CN102626059A - Method for polyculturing river crabs, mandarin fish, and shrimps - Google Patents

Method for polyculturing river crabs, mandarin fish, and shrimps Download PDF

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CN102626059A
CN102626059A CN2012101218052A CN201210121805A CN102626059A CN 102626059 A CN102626059 A CN 102626059A CN 2012101218052 A CN2012101218052 A CN 2012101218052A CN 201210121805 A CN201210121805 A CN 201210121805A CN 102626059 A CN102626059 A CN 102626059A
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pond
water
feed
shrimp
mandarin fish
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李勇
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李勇
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    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02ATECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
    • Y02A40/00Adaptation technologies in agriculture, forestry, livestock or agroalimentary production
    • Y02A40/80Adaptation technologies in agriculture, forestry, livestock or agroalimentary production in fisheries management
    • Y02A40/81Aquaculture, e.g. of fish

Abstract

The invention provides a method for polyculturing river crabs, mandarin fish, and shrimps in order to improve the economic benefit of river crab culturing, which realizes an efficient combination of a plurality of high quality aquatic products and is an effective culturing model. The stocking density of the shrimps is 1-2 kg per mu, the stocking density of the mandarin fish is 10-20 tails per mu, and no feed is specially thrown to the shrimps and the mandarin fish in the culturing process. The growth of the river crabs is not affected, and the economic benefit of river crab culturing can be improved significantly.

Description

The polyculture method of a kind of river crab, mandarin fish, millet shrimp
Technical field
The present invention relates to aquaculture technology, specifically is the polyculture method of a kind of river crab, mandarin fish, millet shrimp.
Background technology
River crab has another name called crab, the formal name used at school Eriocheir sinensia; Mandarin fish is claimed mandarin fish, mandarin fish again, and several kinds are arranged, and this refers to stick up mouth mandarin fish kind.River crab and mandarin fish are two kinds of famous and precious high-grade aquatic products of China; Implement the breed of river crab, mandarin fish is existing; Along with they culture the continuous expansion of scale and the continuous increase of cultured output; Its culture benefit is difficult to further raising, at present, the breed of river crab, these two kinds of aquatic products of mandarin fish is got into low margin age.The millet shrimp has another name called little grass shrimp, and the formal name used at school oppossum shrimp extensively is present in the natural water body such as lake, river irrigation canals and ditches, the long 1.5-2.5cm of ripe individual's body, and the body surface color is blue or green black or yellow black transparent.Its source always relies on natural waters to fish for, and in recent years, this kind is sold fiery in the local market, and price climbs up and up.Along with people's growth in the living standard and wild resource day by day exhausted, the output that only depends on outer river to fish for can not be met the need of market far away, carries out propagating artificially of millet shrimp and will become and more and more be necessary.
Summary of the invention
The technical problem that the present invention will solve provides the polyculture method of a kind of river crab, mandarin fish, millet shrimp; Realize the efficient mated combination of several kinds of high-quality aquatic products; Effectively improve water body, efficiency of feed utilization; Improving the ratio for input and output value, significantly improve the economic benefit of pond culture of Chinese mitten crab, is a kind of effective aquaculture model.Implement though the breed of river crab, mandarin fish is existing, three kinds of supporting raising together with still of aquatic products are not reported.
The present invention is achieved in that the polyculture method of a kind of river crab, mandarin fish, millet shrimp, and its characteristic may further comprise the steps.
(1) pond condition: 0.8~1.5 meter of the pond depth of water; The slope, pond is than 1:1~1:3, and for well, it is supporting that draining is advanced in the pond with loam for the pond soil property; Water circuit reaches the three links requirement; The pond area is advisable for 3~40 mu, has the anti-facility of escaping of river crab around the pond, and the pond is overlapped by 0.2 kilowatt/mu the supporting bottom micropore of power standard aerator N.
