CN107581131B - Factory circulating water culture system and method for pearl shells - Google Patents
Factory circulating water culture system and method for pearl shells Download PDFInfo
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- CN107581131B CN107581131B CN201710856487.7A CN201710856487A CN107581131B CN 107581131 B CN107581131 B CN 107581131B CN 201710856487 A CN201710856487 A CN 201710856487A CN 107581131 B CN107581131 B CN 107581131B
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Abstract
The invention discloses a pearl oyster factory circulating water culture system and a pearl oyster factory circulating water culture method, wherein the culture system comprises more than two bait culture ponds, more than one shellfish culture pond and a water return tank; each bait cultivating pool is communicated with the water return tank through a bait supply pipe, and an inlet of the bait supply pipe is positioned on the upper layer of the water body of the bait cultivating pool, so that the upper-layer water body rich in unicellular algae bait flows into the water return tank through the bait supply pipe; the water return tank is communicated with each shellfish culture pond through a bait distribution pipe, a water pump is arranged in the water return tank, the water pump is connected with an inlet of the bait distribution pipe, and an outlet of the bait distribution pipe leads to each shellfish culture pond after the bait distribution pipe is forked; the shellfish culture ponds are communicated with each other through communicating pipes and are communicated with the bait culture ponds through return pipes; the bottom of each shellfish culture pond is also provided with a drain pipe, and the outlet of the drain pipe is communicated with the outside of the culture system. The culture system can ensure sufficient and stable bait supply, so that the growth environment of the shellfish can be controlled, and the culture operation is convenient.
Description
Technical Field
The invention relates to the field of aquaculture, in particular to an industrial circulating water aquaculture system and an aquaculture method for pearl shells.
Background
The pearl oyster has a long culture history in China, and because the pearls cultured in the south China sea have the characteristics of heavy set, firmness, perfect roundness, clearness, luster, durability and the like and are well known in the international market for a long time, the culture of the pearl oyster also once becomes one of the support industries in parts of coastal areas such as Guangdong, guangxi, south China sea and the like. Subsequently, due to the gradual aggravation of offshore pollution, the aging of a culturing farm, the serious damage of plant diseases and insect pests, frequent natural disasters and the like, the culturing area of the pearl shells faces continuous atrophy, the problem of high mortality rate of certain large pearl shells such as large pearl shells, nacres and penguin pearl shells in the natural sea area is not solved, and the natural sea area culturing of the large pearl shells almost disappears. The traditional offshore culturing mode of pearl shells is difficult to maintain continuously, and especially large pearl shells such as pinctada maxima, pinctada maxima and pteria penguin have extremely strict requirements on culturing environment and culturing conditions. Because the pearl shellfish filter feeding characteristics are limited, the normal growth and survival of the pearl shellfish are difficult to maintain for a long time in the current roadbed pond culture mode, so a set of culture system capable of maintaining the bait supply and the stable culture environment for a long time is needed to meet the growth requirement of the pearl shellfish.
Disclosure of Invention
The technical problem to be solved by the invention is as follows: the pearl oyster factory circulating water culture system can ensure sufficient and stable bait supply, enables the growth environment of the pearl oyster to be controllable, and is convenient to culture and operate.
The invention also provides a culture method using the culture system.
In order to solve the technical problems, the technical scheme adopted by the invention is as follows: an industrial recirculating aquaculture system for pearl shells is characterized in that: comprises more than two bait culture ponds, more than one shellfish culture pond and a backwater tank;
each bait cultivating pool is communicated with the water return tank through a bait supply pipe, and an inlet of the bait supply pipe is positioned at the upper layer of the water body of the bait cultivating pool, so that the upper layer water body rich in unicellular algae bait flows into the water return tank through the bait supply pipe;
the water return tank is communicated with the shellfish culture ponds through bait distribution pipes, a water pump is arranged in the water return tank and is connected with inlets of the bait distribution pipes, and outlets of the bait distribution pipes are communicated with the shellfish culture ponds after the bait distribution pipes are forked;
the shellfish culture ponds are communicated with each other through communicating pipes and are communicated with the bait culture ponds through return pipes;
and a drain pipe is also arranged at the bottom of each shellfish culture pond, and an outlet of the drain pipe is communicated with the outside of the culture system.
