CN101836610A - Method for cultivating blue crabs with heavy shells on floating rafts - Google Patents
Method for cultivating blue crabs with heavy shells on floating rafts Download PDFInfo
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- CN101836610A CN101836610A CN201010179055A CN201010179055A CN101836610A CN 101836610 A CN101836610 A CN 101836610A CN 201010179055 A CN201010179055 A CN 201010179055A CN 201010179055 A CN201010179055 A CN 201010179055A CN 101836610 A CN101836610 A CN 101836610A
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Abstract
The invention relates to a method for cultivating blue crabs with heavy shells on floating rafts, comprising the following steps of: building the floating rafts on more than 1 mu of water surface or the surface of a water body with the depth greater than 1 meter and placing meshed cages or boxes with holes on the floating rafts, wherein the meshed cages or the boxes with holes are respectively filled with single crabs; building a bridge in the direction perpendicular to the floating rafts; installing an aerating device and a deflating device and a heavy balance weight on plastic pipes of the floating rafts; and then cultivating the crabs with the heavy shells. The invention has the advantages of high efficiency, large scale and low cost, can prevent the crabs from killing each other and reduce the risk of cultivation losses of the crabs with the heavy shells due to storms.
Description
Technical field
The invention belongs to aquaculture field, have the method that relates to a kind of cultivating blue crabs with heavy shells on floating rafts.
Background technology
Crab is typical case's representative of fresh and lively seafood.Heavy shell crab, the new shell that is exactly crab forms, but the crab of the shell soon that old shell is not sloughed off as yet.Though various crabs all have heavy shell crab, general heavy shell crab mainly refers to the heavy shell crab (the heavy shell crab of other kind, because not anti-storage and transportation, economic worth is little) of mud crab.Because old shell is soon sloughed off, so old shell is through decalcification, and is not hard in the past, is convenient to remove.After removing old shell, heavy shell crab and soft crab are very nearly the same, have the advantage similar with soft crab.But, the dried up back time-to-live of heavy shell crab the soft crab after more than shell long, be convenient to storage and transport.Guangdong (particularly Zhuhai) reaches Hong Kong, Macao, Taiwan, and the custom of arduous shell crab is always arranged, think that heavy shell crab has more nutrition than soft crab, so on the market, heavy shell crab valency is higher: the mud crab of 20-30 unit/jin, in case after becoming heavy shell crab, price just can rise to 50-80 unit/jin.
At present, all there is vast heavy shell crab market on ground such as the Zhuhai in Guangdong, Zhanjiang, and heavy shell crab is the characteristic cuisines in Zhuhai especially, and the heavy shell crab market of Guangdong and Hong Kong, Macao, Taiwan is good.Traditional heavy shell crab derives from the mud crab that results are gone on the market, and promptly when mud crab is gathered in the crops, the crab of shell soon in the mud crab is selected, and sells as heavy shell crab.But in the mud crab of results, it is heavy shell crab that the crab less than 10% is only arranged.This has just limited the output of heavy shell crab greatly.
Carry out re-shell blue crabs with the buoyant raft field and cultivate, can improve heavy shell crab ratio greatly.And heavy shell crab cultivation cost is low, the cultivation scale is big, is fit to Chinese raiser's large-scale farming.The liftable buoyant raft can be fallen in the water when stormy waves is attacked, and can reduce the infringement of stormy waves to buoyant raft.The method remarkable in economical benefits, can produce nearly 2,000 ten thousand yuan output value every year.
Summary of the invention
The purpose of this invention is to provide a kind of buoyant raft and cultivate the method for heavy shell crab, by the water surface more than 1 mu or the depth of water more than 1 meter water surface build buoyant raft, on buoyant raft, place cylinder mould of single crab or case with holes are housed respectively, high efficiency, extensive, the heavy shell crab of high viability ground cultivation (particularly open-air), can improve heavy shell crab greatly and cultivate efficient, also can reduce the cultivation cost.Install by the plastic tube of giving buoyant raft fill, means of deflation and sinker counterweight, come temporarily at storm, the buoyant raft submerged can be reduced the infringement of storm to buoyant raft, thereby reduce the risk that the heavy shell crab of typhoon or the multiple zone of storm is cultivated.
