whenever hugely changes water once, brushes net cage and operates before changing water; When changing water, push the discharge outlet of cement culturing pool aside, emit whole water, and with at the bottom of around the hydraulic giant flushing water mud culturing pool and the pond, add water to rapidly original water level after having changed water, colored eel seed temperature of exposure and dry should not be above 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 the native pond, soil arranges fixedly bait feeding platform in the pond, to be at least 100cm dark for the soil pool water level, and breeding density is 60,000 tail/mus, puts the front Tu Chi of the colored eel seed sterilization of need to cleaning up the pond in advance in a suitable place to breed;
J), turn material and turn the pond and prepare, when flower eel seed size reaches the 1g/ tail, can prepare to spend the eel seed from the cement culturing pool transfer pond of burying, turning pond beginning in front 7 days bait transforms, the beginning of throwing something and feeding transforms (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 front 5 days, every morning the 6:00 a meal red worm of throwing something and feeding, noon 12:00 and afternoon the 18:00 eel powder of throwing something and feeding, eel powder becomes thick shape to throw something and feed with 1: 1 ratio water transfer; The full eel powder of feeding of 3 meal after 5 days, namely the 6:00 of every day, 12:00 and 18:00 feed eel powder entirely, and the eel powder that continues to throw something and feed was stable in rear three days; After stablizing 2 days, spend the sieve of eel seed to get, the colored eel seed that specification is reached the 1g/ tail changes Tu Chi over to, and the colored eel seed to specification does not continue to stay the red worm of throwing something and feeding in the cement culturing pool; The mode of more than throwing something and feeding is all set up fixing material platform in net cage, directly throw something and feed on the material platform, and half an hour is eaten up and is as the criterion, and skims residual bait after one hour; Before putting into native pond, need finish and turn material, avoid seed to enter do not ingest the later on situation of eel powder of Tu Chi and occur;
K), Tu Chi throws something and feeds, after flower eel seed is transferred to Tu Chi, in native pond, fixedly directly throw something and feed on the bait feeding platform, before specification reaches the 5g/ tail, throw something and feed every day 3 times, i.e. the 6:00 of every day, the 18:00 eel powder of throwing something and feeding, eel powder becomes thick shape to throw something and feed with 1: 1 ratio water transfer, the 12:00 red worm of throwing something and feeding eats up in half an hour with bait on the platform of throwing something and feeding at every turn and is as the criterion; Specification reaches the 5g/ tail eel powder of all throwing something and feeding later on, and reduces number of times to a day 2 meal of throwing something and feeding, i.e. the 6:00 of every day, the 18:00 eel powder of throwing something and feeding, and eel powder becomes thick shape to throw something and feed with 1: 1 ratio water transfer;
L), soil pool cultivated during, native pool water level need be higher than native pool outer water position, daily water quality management is, changes water 20% every day, and injects new water to former water level, and puts into one of 3 cun little pump at Tu Chizhong, drawing water and water outlet in former pond, forms water flow effects;
M), when flower eel seed reaches the 10g/ tail, can change the growing pond cultivation over to.
Aforesaid a kind of thick cultural method of cultivating of eel seed mark of spending is at step h) in also comprise: Tu Chi Chi Po imbeds and cover scrim, with the ceramic tile fence of 50cm, runs away in order to prevent flower eel seed around the Tu Chi.
Advantage of the present invention:
The present invention spends the thick cultural method of cultivating of eel seed mark, is divided into cement culturing pool mark extensive cultivation in early stage and grows with later stage soil pool cultivatedly, puts the sterilization of cleaning up the pond in advance before the seed in a suitable place to breed, and its purpose is that degerming removes 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, makes things convenient for the metabolite of filtering-depositing flower eel seed, optimizes living environment, improves the cultivation survival rate; At four jiaos of four current boost motors arranging of cement culturing pool, make current become counterclockwise circulation, create flowing water environment for flower eel seed, colored eel is often moved about, promote its digestion.Improve it and take the photograph bait speed and growth rate, and the current boost motor concentrates the discharge outlet of cement dirt in the middle of the cement pit, make things convenient for blowdown, for flower eel seed is created flowing water environment, colored eel is often moved about, improve it and take the photograph bait speed and growth rate, reach the living environment of optimizing the flower eel;
The space that the pool wall of net cage and cement culturing pool is reserved 40cm makes things convenient for lower storage reservoir brush net, flushing operation, net cage make colored eel that the growing environment of individual relative clean be arranged, and break away from dirt at the bottom of the pond, avoid flower eel seed in dirt, to produce for a long time disease, and make things convenient for the work of cement pit increase the DO.
