CN111248120A - Wild brown spot three-line cynoglossus Gunther fry domesticating device and method - Google Patents
Wild brown spot three-line cynoglossus Gunther fry domesticating device and method Download PDFInfo
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- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01K—ANIMAL HUSBANDRY; AVICULTURE; APICULTURE; PISCICULTURE; FISHING; REARING OR BREEDING ANIMALS, NOT OTHERWISE PROVIDED FOR; NEW BREEDS OF ANIMALS
- A01K61/00—Culture of aquatic animals
- A01K61/10—Culture of aquatic animals of fish
-
- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01K—ANIMAL HUSBANDRY; AVICULTURE; APICULTURE; PISCICULTURE; FISHING; REARING OR BREEDING ANIMALS, NOT OTHERWISE PROVIDED FOR; NEW BREEDS OF ANIMALS
- A01K61/00—Culture of aquatic animals
- A01K61/10—Culture of aquatic animals of fish
- A01K61/13—Prevention or treatment of fish diseases
-
- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01K—ANIMAL HUSBANDRY; AVICULTURE; APICULTURE; PISCICULTURE; FISHING; REARING OR BREEDING ANIMALS, NOT OTHERWISE PROVIDED FOR; NEW BREEDS OF ANIMALS
- A01K63/00—Receptacles for live fish, e.g. aquaria; Terraria
- A01K63/003—Aquaria; Terraria
-
- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01K—ANIMAL HUSBANDRY; AVICULTURE; APICULTURE; PISCICULTURE; FISHING; REARING OR BREEDING ANIMALS, NOT OTHERWISE PROVIDED FOR; NEW BREEDS OF ANIMALS
- A01K63/00—Receptacles for live fish, e.g. aquaria; Terraria
- A01K63/04—Arrangements for treating water specially adapted to receptacles for live fish
-
- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01K—ANIMAL HUSBANDRY; AVICULTURE; APICULTURE; PISCICULTURE; FISHING; REARING OR BREEDING ANIMALS, NOT OTHERWISE PROVIDED FOR; NEW BREEDS OF ANIMALS
- A01K63/00—Receptacles for live fish, e.g. aquaria; Terraria
- A01K63/04—Arrangements for treating water specially adapted to receptacles for live fish
- A01K63/042—Introducing gases into the water, e.g. aerators, air pumps
-
- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01K—ANIMAL HUSBANDRY; AVICULTURE; APICULTURE; PISCICULTURE; FISHING; REARING OR BREEDING ANIMALS, NOT OTHERWISE PROVIDED FOR; NEW BREEDS OF ANIMALS
- A01K63/00—Receptacles for live fish, e.g. aquaria; Terraria
- A01K63/04—Arrangements for treating water specially adapted to receptacles for live fish
- A01K63/045—Filters for aquaria
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A40/00—Adaptation technologies in agriculture, forestry, livestock or agroalimentary production
- Y02A40/80—Adaptation technologies in agriculture, forestry, livestock or agroalimentary production in fisheries management
- Y02A40/81—Aquaculture, e.g. of fish
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- Life Sciences & Earth Sciences (AREA)
- Environmental Sciences (AREA)
- Marine Sciences & Fisheries (AREA)
- Animal Husbandry (AREA)
- Biodiversity & Conservation Biology (AREA)
- Zoology (AREA)
- Farming Of Fish And Shellfish (AREA)
- Physical Water Treatments (AREA)
Abstract
The invention discloses a wild cynoglossus limosus fry domesticating device and method, comprising the following steps: a. putting the fry caught in the field water area into a medicated bath pool for disinfection before domestication; b. putting the sterilized healthy fries into a water circulation domestication device; c. properly adjusting the water quality in the culture pond; d. after the fry is put into the pond, feeding baits according to the size of the fry; e. dividing the culture density of the fry into ponds according to the size of the fry in the growing period; f. fish fry domestication parasite prevention and control; g. preventing and controlling bacterial fester disease. The device comprises the pond of a plurality of different functions, the center control system of overall planning and all pond circumstances of control in, collects high-efficient, environmental protection as an organic whole and operates succinctly, and it is clear to breed data, and it is efficient to tame, but center control system global regulation and control behind the initial stage setting procedure satisfies especially to wild brown spot three-wire tongue sole tame breed and provides powerful support for artificial breeding and germplasm resource protection on next step.
