CN105994039A - Intensive culture method for improving rhinogobio ventralis larva culture survival rate - Google Patents
Intensive culture method for improving rhinogobio ventralis larva culture survival rate Download PDFInfo
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- CN105994039A CN105994039A CN201610358178.2A CN201610358178A CN105994039A CN 105994039 A CN105994039 A CN 105994039A CN 201610358178 A CN201610358178 A CN 201610358178A CN 105994039 A CN105994039 A CN 105994039A
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- 230000004083 survival effect Effects 0.000 title claims abstract description 21
- 238000012136 culture method Methods 0.000 title claims abstract description 16
- 241000692809 Rhinogobio ventralis Species 0.000 title abstract description 9
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 50
- 238000000034 method Methods 0.000 claims abstract description 47
- 150000001875 compounds Chemical class 0.000 claims abstract description 36
- 241000251468 Actinopterygii Species 0.000 claims abstract description 31
- 238000012258 culturing Methods 0.000 claims description 118
- 230000003203 everyday effect Effects 0.000 claims description 35
- 238000007598 dipping method Methods 0.000 claims description 33
- 241000700141 Rotifera Species 0.000 claims description 28
- 230000000384 rearing effect Effects 0.000 claims description 23
- 238000005273 aeration Methods 0.000 claims description 20
- 238000011109 contamination Methods 0.000 claims description 20
- 241001000394 Diaphania hyalinata Species 0.000 claims description 19
- 239000002245 particle Substances 0.000 claims description 18
- 238000009395 breeding Methods 0.000 claims description 17
- 230000001488 breeding effect Effects 0.000 claims description 17
- 229920001661 Chitosan Polymers 0.000 claims description 13
- RBTBFTRPCNLSDE-UHFFFAOYSA-N 3,7-bis(dimethylamino)phenothiazin-5-ium Chemical compound C1=CC(N(C)C)=CC2=[S+]C3=CC(N(C)C)=CC=C3N=C21 RBTBFTRPCNLSDE-UHFFFAOYSA-N 0.000 claims description 11
- 229960000907 methylthioninium chloride Drugs 0.000 claims description 11
- 239000007788 liquid Substances 0.000 claims description 10
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims description 5
- 230000002706 hydrostatic effect Effects 0.000 claims description 5
- 238000007654 immersion Methods 0.000 claims description 5
- 229910052760 oxygen Inorganic materials 0.000 claims description 5
- 239000001301 oxygen Substances 0.000 claims description 5
- 230000003071 parasitic effect Effects 0.000 claims description 5
- 238000004659 sterilization and disinfection Methods 0.000 claims description 5
- 239000004575 stone Substances 0.000 claims description 5
- 230000000366 juvenile effect Effects 0.000 abstract description 6
- 238000005516 engineering process Methods 0.000 abstract description 2
- 241000883303 Acipenser sinensis Species 0.000 description 3
- 241001125080 Erpetoichthys calabaricus Species 0.000 description 3
- 230000008034 disappearance Effects 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 238000009304 pastoral farming Methods 0.000 description 3
- 201000010099 disease Diseases 0.000 description 2
- 208000037265 diseases, disorders, signs and symptoms Diseases 0.000 description 2
- 238000005538 encapsulation Methods 0.000 description 2
- 230000001418 larval effect Effects 0.000 description 2
- 241000881711 Acipenser sturio Species 0.000 description 1
- 241001672694 Citrus reticulata Species 0.000 description 1
- 241000252210 Cyprinidae Species 0.000 description 1
- 206010059866 Drug resistance Diseases 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 239000003814 drug Substances 0.000 description 1
- 230000036039 immunity Effects 0.000 description 1
- 208000015181 infectious disease Diseases 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000011144 upstream manufacturing Methods 0.000 description 1
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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
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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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- Biodiversity & Conservation Biology (AREA)
- Farming Of Fish And Shellfish (AREA)
Abstract
The invention provides an intensive culture method for improving rhinogobio ventralis larva culture survival rate. The method comprises the steps of: step 1, pre-larva culture, step 2, post-larva culture, and step 3, juvenile fish culture. In the step 3, juvenile rhinogobio ventralis is cultured in a small water culture pond. An artificial compound feed is used for feeding twice a day. After each feeding, the small water culture pond is cleaned in time, and 60-80wt% of water in the small water culture pond is replaced. With the intensive culture method for improving rhinogobio ventralis larva culture survival rate, a problem that rhinogobio ventralis larvae and juvenile are vulnerable to ichthyophthiriasis can be solved. Ichthyophthiriasis is effectively controlled during the rhinogobio ventralis larva culture stage, and rhinogobio ventralis larva culture survival rate is improved. Therefore, a basis is established for the breaking-through of rhinogobio ventralis larva large-scale culture technology.