The red worm of throwing something and feeding all passes through and climbing the processing of living, red worm climbs when alive, when red worm climbs out of under the screen cloth, because the squeezing action of mesh can be got rid of in the body, a large amount of dirts of body surface, and without repeatedly climbing the red worm that lives, sterilizes, because the impact of its former growth environment, body is interior, body surface all has a lot of dirts and bacterium, directly throw something and feed in flower eel seed, give rise to diseases easily, through repeatedly climbing the red worm that lives, cleans, can discharge the dirt in body surface, the body, more can effectively kill except bacterium after sterilization is soaked, avoid directly throwing something and feeding, cause colored eel seed various diseases.
Control cement culturing pool water level must be lower than net cage top 50cm, is in order to prevent that flower eel seed from escaping from net cage, to spend the eel seed in the flowing water situation, easily climbing net, if water level and net cage top difference are less than 50cm, can make part flower eel seed climb out of net cage; Net cage in 3 days swabbing mud culturing pools once whenever hugely changes water once, when changing water, push the discharge outlet of cement culturing pool aside, emit whole water, and with at the bottom of around the hydraulic giant flushing water mud culturing pool and the pond, add water to rapidly original water level after having changed water, this mode is changed water can make in the water dirt all discharge, introduce fully fresh water quality, make net cage and cement pit cleaning clean, and energy 100% changes water, be conducive to the growth of flower eel, be difficult for the outburst disease.
Flower eel seed is taken the photograph the bait time to be all half an hour in the process of throwing something and feeding of Tu Chi, and is to take the photograph bait in order to promote flower eel seed to concentrate, and avoids because excessive reason of ingesting cause the generation of gastrointestinal disease, and residual bait is easily ruined water quality; The red worm of throwing something and feeding during the flower eel seed cement culturing pool is main, in order to strengthen colored eel nutrient accumulation, guarantee the needed necessary nutrition of its growth, promote its growth rate, during Tu Chi before the specification 5g/ tail with eel powder for leading and being aided with red worm, also be in order to guarantee its required absorption that must nutrition, guarantee its growth rate, specification reaches after the 5g/ tail, and the eel powder of all throwing something and feeding can not affect its normal growth speed; The eel powder of throwing something and feeding is compared with the red worm of throwing something and feeding, and under the prerequisite that does not affect colored eel normal growth, can greatly reduce production cost.
The flower eel seed soil pond nurturing period, native pool water level need be higher than native pool outer water position, is because flower eel seed is liked against the current stream to get into the cave, and avoids the infiltration reason because of inside, export-oriented pond, pond, causes colored eel seed to get into the cave and runs away; Simultaneously, Tu Chi Chi Po imbeds and cover scrim, with the ceramic tile fence of 50cm, can prevent that also flower eel seed from runing away around the Tu Chi, and the disembarkation that causes during raining is especially run away; In addition, harmful organisms is more during the flower eel seed, and the shop is enclosed ceramic tile and also can be prevented effectively that harmful organisms from entering Tu Chi, harm flower eel seed.
[Figure of description]
Fig. 1 is the framework of net cage among the present invention and the structural representation of current boost motor.