(2) prepare in the pond: the pond is separated out one piece " temporarily support district " with netting gear with the pond through after cleaning up the pond, sterilize, apply fertilizer, plant grass, throwing spiral shell, and " supporting the district temporarily " is used for the crab kind and supports temporarily; Area accounts for the pond gross area 15%~20%, and rest surface is used for cultivating pasture and water early stage, and its area accounts for 80%~85% of the pond gross area; " fertilising " is meant that full pond is all over executing consumption 200kg-300kg/ mu with the abundant fermented animal dung of warp; Cultivating foundation bait, " planting grass " is meant in " supporting the district temporarily " with the waterweed to be that main, rest surface serves as that main many kinds pasture and water mixing of carrying out is planted with " hydrilla verticillata ", and waterweed was planted in the 2-3 month; 1 meter of spacing in the rows, 2 meters of line-spacings, every cave 20-30 strain grass; Hydrilla verticillata is also planted between the month in 2-3, with the sowing of hydrilla verticillata bud bud, every mu of sowing quantity 2-3kg; Also can plant between the month in 4-5, with the long hydrilla verticillata grass blade even dense planting at the bottom of the pond of 10-15cm, all pasture and water cultivated area sums account for 60%~70% of the pond gross area; " throwing spiral shell " was meant before the Ching Ming Festival, presses the full pond of consumption of 250Kg~300Kg/ mu and evenly throw in fresh and alive clean spiral shell.
(3) putting in a suitable place to breed of river crab kind, mandarin fish kind, millet shrimp: said river crab refers to Eriocheir sinensia, and said river crab kind refers to detain crab, and the strong anosis nothing of selective body is hindered; Specification is the button crab of 100-200/Kg, before by the end of March, puts 500~1200/mu of stocking rates in a suitable place to breed; Culture early stage crab kind and be placed on " supporting the district temporarily ", by the end of May or at the beginning of 6 months, treat that pasture and water in the pond are generally long during to the 30cm-50cm height; The filter that to " support the district temporarily " removes, and the pond is movable entirely to make river crab; Said mandarin fish kind is for sticking up mouth mandarin fish kind, and more than the long 5cm of body, stocking rate 10~15 tail/mus are in by the end of May or carry out full pond at the beginning of 6 months and put in a suitable place to breed; Described millet shrimp, formal name used at school is the fresh goods shrimp of fishing for when extraterrestrial river China rice shrimp, and specification is 5-6 tail/gram, and stocking rate 1Kg~2Kg/ mu evenly puts in a suitable place to breed in carrying out full pond the 3-4 month.
(4) throw and to raise: the feed for river crab of only throwing something and feeding, adhere to that " regularly, fixed point, decide matter " throw something and feed, according to the food situation adjustment feedstuff feeding quantity of river crab, the other bait throwing in of millet shrimp, mandarin fish.
(5) regulating and controlling water quality: every during the breed at a distance from 3~5 days, the new water of regularly annotating toward the pond; Every primary water matter conditioning agent that used at a distance from l5-20 days; Said water conditioner is biologic product and the quicklime of one type of photosynthetic inadequate bacterium, E.m bacterium, bacillus subtilis, and the biologic product that photosynthetic bacteria, E.m bacterium, bacillus subtilis are a type and quicklime is staggered uses keeps water transparency at 35cm-50cm; Open the micropore aerator as required, the dissolved oxygen content of guaranteeing Chi Shui is more than 5mg/l in good time.
(6) disease control and daily management: crab kind, mandarin fish kind, disinfection respectively when the millet shrimp is put lower storage reservoir in a suitable place to breed, soaked seed 3-10 minute with the concentration that terramycin 5ml/ rises, in feed, added terramycin in per about 10 days; Dose is that every double centner feed adds 15~20 gram terramycin; Use continuously to be one-period in 3 days, every 15-20 days, in feed, add the E.m bacterium; Consumption uses by the product description requirement; Use continuously to be one-period in 5 days, terramycin and E.m bacterium are used alternatingly, and the interval is more than 3 days between the two; Daily management refers to Xun Tang, prevents escaping, guard against theft, eliminating harmful organisms.
(7) aquaculture management of millet shrimp: mid-July, fished for a ripe individual list marketing of millet shrimp in every separated 5-10 days, under discharge outlet place or pasture and water; With the close net of 20 orders drag for sea, little close bamboo weir greatly, thickly the cage fishing gear is fished for, carry out wheel and catch listing, in the fall; Every at a distance from 5-10 days, adopt the chicken manure after fully fermenting to topdress consumption 50kg-100kg/ mu; Continuity is fished for the millet shrimp to late December, and has caught in the last pond of thoroughly doing.