Description
Technical field
The present invention relates to rare Endemic fish species conservation technical field, the intensive culture method of a kind of high long fin kiss seed rearing survival rate.
Background technology
Long fin kiss (Rhinogobio ventralis) is subordinate to Cyprinidae, subfamily, is small-sized economic fish of dwelling at the Upper Yangtze River distinctive end.Show according to the statistics since Inst. of Hydrobiology, Chinese Academy of Sciences 1997, long fin kiss accounts for the 10% of upstream fishery resources amount, but, in recent years owing to being affected by factors such as river pollution, hydraulic engineering construction and overfishings, the wild resource of long fin kiss the most drastically declines.In April, 2014; first Yangtze River in China Three Gorges group mandarin sturgeon institute breaches the artificial propagation techniques of long fin kiss; but find during seed rearing; the fry in long fin kiss larva and juvenile stage easily infects little melonworm disease; cause its seed rearing survival rate relatively low, it has also become the bottleneck problem of long fin kiss seed large-scale cultivation.
Generally, the many outbursts of ichthyophthiriasis are in postlarva, juvenile fish and the adult fish stage of Fish, the report infecting little melonworm disease in larval stages is rare, and long fin kiss seed easily infects little melonworm in prelarva, postlarva stage, the fry drug resistance ability in this stage, resistance are poor, so, long fin kiss prelarva, postlarva once infect little melonworm, and mortality rate is high.Therefore, need badly to find out and a kind of can effectively prevent and treat the cultivation pattern of little melonworm in the long fin kiss larva and juvenile Seedling stage, thus improve the survival rate of long fin kiss seed rearing, establish technical foundation for breaking through long fin kiss scale rearing of fingerling.
Summary of the invention
The technical problem to be solved is to provide a kind of intensive culture method improving long fin kiss seed rearing survival rate; long fin kiss prelarva, the problem of postlarva easy infection ichthyophthiriasis can be solved; in the long fin kiss seed rearing stage, little melonworm is carried out effectively preventing; improve the survival rate of long fin kiss seed rearing, lay the foundation for breaking through long fin kiss scale rearing of fingerling.
For solving above-mentioned technical problem, the technical solution adopted in the present invention is: a kind of intensive culture method improving long fin kiss seed rearing survival rate, and the method comprises the following steps:
Step 1: prelarva is cultivated: be that the long fin kiss prelarva of 1 age in days-6 age in days carries out hydrostatic cultivation to the age of a fish in small size pond culturing pool, use the mode of micro-aeration in breeding process, the cultivation density 800-1000 tail/cubic meter of long fin kiss prelarva；Shading treatment is carried out above small size pond culturing pool,
When long fin kiss prelarva length is to 5 age in days-6 age in days, starting a small amount of wheel animalcule of throwing something and feeding, throw something and feed every day once in small size pond culturing pool, after the wheel animalcule that starts to throw something and feed, small size pond culturing pool is once removed contamination by every day；
Step 2: postlarva is cultivated: in small size pond culturing pool, the long fin kiss prelarva of step 1 cultivation is continued cultivation, until its fin ray basically forms, the inflow of small size pond culturing pool is 0.3-0.5 cube m/h, breeding process uses the mode of micro-aeration, the cultivation density 800-1000 tail/cubic meter of long fin kiss fry；Shading treatment is carried out above small size pond culturing pool,
It is the long fin kiss prelarva of 7 age in days-16 ages in days to the age of a fish, the wheel animalcule 2 times of throwing something and feeding every day, feeding volume is that in water body, wheel animalcule density is 0.5/milliliter, once removes contamination small size pond culturing pool every day,