Technical scheme of the present invention: by the water surface more than 1 mu or the depth of water more than 1 meter water surface build buoyant raft, on buoyant raft, place cylinder mould of single crab or case with holes are housed respectively, have bridge on the buoyant raft, install for the plastic tube of buoyant raft to fill, means of deflation and sinker counterweight, cultivate heavy shell crab.
Described buoyant raft is to arrange along the length direction in pond, length is half of pond length, buoyant raft is made of the polyvinyl chloride pipe of 4 centimetres of diameters, a buoyant raft is generally interconnected by many 4 meters long polyvinyl chloride pipes, every row 3-6 root, form the 3-5 row and lay the case hurdle of crab case, the polyvinyl chloride pipeline two ends cover PVC hat, to prevent that water from entering, this floating drum length depends on the length scale in pond, buoyant raft is divided into each subsection of 110 * 110 centimetres, connects by a narrow wood (2.5 centimetres wide * 2.0 cm thicks * 110 centimeter length) binding, or wooden by replacing than the polyvinyl chloride tubule of being responsible for littler caliber.Wood or tubule are horizontal to tie up on the person in charge.Each can hold 4-6 crab case and arrange with the wooden part (joint) that separates, and promptly every row 4-6 case, 4 row are the 16-24 case altogether.
Described bridge is on the width in pond, builds a bridge that lid (or roof) arranged, and has the bridge of roof bridge to build the centre in pond in, and vertical with buoyant raft, across buoyant raft.150-180 centimetre wide at least on bridge floor.Length depends on the width in pond.The floor is overhead on 12 to 15 centimetres the water surface, and when being convenient to check heavy shell crab or feeding, buoyant raft passes through under wooden bridge, from one side to another side.
Described case is divided into base and cover.The pedestal parameter of case is 15-30 * 15-30 * 7-15 centimetre, and the parameter of the lid of case is 15-30 * 10-25 * 2-5 centimetre, put into crab after, case lid is firmly or is buckled on the pedestal.Cover bigger hole, be convenient to not open the shell that case lid comes feeding and checks crab.Crab individually is contained in the plastic box of perforation, and buoyant raft supports plastic box.
The rope of described pulling buoyant raft is a polyethylene rope, and an end is tied up being fixed on the timber of land, penetrates in the ring again.Encircle (respectively there are two row crab casees both sides) on the polyvinyl chloride pipe that is contained in buoyant raft central authorities.The other end ties up on the waddy of another utmost point.Guide rope with ring, rope guides buoyant raft, every 4-5 a ring is installed at interval.Another root rope ties up to two ends of polyvinyl chloride pipe buoyant raft, and passes wooden bridge, so that the motion of tractive buoyant raft.
Described buoyant raft lifting control is meant, the both sides at the buoyant raft two ends, and every the both sides of 4-5 interval raft, the sinker counterweight that high 10-50cm all is installed.The buoyant raft central lower is equipped with the water inlet pipe mouth and the air inlet mouth of pipe, on exhaust outlet and by-pass valve control are housed.Air inlet pipe and blast pipe are furnished with flexible pipe, on be connected with float.
Advantage of the present invention: the efficient height, scale is big, cost is low, can prevent killing each other, can reduce the infringement that storm counterweight shell crab is cultivated.
Description of drawings
Fig. 1 is a buoyant raft vertical view of the present invention;
Fig. 2 is buoyant raft vertical section figure of the present invention;
Fig. 3 is a buoyant raft cross-sectional view of the present invention;
Fig. 4 is buoyant raft lifting control piece figure of the present invention;
Fig. 5 is the cleithral bridge vertical section of the present invention figure;
Fig. 6 is that the heavy shell crab of the present invention is cultivated the pond vertical view.