Description
Technical Field
The invention relates to the field of fish culture, in particular to a wild cynoglossus limosus three-wire cynoglossus fry domestication method and a wild cynoglossus limosus three-wire cynoglossus fry domestication device related to the method.
Background
The brown spot three-line tongue sole (Cynoglossus tripartitus) belongs to the families of floales, cynoglossoides suborder, cynoglossidae and three-line tongue sole, inhabits in coastal areas, estuaries and rivers, often hides in sand bottom or buries in sand, is a common variety in the south east coast, has large size, delicious taste and high price, and has the current market price of 200-300 yuan/kg, thus being popular with consumers. In recent years, the resource amount of cynoglossus limosus in the east China sea fishery is sharply reduced due to the deterioration of marine environment, over-fishing and the like. The method has great influence on the normal survival and propagation of the plants, and the problem of species protection is increasingly concerned. The research on the artificial breeding and breeding of the cynoglossus limosus is blank at home and abroad. The Cynoglossus pinfollowed is suitable for being developed into an industrial circulating water breeding variety, and is also suitable for being developed into a comprehensive ecological breeding variety in a coastal pond due to the broad salt property and the high temperature resistance of the Cynoglossus pinfollowed. Therefore, the cynoglossus limosus is a variety which needs to break through artificial breeding urgently, and the problem which needs to be solved by breaking through artificial breeding is to realize artificial domestication and cultivation of wild seedlings.
Disclosure of Invention
Aiming at the defects in the prior art, the invention provides a device and a method for domesticating wild brown spotted three-wire tongue sole, and provides a device and method for domesticating wild brown spotted three-wire tongue sole through flowing water circulation, aiming at the living environment and habit of the wild brown spotted three-wire tongue sole, so as to realize domestication with high efficiency and high survival rate.
In order to achieve the purpose, the invention provides the following technical scheme: a wild Cynoglossus Gunther fry domesticating method is characterized by comprising the following steps:
a. putting the fry caught in the field water area into a medicated bath for disinfection before domestication: the disinfection time is 10-15 minutes, and the components of the medicinal bath liquid are as follows: 5mg/m3Iodine preparation, 200g/m310% of florfenicol and an antibiotic partner;
b. putting the sterilized healthy fries into a domestication device with a flow circulation to domesticate:
in the first 15d, the water flow rate is 5 m/s;
after the time of 15d, the operation is finished,
before the fry grows to 8cm, the water flow rate is 3m/s,
after the fry grows to 8cm, the water flow rate in winter is 1m/s, the water flow rate in summer is 2m/s,
the biochemical cotton filter is laid at the bottom of the culture pond, and fine sand is laid at the bottom of the culture pond for fry inhabitation and cleaning;
c. properly adjusting the water quality in the culture pond: regulating and controlling the water quality in the culture pond to be weakly alkaline soft water with the pH value of 7-8, controlling the water temperature to be kept between 15 ℃ and 20 ℃, keeping the salinity between 15 per thousand and 20 per thousand, keeping the illumination of the culture pond within 300 lm/square meter, and arranging oxygenation equipment to ensure that the oxygen content of water in the culture pond is more than 5 mg/L;
d. after the fry is put into the pond, feeding baits according to the size of the fry: feeding shredded clamworms for the first time, feeding the clamworms only according to the length of less than 8cm after the first time, and feeding various shellfish meat and crab meat which are more than 8 cm;
e. the breeding density of the fry is divided into ponds according to the size of the fry in the growing period:
length below 5 cm: 70-80 pieces per square meter,
length between 5cm and 8 cm: 50 per square meter,
length from 8cm to 12 cm: 30 pieces per square meter,
length between 12cm and 15 cm: 20 per square meter;
f. fry domestication parasite prevention and control: during domestication, transferring the fry to a fresh water pool every 15 days for soaking for 20-30 min according to body length to kill parasites and ensure the activity of the fry;
g. prevention and control of bacterial canker handles: when bacterial fester disease takes place, at first will paint erythromycin at the affected part and disinfect, secondly will close the circulation system temporarily, do not cause the influence to the fry and descend water level in the pond to the internal medicine of pond: galla chinensis 120mg/L and fructus Chebulae 240mg/L, continuously applying for 3 days 30min every day, starting circulation system and increasing flow rate to 5m/s until fry is recovered and recovered.