The bait and the pearl oyster of the culture system are separately cultured, and the environment is simply and effectively controlled; each bait culture pond can independently culture baits, and a plurality of bait culture ponds can alternately provide baits for the shellfish culture ponds so as to ensure sufficient and stable bait supply; the bait culture pond is communicated with the shellfish culture pond to form a loop, so that the water body of the whole culture system can circularly flow, and the utilization rate of bait is high; in addition, the bait in each bait culture pond is transferred to the water return tank and then distributed to each shellfish culture pond, only one water pump is needed in the process, and the position transfer of the pump is not involved, so that the operation is convenient; and the sewage discharge pipe is used for regularly discharging dirt such as excrement deposited at the bottom of the shellfish culture pond, so that the culture system can maintain the long-term stability of culture conditions.
In the aspect of bait supply control of the bait culture pond, the scheme adopted by the invention is as follows: the pond is cultivated to bait has separation pipe one immediately, and separation pipe one upper portion pipe wall is opened has a plurality of separation holes, return flume is middle standing has water level pipe one, and separation pipe one passes through a connecting pipe intercommunication with water level pipe lower extreme mouth of pipe, constitutes the intercommunication one the pond is cultivated to bait with the return flume supply bait pipe, just water level pipe one with a connecting pipe swing joint, the accessible operation whether water level pipe control supplies bait and control through supplying bait pipe the water level of return flume.
Communicating pipe still is used as simultaneously the blow off pipe, shellfish culture pond bottom of the pool longitudinal section is "U" shape, bury each communicating pipe it has a plurality of blowoff holes, and each to open on the pipe wall shellfish culture pond "U" shape bottom, communicating pipe in the pond communicates each other, the wet return import with communicating pipe links to each other, and the export accesss to each bait culture pond, swing joint water level pipe two, communicating pipe has simultaneously and stretches out the outer export of farming systems to at this export swing joint water level pipe three.
In the aspect of water body replacement of the bait culture pond, the scheme adopted by the invention is as follows: each the pond is cultivated to bait all is equipped with the water changing pipe, the water changing pipe import is close to bottom of the pool is cultivated to bait, and the export accesss to outside the farming systems, the water changing pipe specifically by stand in the separation pipe two in pond is cultivated to bait is located the outer water level pipe four of farming systems, and the intercommunication separation pipe two constitutes with four orificial connecting pipes of lower extreme of water level pipe, two lower part pipe walls of separation pipe are opened there are a plurality of separation holes, water level pipe four with two swing joint of connecting pipe.
The invention recommends the following layout mode: in a large culture pond, 9 independent small water ponds are separated by a 'groined' partition wall, 1 small water pond in the middle is used as a water return tank, the small water ponds at 4 corners are used as bait culture ponds, and the other 4 small water ponds are used as shellfish culture ponds. The layout mode not only can effectively utilize the area of the culture pond and simplify the laying of pipelines in the culture pond, but also is favorable for forming a coordinated supply and demand relationship according to the configuration ratio of the bait culture pond and the shellfish culture pond.
The outlet of the bait separating pipe is also sleeved with a filter bag for filtering zooplankton and the like, and the filter bag can select about 300 meshes so as to further control the quality of culture water in the shellfish culture pond.
The other purpose of the invention is realized by the following technical scheme: an industrial recirculating aquaculture method for pearl oyster comprises the following steps:
bait is independently cultured in each bait culturing pond;
hanging and culturing pearl shells in the shellfish culture pond;
alternately providing baits for the pearl shells in the shellfish culture pond by adopting the bait culture pond, wherein each time:
enabling water rich in bait on the upper layer of the water body in a certain bait cultivating pool to flow into the water return tank through the bait supply pipe;
the water in the water return tank is pumped by the water pump and is sent into a certain shellfish culture pond through the bait distribution pipe, so that the bait is added into the shellfish culture pond from the upper layer, and in the process that the water in the water return tank is continuously added into the shellfish culture pond under the action of the water pump, the water in the shellfish culture pond flows back to the bait culture pond through the communicating pipe and the water return pipe, thereby realizing the separate culture of the bait and the pearl oyster and the recycling of the bait;
and periodically discharging dirt such as pearl oyster feces and the like precipitated at the bottom of the shellfish culture pond out of the culture system through the drainage pipe, so that the culture system can maintain the long-term stability of culture conditions.
The method further comprises the steps of:
controlling the water pumping amount of the water pump so as to control the bait feeding amount.