Embodiment
Below, in conjunction with specific embodiments, the method for buoyant raft of the present invention being cultivated heavy shell crab is described further.
Embodiment 1
(1) buoyant raft 18 is arranged along the length direction in pond, and length is half of pond length.Buoyant raft 18 is made of the polyvinyl chloride pipe 6 of 4 centimetres of diameters, and a buoyant raft 18 is generally interconnected by many 4 meters long polyvinyl chloride pipes 6, and 5 of every rows form 4 row and lay the case hurdle of crab case 5 (width just a glance is seen the visual field in the past).Two ends, polyvinyl chloride pipe 6 road cover PVC hat 4, enter to prevent water.These buoyant raft 18 length depend on the length scale in pond.Buoyant raft 18 is divided into each subsection of 110 * 110 centimetres, connects 3 by a narrow wood (2.5 centimetres wide * 2.0 cm thicks * 110 centimeter length) binding, or wooden by replacing than the polyvinyl chloride tubule of being responsible for littler caliber.Wood or tubule are horizontal to tie up on the person in charge.Each can hold 6 crab casees 5 and arrange with the wooden part (joint) that separates, and promptly every row 6 casees, 4 row are totally 24 casees.
(2) on the width in pond, build a bridge 21 that lid (or roof 24) arranged, there is the bridge 21 on roof 24 to build the centre in pond in, and vertical with buoyant raft 18, across buoyant raft 18.Bridge floor 21 has 160 centimetres wide.Length depends on the width in pond.The floor is overhead on 12 centimetres the water surface, and when being convenient to check heavy shell crab or feeding, buoyant raft 18 passes through for 21 times from wooden bridge, from one side 27 to another side 27.
(3) mud crab (50-250 gram) individually is contained in the plastic box with holes 5.Case 5 is divided into base and cover.The pedestal parameter of case is 21.5 * 15.5 * 9.0 centimetres, and the parameter of the lid of case is 21.5 * 15.5 * 2.5 centimetres.After putting into crab, case lid ties up on the pedestal firmly.Cover bigger hole, be convenient to not open case lid and come feeding and check whether crab weighs shell.Crab is contained in 5 li of plastic boxes, and buoyant raft 18 supports plastic box 5.
(4) end of polyethylene rope 1 is tied up on the timber 26 that is fixed on the land, penetrates in the ring again.Encircle (respectively there are two row crab casees 5 both sides) on the polyvinyl chloride pipe 6 that is contained in buoyant raft 18 central authorities.The other end ties up on the timber 26 of another utmost point.Guide rope 1 with ring, rope 1 guides buoyant raft 18, every 4 intervals a ring is installed.Another root rope 8 ties up to two ends of polyvinyl chloride pipe 6 buoyant rafts 18, and passes wooden bridge 21, so that 18 motions of tractive buoyant raft.
(5) 13 mouthfuls of 12 mouthfuls of water inlet pipes and air inlet pipe are equipped with in buoyant raft 18 centre bottoms, and blast pipe 9 is housed above.By-pass valve control 10 all is housed on each mouth of pipe.
(6) fishing for mud crab from the field does not also finish the crab of reproduction shell and does the crab kind.The crab kind is transported to heavy shell crab cultivates the field, put into crab case 5.5% bait throwing in by the crab body weight in per 2 days, the bait throwing in time is early morning.Cultivating pond pH is 7.5-8.8, and dissolved oxygen is more than the 5mg/L.Salinity is 20.Temperature is 25-29 ℃.Every 2 days, whether once to check heavy shell of crab or death.During inspection, the scrutineer is sitting on the bridge 21, and pulling traction rope 8 pursues case 5 with buoyant raft 18 from a side of bridge 21 and is pulled to opposite side.When crab case 5 passes through bridge 21, check survival condition and the heavy shell situation of every case 5 crabs successively.When crab was dead, the crab of checkmating in time cleaned out, and handles.When finding that crab weighs shell, will weigh the shell crab and take out, live body is preserved more than 5 days for selling.