Further improvement project of the present invention is; The said anti-facility of escaping is meant plain cloth net with the polyethylene material of 5~7 high friendships of 0.5-1.2 rice embankment forms a circle along the pond; Plain cloth net bottom end is imbedded the degree of depth that reaches 10cm-15cm in the soil; And use the above bamboo bar of diameter 3cm or cross section the plain cloth net to be supported to make it upright as the concrete stake of 6cm * 12cm, uses in the inner face position of the online end of plain cloth thickness as the height of 10-20 silk as the sun-proof plastic sheeting for farm use of 25cm along the network interface upper edge seam hang one and enclose and build up.
Further improvement project of the present invention is, throw and raise in the step, the morning every day 7-8 point, 30% of the whole day of throwing something and feeding feed total amount; Afternoon, 5 70% of whole day feed total amounts of throwing something and feeding later on fixed a point to throw something and feed in the pond, putting early stage in a suitable place to breed, threw something and fed on a small quantity; Small fish with chopping is main, is aided with pellet, soya-bean cake and wheat bran, in the megathermal period in 7~September; With pellet is main, suitably replenishes the pasture and water of hydrilla verticillata class, the iced trash fish of the chopping of throwing something and feeding on a small quantity; L0 month is suitably strengthened the ratio of throwing something and feeding of feed of animal origin, lets river crab have enough, short fat listing; Is culturing early stage the feeding volume aspect, shows a small surplus and be advisable to observe feed table second day morning, is culturing the middle and later periods, is eaten up with the feed on the feed table after throwing something and feeding 2~3 hours and be advisable.
Further improvement project of the present invention is, in the regulating and controlling water quality step, when regularly adding water; Get rid of the old water of pond part earlier, add new water again, discharge outlet will be filtered with double-layer leaching net; Outer filter 40 orders, inner filter screen 80~120 orders prevent that river crab and millet shrimp juvenile prawn from running away; To add water 15cm-20cm dark at every turn, and the usage amount by specification of biologic product requires to use, and the consumption of quicklime is each 10Kg/ mu. rice; In time remove floating rotten pasture and water in the pond simultaneously, control pasture and water area accounts for 60%~70% of the water surface.
Embodiment:
Embodiment: the applicant has carried out experiment and has cultured in many emerging towns, Siyang County, Jiangsu Province aquatic farm.
(1) test pond overview: test is cultured in the 1-12 month in 2011 and is carried out, and situation is following: four of test pond (1#, 2#, 3#, 4#), area are respectively 3.1 mu, 6.4 mu, 6.5 mu, 6.3 mu; 1#, 2# are the experiment pool, and 3#, 4# are the contrast pool, the depth of water 0.8~1.5m; The slope is than 1:3, and the pond soil property is a sandy loam, silt depth 20cm at the bottom of the pond; The water source is capital Hang Dayunheshui, has the anti-facility of escaping around the ridge, the pool.The sterilization of 25kg/ mu consumption, the sterilization of leaving nothing usable to the invading enemy are pressed with commercially available bleaching powder (available chlorine >=28%) in each pond after draining pool water at the beginning of 1 month.After the bleaching powder property of medicine eliminates, with close net sheet with four ponds respectively the end in the pond cross four " supporting the district temporarily ", " support temporarily and the distinguish " area in 1#, 2# pond is respectively 0.5 mu and 1 mu; 0.6 ton and 1.2 tons of the chicken manure of abundant fermentation is executed in two ponds respectively, and two " supporting the district temporarily " were planted waterweed 30Kg and 50Kg respectively January 11, afterwards; The about 15cm of water inlet is dark in the pond; March 16, buy fresh and alive clean spiral shell 2500Kg and evenly drop into two ponds, mid-April; Respectively at " culture zone " in two ponds plant hydrilla verticillata 100Kg and 200Kg, covered by pasture and water to about 60% area in pond by the end of May.The treatment measures in 3#, 4# pond and 1#, 2# pond are identical.
