CN104839079A - Method and facility for cultivating parents of Sillago sihama indoors on large scale via prawn cultivation wastewater - Google Patents
Method and facility for cultivating parents of Sillago sihama indoors on large scale via prawn cultivation wastewater Download PDFInfo
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- CN104839079A CN104839079A CN201510309356.8A CN201510309356A CN104839079A CN 104839079 A CN104839079 A CN 104839079A CN 201510309356 A CN201510309356 A CN 201510309356A CN 104839079 A CN104839079 A CN 104839079A
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- 241000238557 Decapoda Species 0.000 title claims abstract description 98
- 239000002351 wastewater Substances 0.000 title claims abstract description 48
- 238000000034 method Methods 0.000 title claims abstract description 23
- 241000073173 Sillago sihama Species 0.000 title abstract description 5
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 87
- 241000251468 Actinopterygii Species 0.000 claims abstract description 43
- 238000009395 breeding Methods 0.000 claims abstract description 28
- 230000001488 breeding effect Effects 0.000 claims abstract description 28
- 239000004568 cement Substances 0.000 claims abstract description 14
- 238000005086 pumping Methods 0.000 claims abstract description 11
- 238000012258 culturing Methods 0.000 claims description 67
- 230000000384 rearing effect Effects 0.000 claims description 33
- 230000015556 catabolic process Effects 0.000 claims description 21
- 238000006731 degradation reaction Methods 0.000 claims description 21
- 238000005273 aeration Methods 0.000 claims description 14
- 230000002354 daily effect Effects 0.000 claims description 13
- 230000037396 body weight Effects 0.000 claims description 11
- 230000003203 everyday effect Effects 0.000 claims description 10
- 238000012851 eutrophication Methods 0.000 claims description 6
- 238000009360 aquaculture Methods 0.000 claims description 5
- 244000144974 aquaculture Species 0.000 claims description 5
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims description 5
- 239000001301 oxygen Substances 0.000 claims description 5
- 229910052760 oxygen Inorganic materials 0.000 claims description 5
- 238000012216 screening Methods 0.000 claims description 5
- 238000004659 sterilization and disinfection Methods 0.000 claims description 5
- 239000003337 fertilizer Substances 0.000 claims description 2
- 230000000284 resting effect Effects 0.000 claims description 2
- 230000004083 survival effect Effects 0.000 abstract description 10
- 235000016709 nutrition Nutrition 0.000 abstract description 5
- 230000035764 nutrition Effects 0.000 abstract description 5
- 230000000593 degrading effect Effects 0.000 abstract description 4
- 230000008901 benefit Effects 0.000 abstract description 2
- 241001465754 Metazoa Species 0.000 abstract 1
- 239000003674 animal food additive Substances 0.000 abstract 1
- 150000001875 compounds Chemical class 0.000 abstract 1
- 230000003247 decreasing effect Effects 0.000 abstract 1
- 230000000087 stabilizing effect Effects 0.000 abstract 1
- 238000005276 aerator Methods 0.000 description 8
- 241000195493 Cryptophyta Species 0.000 description 5
- ODINCKMPIJJUCX-UHFFFAOYSA-N Calcium oxide Chemical compound [Ca]=O ODINCKMPIJJUCX-UHFFFAOYSA-N 0.000 description 4
- 230000007423 decrease Effects 0.000 description 4
- 235000015097 nutrients Nutrition 0.000 description 4
- 239000005416 organic matter Substances 0.000 description 4
- 230000008569 process Effects 0.000 description 4
- 241001247197 Cephalocarida Species 0.000 description 3
- 241000239250 Copepoda Species 0.000 description 3
- XSQUKJJJFZCRTK-UHFFFAOYSA-N Urea Chemical compound NC(N)=O XSQUKJJJFZCRTK-UHFFFAOYSA-N 0.000 description 3
- 239000000654 additive Substances 0.000 description 3
- 230000000996 additive effect Effects 0.000 description 3
- 235000021405 artificial diet Nutrition 0.000 description 3
- YYRMJZQKEFZXMX-UHFFFAOYSA-N calcium;phosphoric acid Chemical compound [Ca+2].OP(O)(O)=O.OP(O)(O)=O YYRMJZQKEFZXMX-UHFFFAOYSA-N 0.000 description 3
- 239000004202 carbamide Substances 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 238000001914 filtration Methods 0.000 description 3
- 239000013535 sea water Substances 0.000 description 3