Being the long fin kiss prelarva of 17 age in days-23 ages in days to the age of a fish, stop throwing something and feeding wheel animalcule, starts artifical compound feed of throwing something and feeding, throw something and feed every day artifical compound feed 2 times, after throwing something and feeding, small size pond culturing pool is removed contamination in time every time, and to change percentage by weight in small size pond culturing pool be the water yield of 60%-80%
Step 3: postlarva is cultivated: in small size pond culturing pool, long fin kiss prelarva is continued cultivation, until its squama has been grown, the inflow of small size pond culturing pool is 0.8-1 cube m/h, uses the mode of micro-aeration, the cultivation density 300-600 tail/cubic meter of long fin kiss postlarva in breeding process；Shading treatment is carried out above small size pond culturing pool,
Throw something and feed every day artifical compound feed 2 times, after throwing something and feeding, small size pond culturing pool removed contamination in time every time, and to change percentage by weight in small size pond culturing pool be the water yield of 60%-80%,
In above-mentioned steps 1-3,
After long fin kiss fry initial feeding, every 7-10 day the long fin in small size pond culturing pool is kissed fry and turn pond process, and small size pond culturing pool before is carried out disinfection, dries process；
Artifical compound feed is to add garlicin and chitosan, and the artifical compound feed formed after dry with water mix homogeneously dry in the sun in mixed feed, and the addition of garlicin is the 1-3% of mixed feed weight, and the addition of chitosan is the 0.5-2% of mixed feed weight,
In small size pond culturing pool, take 3-5 tail long fin kiss fry every day at random, observe the most parasitic little melonworm of its body surface, once find that fish body body surface has small particles, takes dipping to treat immediately.
The method of dipping treatment is:
A, when find long fin kiss fry outburst ichthyophthiriasis time, splash in the small size pond culturing pool that cultivation has the long fin of band small particles to kiss immediately methylene blue, make the methylene blue concentration in its water body reach 0.5-2ppm and make liquid for medicinal bath, making long fin kiss soak 3-6 hour in liquid for medicinal bath, the inflow in immersion process medium and small aquifer cultivation pond is 0 cube m/h；
B, soaked after open the water inlet pipe of small size pond culturing pool, make long fin kiss fry again soak 10-12 hour in water；
C, all long fin of above-mentioned small size pond culturing pool is kissed turn pond and process；
After carrying out dipping for the first time, within every two days, carry out dipping treatment again, during dipping, stop feeding, artifical compound feed used by a step 2 of throwing something and feeding in 10 hours after turning pond；
Within every 6 days, it is a dipping treatment cycle, with treatment to long fin kiss, small particles disappears.
In step 1-3, small size pond culturing pool be cross section be circular culturing pool, a diameter of 1 meter, depth of water when cultivating long fin kiss fry is 0.5 meter.
In step 1-3, the gentle stone of oxygen increasing pump is used to carry out micro-aeration.
In artifical compound feed, the addition of garlicin is preferably the 1% of mixed feed weight, and the addition of chitosan is preferably the 0.5% of mixed feed weight.
A kind of intensive culture method improving long fin kiss seed rearing survival rate that the present invention provides, has the beneficial effect that:
1, for the life cycle of little melonworm; in the seed rearing stage, little melonworm is carried out effectively preventing; greatly reduce long fin kiss seed and break out the probability of little melonworm, significantly improve the survival rate of long fin kiss seed rearing, lay the foundation for breaking through long fin kiss scale rearing of fingerling.
2, according to the feeding habit of long fin kiss seed, quickly turn food mixed feed in its larval stages, reduce biological feed of throwing something and feeding and bring ichthyophthiriasis substance, greatly reduce the probability of little melonworm outburst.
3, improve the immunity of long fin kiss fry by mixing food chitosan in feedstuff, and by the high-frequency pond that turns, change breeding environment, reduce water body medium and small melonworm encapsulation and the quantity of grazing eclipse polypide, reduce its probability infecting fry.