The method further comprises the steps of:
and discharging water in a certain bait culture pond under the condition that the water quality of the bait culture pond is aged and the bait is reduced and can not be normally supplied, then adding new water to cultivate the bait again, and feeding the pearl oyster in the shellfish culture pond by using the baits in other bait culture ponds in the process.
Compared with the prior art, the invention has the following beneficial effects:
1) The bait and the pearl oyster of the culture system are separately cultured, and the environment is simply and effectively controlled; each bait culture pond can independently culture baits, and a plurality of bait culture ponds can alternately provide baits for the shellfish culture ponds so as to ensure sufficient and stable bait supply; the sewage discharge pipe can be used for regularly discharging dirt such as excrement deposited at the bottom of the shellfish culture pond, so that the culture system can maintain the long-term stability of culture conditions; the conditions enable the culture system to maintain the normal growth and survival requirements of the pearl shells for a long time, so that the culture system is very suitable for culturing the large-scale pearl shells, particularly large-scale pearl shells with extremely strict requirements on culture environment and culture conditions, such as pinctada maxima, and the like; in addition, the bait culture pond of the culture system is communicated with the shellfish culture pond to form a loop, so that the water body of the whole culture system is recycled, and the utilization rate of the bait is high; in addition, the culture system firstly transfers the baits in the bait culture ponds to the water return tank and then distributes the baits to the shellfish culture ponds, only one water pump is needed in the process, the position transfer of the pump is not involved, and the operation is convenient;
2) The layout mode of the water pool in the culture system can not only effectively utilize the area of the culture pool and ensure that the laying of pipelines in the culture pool is simple, but also is favorable for forming a coordinated supply-demand relationship according to the configuration ratio of the bait culture pool and the shellfish culture pool;
3) The invention applies a large number of movably connected water level pipes at two ends of pipelines communicating different pools of the culture system, and by utilizing the water level pipes, whether water flows or not can be conveniently controlled, and the water level can be directly preset by adjusting the inclination degree and the like of the water level pipes, so that the operation is convenient;
4) The longitudinal section of the bottom of the shellfish culture pond is U-shaped, so that the collection and discharge of the excrements of the pearl shells are facilitated, and the cleaning work in the culture process is reduced; in addition, the culture system directly utilizes the communicating pipe as a blow-off pipe, thereby simplifying the pipeline;
5) The method for cultivating the pearl shells has the advantages that the bait and the pearl shells are separately cultivated, the control on the cultivation environment is facilitated, the bait is alternately provided for the shellfish cultivation ponds by the plurality of bait cultivation ponds, the sufficient and stable bait supply is ensured, the dirt such as the excrement of the pearl shells and the like at the bottom of the shellfish cultivation ponds is regularly discharged, and the long-term stability of the cultivation conditions can be maintained, so that the method for cultivating the pearl shells can maintain the normal growth and survival requirements of the pearl shells for a long time, and is particularly suitable for cultivating the pearl shells, especially large-scale pearl shells which have strict requirements on the cultivation environment and the cultivation conditions, such as the large pearl shells, the penguin pearl shells and the like;
6) The breeding method of the invention recycles the bait, which is beneficial to improving the utilization rate of the bait;
7) The cultivation method can conveniently control the bait feeding amount by controlling the bait extraction amount of the water pump, thereby providing the optimal bait concentration for the cultivation of the pearl oyster.
Drawings
FIG. 1 is a schematic view of the overall structure of an industrial recirculating aquaculture system for pearl oyster according to the present invention;
FIG. 2 is a perspective view showing a schematic structure of one shellfish culture pond A in FIG. 1;
fig. 3 is a perspective view schematically showing the structure of the water returning tank 3 in fig. 1.
Detailed Description
The invention is described in further detail below with reference to the following figures and specific examples:
example one
As shown in figures 1-3, the pearl oyster industrial circulating water culture system comprises a bait culture pond 1, a shellfish culture pond 2 and a water return tank 3. Their layout is as follows: in a large culture pond, 9 independent small water ponds are separated by a 'shaft' -shaped partition wall, 1 small water pond in the middle is used as a water return tank 3,4 small water ponds at corners are used as bait culture ponds 1, and the other 4 small water ponds are used as shellfish culture ponds 2. The bait and the pearl oyster are cultured in separate water tanks, and the environment is controlled simply and effectively. Each of the 4 bait culture ponds 1 can be used for independently culturing baits, and the bait culture ponds 1 can alternately provide baits for the shellfish culture ponds, so that sufficient and stable bait supply is ensured. The layout mode of the water pool in the culture system not only can effectively utilize the area of the culture pool and ensure that the pipeline in the culture pool is simply laid, but also is favorable for forming a coordinated supply and demand relationship by the configuration ratio of the bait culture pool and the shellfish culture pool.