Embodiment 2
(1) buoyant raft 18 is arranged along the length direction in pond, and length is half of pond length.Buoyant raft 18 is made of the polyvinyl chloride pipe 6 of 6 centimetres of diameters, and a buoyant raft 18 is generally interconnected by many 4 meters long polyvinyl chloride pipes 6, and 5 of every rows form 4 row and lay the case hurdle of crab case 5 (width just a glance is seen the visual field in the past).Two ends, polyvinyl chloride pipe 6 road cover polyvinyl chloride pipe cap 4, enter to prevent water.These buoyant raft 18 length depend on the length scale in pond.Buoyant raft 18 is divided into each subsection of 110 * 110 centimetres, connects 3 by a narrow wood (2.5 centimetres wide * 2.0 cm thicks * 110 centimeter length) binding, or wooden by replacing than the polyvinyl chloride tubule of being responsible for littler caliber.Wood or tubule are horizontal to tie up on the person in charge.Each can hold 6 crab casees 5 and arrange with the wooden part (joint) that separates, and promptly every row 6 casees, 4 row are totally 24 casees.
(2) on the width in pond, build a bridge 21 that lid (or roof 24) arranged, there is the bridge 21 on roof 24 to build the centre in pond in, and vertical with buoyant raft 18, across buoyant raft 18.Bridge floor 21 has 160 centimetres wide.Length depends on the width in pond.The floor is overhead on 15 centimetres the water surface, and when being convenient to check heavy shell crab or feeding, buoyant raft 18 passes through for 21 times from wooden bridge, from one side 27 to another side 27.
(3) mud crab (50-250 gram) individually is contained in the plastic box with holes 5.Case 5 is divided into base and cover.The pedestal parameter of case is 21.5 * 15.5 * 9.0 centimetres, and the parameter of the lid of case is 21.5 * 15.5 * 2.5 centimetres.After putting into crab, case 5 lids tie up on the pedestal firmly.Cover bigger hole.Mud crab is contained in 5 li of plastic boxes, and buoyant raft 18 supports plastic box 5.
(4) end of polyethylene rope 1 is tied up on the timber 26 that is fixed on the land, penetrates in the ring again.Encircle (respectively there are two row crab casees 5 both sides) on the polyvinyl chloride pipe 6 that is contained in buoyant raft 18 central authorities.The other end ties up on the timber 26 of another utmost point.Guide rope 1 with ring, rope 1 guides buoyant raft 18, every 4 intervals a ring is installed.Another root rope 8 ties up to two ends of pvc pipe buoyant raft 18, and passes wooden bridge 21, so that 18 motions of tractive buoyant raft.
(5) 13 mouthfuls of 12 mouthfuls of water inlet pipes and air inlet pipe are equipped with in buoyant raft 18 centre bottoms, and blast pipe 9 is housed above.By-pass valve control 10 all is housed on each mouth of pipe.
(6) fishing for mud crab from the field does not also finish the crab of reproduction shell and does the crab kind.The crab kind is transported to heavy shell crab cultivates the field, put into crab case 5.10% bait throwing in by the crab body weight in per 3 days, the bait throwing in time is at dusk.Cultivating pond pH is 7.5-8.5, and dissolved oxygen is more than the 5mg/L.Water temperature 23-28 ℃.Salinity is 30.Every 3 days, whether once to check heavy shell of crab or death.During inspection, the scrutineer is sitting on the bridge 21, and pulling traction rope 8 pursues case 5 with buoyant raft 18 from a side of bridge 21 and is pulled to opposite side.When crab case 5 passes through bridge 21, check survival condition and the shell situation of every case 5 crabs successively.When crab was dead, the crab of checkmating in time cleaned out, and handles.When finding that crab weighs shell, will weigh the shell crab and take out, dried up preservation is for sale.