4, when the long fin kiss fry of ichthyophthiriasis is suffered from treatment, the quantity of water body medium and small melonworm grazing eclipse polypide is killed by medicine methylene blue, and by frequently changing breeding environment, reduce water body medium and small melonworm encapsulation and the quantity of grazing eclipse polypide, cut off the life cycle of little melonworm, thus reach to treat the purpose of ichthyophthiriasis.
Detailed description of the invention
Embodiment one
A kind of intensive culture method improving long fin kiss seed rearing survival rate, the method comprises the following steps:
Step 1: prelarva is cultivated: be that the long fin kiss prelarva of 1 age in days-6 age in days carries out hydrostatic cultivation to the age of a fish in small size pond culturing pool, use the mode of micro-aeration in breeding process, the cultivation density 800-1000 tail/cubic meter of long fin kiss prelarva；Shading treatment is carried out above small size pond culturing pool,
When long fin kiss prelarva length is to 5 age in days-6 age in days, a small amount of wheel animalcule (feeding volume is that in water body, wheel animalcule density is 0.1/milliliter) of throwing something and feeding is started in small size pond culturing pool, throw something and feed once every day (8:30 in morning), and after the wheel animalcule that starts to throw something and feed, small size pond culturing pool is once removed contamination by every day；
Step 2: postlarva is cultivated: in small size pond culturing pool, the long fin kiss prelarva of step 1 cultivation is continued cultivation, until its fin ray basically forms, the inflow of small size pond culturing pool is 0.3-0.5 cube m/h, breeding process uses the mode of micro-aeration, the cultivation density 800-1000 tail/cubic meter of long fin kiss fry；Shading treatment is carried out above small size pond culturing pool,
It is the long fin kiss prelarva of 7 age in days-16 ages in days to the age of a fish, wheel animalcule 2 times (morning, 8:30 and 7:00 in evening respectively threw something and fed once) of throwing something and feeding every day, feeding volume is that in water body, wheel animalcule density is 0.5/milliliter, once removes contamination small size pond culturing pool every day,
It it is the long fin kiss prelarva of 17 age in days-23 ages in days to the age of a fish, stop throwing something and feeding wheel animalcule, start artifical compound feed of throwing something and feeding, throw something and feed every day artifical compound feed 2 times (morning, 8:30 and 7:00 in evening respectively threw something and fed once), after throwing something and feeding, small size pond culturing pool is removed contamination in time every time, and to change percentage by weight in small size pond culturing pool be the water yield of 60%-80%
Step 3: postlarva is cultivated: in small size pond culturing pool, long fin kiss prelarva is continued cultivation, until its squama has been grown, the inflow of small size pond culturing pool is 0.8-1 cube m/h, uses the mode of micro-aeration, the cultivation density 300-600 tail/cubic meter of long fin kiss postlarva in breeding process；Shading treatment is carried out above small size pond culturing pool,
Throw something and feed every day artifical compound feed 2 times (morning, 8:30 and 7:00 in evening respectively threw something and fed once), after throwing something and feeding, small size pond culturing pool removed contamination in time every time, and to change percentage by weight in small size pond culturing pool be the water yield of 60%-80%,
In above-mentioned steps 1-3,
After long fin kiss fry opening food, every 7-10 day the long fin in small size pond culturing pool is kissed fry and turn pond process, and small size pond culturing pool before is carried out disinfection, dries process；
Artifical compound feed is to add garlicin and chitosan, and the artifical compound feed formed after dry with water mix homogeneously dry in the sun in mixed feed, and the addition of garlicin is the 1% of mixed feed weight；The addition of chitosan is the 0.5 of mixed feed weight；
Mixed feed uses Shandong to rise the sub-feedstuff of Acipenser Sinensis private particle and the children compound feed used for fish S1 of the production of rope fish feed research center.
In small size pond culturing pool, take 3-5 tail long fin kiss fry every day at random, observe the most parasitic little melonworm of its body surface, once find that fish body body surface has small particles, takes dipping to treat immediately.