(2) put in a suitable place to breed: following table is to put information slip in a suitable place to breed: the button crab was put in the 1#-4# pond in a suitable place to breed February 16; The high-quality button crab that cultivate the locality of selecting the anosis nothing of physical health to hinder; Specification is 200/Kg, and stocking rate is respectively 800/mu and 1200/mu, and the button crab is put in a suitable place to breed " supporting the district temporarily "; 1#, 2# pond were put the millet shrimp in a suitable place to breed April 3, and it derives from the fresh goods shrimp of fishing for when extraterrestrial river, and specification is 5-6 tail/gram, and stocking rate 2Kg/ mu is put Shi Quanchi in a suitable place to breed and evenly thrown in; The mandarin fish kind was put in the 1#-4# pond in a suitable place to breed June 4, its source is for buying in the other places, more than the long 5cm of body, and stocking rate 10 tail/mus, put in a suitable place to breed in the pond entirely.
(3) throw and to raise: the feed for river crab of only throwing something and feeding, adhere to that " regularly, fixed point, decide matter " throw something and feed, according to the food situation adjustment feedstuff feeding quantity of river crab, the other bait throwing in of " millet shrimp ", mandarin fish.Putting early stage in a suitable place to breed, throw something and feed on a small quantity, is main with the small fish that shreds; Be aided with pellet, soya-bean cake and wheat bran, the megathermal period in 7~September is main with pellet; Suitably replenish the hydrilla verticillata pasture and water, the iced trash fish of the chopping of throwing something and feeding on a small quantity, l0 month is suitably strengthened the ratio of throwing something and feeding of feed of animal origin; Let river crab have enough, short fat listing; Is culturing early stage the feeding volume aspect, shows a small surplus and be advisable to observe feed table second day morning; Culturing the middle and later periods; Eaten up with the feed on the feed table after throwing something and feeding 2~3 hours and to be advisable, thrown something and fed twice every day, the upper and lower noon each once; 30% of the whole day of throwing something and feeding morning amount, 70% of the whole day of throwing something and feeding afternoon amount.
(4) regulating and controlling water quality: during the breed; Following regulating and controlling water quality measure has mainly been taked in the fish pond: every at a distance from 3~5 days; The regular new water of annotating toward the pond; Every primary water matter conditioning agent that used at a distance from l5-20 days, said water conditioner is biologic product and quicklimes such as photosynthetic inadequate bacterium, E.m bacterium, bacillus subtilis, biologic product and the staggered uses of quicklime such as photosynthetic bacteria, E.m bacterium, bacillus subtilis.When adding water, get rid of the old water of pond part earlier, add new water again, discharge outlet is filtered with double-layer leaching net; Outer filter 40 orders, inner filter screen 80~120 orders prevent that river crab and millet shrimp juvenile prawn from running away, to add water 15-20cm dark at every turn; The usage amount by specification of biologic product requires to use, and the consumption of quicklime is each 10Kg/ mu. rice, in time remove floating rotten pasture and water in the pond simultaneously, during the breed; Two pond water quality are all better, and between 35cm~50cm, dissolved oxygen is more than 5mg/l all the time for transparency; Pasture and water also grow fine, and during to the later stage, the hydrilla verticillata area still can account for 50% of pond area.
(5) disease control and daily management: during the breed; Mainly taked following disease prevention and cure measure: culture whole process and adhere to that mixing bait with the Em bacterium throws something and feeds, the megathermal period, in feed, added terramycin in per 10~15 days; Dose is that every double centner feed adds 15~20 gram terramycin; Use continuously to be one-period in 3 days, terramycin and E.m bacterium are used alternatingly, and the interval is more than 3 days between the two; River crab, mandarin fish, millet shrimp are not broken out disease; The daily management mission in crab pond mainly contains patrols the pool, the trimming ridge, the pool, anti-facility, antitheft, the removing harmful organisms (muroid, batrachia, aquatic bird) escaped of maintenance.