(1) buoyant raft 18 is arranged along the length direction in pond, and length is half of pond length.Buoyant raft 18 is made of the polyvinyl chloride pipe 6 of 7 centimetres of diameters, and a buoyant raft 18 is generally interconnected by many 4 meters long pvc pipes 6, and 5 of every rows form 4 row and lay the case hurdle of crab case 5 (width just a glance is seen the visual field in the past).Polyvinyl chloride pipe 6 two ends cover PVC hat 4, enter to prevent water.These buoyant raft 18 length depend on the length scale in pond.Buoyant raft 18 is divided into each subsection of 110 * 110 centimetres, connects 3 by a narrow wood (2.5 centimetres wide * 2.0 cm thicks * 110 centimeter length) binding, or wooden by replacing than the polyvinyl chloride tubule of being responsible for littler caliber.Wood or tubule are horizontal to tie up on the person in charge.Each can hold 6 crab casees 5 and arrange with the wooden part (joint) that separates, and promptly every row 6 casees, 4 row are totally 24 casees.
(2) on the width in pond, build a bridge 21 that lid (or roof 24) arranged, there is the bridge 21 on roof 24 to build the centre in pond in, and vertical with buoyant raft 18, across buoyant raft 18.Bridge floor 21 has 180 centimetres wide.Length depends on the width in pond.The floor is overhead on 15 centimetres the water surface, and when being convenient to check heavy shell crab or feeding, buoyant raft 18 passes through for 21 times from wooden bridge, from one side 27 to another side 27.
(3) mud crab (50-250 gram) individually is contained in the plastic box with holes 5.Case is divided into base and cover.The pedestal parameter of case is 21.5 * 15.5 * 9.0 centimetres, and the parameter of the lid of case is 21.5 * 15.5 * 2.5 centimetres.After putting into crab, case lid ties up on the pedestal firmly.Cover bigger hole.Mud crab is contained in 5 li of plastic boxes, and buoyant raft 18 supports plastic box 5.
(4) end of polyethylene rope 1 is tied up on the timber 26 that is fixed on the land, penetrates in the ring again.Encircle (respectively there are two row crab casees 5 both sides) on the polyvinyl chloride pipe 6 that is contained in buoyant raft 18 central authorities.The other end ties up on the timber 26 of another utmost point.Guide rope 1 with ring, rope 1 guides buoyant raft 18, every 5 intervals a ring is installed.Another root rope 8 ties up to two ends of polyvinyl chloride pipe buoyant raft 18, and passes wooden bridge 21, so that 18 motions of tractive buoyant raft.
(5) both sides at buoyant raft 18 two ends, and every the both sides of 4 interval rafts, sinker 11 counterweights that high 30cm all is installed.13 mouthfuls of 12 mouthfuls of water inlet pipes and air inlet pipe are equipped with in buoyant raft 18 centre bottoms, and blast pipe 9 is housed above.By-pass valve control 10 all is housed on each mouth of pipe.Air inlet pipe 13 and blast pipe 9 are furnished with flexible pipe, cartridge control valve door 10 on the flexible pipe.Be connected with float 25 on the flexible pipe.
(6) fishing for mud crab from the field does not also finish the crab of reproduction shell and does the crab kind.The crab kind is transported to heavy shell crab cultivates the field, put into crab case 5.10% bait throwing in by the crab body weight in per 2 days, the bait throwing in time is early morning or dusk.Cultivating pond pH is 7.0-8.2, and dissolved oxygen is more than the 5mg/L.Salinity 15.Temperature 25-30 ℃.Every 5 days, whether once to check heavy shell of crab or death.During inspection, the scrutineer is sitting on the bridge 21, and pulling traction rope 8 pursues case 5 with buoyant raft 18 from a side of bridge 21 and is pulled to opposite side.When crab case 5 passes through bridge 21, check survival condition and the heavy shell situation of every case 5 crabs successively.When crab was dead, the crab of checkmating in time cleaned out, and handles.When finding that crab weighs shell, will weigh the shell crab and take out, dried up preservation is for sale.
