CN205648729U - Stichopus japonicus is bred automatic throwing and raises device - Google Patents

Stichopus japonicus is bred automatic throwing and raises device Download PDF

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CN205648729U
CN205648729U CN201620410493.0U CN201620410493U CN205648729U CN 205648729 U CN205648729 U CN 205648729U CN 201620410493 U CN201620410493 U CN 201620410493U CN 205648729 U CN205648729 U CN 205648729U
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pvc
pond
feeding tube
throws
throw
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胡炜
李成林
赵斌
韩莎
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Shandong Marine Biology Institute
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Shandong Marine Biology Institute
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Abstract

The utility model provides a stichopus japonicus is bred automatic throwing and raises device, its characteristics are: transversely set up the aquaculture net cage and do the ginseng reef along advancing the drainage direction in the sea water pond, be close to along the aquaculture net cage water inlet one side, a plurality of piece fixed PVC of cisoid of bottom of the pool take the altitude department that are higher than the sea water pond throw the feeding -tube way, and PVC throws the feeding -tube and says and set up the round hole, and each PVC throws the feeding -tube and says that the middle position connects inclosed tertiary pipeline and lead to sea water pond limit to the second grade pipeline that the drainage orientation set up is advanced along the pond to the inward -remittance, and trunk line of second grade pipeline relinking, trunk line pass through the three -way valve and connect self priming pump and roots blower respectively, and the self priming pump is connected bottom the fodder treatment trough. Put in the seed in the sea water pond, carry out daily management, throw the method of raising: at the growth busy season of stichopus japonicus, the fodder of throwing something and feeding. The utility model discloses level of mechanization is high, can improve breed efficiency, reduce intensity of labour, reduce the disease to take place, promote product quality and integrated culture benefit.

Description

Apostichopus japonicus culture automatization throws and raises device
Technical field
This utility model relates to mariculture technology, and a kind of apostichopus japonicus culture automatization throws and raises device specifically.
Background technology
Radix Morinae Bulleyanae is the most just described as first of " marine products eight delicacies ", have the kidney invigorating, benefit essence, nourish blood, antitumor, raising immunity The unique effects such as power, high nutritive value.From 2003, the apostichopus japonicus culture industry size of China obtained swift and violent expansion, became For the sea-farming leading industry that the single variety cultivation output value is the highest, Radix Morinae Bulleyanae aquaculture area about 3,000,000 mu, year have been developed in the whole nation Yield about 200,000 tons, nearly 40,000,000,000 yuan of annual value of production.According to another statistics, the 80% of current Radix Morinae Bulleyanae product consumption is concentrated mainly on and accounts for people from whole nation The mouth coastal area less than 10%, along with people constantly deepening and the exploitation in market, inland Radix Morinae Bulleyanae product cognition degree, thorn The annual requirement of ginseng is with the speed sustainable growth more than 10%, and consumer market demand has a high potential.
Radix Morinae Bulleyanae is typical deposition feeding habits animal, mainly with the silt in bottom, organic substance, some antibacterial and primary dynamic Thing is food.At present, non-throwing can be divided into raise type for Apostichopus japonicus in Ponds and two kinds of type is raised in throwing, or breeding density fertile in water quality is less than 2 Head/m2Pond can not throw and raise, but it is longer to be rendered obvious by Radix Morinae Bulleyanae poor growth, culture-cycle, throws and raises type cultivation generally in water quality The pond that thinner or cultivation density is bigger is carried out, throws to raise and grind liquid, sea mud or artificial rich in benthic diatom with tangleweed Mixed feed is main, throw the amount of raising be culturing stichopus japonicus body weight 3%~5%/time, throwing in 5~7 days is raised once, and according to weather, water temperature with And the situation such as the feeding activity of Radix Morinae Bulleyanae is adjusted flexibly.Owing to the cultivating pool water surface relatively greatly and is outdoor open environment, therefore throw and raise Can only take artificial to row the boat while the method for full pool spilling head, not only waste time and energy, extremely inefficient, and the feedstuff splashed is distributed the most not Uniformly, causing that culturing stichopus japonicus growth differences is relatively big, skewness, the most easily there is locally water in the more region of pond bottom sediments feedstuff Matter and substrate cancerate induction disease, and yield and product quality to Radix Morinae Bulleyanae all cause considerable influence.