Furthermore, the fry captured in the step a is prevented from being injured as much as possible, so that the survival rate of the later domestication is improved.
The technical measures of the steps are as follows: the method for achieving normal breeding from medicinal bath disinfection after capture of wild Cynoglossus limosus fry comprises the steps of regulating and controlling the oxygen content of circulating water in a flowing water breeding pond by a domestication device to be 5mg/L, the water temperature to be 15-20 ℃, the salinity to be 15-20 per mill, the pH value to be 7-8, the flow rate to be 5m/s and the illumination of the breeding pond to be 300L ux, paving fine sand at the bottom of the breeding pond, breeding according to body type in a separate pond, preventing and controlling periodic parasitic diseases and the like, and achieves the requirements for domestication of wild Cynoglossus limosus fry.
The utility model provides a device is tamed and raised to three-wire tongue sole fry of wild brown spot, including heat preservation big-arch shelter, center control system, a plurality of breed pond, a plurality of cistern, disinfection sedimentation tank, a plurality of valve pipeline, its characterized in that, breed pond, cistern, disinfection sedimentation tank and be linked together each other with the valve pipeline respectively, breed pond and valve pipeline junction and set up the filter screen, be provided with the quality of water regulation and control subassembly that is controlled by center control system between valve pipeline and the filter screen, still set up a plurality of sensors that are used for gathering current quality of water information and transmit for center control system in breeding the pond, breed pond bottom is provided with biochemical cotton filter, and has the pool bottom area of third to set up the fine sand that exceeds bottom of the pool face 10 centimeters at least.
Through the scheme, the domestication device with the multiple culture ponds connected with the water reservoirs is obtained and is a water circulation device, the water circulation device is controlled by a control system set program, the current water quality is monitored through the arranged sensors, and the water quality is regulated and controlled through the water quality regulation and control assembly formed by various instruments, so that the domestication device is more suitable for domestication of target fishes.
Further, still be provided with the air supporting play water installation of being connected with the valve pipeline in the breed pond, air supporting play water installation is including gasbag, water pipe, haulage rope and filtration mouth of a river.
According to the scheme, the obtained culture pond further comprises an air-floating water outlet device, the height of the air-floating water outlet device is limited by a cup traction rope, the air-floating water outlet device always floats on the water surface under the buoyancy of the air bag, and impurities floating on the water surface can be discharged through the filtering water outlet and the water pipe.
Furthermore, the water quality regulation and control assembly at least comprises a plurality of oxygenation devices and constant temperature devices.
Further, still including independently setting up and being used for the fry disinfection and clear dipping basin, can regularly disinfect and clean fry in independent dipping basin.
Further, the disinfection sedimentation tank is provided with purifier, the evolution device includes ozone generator, ultraviolet sterilization appearance, filtration purifier, can purify the sediment to water source and circulating flowing water.
Furthermore, the valve pipeline is an electronic valve and is controlled by a central control system.
Furthermore, the central control system also comprises a communication device which can push warning information to operators in time when the water quality in the pool changes or emergencies occur.