(7) before storm arrives, mix flexible pipe and sinker 11 for buoyant raft 18, the crab case 5 that each is with holes ties up on the polyvinyl chloride pipe 6, the gas of 6 li of polyvinyl chloride pipes is drained, with buoyant raft 18 submergeds.After storm, close valve 10 on the exhaust hose 14, with pressure-air, be pressed in the polyvinyl chloride pipe 6 through air induction hose 15, water is drained, make buoyant raft 18 rise to the water surface, carry out normally heavy shell crab and cultivate.
(1) buoyant raft 18 is arranged along the length direction in pond, and length is half of pond length.Buoyant raft 18 is made of the polyvinyl chloride pipe 6 of 6 centimetres of diameters, and a buoyant raft 18 is generally interconnected by many 4 meters long polyvinyl chloride pipes 6, and 5 of every rows form 4 row and lay the case hurdle of crab case 5 (width just a glance is seen the visual field in the past).Polyvinyl chloride pipe 6 two ends cover PVC hat 4, enter to prevent water.These buoyant raft 18 length depend on the length scale in pond.Buoyant raft 18 is divided into each subsection of 110 * 110 centimetres, connects 3 by a narrow wood (2.5 centimetres wide * 2.0 cm thicks * 110 centimeter length) binding, or wooden by replacing than the polyvinyl chloride tubule of being responsible for littler caliber.Wood or tubule are horizontal to tie up on the person in charge.Each can hold 6 crab casees 5 and arrange with the wooden part (joint) that separates, and promptly every row 6 casees, 4 row are totally 24 casees.
(2) on the width in pond, build a bridge 21 that lid (or roof 24) arranged, there is the bridge 21 on roof 24 to build the centre in pond in, and vertical with buoyant raft 18, across buoyant raft 18.Bridge floor 21 has 170 centimetres wide.Length depends on the width in pond.The floor is overhead on 12 centimetres the water surface, and when being convenient to check heavy shell crab or feeding, buoyant raft 18 passes through under wooden bridge, from one side 27 to another side 27.
(3) mud crab (50-250 gram) individually is contained in the plastic box with holes 5.Case 5 is divided into base and cover.The pedestal parameter of case is 21.5 * 15.5 * 9.0 centimetres, and the parameter of the lid of case is 21.5 * 15.5 * 2.5 centimetres.After putting into crab, case lid ties up on the pedestal firmly.Cover bigger hole.Crab is contained in 5 li of plastic boxes, and buoyant raft 18 supports plastic box 5.
(4) end of polyethylene rope 1 is tied up on the timber 26 that is fixed on the land, penetrates in the ring again.Encircle (respectively there are two row crab casees 5 both sides) on the polyvinyl chloride pipe 6 that is contained in buoyant raft 18 central authorities.The other end ties up on the timber 26 of another utmost point.Guide rope 1 with ring, rope 1 guides buoyant raft 18, every 5 intervals a ring is installed.Another root rope 8 ties up to two ends of polyvinyl chloride pipe buoyant raft 18, and passes wooden bridge 21, so that 18 motions of tractive buoyant raft.
(5) both sides at buoyant raft 18 two ends, and every the both sides of 5 interval rafts, sinker 11 counterweights that high 30cm all is installed.13 mouthfuls of 12 mouthfuls of water inlet pipes and air inlet pipe are equipped with in buoyant raft 18 centre bottoms, and blast pipe 9 is housed above.By-pass valve control 10 all is housed on each mouth of pipe.Air inlet pipe 13 and blast pipe 9 are furnished with flexible pipe, cartridge control valve door 10 on the flexible pipe.Be connected with float 25 on the flexible pipe.