[embodiment]
A kind of thick cultural method of cultivating of eel seed mark of spending may further comprise the steps:
A), build the cement culturing pool, building an area is 10m
2The rectangle cement culturing pool of size, the cement culturing pool is long * wide be 4m * 3m, the degree of depth of cement culturing pool is at least more than the 1.2m, cement culturing pool bottom center a little less than around, the culturing pool bottom center is provided with a discharge outlet, discharge outlet is stamped a steel wire;
B), net cage is made, as shown in Figure 1, utilize pvc pipe make four limits than four limits of cement culturing pool respectively short 40cm and bottom surface than the pond at the bottom of the framework 1 of high 10cm, base of frame adopts many pvc pipes to prop up, the bottom that reaches all around of filter being wrapped up framework consists of a net cage, the net cage height is more than the 1.2m, the net cage upper frame is long * wide be 3.2m * 2.2m, the mesh internal diameter can not be escaped from colored eel and is got final product, and can not overstockedly cause flowing water or blowdown inconvenience, and mesh is overstocked, easily make screen cloth adhere to easily dirt, stop up mesh, the framework that make with pvc pipe at the net cage top is propped up, net cage is put into the cement culturing pool, net cage do not contact the cement culturing pool around and the bottom, the space that the pool wall of net cage and cement culturing pool is reserved 40cm makes things convenient for lower storage reservoir to brush net, flushing operation; Net cage system makes colored eel that the growing environment of individual relative clean be arranged, and dirt at the bottom of the disengaging pond is avoided flower eel seed to produce for a long time disease in dirt, and made things convenient for the work of cement pit increase the DO;
C), place respectively a current boost motor at cement culturing pool four jiaos, continue as shown in Figure 1, select the pvc pipe of long 60cm and internal diameter 5cm, and remove 1/3 part of pvc pipe one port cross section and form a tilt port, select the tilt port of four pvc pipes downward, tiltedly extend into net cage with 45 ℃ of angles respectively, the other end of pvc pipe is individually fixed in the interface of four jiaos current boost motor 2 of cement culturing pool, and build respectively to establish four jiaos of cement culturing pools and fix with current boost motor one and long, wide, height is the cement block 3 of 20cm * 20m * 5cm, be convenient to whole fixedly current boost motor, and open an osculum at each pvc pipe near the cement block end, insert the wireway 4 that is communicated with cement culturing pool outer air, during ventilation, the current boost motor 2 that the cement culturing pool is four jiaos is sprayed water along counter clockwise direction by pvc pipe, make that current form counterclockwise circulation in the cement culturing pool, 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 for flower eel seed, promote that the flower eelfare is moving, accelerate digestion rate and take the photograph bait speed, and the discharge outlet that makes things convenient for dirt to enter cement culturing pool central authorities when changing water is concentrated and discharged;
D), also be provided with a plurality of inflating air stones for oxygenation in the net cage inside of cement culturing pool, inflating air stone is communicated with fan blower by pipeline, and inflating air stone is as the criterion with gas stone of every square metre of water surface;
E), red worm cleans, and puts 3 wide 60cm at indoor base, the tank of long 400cm is made several wide 50cm, the rectangle wooden frame of long 80cm is tightened 60 purpose screen cloths and is fixed on formation one screen frame on the rectangle wooden frame; When cleaning red worm, red worm is put into tank, tank one end flowing water, and the screen frame of making is pressed in above the red worm allows red worm climb work, when red worm climbs out of under the screen cloth, because the squeezing action of mesh can be got rid of in the body, a large amount of dirt of body surface; To climb the red worm that lives and place next tank to continue to support temporarily, climb work, the red worm that climbs later on after living for the 3 times like this eel seed of can throwing something and feeding; In addition, red worm is during tank is supported temporarily, and the red worm that often roll will gather the red worm of heap and break up, and supports temporarily red worm and turns over every