For above industry demand present situation, how to design the throwing of a set of apostichopus japonicus culture automatization and raise device, solve current Radix Morinae Bulleyanae Mechanization in continental rise pond culture, standardization and the precision level of production are low, serious waste of resources, production cost occupy height not Under, production capacity is unstable, the industry ability to ward off risks is substantially not enough problem, promote industry upgrading potentiation, make production reach efficiently, save Can, safety the through engineering approaches level of production, improve cultivation efficiency, reduce labor intensity, reduce disease occur, improving product quality and Composite culture benefit, this is the technical problem that current this area is urgently to be resolved hurrily.
Summary of the invention
This utility model is to solve the problems referred to above that prior art exists, it is provided that a kind of apostichopus japonicus culture automatization throws and raises dress Putting, the mechanization degree that facility is raised in throwing is high, can improve cultivation efficiency, reduce labor intensity, minimizing disease generation, improving product Quality and composite culture benefit.
The purpose of this utility model is achieved by the following technical solution: a kind of apostichopus japonicus culture automatization throws and raises device, Including sea pond, sea pond arranges water inlet and outlet, it is characterised in that along entering draining side in described sea pond Do reefglider to horizontally set aquiculture mesh cage, along aquiculture mesh cage near described water inlet side, higher than the pond of sea pond at the bottom of one Forward fixing some PVC at fixed height and throw feeding tube road, described PVC throws and arranges circular hole on feeding tube road, and described each PVC throws feeding tube road Middle position connects airtight triode road and leads to sea pond limit, and imports the diode entering drainage direction setting along pond Road, described secondary canalization reconnects one end of a main pipeline, and the other end of described main pipeline is connected certainly respectively by three-way valve Sucking pump and Roots blower, the other end of described self priming pump is connected bottom supporting feedstuff treatment trough.
Improvement to technique scheme: described feedstuff treatment trough is glass steel material, described feedstuff processes
The groove bottom of groove is 8 °-15 ° inclinations, is equipped with stirring vane or stirring rod in groove.
Further improvement to technique scheme: be fixed on sea pond with polyethylene rope after the stretching of described aquiculture mesh cage Pond at the bottom of, 1 row PVC is set between every 2 row aquiculture mesh cages and throws feeding tube road, every 7 PVC throw middle position, feeding tube road connect one close The triode road closed leads to sea pond limit.
Further improvement to technique scheme: the sea water advanced at least 150cm in described sea pond, described The circular hole spacing that PVC throws on feeding tube road is 80-120cm, and described Circularhole diameter is divided into two kinds of specifications of size, and described PVC throws feeding tube Circular hole in the length of middle position, road at least 1/3 is small dimension circular hole, and it is big specification that described PVC throws remaining circular hole on feeding tube road Circular hole.
Further improvement to technique scheme: described PVC throws feeding tube track pitch from least 15cm at the bottom of the pond of sea pond, Described PVC throws the small dimension Circularhole diameter that a diameter of 20-30mm in feeding tube road, described PVC throw on feeding tube road and is respectively 1.5-2mm, Big specification Circularhole diameter is 2.5-3mm;Described triode road diameter is respectively 50-70mm;Described main pipeline and secondary canalization are straight Footpath is 70mm-100mm;The volume of described feedstuff treatment trough is 3-6m3
Further improvement to technique scheme: described Roots blower blast of giving vent to anger is not less than 60kPa, power 10-20kw;Described self priming pump uses ZW self-sucking non-plugging dredge pump, and power is 3kw-8kw, and flow is not less than 10m3/h。
This utility model compared with prior art has many advantages and a good effect:
(1) this utility model throw raise device achieve first culturing stichopus japonicus in outdoor outdoor pond mechanization throw raise, Labor intensity can be greatly reduced, save cost of labor, and also can be the completeest there being wind etc. to be unfavorable under manually-operated weather Throwing is become to raise work.