The method of dipping treatment is:
A, when find long fin kiss fry outburst ichthyophthiriasis time, splash in the small size pond culturing pool that cultivation has the long fin of band small particles to kiss immediately methylene blue, make the methylene blue concentration in its water body reach 0.5-2ppm and make liquid for medicinal bath, making long fin kiss soak 3-6 hour in liquid for medicinal bath, the inflow in immersion process medium and small aquifer cultivation pond is 0 cube m/h；
B, soaked after open the water inlet pipe of small size pond culturing pool, inflow is 0.3-1 cube m/h, makes long fin kiss again soak in water 12 hours；
C, all long fin of above-mentioned small size pond culturing pool is kissed turn pond and process；
After carrying out dipping for the first time, within every two days, carry out dipping treatment again, during dipping, stop feeding, artifical compound feed used by a step 2 of throwing something and feeding in 10 hours after turning pond；
Within every 6 days, it is a dipping treatment cycle, treats to long fin kiss small particles disappearance (generally need to treat three dipping treatment cycle), then select step 1 or 2 or 3 to cultivate according to the age of a fish the long fin kiss in small size pond culturing pool.
In step 1-3, small size pond culturing pool be cross section be circular culturing pool, a diameter of 1 meter, depth of water when cultivating long fin kiss fry is 0.5 meter.
In step 1-3, the gentle stone of oxygen increasing pump is used to carry out micro-aeration.
Embodiment two
A kind of intensive culture method improving long fin kiss seed rearing survival rate, the method comprises the following steps:
Step 1: prelarva is cultivated: be that the long fin kiss prelarva of 1 age in days-6 age in days carries out hydrostatic cultivation to the age of a fish in small size pond culturing pool, use the mode of micro-aeration in breeding process, the cultivation density 800-1000 tail/cubic meter of long fin kiss prelarva；Shading treatment is carried out above small size pond culturing pool,
When long fin kiss prelarva length is to 5 age in days-6 age in days, a small amount of wheel animalcule (feeding volume is that in water body, wheel animalcule density is 0.1/milliliter) of throwing something and feeding is started in small size pond culturing pool, throw something and feed once every day (8:30 in morning), and after the wheel animalcule that starts to throw something and feed, small size pond culturing pool is once removed contamination by every day；
Step 2: postlarva is cultivated: in small size pond culturing pool, the long fin kiss prelarva of step 1 cultivation is continued cultivation, until its fin ray basically forms, the inflow of small size pond culturing pool is 0.3-0.5 cube m/h, breeding process uses the mode of micro-aeration, the cultivation density 800-1000 tail/cubic meter of long fin kiss fry；Shading treatment is carried out above small size pond culturing pool,
It is the long fin kiss prelarva of 7 age in days-16 ages in days to the age of a fish, wheel animalcule 2 times (morning, 8:30 and 7:00 in evening respectively threw something and fed once) of throwing something and feeding every day, feeding volume is that in water body, wheel animalcule density is 0.5/milliliter, once removes contamination small size pond culturing pool every day,
It it is the long fin kiss prelarva of 17 age in days-23 ages in days to the age of a fish, stop throwing something and feeding wheel animalcule, start artifical compound feed of throwing something and feeding, throw something and feed every day artifical compound feed 2 times (morning, 8:30 and 7:00 in evening respectively threw something and fed once), after throwing something and feeding, small size pond culturing pool is removed contamination in time every time, and to change percentage by weight in small size pond culturing pool be the water yield of 60%-80%
Step 3: postlarva is cultivated: in small size pond culturing pool, long fin kiss prelarva is continued cultivation, until its squama has been grown, the inflow of small size pond culturing pool is 0.8-1 cube m/h, uses the mode of micro-aeration, the cultivation density 300-600 tail/cubic meter of long fin kiss postlarva in breeding process；Shading treatment is carried out above small size pond culturing pool,
Throw something and feed every day artifical compound feed 2 times (morning, 8:30 and 7:00 in evening respectively threw something and fed once), after throwing something and feeding, small size pond culturing pool removed contamination in time every time, and to change percentage by weight in small size pond culturing pool be the water yield of 60%-80%,
In above-mentioned steps 1-3,
After long fin kiss fry opening food, every 7-10 day the long fin in small size pond culturing pool is kissed fry and turn pond process, and small size pond culturing pool before is carried out disinfection, dries process；
Artifical compound feed is to add garlicin and chitosan, and the artifical compound feed formed after dry with water mix homogeneously dry in the sun in mixed feed, and the addition of garlicin is the 3% of mixed feed weight；The addition of chitosan is the 2% of mixed feed weight；
Mixed feed uses Shandong to rise the sub-feedstuff of Acipenser Sinensis private particle and the children compound feed used for fish S1 of the production of rope fish feed research center.