The scheme has the beneficial effects that:
the device and the method improve the domestication survival rate of the wild brown spot three-line tongue sole and achieve the purpose of efficient breeding by reforming the breeding pond to form fine sand at the bottom of the pond so that fish fries can pass through the fine sand to remove mucus and parasites on the body, arranging the water quality control assembly behind the filter screen of each breeding pond and receiving information collected by a sensor of a central control system, controlling the current water quality in real time under the regulation of the central control system, and enabling an air-floatation water outlet device in each breeding pond to discharge impurities such as dust floating on the water surface out of the breeding pond and periodically transferring the impurities to an independent medicated bath disinfection pond for disease control.
Drawings
FIG. 1 is a schematic diagram of the structure of the apparatus of the present invention;
FIG. 2 is a schematic structural view of a culture pond of the present invention;
FIG. 3 is a schematic structural view of the air-flotation water outlet device of the present invention.
Reference numerals: 1. a culture pond; 2. a medicated bath pool; 3. a filter screen; 4. a water pump; 5. an air floatation water outlet device; 51. an air bag; 52. a water pipe; 53. a traction rope; 54. filtering the water outlet; 6. a water quality regulation component; 8. a biochemical cotton filter; 9. fine sand; 11. a sensor; 12. a reservoir; 13. disinfecting the sedimentation tank; 14. a central control system; 15. a valve conduit; 16. a communication device; 17. a purification device; 18. a water source; 19. a wastewater treatment zone.
Detailed Description
The present invention will be described in further detail with reference to fig. 1 to 3 and examples, but the present invention is not limited thereto.
Example 1:
a wild Cynoglossus Gunther fry domesticating method comprises the following steps:
1. and (3) breeding matched facilities: selecting relatively independent culture ponds 1 which are built by at least two tons of heat insulation materials, laying a biochemical cotton filter 8 at the bottom of the culture ponds, laying fine sand 9 at one third area of the bottom of the culture ponds, wherein the fine sand 9 is higher than the bottom of the culture ponds by more than 10 centimeters, the culture ponds 1 are also provided with a water outlet and a water inlet, the water inlet is connected with a valve pipeline 15 and is provided with a filter screen 3, a water quality regulation and control assembly 6 is arranged between the filter screen 3 and the valve pipeline 15, each culture pond 1 is also provided with an air floatation water outlet device 5 for discharging impurities on the water surface in a matching way, the water outlet and the water inlet of each culture pond 1 are respectively connected with a reservoir 12, the reservoir 12 is connected with a disinfection sedimentation pond 13 by the valve pipeline 15 and is connected with a waste water treatment area 19, the disinfection sedimentation pond 13 is provided with a purification device 17 at a water source 18 and, and is provided with an ultraviolet sterilizer for purifying and sterilizing the water of the water circulation source.
2. Water quality regulation and control: the optimum domestication water temperature is 15-20 ℃, the salinity is 15-20 per mill, the PH value is 7-8, the oxygen content is more than 5mg/L, the environmental illumination is 300Lux, and the water flow rate of the flowing water circulation is kept at 5 m/s. The central control system 14 collects information through a sensor 11 arranged in the culture pond and controls the control of the current circulating water in the culture pond 1; the water circulation of the culture pond 1 is mainly controlled by a central control system 14 to provide power by a water pump 4, the stored water in a reservoir 12 is led into the culture pond 1, then the water in the culture pond 1 is led into the reservoir 12, the water level is kept under the action of a sensor 11 and the central control system 14, the water is in continuous flowing circulation, the water quality collected by the sensor 11 is controlled by the central control system 14 to open a water quality regulation and control assembly 6, flowing water in the water circulation is optimized, the drainage function can be opened to ensure the water quantity in the culture pond 1, and old water is discharged to a wastewater treatment area 19 for treatment and discharge and then led into supplementing water pretreated in a disinfection sedimentation tank 13; the pretreatment source water in the disinfection sedimentation tank 13 is