(2) throwing in this utility model is raised device and the impact of apostichopus japonicus culture effect is significantly better than the Traditional Man throwing side of raising Method.Utilize this utility model to throw and raise that the feedstuff that device throws something and feeds is evenly distributed, feeding volume controls precisely, phagostimulating effect is good, can carry The high Radix Morinae Bulleyanae speed of growth more than 13%, saving feedstuff more than 11%, and beneficially culturing stichopus japonicus is being uniformly distributed at the bottom of pond.Solve The problems such as the excessive substrate deterioration caused of residual bait at the bottom of pond and Radix Morinae Bulleyanae local density and anoxia, thus disease is greatly decreased and occurs, carry High cultivation survival rate and product specification.
(3) this utility model is thrown and is raised device and have the features such as simple installation, low cost, length in service life, such as cultivating pool If paving oxygenating system of the existing end, it is not necessary to individually additionally arrange pipeline, it is only necessary to according to this utility model, wherein key is arranged parameter Carry out appropriate reconstruction and i.e. can reach similar effects.
(4) this utility model is thrown and is raised device and have the function of one tube multipurpose in breeding process, i.e. arranges after installation not only Can be used for daily feedstuff of throwing something and feeding, it may also be used for other are supported to execute microorganism formulation, substrate modifier etc. for pond waters oxygen supplement and throwing Grow the function of input.
Accompanying drawing explanation
Fig. 1 is that the horizontal layout schematic diagram raising device is thrown by this utility model a kind of apostichopus japonicus culture automatization;
Fig. 2 is the partial enlarged drawing of I indication part in Fig. 1.
Detailed description of the invention
Below in conjunction with specific embodiment, this utility model is described in further detail:
Seeing Fig. 1, Fig. 2, the embodiment raising device is thrown by this utility model a kind of apostichopus japonicus culture automatization, including sea pond 1, sea pond 1 is provided with water inlet and outlet.Along entering drainage direction horizontally set aquiculture mesh cage in described sea pond 1 Do reefglider, if along aquiculture mesh cage near described water inlet side, higher than the pond of sea pond at the bottom of at certain altitude forward fixing Dry root PVC throws feeding tube road 2, throws at PVC and arranges circular hole 3 on feeding tube road 2, and each PVC throws the middle position in feeding tube road 2 and connects airtight Triode road 4 leads to sea pond edge, and imports the secondary canalization 5 entering drainage direction setting along pond, and secondary canalization 5 connects again Connecing one end of a main pipeline 8, the other end of main pipeline 8 connects self priming pump 10 and Roots blower 6 respectively by three-way valve 7, The other end of self priming pump 10 is connected bottom supporting feedstuff treatment trough 9.
Specifically: above-mentioned feedstuff treatment trough 9 is glass steel material, the groove bottom of feedstuff treatment trough 9 is 8 °-15 ° inclinations, Stirring vane or stirring rod it is equipped with in groove.
It is fixed on polyethylene rope after the stretching of above-mentioned aquiculture mesh cage at the bottom of the pond of sea pond, sets between every 2 row aquiculture mesh cages Putting 1 row PVC and throw feeding tube road 2, every 7 PVC throw a piece airtight triode road of connection, middle position, feeding tube road 2 and lead to 4 to sea water pond Edge, the side of a pond.Utility model patent " a kind of sea cucumber rock that aquiculture mesh cage can use number of patent application to be ZL200420047278.6 And holothruian cultures cylinder mould " disclosed in aquiculture mesh cage.
The spacing that sea water advanced at least 150cm, PVC in above-mentioned sea pond 1 throws the circular hole 3 on feeding tube road 2 is 80-120cm, circular hole 3 diameter is divided into two kinds of specifications of size, and the circular hole 3 that PVC throws in the length of middle position at least 1/3, feeding tube road 2 is Small dimension circular hole 3.2, it is big specification circular hole 3.1 that PVC throws remaining circular hole 3 on feeding tube road 2.