day and to wash 3 times, avoids for a long time poly-heap and cause hypoxia death of red worm; The front red worm of throwing something and feeding need to be 8 ° sea water immersion sterilization half an hour through salinity; Without repeatedly climbing the red worm that lives, sterilizes, because the impact of its former growth environment, body is interior, body surface all has a lot of dirts and bacterium, directly throw something and feed in flower eel seed, give rise to diseases easily, through repeatedly climbing the red worm that lives, cleans, can discharge the dirt in body surface, the body, more can effectively kill except bacterium after sterilization is soaked, avoid directly throwing something and feeding, cause colored eel seed various diseases;
F), put seedling before, the water level of cement culturing pool is adjusted to 40cm, one about half square metre bait feeding platform is set in net cage, putting colored eel seed size in a suitable place to breed is 2000 tail/jin, breeding density is 3000 tails/m
2Flower eel seed;
G), the cement culturing pool throws something and feeds, and throws in the 3rd day red worm that begins to throw something and feed behind the seed, red worm need to climb through red worm rinse bath and live more than 3 times, the half an hour sterilization of 8 ° of sea water immersions of the front usefulness of throwing something and feeding; Front 15 days, in order to promote flower eel seed phase nutrient accumulation, throw something and feed every day red worm 4 times, every minor tick 6 hours, be 6:00,12:00,18:00,24:00 each once, red worm is is directly thrown something and fed on fixing material-feeding platform, each feeding volume is eaten up with half an hour and is as the criterion, training flower eel seed is concentrated material feeding, will remain red worm after one hour and drag for away; Flower eel seed was thrown something and fed red worm after 15 days, and is urgent for fear of the survival pressure that flower eel seed causes along with the growth of specification, again because excessive throwing something and feeding causes disease to occur, is reduced to the red worm 3 times of throwing something and feeding every day, namely the 6:00 of every day, 12:00 and 18:00 each once;
H), the daily water quality management of cement culturing pool, water level was 40cm when the cement culturing pool was put seedling in earlier stage, later stage slowly increases to 60cm, cement culturing pool water level must be lower than net cage top 50cm, prevent that flower eel seed from escaping from net cage, flower eel seed easily climbs net in the flowing water situation, if water level and net cage top difference are less than 50cm, can make part flower eel seed climb out of net cage; The brush net gets situation and decide according to the actual adhesion fouling product of net, and the net cage in 3 days swabbing mud culturing pools once whenever hugely changes water once, brushes net cage and operates before changing water; When changing water, push the discharge outlet of cement culturing pool aside, emit whole water, and with at the bottom of around the hydraulic giant flushing water mud culturing pool and the pond, add water to rapidly original water level after having changed water, colored eel seed temperature of exposure and dry should not be above 10 minutes; This mode is changed water can make in the water dirt all discharge, and introduces fully fresh water quality, makes net cage and cement pit cleaning clean, and can 100% changes water, is conducive to the growth of flower eel, is difficult for the outburst 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 the native pond, soil arranges fixedly bait feeding platform in the pond, to be at least 100cm dark for the soil pool water level, and breeding density is 60,000 tail/mus, puts the front Tu Chi of the colored eel seed sterilization of need to cleaning up the pond in advance in a suitable place to breed; Tu Chi Chi Po imbeds and cover scrim, use the ceramic tile fence of 50cm around the Tu Chi, in order to prevent that flower eel seed from runing away, the happiness of flower eel is flowed against the current, easily debark during raining and run away, screen cloth and ceramic tile fence are set prevent effectively that the flower eel from escaping, and harmful organisms is more during the flower eel seed, ceramic tile is enclosed in the shop also can prevent effectively that harmful organisms from entering Tu Chi, harm flower eel seed;