continuously filtered and purified by a purification device such as an ozone generator, an ultraviolet sterilization instrument, a filtration purifier and the like, then is precipitated for at least one week and then is introduced into the reservoir 12, the ozone generator is started for more than 5 hours every day in the precipitation process, the pretreatment source water is stood for 12 hours after being started for the last time and then is precipitated, then the middle layer clear water in the disinfection sedimentation tank 13 is introduced into the reservoir 12 by a water pump, and a sensor 11 is used for detection to ensure that the water enters circulation after being shut down; the water temperature in the culture pond 1 needs to be detected in real time, once the temperature deviates from the set value, the constant temperature equipment is started immediately, and then the water flow rate is accelerated or decelerated by the auxiliary water pump 4, so that the water temperature is ensured to be within 2 ℃, if the PH value fluctuates, the central control system puts acid and alkali agents into the water storage pool 12 within the range not exceeding 1 to change the PH value, slowly corrects the water quality in the culture pond 1 through water circulation, the process lasts for more than 12 hours, water is gradually changed, the adjustment range is not more than 1 within 24 hours, the salinity is kept between 15 per mill and 20 per mill, the adjustment is immediately carried out when the salinity exceeds 2 per mill, a powerful oxygenation pump supplies oxygen uninterruptedly for 24 hours, the dissolved oxygen is ensured to be more than 5mg/L, and a standby generator is equipped to continuously act on an instrument of a central control system under unexpected conditions, when the water quality cannot be corrected by the adjusting means, the water in the pool is replaced by starting the drainage function, and the daily water replacement amount is not more than 20 percent.
3. Bait feeding and pond-separating culture: after the fry is put into the pond, feeding baits according to the size of the fry: feeding the minced clamworms for the first time, and feeding the clamworms only according to the time below 8cm after the first time, wherein the feeding of the clamworms with the feed amount larger than 8cm can increase the feeding of various shellfish meat and small crabs;
the breeding density of the fry is divided into ponds according to the size of the fry in the growing period:
length below 5 cm: 70-80 pieces per square meter,
the length is 5-8 cm: 50 per square meter,
the length is 8-12 cm: 30 pieces per square meter,
the length is 12-15 cm: 20 pieces per square meter.
4. Medicated bath, disinfection, cleaning and disease prevention and control: wild cynoglossus limosus fry usually contains a plurality of microorganisms such as parasites which cause the reduction of the survival rate of the cultured cynoglossus limosus fry, so the fry must be disinfected by a medicated bath, the disinfection time is 10-15 minutes, and the components of the medicated bath are as follows: 5mg/m3Iodine preparation, 200g/m310% of florfenicol and an antibiotic partner; the method comprises the steps of (1) mixing the medicinal bath liquid, putting the mixed medicinal bath liquid into a medicinal bath pool 2, transferring the fish fries into the medicinal bath pool 2, quickly transferring the fish fries into a transfer pool for cleaning after the time is up, putting the fish fries into a culture pool 1 for culture, spraying 0.1ppm of potassium permanganate, 1ppm of iodine preparation and 1ppm of oxytetracycline into the culture pool 1 after the fish fries are put into the pool, removing 25% of circulating water after 24 hours, gradually diluting the medicines for several days, transferring the fish fries into a fresh water pool every 15 days during the growth period, and killing parasites and partial bacteria in a salinity difference mode; bacterial ulcerate disease's prevention and control, at first will paint erythromycin in the affected part and disinfect during the emergence, secondary will be temporary closes circulation system, does not cause the influence to the fry and descends pond water level to the internal medicine of pond: galla chinensis 120mg/L and fructus Chebulae 240mg/L, continuously applying for 3 days 30min every day, starting circulation system and increasing flow rate to 5m/s until fry is recovered and recovered.
By the method for domesticating the wild brown spot three-line cynoglossus Gunther fry, the survival rate of domesticating the wild brown spot three-line cynoglossus Gunther fry is improved, the domesticating efficiency is improved, and the daily physical work of managers is reduced.