Above-mentioned PVC throws feeding tube road 2 and throws a diameter of 20-in feeding tube road 2 apart from least 15cm at the bottom of the pond of sea pond 1, PVC Small dimension circular hole 3.2 diameter that 30mm, PVC throw on feeding tube road 2 is respectively 1.5-2mm, the big a diameter of 2.5-of specification circular hole 3.1 3mm;Triode road 4 diameter is respectively 50-70mm;The diameter of main pipeline 8 and secondary canalization 5 is 70mm-100mm;At feedstuff The volume of reason groove 9 is 3-6m3
Above-mentioned Roots blower 6 blast of giving vent to anger is not less than 60kPa, power 10-20kw;Self priming pump 10 use ZW self-priming without Blocking pollution discharging pump, power is 3kw-8kw, and flow is not less than 10m3/h。
Utilize apostichopus japonicus culture automatization of the present utility model to throw the detailed description of the invention throwing feeding method raising device, throw the side of raising Method comprises the steps:
(1) throw and raise facility and arrange: throw raise device in the coastal this utility model above-mentioned apostichopus japonicus culture automatization that arranges;
(2) seed is thrown in: rises to 8 DEG C to water temperature at the beginning of 3 months by the end of February or time mid or late September water temperature is down to 21-23 DEG C, throws Putting the juvenile stichopus that specification is 10~15g/ heads, it is 40-50kg/ mu that seedling throws in density, during input, puts into seedling equipped with pendant 20 mesh opening polyethylene mesh bags of stone, throw near aquiculture mesh cage uniformly, sink to the bottom rear seedling and can climb up aquiculture mesh cage voluntarily Attachment;
(3) daily management: cultivating pool ensures that water quality is pure and fresh, changes water according to weather condition in good time, and each quantity of exchanged water is at least 20%, strengthen pond water Inversion phenomenon, the monitoring of dissolved oxygen water quality index simultaneously, note abnormalities and change water immediately, such as sea water salt during rainy season Spend low, stop changing water;Described water inlet and water outlet arrange 60-100 mesh purse seine and intercept fish, shrimp, Eriocheir sinensis and germling thereof, often Observe every 10-15 water all over the world, measure Radix Morinae Bulleyanae growing state;
(4) feeding method is thrown: annual by the end of February~in 4 months, October~December are the growth busy seasons of Northern Coastal Region Radix Morinae Bulleyanae, this Time appropriate mixed feed of need to throwing something and feeding to promote Radix Morinae Bulleyanae fast-growth, feeding volume by pond the 1%~3% of culturing stichopus japonicus gross weight, Threw something and fed every 3-5 days once, throw something and feed night 20:00~24:00 carry out, do not change water after throwing something and feeding 24 hours.Throw something and feed and do not changed the same day Water;First fixed measured mixed feed is added in described feedstuff treatment trough before throwing something and feeding, adds fresh water or sea water to peak level, Stir by stirring vane or the stirring rod being equipped with in feedstuff treatment trough after adding, can carry out after static fermentation 3~5h Throwing something and feeding, period of throwing something and feeding opens stirring vane or stirring rod prevents feedstuff precipitation, ensures that throwing is raised uniformly, after feedstuff feeding terminates, and institute Again add water in stating feedstuff treatment trough and the feedstuff liquid of residual in described PVC throwing feeding tube road is all gone out.
See Fig. 1, Fig. 2, utilize apostichopus japonicus culture automatization of the present utility model to throw the concrete reality throwing feeding method raising device Under executing such as:
(1) pond and adherance are arranged: at the coastal selection in Haiyang City, Yantai A, B, C tri-, apostichopus japonicus culture pond carries out this reality Raise the installation that arranges of facility with novel throwing, pond is silt substrate, and area is respectively A:20 mu, B:30 mu, C:40 mu, and the degree of depth is equal Be 2.5 meters, minimum depth be not less than 1.5 meters.At three, pond is east, west to entering draining, foster arranging along north-south at the bottom of pond Growing cylinder mould and do reefglider, cylinder mould is chosen as the holothruian cultures cylinder mould that China Patent No. is ZL 201120047278.6, after cylinder mould stretching Being fixed at the bottom of pond with polyethylene rope, line space is respectively A:3m, B:3.5m, C:4m.