(6) result and analysis: following table is river crab, mandarin fish, millet shrimp results information slip: by visible in the table, the test pond 1# pool significant difference all occurred with river crab, the rate of recapture of mandarin fish, specification, the per mu yield on the contrast 3# pool, the pool; The test pond 2# pool bigger difference also occurred with the contrast 4# pool, pool river crab, the rate of recapture of mandarin fish, specification, per mu yield; The river crab of l#, 2# test pond, the survival rate of mandarin fish, specification, per mu yield all obviously are better than 2#, 3# contrasts the pool, and l#, 2# test pond have obtained higher millet shrimp output.Through calculating, 38694.5 yuan of test pond l#, 2# total expenditures, 118177.6 yuan of total incomes, 79483.1 yuan of net incomes, 8366.64 yuan of average mu incomes, the ratio for input and output value is 3.1:1; 40825.6 yuan of contrast pool 3#, 4# total expenditures, 95479.56 yuan of total incomes, 54653.96 yuan of net incomes, 4269.84 yuan of average mu incomes, the ratio for input and output value is 2.3:1.The average mu net income of test pond, ratio for input and output value are compared according to the pool high 0.96 times and 0.8 times respectively.
(7) advantage and effect: millet shrimp fertility is strong, and life cycle is short, and is nutritious, become high-quality aquatic products well received on the local market; After sick millet shrimp and the breeding will or the millet shrimp of natural death still be the main foster kind in crab pond---foster kind is joined in river crab and crab pond---the high-quality living bait of mandarin fish; The millet shrimp is raised together with in the river crab pond; When raising together with density and be 1kg~2kg/ mu, do not need to throw in addition feed, the millet shrimp eats that river crab eats surplus swill, organic debris at the bottom of swim animals and plants and the pond; Play a part crab pond street cleaner; Feed for river crab is fully used, and, help water quality protection; Raise together with the millet shrimp, input cost is lower, and is simple and easy to do, saves trouble that it is effective to save time, and can significantly improve going out the pond specification and going out pond output of river crab, mandarin fish, and obtains the millet shrimp output of some, thereby significantly improved economic benefit.

Claims (5)

1. the polyculture method of a river crab, mandarin fish, millet shrimp is characterized in that comprising the following steps:
(1) pond is selected: 0.8~1.5 meter of the pond depth of water; The slope, pond is than 1:1~1:3, and for well, it is supporting that draining is advanced in the pond with loam for the pond soil property; Water circuit reaches the three links requirement; The pond area is advisable for 3~40 mu, has the anti-facility of escaping of river crab around the pond, and the pond is overlapped by 0.3 kilowatt/mu the supporting bottom micropore of power standard aerator N;
(2) prepare in the pond: the pond is separated out one piece " temporarily support district " with netting gear with the pond through after cleaning up the pond, sterilize, apply fertilizer, plant grass, throwing spiral shell, and " supporting the district temporarily " is used for the crab kind and supports temporarily; Area accounts for the pond gross area 15%~20%, and rest surface is used for cultivating pasture and water early stage, and its area accounts for 80%~85% of the pond gross area; " fertilising " is meant that full pond is all over executing consumption 200kg-300kg/ mu with the abundant fermented animal ight soil of warp; Cultivating foundation bait, " planting grass " is meant in " supporting the district temporarily " with the waterweed to be that main, rest surface serves as that main many kinds pasture and water mixing of carrying out is planted with " hydrilla verticillata ", and waterweed was planted in the 2-3 month; 1 meter of spacing in the rows, 2 meters of line-spacings, every cave 20-30 strain grass; Hydrilla verticillata is also planted between the month in 2-3, with the sowing of hydrilla verticillata bud bud, every mu of sowing quantity 2-3kg; Also can plant between the month in 4-5, with the long hydrilla verticillata grass blade even dense planting at the bottom of the pond of 10-15cm, all pasture and water cultivated area sums account for 60%~70% of the pond gross area; " throwing spiral shell " was meant before the Ching Ming Festival, presses the full pond of consumption of 250Kg~300Kg/ mu and evenly throw in fresh and alive clean spiral shell;