In small size pond culturing pool, take 3-5 tail long fin kiss fry every day at random, observe the most parasitic little melonworm of its body surface, once find that fish body body surface has small particles, takes dipping to treat immediately.
The method of dipping treatment is:
A, when find long fin kiss fry outburst ichthyophthiriasis time, splash in the small size pond culturing pool that cultivation has the long fin of band small particles to kiss immediately methylene blue, make the methylene blue concentration in its water body reach 0.5-2ppm and make liquid for medicinal bath, making long fin kiss soak 3-6 hour in liquid for medicinal bath, the inflow in immersion process medium and small aquifer cultivation pond is 0 cube m/h；
B, soaked after open the water inlet pipe of small size pond culturing pool, inflow is 0.3-1 cube m/h, makes long fin kiss again soak in water 10 hours；
C, all long fin of above-mentioned small size pond culturing pool is kissed turn pond and process；
After carrying out dipping for the first time, within every two days, carry out dipping treatment again, during dipping, stop feeding, artifical compound feed used by a step 2 of throwing something and feeding in 10 hours after turning pond；
Within every 6 days, it is a dipping treatment cycle, treats to long fin kiss small particles disappearance (generally need to treat three dipping treatment cycle), then select step 1 or 2 or 3 to cultivate according to the age of a fish the long fin kiss in small size pond culturing pool.
In step 1-3, small size pond culturing pool be cross section be circular culturing pool, a diameter of 1 meter, depth of water when cultivating long fin kiss fry is 0.5 meter.
In step 1-3, the gentle stone of oxygen increasing pump is used to carry out micro-aeration.
Embodiment three
A kind of intensive culture method improving long fin kiss seed rearing survival rate, the method comprises the following steps:
Step 1: prelarva is cultivated: be that the long fin kiss prelarva of 1 age in days-6 age in days carries out hydrostatic cultivation to the age of a fish in small size pond culturing pool, use the mode of micro-aeration in breeding process, the cultivation density 800-1000 tail/cubic meter of long fin kiss prelarva；Shading treatment is carried out above small size pond culturing pool,
When long fin kiss prelarva length is to 5 age in days-6 age in days, a small amount of wheel animalcule (feeding volume is that in water body, wheel animalcule density is 0.1/milliliter) of throwing something and feeding is started in small size pond culturing pool, throw something and feed once every day (8:30 in morning), and after the wheel animalcule that starts to throw something and feed, small size pond culturing pool is once removed contamination by every day；
Step 2: postlarva is cultivated: in small size pond culturing pool, the long fin kiss prelarva of step 1 cultivation is continued cultivation, until its fin ray basically forms, the inflow of small size pond culturing pool is 0.3-0.5 cube m/h, breeding process uses the mode of micro-aeration, the cultivation density 800-1000 tail/cubic meter of long fin kiss fry；Shading treatment is carried out above small size pond culturing pool,
It is the long fin kiss prelarva of 7 age in days-16 ages in days to the age of a fish, wheel animalcule 2 times (morning, 8:30 and 7:00 in evening respectively threw something and fed once) of throwing something and feeding every day, feeding volume is that in water body, wheel animalcule density is 0.5/milliliter, once removes contamination small size pond culturing pool every day,