(2) system is arranged: at cylinder mould 15cm at the bottom of near water inlet side, pond higher than pond, forward fixing PVC throws feeding tube Road, every 2 row cylinder moulds arrange 1 row, throw and are drilled with circular hole on feeding tube road, and spacing is 1m, and Circularhole diameter is divided into two kinds of specifications, wherein leans on 1/3 part that nearly pipeline central authorities connect at triode road is less, and remaining 2/3 part is relatively big, throws middle position, feeding tube road even for every 7 Connect an airtight triode road and lead to pool side, import and reconnect supervisor after entering, along pond, the secondary canalization that drainage direction is arranged Road, main pipeline arranges threeway, raises pump with throwing respectively and aeration blower fan is connected, be respectively provided with valve and open between threeway and two pump machines Close, the other end throwing feeding self priming pump is connected bottom supporting feedstuff treatment trough, and treatment trough is glass steel material, trench bottom in 10 degree of overturning angles, are equipped with stirring vane or stirring rod in groove.The throwing in three ponds is raised pipe diameter and is respectively A:20mm, B: 25mm, C:30mm, throw feeding tube road Circularhole diameter and be respectively A:1.5mm, 2mm, B:2mm, 2.5mm, C:2.5mm, 3mm;Triode Road diameter is respectively A:50mm, B:60mm, C:70mm;Main pipeline and secondary canalization diameter are respectively A:70mm, B:80mm, C: 100mm;Supporting feedstuff processes glass fibre reinforced plastic groove volume size and is respectively A:3m3, B:5m3, C:6m3
(3) pump machine type selecting: Roots blower blast of giving vent to anger is not less than 60kPa, three pond power selection are respectively A: 10kw, B:15kw, C:20kw.Throw something and feed in feedstuff the feature containing solid particle polluter according to Radix Morinae Bulleyanae, use ZW self-sucking non-blockage Dredge pump raises device as supporting throwing, and three pond power selection are respectively A:4kw, B:5.5kw, C:7.5kw, and flow is the most not Less than A:10m3/ h, B:15m3/ h, C:20m3/h.Throwing is raised and is inflated main pipeline and is respectively provided with controlled valve with pump machine junction, makes Used time switch valve as required, startup pump machine get final product the throwing that completes of uniform high-efficiency and raise and oxygenation work.
(4) seed is thrown in: by the end of February, water temperature at the beginning of 3 months rise to 8 DEG C or time mid or late September water temperature is down to 21-23 DEG C, throw in rule Lattice are the juvenile stichopus of 10~15g/ heads, and three pond seedlings are thrown in density and are respectively A:40kg/ mu, B:45kg/ mu, C: 50kg/ mu.During input, seedling being put into the 20 mesh opening polyethylene mesh bags equipped with dropstone, uniform input is attached at cylinder mould reefglider Closely, sink to the bottom rear seedling and can climb up the attachment of cylinder mould reefglider voluntarily.
(5) daily management: cultivating pool ensures that water quality is pure and fresh, changes water according to weather condition in good time, and each quantity of exchanged water is about 20%, strengthen the water quality index monitoring such as pond water Inversion phenomenon, dissolved oxygen simultaneously, note abnormalities and change water immediately, such as sea water during rainy season Salinity is too low, stops changing water.Enter at row, the mouth of a river, to arrange 80 mesh purse seines and intercept harmful animal and the germling thereof such as fish shrimp crab, every 10-15 Water is observed, is measured Radix Morinae Bulleyanae growing state all over the world.
(6) feeding method is thrown: annual by the end of February~in 4 months, October~December are the growth busy seasons of Northern Coastal Region Radix Morinae Bulleyanae, this Time appropriate mixed feed of need to throwing something and feeding to promote Radix Morinae Bulleyanae fast-growth, feeding volume by pond the 1%~3% of culturing stichopus japonicus gross weight, Threw something and fed every 3-5 days once, throw something and feed night 20:00~24:00 carry out, do not change water after throwing something and feeding 24 hours.First will be fixed before throwing something and feeding Measured mixed feed adds in the other supporting feedstuff treatment trough of pump machine, adds fresh water or sea water to peak level, after adding Stirring vane or stirring rod with being equipped with stir, and static fermentation 3~5h can be thrown something and fed later, and period of throwing something and feeding opens and stirs Mix blade or stirring rod prevents feedstuff precipitation, ensures that throwing is raised uniformly, after feedstuff feeding terminates, again add water throwing feeding tube road in groove The feedstuff liquid of interior residual is all gone out.
Use this utility model apostichopus japonicus culture automatization to throw the throwing feeding method raising device and raise Radix Morinae Bulleyanae growing state with artificial throwing Relatively, see table:
Certainly, described above is not to restriction of the present utility model, and this utility model is also not limited to the example above, this The those of ordinary skill of technical field, in essential scope of the present utility model, the change made, retrofits, adds or replaces, all Protection domain of the present utility model should be belonged to.