The shellfish culture ponds 2 are communicated through a communicating pipe 4, the communicating pipe 4 is composed of two criss-cross pipelines, and a plurality of sewage discharge holes 41 are formed in the pipe wall of the communicating pipe 4 in each shellfish culture pond 2, so that the shellfish culture ponds 2 are communicated. The longitudinal section of the bottom of each shellfish culture pond 2 is U-shaped, and the communicating pipes 4 are buried at the bottom of the U-shaped shellfish culture pond 2, as shown in figure 2, so that the shellfish feces and other dirt at the bottom of the pond can be conveniently deposited and can easily enter the communicating pipes 4. Two ends of each pipeline directly penetrate out of the culture system, and an outlet is movably connected with the third water level pipe 20 so that the sewage can be discharged out of the culture system. The communicating pipe 4 is simultaneously used as a sewage discharge pipe, so that the pipeline at the bottom of the tank is simplified. The dirt such as the excrement deposited at the bottom of the shellfish culture pond 2 is discharged periodically through the communicating pipe 4, so that the culture system can maintain the long-term stability of culture conditions.
The culture system of the invention separately cultures baits and pearl shells, each bait culture pond 1 independently cultures baits, a plurality of bait culture ponds 1 alternately provide baits for the pearl shells in the shellfish culture pond 2, and regularly discharge pollutants, so that the environment of the culture system of the invention can be simply and effectively controlled, sufficient and stable bait supply can be ensured, and the long-term stability of culture conditions can be maintained, thereby the culture system of the invention can maintain the normal growth and survival requirements of the pearl shells for a long time, and the culture system of the invention is very suitable for culturing the pearl shells, in particular large-scale pearl shells with extremely strict requirements on culture environment and culture conditions, such as large pearl shells, penguin pearl shells and the like.
Each shellfish culture pond 2 is respectively communicated with the bait culture ponds 1 at the two sides of the shellfish culture pond 2 through two water return pipes 21 at the two sides of the communicating pipe 4, the inlet of each water return pipe 21 is connected with the communicating pipe 4, and the outlet of each water return pipe is movably connected with a water level pipe II 11. The shellfish culture ponds 2 are communicated through the communicating pipe 4, and the shellfish culture ponds 2 are communicated with the bait culture pond 1 through the water return pipe 21, so that water fed into the shellfish culture pond 2 from the bait culture pond 1 can flow circularly, and the utilization rate of bait in the water is improved.
A blocking pipe I12 is arranged in each bait cultivating pool 1, and a plurality of blocking holes are formed in the pipe wall of the upper portion of the blocking pipe I12. Four water level pipes 31 are erected in the return flume 3, and correspond to four total barrier pipes 12 in the four bait culture ponds 1 one by one respectively, and then two by two are close to each other, as shown in fig. 1, the lower end pipe orifices of the four water level pipes are communicated through a connecting pipe 13 to form a bait supply pipe for communicating the bait culture pond 1 with the return flume 3, the water level pipes 31 are movably connected with the connecting pipe 13, the bait supply pipe 31 can be inclined or pulled out, and whether the bait culture pond 1 supplies bait to the return flume 3 through the bait supply pipe and the water level in the return flume 3 is controlled. The water return tank 3 is communicated with each shellfish culture pond 2 through a bait distribution pipe 32, a water pump 6 is arranged in the water return tank 3, the water pump 6 is connected with an inlet of the bait distribution pipe 32, and an outlet of the bait distribution pipe 32 is led to the upper part of each shellfish culture pond 2 after the bait distribution pipe is forked. Each branch of the bait separating tube 32 is provided with a bait control switch 321, and the outlet is also sleeved with a filter bag 322. According to the culture system, the baits in the bait culture ponds 1 are transferred to the water return grooves 3 and then distributed to the shellfish culture ponds 2, only one water pump 6 is needed in the culture process, the position transfer of the water pump 6 is not involved, and the operation is convenient.