J), turn material and turn the pond and prepare, when flower eel seed size reaches the 1g/ tail, can prepare to spend the eel seed from the cement culturing pool transfer pond of burying, turning pond beginning in front 7 days bait transforms, throwing something and feeding, (eel powder described in the present embodiment is that Quanxing, Shuande, Foshan City aquatic feeds Co., Ltd produces to the eel powder conversion in beginning, can directly buy by market channel, the eel powder that below occurs is Quanxing, Shuande, Foshan City aquatic feeds Co., Ltd and produces, below give unnecessary details 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 front 5 days, every morning the 6:00 a meal red worm of throwing something and feeding, noon 12:00 and afternoon the 18:00 eel powder of throwing something and feeding, eel powder becomes thick shape to throw something and feed with 1: 1 ratio water transfer; The full eel powder of feeding of 3 meal after 5 days, namely the 6:00 of every day, 12:00 and 18:00 feed eel powder entirely, and the eel powder that continues to throw something and feed was stable in rear three days; After stablizing 2 days, spend eel seed sieve to get, the colored eel seed that specification is reached the 1g/ tail changes Tu Chi over to, and the colored eel seed to specification does not continue to stay the red worm of throwing something and feeding in the cement culturing pool; The mode of more than throwing something and feeding is all set up fixing material platform in net cage, directly throw something and feed on the material platform, and half an hour is eaten up and is as the criterion, and skims residual bait after one hour; Before putting into native pond, need finish and turn material, avoid seed to enter do not ingest the later on situation of eel powder of Tu Chi and occur;
K), Tu Chi throws something and feeds, after flower eel seed is transferred to Tu Chi, in native pond, fixedly directly throw something and feed on the bait feeding platform, before specification reaches the 5g/ tail, throw something and feed every day 3 times, i.e. the 6:00 of every day, the 18:00 eel powder of throwing something and feeding, eel powder becomes thick shape to throw something and feed with 1: 1 ratio water transfer, the 12:00 red worm of throwing something and feeding eats up in half an hour with bait on the platform of throwing something and feeding at every turn and is as the criterion; Specification reaches the 5g/ tail eel powder of all throwing something and feeding later on, and reduces number of times to a day 2 meal of throwing something and feeding, i.e. the 6:00 of every day, the 18:00 eel powder of throwing something and feeding, and eel powder becomes thick shape to throw something and feed with 1: 1 ratio water transfer; Tu Chi throws something and feeds in the process, takes the photograph the bait time to be all half an hour, and be to take the photograph bait in order to promote flower eel seed to concentrate, avoid because excessive reason of ingesting causes the generation of gastrointestinal disease, and residual and easily ruin water quality; The red worm of throwing something and feeding during the flower eel seed cement culturing pool is main, in order to strengthen colored eel nutrient accumulation, guarantee the needed necessary nutrition of its growth, promote its growth rate, during Tu Chi before the specification 5g/ tail with eel powder for leading and being aided with red worm, also be in order to guarantee its required absorption that must nutrition, guarantee its growth rate, specification reaches after the 5g/ tail, and the eel powder of all throwing something and feeding can not affect its normal growth speed; The eel powder of throwing something and feeding is compared with the red worm of throwing something and feeding, and under the prerequisite that does not affect colored eel normal growth, can greatly reduce production cost;
L), soil pool cultivated during, native pool water level need be higher than native pool outer water position, daily water quality management is, changes water 20% every day, and injects new water to former water level, and puts into one of 3 cun little pump at Tu Chizhong, drawing water and water outlet in former pond, forms water flow effects; The flower eel seed soil pond nurturing period, native pool water level need be higher than native pool outer water position, is that hole, happiness are flowed against the current because flower eel seed is easily drilled, and avoids the infiltration reason because of inside, export-oriented pond, pond, causes colored eel seed to get into the cave and runs away;
M), when flower eel seed reaches the 10g/ tail, can change the growing pond cultivation over to.