Example 2:
a wild brown spot three-line tongue sole fry domestication device is globally controlled by a central control system 14, and further comprises a plurality of culture ponds 1 constructed by heat insulation materials, a plurality of water reservoirs 12, a disinfection sedimentation pond 13 and a plurality of valve pipelines 15 used for being connected with each other, the culture ponds 1, the water reservoirs 12 and the disinfection sedimentation pond 13 are respectively communicated with each other by the valve pipelines 15, a filter screen 3 is arranged at the joint of the culture ponds 1 and the valve pipelines 15, a water quality regulation and control assembly 6 is arranged between the valve pipelines 15 and the filter screen 3, the water quality regulation and control assembly 6 is integrated by an oxygenator, a thermostatic device and the like and is responsible for correcting the water quality in the culture ponds 1, a plurality of sensors 11 used for collecting current water quality information and transmitting the current water quality information to the central control system 14 are further arranged in the culture ponds 1, biochemical cotton filters 8 are arranged on the bottom surfaces of the ponds, and fine sand 9 at least 10 centimeters higher than the bottom surfaces of the ponds is arranged, the Cynoglossus Gunther is used for inhabitation and cleaning of brown spots and three-line tongue sole, each culture pond 1 is also provided with an air-float water outlet device 5 which can discharge impurities on the water surface of the culture pond 1, the reservoir 12 connected with the culture pond 1 is divided into a water inlet reservoir 12 and a water outlet reservoir 12 which respectively supply water and drain water to the culture pond 1 in a water circulation system, the reservoirs 12 are mutually communicated, the sea disinfection sedimentation pond 13 is communicated, the disinfection sedimentation pond 13 is provided with a water inlet and a water outlet, the water inlet is connected with one of the water outlets of the reservoir 12 and is connected with an external water source such as a tap water pipe, the water inlet is also provided with a purification device 17 which comprises an ozone generator, a filtration water purifier and the like, the disinfection sedimentation pond 13 is also provided with an ultraviolet sterilization instrument and the like for sterilizing and killing insects of the water in the pond, a valve pipeline 15 is an electronic valve controlled by a central control, and the central control system 15 monitors the water quality in the pool through the arranged sensor 11, is responsible for stabilizing the water quality, and can push information to managers through the communication device 16 after the water quality is uncontrollably changed to perform considered regulation and control loss prevention.
The domestication method provided by the invention comprises the steps of designing and building a domestication and mating facility, regulating and controlling water quality in the domestication process, feeding bait, introducing breeding density, and setting proper water temperature, oxygen content, pH value, salinity and the like according to the habit of the Cynoglossus davidianus Gunther through a running water circulation domestication and mating system, thereby meeting the requirement of domestication of the wild Cynoglossus davidianus Gunther seedlings, providing stable conditions for the growth of the seedlings, promoting the healthy growth of the seedlings, developing a set of method aiming at the domestication key points of the Cynoglossus davidianus Gunther in the whole domestication process, improving the survival rate, and achieving the purpose of high-efficiency breeding.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and it is to be understood that the above description is not to be construed as limiting the present invention, and any modifications, equivalents, improvements and the like made within the design concept of the present invention are included in the scope of the present invention.