(6) fishing for mud crab from the field does not also finish the crab of reproduction shell and does the crab kind.The crab kind is transported to heavy shell crab cultivates the field, put into crab case 5.Per 3 days by 10% bait throwing in of crab body weight once, and the bait throwing in time is early morning or at dusk.Cultivating pond pH is 7.0-8.0, and dissolved oxygen is more than the 5mg/L.Water temperature, salinity are different according to the difference of crab.Salinity is 10.Between temperature 20-30 ℃.Every 2 days, whether once to check crab shell or death.During inspection, the scrutineer is sitting on the bridge 21, and pulling traction rope 8 pursues case 5 with buoyant raft 18 from a side of bridge 21 and is pulled to opposite side.When crab case 5 passes through bridge 21, check survival condition and the shell situation of every case 5 crabs successively.When crab was dead, the crab of checkmating in time cleaned out, and handles.When finding that crab weighs shell, will weigh the shell crab and take out, dried up preservation is for sale.
(7) before storm arrives, mix flexible pipe and sinker 11 for buoyant raft 18, the crab case 5 that each is with holes ties up on the polyvinyl chloride pipe 6, the gas of 6 li of polyvinyl chloride pipes is drained, with buoyant raft 18 submergeds.After storm, close valve 10 on the exhaust hose 14, with pressure-air, be pressed in the polyvinyl chloride pipe 6 through air induction hose 15, water is drained, make buoyant raft 18 rise to the water surface, carry out normally heavy shell crab and cultivate.
Claims (6)
1. a buoyant raft is cultivated the method that weighs the shell crab, it is characterized in that by the water surface more than 1 mu or the depth of water more than 1 meter water surface build buoyant raft (18), go up placement at buoyant raft (18) cylinder mould (5) of single crab or case (5) with holes are housed respectively, have bridge (21) on the buoyant raft (18), install for the plastic tube of buoyant raft (18) to fill, means of deflation and sinker (11) counterweight, cultivate heavy shell crab.
2. the method for cultivating heavy shell crab according to the described buoyant raft of claim 1 is characterized in that the length direction arrangement of buoyant raft (18) along the pond, and length is half of pond length; Buoyant raft (18) is made of the polyvinyl chloride pipe (6) of 4 centimetres of diameters, a buoyant raft (18) is generally interconnected by many 4 meters long polyvinyl chloride pipes (6), every row 3-6 root, form the 3-5 row and lay the case hurdle of crab case (5), polyvinyl chloride pipe (6) two ends cover PVC hat (4), to prevent that water from entering, this floating drum length depends on the length scale in pond, buoyant raft (18) is divided into each subsection of 110 * 110 centimetres, wood binding by wooden 2.5 centimetres wide * 2.0 cm thicks * 110 centimeter length connects (3), or it is wooden by replacing than the polyvinyl chloride tubule of being responsible for littler caliber, wood or tubule are horizontal to tie up on the person in charge, each is a joint with the wooden part that separates, and can hold 4-6 crab case (5) and arrange promptly every row 4-6 case, 4 row are the 16-24 case altogether.
3. cultivate the method that weighs the shell crab according to the described buoyant raft of claim 1, it is characterized in that on the width in pond build a bridge (21) that lid arranged, bridge (21) is built the centre in pond in, and it is vertical with buoyant raft (18), across buoyant raft (18), bridge floor (21) 150-180 centimetre wide at least, length depends on the width in pond, the floor is overhead on 12 to 15 centimetres the water surface, when being convenient to check heavy shell crab or feeding, buoyant raft (18) passes through under wooden bridge (21), from (27) on one side to another side (27).