Every bait culture pond 1 all is equipped with the water changing pipe, the water changing pipe import is close to the bait culture pond 1 bottom, outside the export accesss to farming systems, specifically by the separation pipe two 14 of standing in bait culture pond 1, stand in the outer water level pipe four 10 of farming systems, intercommunication separation pipe two 14 and the two 15 constitutions of the orificial connecting pipe of water level pipe four 10 lower extreme, separation pipe two 14 lower part pipe walls are opened has a plurality of separation holes (the aperture is great, mainly used blocks the fish and shrimp etc. and passes through), water level pipe four 10 and two 15 swing joint of connecting pipe.
The culture system of the invention applies a large number of movably connected water level pipes at two ends of the pipeline, and by utilizing the water level pipes, whether water flows or not can be conveniently controlled, and the water level can be directly preset by adjusting the inclination degree of the water level pipes and the like, so that the operation is convenient. The two pipelines movably connected in the invention can be connected through an L-shaped pipe fitting adapter and the like.
The process of culturing the pearl oyster by utilizing the pearl oyster industrial circulating water culture system comprises the following steps:
unicellular algae serving as pearl oyster baits are cultured in each bait culture pond 1, and pearl oysters are hung and cultured in a shellfish culture pond 2. When a certain water level pipe 31 in the water return tank 3 is pulled open, the water rich in unicellular algae bait on the upper layer of the water body in the corresponding bait cultivating pool 1 enters the water return tank 3 through the connecting pipe 13 through the blocking hole on the blocking pipe 12. The water in the water returning tank 3 is pumped by the water pump 6 and then sent into the shellfish culture pond 2 with the bait control switch 321 turned on through the bait passing pipe 32. The filter bag 322 is used for filtering the water body, can select 300 meshes, mainly filters zooplankton in the water body, and further controls the quality of the aquaculture water in the shellfish culture pond 2. Bait is added into the shellfish culture pond 2 from the upper layer, after being filtered and eaten by the pearl shells, excrement generated by the pearl shells in the water is deposited at the bottom of the pond, enters the communicating pipe 4 through the sewage discharge hole 41 on the communicating pipe 4, and can be discharged out of the pond after the water level pipe III 20 is pulled out, so that the culture system can maintain the long-term stability of culture conditions. The water bodies in the 4 shellfish culture ponds 2 are communicated through a communicating pipe 4 and then communicated with the bait culture pond 1 through a water return pipe 21. The water level in the shellfish culture pond 2 can be adjusted through the second water level pipe 11, so that water is continuously added into the shellfish culture pond 2 under the action of the water pump 3 and then returns to the bait culture pond 1 through the communicating pipe 4 and the second water level pipe 11, and therefore the separate culture of bait and pearl oyster is realized, and the recycling of the bait is realized.
According to the invention, a plurality of bait culture ponds are arranged, and under the condition that water quality is aged in one bait culture pond and bait is reduced and can not be normally supplied, water in the corresponding bait culture pond 1 can be discharged through the blocking holes in the blocking pipe II 14 by pulling out the water level pipe IV 10 at the outlet end of the connecting pipe II 15, which leads to the outside of the pond, of the bait culture pond 1. Then adding new water to re-culture the unicellular algae bait. In the process, baits in other bait culture ponds 1 can be used for feeding, the bait culture ponds 1 are used for alternately providing baits for the shellfish culture ponds 2, and the mode of independently culturing the baits is adopted, so that sufficient and stable monadian algae baits are provided for the culture of the pearl shells.
Example two
The specific steps of the second industrial recirculating aquaculture method for pearl oyster reflect to the above-mentioned process of using the above-mentioned industrial recirculating aquaculture system for pearl oyster, and are not described herein.
The present invention is not limited to the above-described embodiments, and various other equivalent modifications, substitutions or alterations can be made without departing from the basic technical idea of the invention by the general technical knowledge and the conventional means in the field according to the above-described contents, and these are within the scope of the invention.