It it is the long fin kiss prelarva of 17 age in days-23 ages in days to the age of a fish, stop throwing something and feeding wheel animalcule, start artifical compound feed of throwing something and feeding, throw something and feed every day artifical compound feed 2 times (morning, 8:30 and 7:00 in evening respectively threw something and fed once), after throwing something and feeding, small size pond culturing pool is removed contamination in time every time, and to change percentage by weight in small size pond culturing pool be the water yield of 60%-80%
Step 3: postlarva is cultivated: in small size pond culturing pool, long fin kiss prelarva is continued cultivation, until its squama has been grown, the inflow of small size pond culturing pool is 0.8-1 cube m/h, uses the mode of micro-aeration, the cultivation density 300-600 tail/cubic meter of long fin kiss postlarva in breeding process；Shading treatment is carried out above small size pond culturing pool,
Throw something and feed every day artifical compound feed 2 times (morning, 8:30 and 7:00 in evening respectively threw something and fed once), after throwing something and feeding, small size pond culturing pool removed contamination in time every time, and to change percentage by weight in small size pond culturing pool be the water yield of 60%-80%,
In above-mentioned steps 1-3,
After long fin kiss fry opening food, every 7-10 day the long fin in small size pond culturing pool is kissed fry and turn pond process, and small size pond culturing pool before is carried out disinfection, dries process；
Artifical compound feed is to add garlicin and chitosan, and the artifical compound feed formed after dry with water mix homogeneously dry in the sun in mixed feed, and the addition of garlicin is the 2% of mixed feed weight；The addition of chitosan is the 1.5% of mixed feed weight；
Mixed feed uses Shandong to rise the sub-feedstuff of Acipenser Sinensis private particle and the children compound feed used for fish S1 of the production of rope fish feed research center.
In small size pond culturing pool, take 3-5 tail long fin kiss fry every day at random, observe the most parasitic little melonworm of its body surface, once find that fish body body surface has small particles, takes dipping to treat immediately.
The method of dipping treatment is:
A, when find long fin kiss fry outburst ichthyophthiriasis time, splash in the small size pond culturing pool that cultivation has the long fin of band small particles to kiss immediately methylene blue, make the methylene blue concentration in its water body reach 0.5-2ppm and make liquid for medicinal bath, making long fin kiss soak 3-6 hour in liquid for medicinal bath, the inflow in immersion process medium and small aquifer cultivation pond is 0 cube m/h；
B, soaked after open the water inlet pipe of small size pond culturing pool, inflow is 0.3-1 cube m/h, makes long fin kiss again soak in water 11 hours；
C, all long fin of above-mentioned small size pond culturing pool is kissed turn pond and process；
After carrying out dipping for the first time, within every two days, carry out dipping treatment again, during dipping, stop feeding, artifical compound feed used by a step 2 of throwing something and feeding in 10 hours after turning pond；
Within every 6 days, it is a dipping treatment cycle, treats to long fin kiss small particles disappearance (generally need to treat three dipping treatment cycle), then select step 1 or 2 or 3 to cultivate according to the age of a fish the long fin kiss in small size pond culturing pool.
In step 1-3, small size pond culturing pool be cross section be circular culturing pool, a diameter of 1 meter, depth of water when cultivating long fin kiss fry is 0.5 meter.
In step 1-3, the gentle stone of oxygen increasing pump is used to carry out micro-aeration.