Claims (9)
1. A wild Cynoglossus Gunther fry domesticating method is characterized by comprising the following steps:
a. putting the fry caught in the field water area into a medicated bath for disinfection before domestication: the disinfection time is 10-15 minutes, and the components of the medicinal bath liquid are as follows: 5mg/m3Iodine preparation, 200g/m310% of florfenicol and an antibiotic partner;
b. putting the sterilized healthy fries into a domestication device with a flow circulation to domesticate:
in the first 15d, the water flow rate is 5 m/s;
after the time of 15d, the operation is finished,
before the fry grows to 8cm, the water flow rate is 3m/s,
after the fry grows to 8cm, the water flow rate in winter is 1m/s, and the water flow rate in summer is 2 m/s;
a biochemical cotton filter is laid at the bottom of the culture pond, and fine sand is laid at the bottom of the culture pond for fry inhabitation and cleaning;
c. properly adjusting the water quality in the culture pond: regulating and controlling the water quality in the culture pond to be weakly alkaline soft water with the pH value of 7-8, controlling the water temperature to be kept between 15 ℃ and 20 ℃, keeping the salinity between 15 per thousand and 20 per thousand, keeping the illumination of the culture pond within 300 lm/square meter, and arranging oxygenation equipment to ensure that the oxygen content of water in the culture pond is more than 5 mg/L;
d. after the fry is put into the pond, feeding baits according to the size of the fry: feeding shredded clamworms for the first time, feeding the clamworms only according to the length of less than 8cm after the first time, and feeding various shellfish meat and crab meat which are more than 8 cm;
e. the breeding density of the fry is divided into ponds according to the size of the fry in the growing period:
length below 5 cm: 70-80 pieces per square meter,
length between 5cm and 8 cm: 50 per square meter,
length from 8cm to 12 cm: 30 pieces per square meter,
length between 12cm and 15 cm: 20 per square meter;
f. fry domestication parasite prevention and control: during domestication, transferring the fry to a fresh water pool every 15 days for soaking for 20-30 min according to body length to kill parasites and ensure the activity of the fry;
g. prevention and control of bacterial fester disease: when bacterial fester disease takes place, at first will paint erythromycin at the affected part and disinfect, secondly will close the circulation system temporarily, do not cause the influence to the fry and descend water level in the pond to the internal medicine of pond: galla chinensis 120mg/L and fructus Chebulae 240mg/L, continuously applying for 3 days 30min every day, starting circulation system and increasing flow rate to 5m/s until fry is recovered and recovered.
2. The method for domesticating fish fry of cynoglossus limosus with three-line as claimed in claim 1, wherein the fish fry captured in step a is protected from injury as much as possible to improve the survival rate of domestication in later period.
3. A wild Cynoglossus Gunther fry domesticating device comprises a heat preservation greenhouse, a central control system (14), a plurality of culture ponds (1), a plurality of water reservoirs (12), a disinfection sedimentation pond (13) and a plurality of valve pipelines (15), it is characterized in that the culture pond (1), the water storage tank (12) and the disinfection sedimentation tank (13) are respectively communicated with each other by a valve pipeline (15), a filter screen (3) is arranged at the joint of the culture pond (1) and the valve pipeline (15), a water quality regulating and controlling component (6) controlled by a central control system (14) is arranged between the valve pipeline (15) and the filter screen (3), a plurality of sensors (11) used for collecting current water quality information and transmitting the current water quality information to a central control system (14) are also arranged in the culture pond (1), the bottom surface of the culture pond (1) is provided with a biochemical cotton filter (8), and one third of the area of the bottom surface of the pool is provided with fine sand (9) which is at least 10 centimeters higher than the bottom surface of the pool.
4. The device for domesticating wild cynoglossus limosus three-wire fry according to claim 3, wherein an air-flotation water outlet device (5) connected with a valve pipeline (15) is further arranged in the culture pond (1), and the air-flotation water outlet device (5) comprises an air bag (51), a water pipe (52), a traction rope (53) and a filtering water outlet (54).
5. The device for domesticating wild Cynoglossus Gunther fry according to claim 3, wherein the water quality control component (6) at least comprises a plurality of oxygenation devices and constant temperature devices.
6. The fish fry domestication device for wild brown spot three-line cynoglossus Gunther according to claim 3, characterized by further comprising a medicinal bath (2) which is independently arranged for fish fry disinfection and cleaning.
7. The device for domesticating wild cynoglossus limosus fry according to claim 3, wherein the disinfection sedimentation tank (13) is provided with a purification device (17), and the evolution device (17) comprises an ozone generator, an ultraviolet sterilization instrument and a filtration purifier, and can purify and precipitate the water source (18) and the circulating running water.
8. The device for domesticating wild cynoglossus limosus fry according to claim 3, wherein the valve pipeline (15) is an electronic valve and is controlled by a central control system (14).
9. The device for domesticating wild Cynoglossus Gunther fry according to claim 3, wherein the central control system (14) further comprises a communication device (16).
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| CN112293336A (en) * | 2020-12-07 | 2021-02-02 | 西藏自治区农牧科学院水产科学研究所 | Domestication system and method for adult wild cyprinus carpio |
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