Claims (8)
1. An industrial recirculating aquaculture system for pearl shells is characterized in that: the culture system adopts the following layout: in a large culture pond, 9 independent small water ponds are partitioned by a # -shaped partition wall, 1 small water pond in the middle is used as a water return tank, the small water ponds at 4 corners are used as bait culture ponds, and the other 4 small water ponds are used as shellfish culture ponds;
each bait cultivating pool is communicated with the water return tank through a bait supply pipe, and an inlet of the bait supply pipe is positioned on the upper layer of the water body of the bait cultivating pool, so that the upper layer water body rich in unicellular algae bait flows into the water return tank through the bait supply pipe;
the water return tank is communicated with the shellfish culture ponds through a bait distribution pipe, a water pump is arranged in the water return tank and is connected with an inlet of the bait distribution pipe, and water pumped from the water return tank is branched through the bait distribution pipe and then is led to the shellfish culture ponds through an outlet of the water pump;
communicate each other through communicating pipe between the shellfish culture pond, communicating pipe is by laying four shellfish culture pond bottom of the pool, vertically and horizontally staggered becomes two pipelines of cross and middle part intercommunication and constitutes, is located each in the shellfish culture pond the pipe wall of communicating pipe has all opened a plurality of blowdown holes, and every breeding system is directly worn out at the both ends of pipeline, export swing joint water level pipe three, and is visible, communicating pipe still is used as the blow off pipe simultaneously, the both sides of every pipeline of communicating pipe are equipped with a return pipe respectively, the return pipe with the corresponding pipeline of communicating pipe is crisscross to become the cross and communicate at the middle part, thereby makes every shellfish culture pond passes through return pipe and both sides bait culture pond intercommunication, and is located bait culture pond's return pipe export swing joint water level pipe two.
2. The farming system of claim 1, wherein: the bait is cultivated the pond and is put upright to have separation pipe one, and separation pipe one upper portion pipe wall is opened there are a plurality of separation holes, return flume neutral to have water level pipe one, and separation pipe one passes through a connecting pipe intercommunication with water level pipe lower extreme mouth of pipe, constitutes to communicate one the bait is cultivated the pond with return flume supply bait pipe, just water level pipe one with a connecting pipe swing joint.
3. The farming system of claim 1, wherein: the shellfish culture pond bottom longitudinal section is "U" shape, communicating pipe buries each shellfish culture pond's "U" shape bottom.
4. The farming system of claim 1, wherein: each bait is cultivated the pond and all is equipped with the water changing pipe, the water changing pipe import is close to bottom of the pool is cultivated to bait, and the export accesss to outside the farming systems, the water changing pipe specifically by standing on the separation pipe two in pond is cultivated to bait is located the outer water level pipe four of farming systems, and the intercommunication separation pipe two constitutes with the orificial connecting pipe two of four lower extreme of water level pipe, two lower part pipe walls of separation pipe are opened there are a plurality of separation holes, water level pipe four with two swing joint of connecting pipe.
5. The farming system of claim 1, wherein: the outlet of the bait separating pipe is also sleeved with a filter bag for filtering zooplankton.
6. A farming method using the farming system of claim 1, comprising the steps of:
bait is independently cultured in each bait culturing pond;
hanging and culturing pearl shells in the shellfish culture pond;
alternately providing baits for the pearl shells in the shellfish culture pond by adopting the bait culture pond, wherein each time:
enabling water rich in bait on the upper layer of the water body in a certain bait cultivating pool to flow into the water return tank through the bait supply pipe;
the water in the water return tank is pumped by the water pump and is sent into a certain shellfish culture pond through the bait distribution pipe, so that the bait is added into the shellfish culture pond from the upper layer, and in the process that the water in the water return tank is continuously added into the shellfish culture pond under the action of the water pump, the water in the shellfish culture pond is dispersed into other shellfish culture ponds through the communicating pipe and further flows back to the bait culture pond through the water return pipe, and the separate culture of the bait and the pearl oyster and the cyclic utilization of the bait are realized;
and periodically discharging the excrement of the pearl oyster settled at the bottom of the shellfish culture pond out of the culture system through the sewage discharge pipe.
7. The farming method of claim 6, wherein: the method further comprises the steps of:
controlling the water pumping amount of the water pump so as to control the bait feeding amount.
8. The farming method of claim 6, wherein: the method further comprises the steps of:
and discharging water in a certain bait culture pond under the condition that the water quality of the bait culture pond is aged and the bait is reduced and can not be normally supplied, then adding new water to cultivate the bait again, and feeding the pearl oyster in the shellfish culture pond by using the baits in other bait culture ponds in the process.
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| CN101248766A (en) * | 2007-11-20 | 2008-08-27 | 广东海洋大学 | Shrimp-fish-shellfish-algae multiple cultivation and water quality biological regulate and control system thereof |
| CN205389987U (en) * | 2016-01-29 | 2016-07-27 | 中国水产科学研究院南海水产研究所 | Hepu pearl oyster betta is a seed selection seed rearing system |
| CN207269643U (en) * | 2017-09-19 | 2018-04-27 | 中国水产科学研究院南海水产研究所 | Pearl shell industrial circulating water cultivating system |
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