4. cultivate the method that weighs the shell crab according to the described buoyant raft of claim 1, it is characterized in that crab individually is contained in the plastic box of perforation (5), case (5) is divided into base and cover, the pedestal parameter of case is 15-30 * 10-25 * 7-15 centimetre, the parameter of the lid of case is 15-30 * 10-25 * 2-5 centimetre, after putting into crab, case lid ties up on the pedestal firmly, cover bigger hole, be convenient to not open the shell that case lid comes feeding and checks crab, crab is contained in plastic box (5) lining, and buoyant raft (18) supports plastic box (5).
5. cultivate the method that weighs the shell crab according to the described buoyant raft of claim 1, an end that it is characterized in that polyethylene rope (1), tie up and be fixed on the timber of land (26), penetrate in the ring again, ring is contained on the polyvinyl chloride pipe (6) of buoyant raft (18) central authorities, respectively there are two row's crab casees (5) both sides, the other end ties up on the timber (26) of another utmost point, guide rope (1) with ring, rope (1) guides buoyant raft (18), at interval a ring is installed every 4-5, and another root rope (8) ties up to two ends of polyvinyl chloride pipe buoyant raft (18), and pass wooden bridge (21), so that tractive buoyant raft (18) motion.
6. cultivate the method that weighs the shell crab according to the described buoyant raft of claim 1, the both sides that it is characterized in that buoyant raft (18) two ends, reach both sides every 4-5 interval raft, sinker (11) counterweight of high 10-50cm all is installed, and buoyant raft (18) central lower is equipped with water inlet pipe (12) mouth, air inlet pipe (13) mouth and by-pass valve control (10), on blast pipe (9) mouthful and by-pass valve control (10) are housed, air inlet pipe (13) and blast pipe (9) are furnished with flexible pipe, and by-pass valve control (10) is housed on the flexible pipe, on be connected with float (25).
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| CN102885000A (en) * | 2012-09-06 | 2013-01-23 | 宁波大学 | Machine for throwing baits to feed crabs raised in monomer frame |
| CN102893931A (en) * | 2012-08-15 | 2013-01-30 | 中国水产科学研究院东海水产研究所 | Crab cage culture module with connecting device and system thereof |
| CN103053458A (en) * | 2013-01-16 | 2013-04-24 | 潘少波 | Ecological breeding method of scylla serrata |
| CN107593567A (en) * | 2017-10-25 | 2018-01-19 | 广西红树林研究中心 | Combined type plank road blue crab cultivation device |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101161063B (en) * | 2007-11-23 | 2011-06-22 | 蒋荣响 | Artificial breeding method of sabot blue crab |
| CN201160430Y (en) * | 2008-02-04 | 2008-12-10 | 厦门大学 | Intermediate cultivation apparatus for juvenile blue crab |
| CN101347106B (en) * | 2008-08-26 | 2011-04-27 | 宁波市海洋与渔业研究院 | Stereo fine cultivation technique of shrimp, crab and shellfish in sea water pond |
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2010
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102893931A (en) * | 2012-08-15 | 2013-01-30 | 中国水产科学研究院东海水产研究所 | Crab cage culture module with connecting device and system thereof |
| CN102893931B (en) * | 2012-08-15 | 2014-05-14 | 中国水产科学研究院东海水产研究所 | Crab cage culture module with connecting device and system thereof |
| CN102885000A (en) * | 2012-09-06 | 2013-01-23 | 宁波大学 | Machine for throwing baits to feed crabs raised in monomer frame |
| CN102885000B (en) * | 2012-09-06 | 2014-08-13 | 宁波大学 | Machine for throwing baits to feed crabs raised in monomer frame |
| CN103053458A (en) * | 2013-01-16 | 2013-04-24 | 潘少波 | Ecological breeding method of scylla serrata |
| CN103053458B (en) * | 2013-01-16 | 2014-03-26 | 潘少波 | Ecological breeding method of scylla serrata |
| CN107593567A (en) * | 2017-10-25 | 2018-01-19 | 广西红树林研究中心 | Combined type plank road blue crab cultivation device |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101836610B (en) | 2012-02-29 |
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