Claims (2)
1. spend the thick cultural method of cultivating of eel seed mark for one kind, it is characterized in that, may further comprise the steps:
A), build the cement culturing pool, building an area is 10m
2The rectangle cement culturing pool of size, the cement culturing pool is long * wide be 4m * 3m, the degree of depth of cement culturing pool is at least more than the 1.2m, cement culturing pool bottom center a little less than around, the culturing pool bottom center is provided with a discharge outlet, discharge outlet is stamped a steel wire;
B), net cage is made, utilize pvc pipe make four limits than four limits of cement culturing pool respectively short 40cm and bottom surface than the pond at the bottom of the framework of high 10cm, base of frame adopts many pvc pipes to prop up, the bottom that reaches all around of filter being wrapped up framework consists of a net cage, the net cage height is more than the 1.2m, the net cage upper frame is long * wide be 3.2m * 2.2m, the mesh internal diameter can not be escaped from colored eel and is got final product, the framework that make with pvc pipe at the net cage top is propped up, net cage is put into the cement culturing pool, net cage do not contact the cement culturing pool around and the bottom;
C), place respectively a current boost motor at cement culturing pool four jiaos, select the pvc pipe of long 60cm and internal diameter 5cm, and remove 1/3 part of pvc pipe one port cross section and form a tilt port, select the tilt port of four pvc pipes downward, tiltedly extend into net cage with 45 ℃ of angles respectively, the other end of pvc pipe is individually fixed in the interface of four jiaos current boost motor of cement culturing pool, and build respectively to establish four jiaos of cement culturing pools and fix with current boost motor one and long, wide, height is the cement block of 20cm * 20m * 5cm, be convenient to whole fixedly current boost motor, and open an osculum at each pvc pipe near the cement block end, insert the wireway that is communicated with cement culturing pool outer air, during ventilation, the current boost motor that the cement culturing pool is four jiaos is sprayed water along counter clockwise direction by pvc pipe, make that current form counterclockwise circulation in the cement culturing pool, 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 for flower eel seed, promote that the flower eelfare is moving, accelerate digestion rate and take the photograph bait speed, and the discharge outlet that makes things convenient for dirt to enter cement culturing pool central authorities when changing water is concentrated and discharged;
D), also be provided with a plurality of inflating air stones for oxygenation in the net cage inside of cement culturing pool, inflating air stone is communicated with fan blower by pipeline, and inflating air stone is as the criterion with gas stone of every square metre of water surface;
E), red worm cleans, and puts 3 wide 60cm at indoor base, the tank of long 400cm is made several wide 50cm, the rectangle wooden frame of long 80cm is tightened 60 purpose screen cloths and is fixed on formation one screen frame on the rectangle wooden frame; When cleaning red worm, red worm is put into tank, tank one end flowing water, and the screen frame of making is pressed in above the red worm allows red worm climb work, when red worm climbs out of under the screen cloth, because the squeezing action of mesh can be got rid of in the body, a large amount of dirts of body surface; To climb the red worm that lives and place next tank to continue to support temporarily, climb work, the red worm that climbs later on after living for the 3 times like this eel seed of can throwing something and feeding; In addition, red worm is during tank is supported temporarily, and the red worm that often roll will gather the red worm of heap and break up, and supports temporarily red worm and turns over every day and to wash 3 times, avoids for a long time poly-heap and cause hypoxia death of red worm; The front red worm of throwing something and feeding need to be 8 ° sea water immersion sterilization half an hour through salinity;
F), put seedling before, the water level of cement culturing pool is adjusted to 40cm, one about half square metre bait feeding platform is set in net cage, putting colored eel seed size in a suitable place to breed is 2000 tail/jin, breeding density is 3000 tails/m
2Flower eel seed;
G), the cement culturing pool throws something and feeds, and throws in the 3rd day red worm that begins to throw something and feed behind the seed, red worm need to climb through red worm rinse bath and live more than 3 times, the half an hour sterilization of 8 ° of sea water immersions of the front usefulness of throwing something and feeding; Front 15 days, in order to promote flower eel seed phase nutrient accumulation, throw something and feed every day red worm 4 times, every minor tick 6 hours, be 6:00,12:00,18:00,24:00 each once, red worm is is directly thrown something and fed on fixing material-feeding platform, each feeding volume is eaten up with half an hour and is as the criterion, training flower eel seed is concentrated material feeding, will remain red worm after one hour and drag for away; Flower eel seed was thrown something and fed red worm after 15 days, and is urgent for fear of the survival pressure that flower eel seed causes along with the growth of specification, again because excessive throwing something and feeding causes disease to occur, is reduced to the red worm 3 times of throwing something and feeding every day, namely the 6:00 of every day, 12:00 and 18:00 each once;