(3) putting in a suitable place to breed of river crab kind, mandarin fish kind, millet shrimp: before by the end of March, put river crab kind, millet shrimp in a suitable place to breed, at the beginning of by the end of May to 6 months, put the mandarin fish fingerling in a suitable place to breed;
(4) throw and to raise: the feed for river crab of only throwing something and feeding, adhere to that " regularly, fixed point, decide matter " throw something and feed, according to the food situation adjustment feedstuff feeding quantity of river crab, the other bait throwing in of millet shrimp, mandarin fish;
(5) regulating and controlling water quality: every during the breed at a distance from 3~5 days, the new water of regularly annotating toward the pond; Whenever used primary water matter conditioning agent at a distance from l5-20 days; Said water conditioner is biologic product and the quick lime of one type of photosynthetic inadequate bacterium, E.m bacterium, bacillus subtilis, and the biologic product that photosynthetic bacteria, E.m bacterium, bacillus subtilis are a type and quick lime is staggered uses keeps water transparency at 35cm-50cm; Open the micropore aerator as required, the dissolved oxygen content of guaranteeing Chi Shui is more than 5mg/l in good time;
(6) disease control and daily management: crab kind, mandarin fish kind, disinfection respectively when the millet shrimp is put in a suitable place to breed, soaked seed 3-10 minute with the concentration that terramycin 5ml/ rises, in feed, added terramycin in every 10-15 days; Dose is that every double centner feed adds 15~20 gram terramycin; Use continuously to be one-period in 3 days, every 15-20 days, in feed, add the E.m bacterium; Consumption uses by the product description requirement; Use continuously to be one-period in 5 days, terramycin and E.m bacterium are used alternatingly, and the interval is more than 3 days between the two; Daily management refers to Xun Tang, prevents escaping, guard against theft, eliminating harmful organisms;
(7) aquaculture management of millet shrimp: mid-July, fished for a ripe individual list marketing of millet shrimp in every separated 5-10 days, under discharge outlet place or pasture and water; With the close net of 20 orders drag for sea, little close bamboo weir greatly, thickly the cage fishing gear is fished for, carry out wheel and catch listing, in the fall; Every at a distance from 5-10 days, adopt the chicken manure after fully fermenting to topdress consumption 50kg-100kg/ mu; Continuity is fished for the millet shrimp to late December, and has caught in the last pond of thoroughly doing.
2. river crab according to claim 1, mandarin fish, millet shrimp polyculture method; It is characterized in that in pond condition; The said anti-facility of escaping is meant plain cloth net with the polyethylene material of 5~7 high friendships of 0.5-1.2 rice embankment forms a circle along the pond; Plain cloth net bottom end is imbedded the degree of depth that reaches 10cm-15cm in the soil; And use the above bamboo bar of diameter 3cm or cross section the plain cloth net to be supported to make it upright as the concrete stake of 6cm * 12cm, uses in the inner face position of the online end of plain cloth thickness as the height of 10-20 silk as the sun-proof plastic sheeting for farm use of 25cm along the network interface upper edge seam hang one and enclose and build up.
3. river crab according to claim 1, mandarin fish, millet shrimp polyculture method is characterized in that putting in a suitable place to breed in the step river crab kind, mandarin fish kind, millet shrimp, and said river crab kind is the button crab; The strong anosis nothing of body is hindered, and specification is 100-200/Kg, 500~1200/mu of stocking rates; Culture early stage crab kind and be placed on " supporting the district temporarily ", by the end of May or at the beginning of 6 months, when treating that pasture and water in the pond generally grow tall 30cm-50cm; The filter that to " support the district temporarily " removes, and the pond is movable entirely to make river crab; Said mandarin fish kind is for sticking up mouth mandarin fish kind, more than the long 5cm of body, and stocking rate 10~20 tail/mus, put in a suitable place to breed in full pond; Said millet shrimp has another name called little grass shrimp, and the formal name used at school oppossum shrimp is the fresh goods shrimp gradeless and uniformly-priced goods of fishing for when extraterrestrial river, and specification is 5-6 tail/gram, and stocking rate 1Kg~2Kg/ mu puts Shi Quanchi in a suitable place to breed and evenly throws in.