Claims (8)

1. apostichopus japonicus culture automatization throws and raises a device, and including sea pond, sea pond arranges water inlet and outlet, and it is special Levy and be, in described sea pond, do reefglider along entering drainage direction horizontally set aquiculture mesh cage, along aquiculture mesh cage near institute State water inlet side, higher than forward fixing some PVC throwing feeding tube roads, described PVC throwing at certain altitude at the bottom of the pond of sea pond Arranging circular hole on feeding tube road, described each PVC throws the airtight triode road of connection, middle position, feeding tube road and leads to sea pond limit, and Importing and enter the secondary canalization that drainage direction is arranged along pond, described secondary canalization reconnects one end of a main pipeline, described master The other end of pipeline connects self priming pump and Roots blower respectively by three-way valve, and the other end of described self priming pump is raised with supporting Connect bottom material treatment trough.
2. throw according to the apostichopus japonicus culture automatization described in claim 1 and raise device, it is characterised in that described feedstuff treatment trough is Glass steel material, the groove bottom of described feedstuff treatment trough is 8 °-15 ° inclinations, is equipped with stirring vane or stirring rod in groove.
3. throw according to the apostichopus japonicus culture automatization described in claim 1 or 2 and raise device, it is characterised in that described aquiculture mesh cage draws Be fixed at the bottom of the pond of sea pond after stretching with polyethylene rope, arrange between every 2 row aquiculture mesh cages 1 row PVC throw feeding tube road, every 7 PVC throws a piece airtight triode road of connection, middle position, feeding tube road and leads to sea pond limit.
4. throw according to the apostichopus japonicus culture automatization described in claim 1 or 2 and raise device, it is characterised in that in described sea pond Sea water advanced at least 150cm, described PVC to throw the circular hole spacing that feeding tube track pitch throws on feeding tube road from described PVC be 80- 120cm, described Circularhole diameter is divided into two kinds of specifications of size, and described PVC throws the circular hole in the length of middle position at least 1/3, feeding tube road For small dimension circular hole, it is big specification circular hole that described PVC throws remaining circular hole on feeding tube road.
5. throw according to the apostichopus japonicus culture automatization described in claim 3 and raise device, it is characterised in that the sea in described sea pond It is 80-120cm that water depth is at least the circular hole spacing that 150cm, described PVC throw on feeding tube road, and described Circularhole diameter is divided into size Two kinds of specifications, the circular hole that described PVC throws in the length of middle position at least 1/3, feeding tube road is small dimension circular hole, and described PVC throws feeding tube On road, remaining circular hole is big specification circular hole.
6. throw according to the apostichopus japonicus culture automatization described in claim 5 and raise device, it is characterised in that described PVC throws feeding tube track pitch Throw a diameter of 20-30mm in feeding tube road, described PVC from least 15cm at the bottom of the pond of sea pond, described PVC and throw the little rule on feeding tube road Lattice Circularhole diameter is respectively 1.5-2mm, and big specification Circularhole diameter is 2.5-3mm;Described triode road diameter is respectively 50- 70mm;Described main pipeline and a diameter of 70mm-100mm of secondary canalization;The volume of described feedstuff treatment trough is 3-6m3
7. throw according to the apostichopus japonicus culture automatization described in claim 1 or 2 and raise device, it is characterised in that described Roots blower Machine blast of giving vent to anger is not less than 60kPa, power 10-20kw;Described self priming pump uses ZW self-sucking non-plugging dredge pump, and power is 3kw- 8kw, flow is not less than 10m3/h。
8. throw according to the apostichopus japonicus culture automatization described in claim 6 and raise device, it is characterised in that described Roots blower goes out Gas blast is not less than 60kPa, power 10-20kw;Described self priming pump uses ZW self-sucking non-plugging dredge pump, and power is 3kw-8kw, Flow is not less than 10m respectively3/h。
CN201620410493.0U 2016-05-09 2016-05-09 Stichopus japonicus is bred automatic throwing and raises device Active CN205648729U (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105766756A (en) * 2016-05-09 2016-07-20 山东省海洋生物研究院 Stichopus japonicus pond culture feeding system and feeding method

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105766756A (en) * 2016-05-09 2016-07-20 山东省海洋生物研究院 Stichopus japonicus pond culture feeding system and feeding method

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