H), the daily water quality management of cement culturing pool, water level was 40cm when the cement culturing pool was put seedling in earlier stage, later stage slowly increases to 60cm, cement culturing pool water level must be lower than net cage top 50cm, prevent that flower eel seed from escaping from net cage, net cage in 3 days swabbing mud culturing pools once whenever hugely changes water once, and the brush net cage operated before changing water; When changing water, push the discharge outlet of cement culturing pool aside, emit whole water, and with at the bottom of around the hydraulic giant flushing water mud culturing pool and the pond, add water to rapidly original water level after having changed water, colored eel seed temperature of exposure and dry should not be above 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 the native pond, soil arranges fixedly bait feeding platform in the pond, to be at least 100cm dark for the soil pool water level, and breeding density is 60,000 tail/mus, puts the front Tu Chi of the colored eel seed sterilization of need to cleaning up the pond in advance in a suitable place to breed;
J), turn material and turn the pond and prepare, when flower eel seed size reaches the 1g/ tail, can prepare to spend the eel seed from the cement culturing pool transfer pond of burying, turning pond beginning in front 7 days bait transforms, the beginning of throwing something and feeding transforms to eel powder, and the nutrient component of eel powder is protein content 〉=45%, fiber content≤1%, fat content 〉=4%, content of ashes≤18%, moisture≤10%; Bait transforms front 5 days, every morning the 6:00 a meal red worm of throwing something and feeding, noon 12:00 and afternoon the 18:00 eel powder of throwing something and feeding, eel powder becomes thick shape to throw something and feed with 1: 1 ratio water transfer; The full eel powder of feeding of 3 meal after 5 days, namely the 6:00 of every day, 12:00 and 18:00 feed eel powder entirely, and the eel powder that continues to throw something and feed was stable in rear three days; After stablizing 2 days, spend the sieve of eel seed to get, the colored eel seed that specification is reached the 1g/ tail changes Tu Chi over to, and the colored eel seed to specification does not continue to stay the red worm of throwing something and feeding in the cement culturing pool; The mode of more than throwing something and feeding is all set up fixing material platform in net cage, directly throw something and feed on the material platform, and half an hour is eaten up and is as the criterion, and skims residual bait after one hour; Before putting into native pond, need finish and turn material, avoid seed to enter do not ingest the later on situation of eel powder of Tu Chi and occur;
K), Tu Chi throws something and feeds, after flower eel seed is transferred to Tu Chi, in native pond, fixedly directly throw something and feed on the bait feeding platform, before specification reaches the 5g/ tail, throw something and feed every day 3 times, i.e. the 6:00 of every day, the 18:00 eel powder of throwing something and feeding, eel powder becomes thick shape to throw something and feed with 1: 1 ratio water transfer, the 12:00 red worm of throwing something and feeding eats up in half an hour with bait on the platform of throwing something and feeding at every turn and is as the criterion; Specification reaches the 5g/ tail eel powder of all throwing something and feeding later on, and reduces number of times to a day 2 meal of throwing something and feeding, i.e. the 6:00 of every day, the 18:00 eel powder of throwing something and feeding, and eel powder becomes thick shape to throw something and feed with 1: 1 ratio water transfer;
L), soil pool cultivated during, native pool water level need be higher than native pool outer water position, daily water quality management is: changing water 20% every day, and inject new water to former water level, and put into one of 3 cun little pump at Tu Chizhong, draws water and water outlet in former pond, forms water flow effects;
M), when flower eel seed reaches the 10g/ tail, can change the growing pond cultivation over to.
2. a kind of thick cultural method of cultivating of eel seed mark of spending according to claim 1 is characterized in that, at step h) in also comprise: Tu Chi Chi Po imbeds and cover scrim, with the ceramic tile fence of 50cm, runs away in order to prevent flower eel seed around the Tu Chi.
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