4. river crab according to claim 1, mandarin fish, millet shrimp polyculture method is characterized in that raising in the step in throwing, the morning every day 7-8 point, 30% of the whole day of throwing something and feeding feed total amount; Afternoon 5 70% of whole day feed total amounts of throwing something and feeding later on, throw something and feed in the fixed location in the pond, put in a suitable place to breed the early stage, throw something and feed on a small quantity; Small fish with chopping is main, is aided with pellet, soya-bean cake and wheat bran, in the megathermal period in 7~September; With pellet is main, suitably replenishes the pasture and water of hydrilla verticillata class, the iced trash fish of the chopping of throwing something and feeding on a small quantity; L0 month is suitably strengthened the ratio of throwing something and feeding of feed of animal origin, lets river crab have enough, short fat listing; Is culturing early stage the feeding volume aspect, shows a small surplus and be advisable to observe feed table second day morning, is culturing the middle and later periods, is eaten up with the feed on the feed table after throwing something and feeding 2~3 hours and be advisable.
5. river crab according to claim 1, mandarin fish, millet shrimp polyculture method is characterized in that in the regulating and controlling water quality step, when regularly adding water; Get rid of the old water of pond part earlier, add new water again, discharge outlet will be filtered with double-layer leaching net; Outer filter 40 orders, inner filter screen 80~120 orders prevent that river crab and millet shrimp juvenile prawn from running away; To add water 15cm-20cm dark at every turn, and the usage amount by specification of biologic product requires to use, and the consumption of quicklime is each 10Kg/ mu. rice; In time remove floating rotten pasture and water in the pond simultaneously, control pasture and water area accounts for 60%~70% of the water surface.
CN2012101218052A 2012-04-25 2012-04-25 Method for polyculturing river crabs, mandarin fish, and shrimps Pending CN102626059A (en)

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CN104285853A (en) * 2014-09-01 2015-01-21 珠海市斗门区河口渔业研究所 Ecological prevention and control method of river mouth zone shrimp pond mixed spiral shells
CN104304107A (en) * 2014-09-26 2015-01-28 浙江海洋学院 Method for mixed culturing of swimming crabs and palaemon carinicauda
CN104488763A (en) * 2014-11-30 2015-04-08 刘长华 Cultivation method for neocaridina denticulata
CN104705230A (en) * 2015-04-10 2015-06-17 宁国市金东坊农业开发有限公司 Pond polyculture method of Tor brevifilis brevifilises and freshwater shrimps
CN106577365A (en) * 2016-11-09 2017-04-26 新疆维吾尔自治区水产科学研究所 Efficient breeding method with utilization of micropore oxygen-increasing technology and air-conveying feeding system in combined mode
CN106804498A (en) * 2017-02-07 2017-06-09 浙江省海洋水产研究所 A kind of high-density breeding method of new oppossum shrimp in east in Portunus trituberculatus Miers culture pond
CN107155986A (en) * 2017-06-01 2017-09-15 江苏红膏大闸蟹有限公司 The cultivating system and cultural method of a kind of river crab
CN107279007A (en) * 2017-07-27 2017-10-24 广西桂平市石龙镇江夏种养专业合作社 The method that a kind of river crab pond high density set supports mandarin fish
CN107593564A (en) * 2017-09-13 2018-01-19 寿县绿园特种水产生态养殖加工有限责任公司 A kind of crab cultivation ecological environment-friendly type culture pond
CN107743834A (en) * 2017-10-26 2018-03-02 无为县瑞康特种水产养殖有限公司 A kind of pond breeding method for detaining crab juvenile crab
CN109430129A (en) * 2018-11-27 2019-03-08 安徽省农业科学院水产研究所 A kind of crab that producing big specification freshwater shrimp and river crab, shrimp, sleeper, mandarin fish support method altogether

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CN104488763A (en) * 2014-11-30 2015-04-08 刘长华 Cultivation method for neocaridina denticulata
CN104705230A (en) * 2015-04-10 2015-06-17 宁国市金东坊农业开发有限公司 Pond polyculture method of Tor brevifilis brevifilises and freshwater shrimps
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CN107155986A (en) * 2017-06-01 2017-09-15 江苏红膏大闸蟹有限公司 The cultivating system and cultural method of a kind of river crab
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