Claims (5)
1. the intensive culture method improving long fin kiss seed rearing survival rate, it is characterised in that the method comprises the following steps:
Step 1: prelarva is cultivated: be that the long fin kiss prelarva of 1 age in days-6 age in days carries out hydrostatic cultivation to the age of a fish in small size pond culturing pool, use the mode of micro-aeration in breeding process, the cultivation density 800-1000 tail/cubic meter of long fin kiss prelarva；Shading treatment is being carried out above small size pond culturing pool,
When long fin kiss prelarva length is to 5 age in days-6 age in days, starting a small amount of wheel animalcule of throwing something and feeding, throw something and feed every day once in small size pond culturing pool, after the wheel animalcule that starts to throw something and feed, small size pond culturing pool is once removed contamination by every day；
Step 2: postlarva is cultivated: in small size pond culturing pool, the long fin kiss prelarva of step 1 cultivation is continued cultivation, until its fin ray basically forms, the inflow of small size pond culturing pool is 0.3-0.5 cube m/h, breeding process uses the mode of micro-aeration, the cultivation density 800-1000 tail/cubic meter of long fin kiss fry；Shading treatment is carried out above small size pond culturing pool,
It is the long fin kiss prelarva of 7 age in days-16 ages in days to the age of a fish, the wheel animalcule 2 times of throwing something and feeding every day, feeding volume is that in water body, wheel animalcule density is 0.5/milliliter, once removes contamination small size pond culturing pool every day,
It it is the long fin kiss prelarva of 17 age in days-23 ages in days to the age of a fish, stop throwing something and feeding wheel animalcule, start artifical compound feed of throwing something and feeding, the artifical compound feed 2 times of throwing something and feeding every day, after throwing something and feeding, small size pond culturing pool is removed contamination in time every time, and to change percentage by weight in small size pond culturing pool be the water yield of 60%-80%；
Step 3: postlarva is cultivated: in small size pond culturing pool, long fin kiss prelarva is continued cultivation, until its squama has been grown, the inflow of small size pond culturing pool is 0.8-1 cube m/h, uses the mode of micro-aeration, the cultivation density 300-600 tail/cubic meter of long fin kiss postlarva in breeding process；Shading treatment is carried out above small size pond culturing pool,
Throw something and feed every day artifical compound feed 2 times, after throwing something and feeding, small size pond culturing pool is removed contamination in time every time, and to change percentage by weight in small size pond culturing pool be the water yield of 60%-80%；
In above-mentioned steps 1-3,
After long fin kiss fry initial feeding, every 7-10 day the long fin in small size pond culturing pool is kissed fry and turn pond process, and small size pond culturing pool before is carried out disinfection, dries process；
Artifical compound feed is to add garlicin and chitosan, and the artifical compound feed formed after dry with water mix homogeneously dry in the sun in mixed feed, and the addition of garlicin is the 1-3% of mixed feed weight, and the addition of chitosan is the 0.5-2% of mixed feed weight,
In small size pond culturing pool, take 3-5 tail long fin kiss fry every day at random, observe the most parasitic little melonworm of its body surface, once find that fish body body surface has small particles, takes dipping to treat immediately.
A kind of intensive culture method improving long fin kiss seed rearing survival rate the most according to claim 1, it is characterised in that: the method for dipping treatment is:
A, when find long fin kiss fry outburst ichthyophthiriasis time, splash in the small size pond culturing pool that cultivation has the long fin of band small particles to kiss immediately methylene blue, make the methylene blue concentration in its water body reach 0.5-2ppm and make liquid for medicinal bath, making long fin kiss soak 3-6 hour in liquid for medicinal bath, the inflow in immersion process medium and small aquifer cultivation pond is 0 cube m/h；
B, soaked after open the water inlet pipe of small size pond culturing pool, make long fin kiss fry again soak 10-12 hour in water；
C, all long fin of above-mentioned small size pond culturing pool is kissed turn pond and process；
After carrying out dipping for the first time, within every two days, carry out dipping treatment again, during dipping, stop feeding, artifical compound feed used by a step 2 of throwing something and feeding in 10 hours after turning pond；
Within every 6 days, it is a dipping treatment cycle, with treatment to long fin kiss, small particles disappears.
A kind of intensive culture method improving long fin kiss seed rearing survival rate the most according to claim 1, it is characterised in that: in step 1-3, small size pond culturing pool be cross section be circular culturing pool, a diameter of 1 meter, depth of water when cultivating long fin kiss fry is 0.5 meter.
A kind of intensive culture method improving long fin kiss seed rearing survival rate the most according to claim 1, it is characterised in that: in step 1-3, use the gentle stone of oxygen increasing pump to carry out micro-aeration.
A kind of intensive culture method improving long fin kiss seed rearing survival rate the most according to claim 1, it is characterised in that: in artifical compound feed, the addition of garlicin is the 1% of mixed feed weight, and the addition of chitosan is the 0.5% of mixed feed weight.
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