- 235000015170 shellfish Nutrition 0.000 description 3
- 239000002426 superphosphate Substances 0.000 description 3
- 230000001988 toxicity Effects 0.000 description 3
- 231100000419 toxicity Toxicity 0.000 description 3
- 102000001999 Transcription Factor Pit-1 Human genes 0.000 description 2
- 108010040742 Transcription Factor Pit-1 Proteins 0.000 description 2
- 239000000292 calcium oxide Substances 0.000 description 2
- 235000012255 calcium oxide Nutrition 0.000 description 2
- 241000489963 Anabantoidei Species 0.000 description 1
- ZKQDCIXGCQPQNV-UHFFFAOYSA-N Calcium hypochlorite Chemical compound [Ca+2].Cl[O-].Cl[O-] ZKQDCIXGCQPQNV-UHFFFAOYSA-N 0.000 description 1
- 102000002322 Egg Proteins Human genes 0.000 description 1
- 108010000912 Egg Proteins Proteins 0.000 description 1
- 241000269799 Perca fluviatilis Species 0.000 description 1
- 241000276618 Perciformes Species 0.000 description 1
- 241000276615 Percoidei Species 0.000 description 1
- 241001417490 Sillaginidae Species 0.000 description 1
- 241000168311 Sillago Species 0.000 description 1
- 241000209140 Triticum Species 0.000 description 1
- 235000021307 Triticum Nutrition 0.000 description 1
- 238000009825 accumulation Methods 0.000 description 1
- 230000004888 barrier function Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000007844 bleaching agent Substances 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 239000003653 coastal water Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 230000005284 excitation Effects 0.000 description 1
- 235000013305 food Nutrition 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 210000004681 ovum Anatomy 0.000 description 1
- 239000000047 product Substances 0.000 description 1
- 230000001737 promoting effect Effects 0.000 description 1
- 239000004576 sand Substances 0.000 description 1
- 230000006641 stabilisation Effects 0.000 description 1
- 238000011105 stabilization Methods 0.000 description 1
- 239000000758 substrate Substances 0.000 description 1
- 239000013589 supplement Substances 0.000 description 1
Classifications
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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
- A01K63/00—Receptacles for live fish, e.g. 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
-
- 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)
- Farming Of Fish And Shellfish (AREA)
Abstract
The invention discloses a method and a facility for cultivating parents of Sillago sihama indoors on a large scale via prawn cultivation wastewater and belongs to the technical field of artificial breeding of fishes. The facility is composed of two to three prawn cultivation ponds 0.07 to 0.2 hm<2>, two to four outdoor cultivation wastewater degrading pools 50M<3> in volume, a parent cultivation cement pond located in an indoor controllable light parent cultivation shop, and a water pumping system. The cultivation wastewater obtained in mid-late phase of prawn cultivation is biologically treated, organics in the cultivation wastewater are degraded, and the cultivation wastewater is then used in the indoor cement pond for cultivating the parents of Sillago sihama on the large scale, animal planktons in the degraded water are used as feed additive for the parents, the lost nutrition in compound feed can be supplemented, and female and male parents are enabled to be more mature; microalgae are good for stabilizing the parent cultivation water. The method has the advantages that the prawn cultivation wastewater is made effective use, environment pollution is decreased, survival rate of Sillago sihama cultivated on the large scale in the indoor shop is increased, and quality of zygotes is increased.
Description
Technical field
The present invention relates to the method for massively culturing of a kind of Duo Lin Xi parent population, specifically a kind of method and facility utilizing prawn culturing waste water indoor scale cultivation Duo Lin Xi parent population, belongs to the artificial breeding technology field of fish.
Background technology
Duo Lin Xi
sillago sihama Forsk á l, be commonly called as sand borer, ship fourth fish, the wheat head, body length can reach 300mm, is under the jurisdiction of Perciformes
perciformes, Anabantoidei
percoidei, perch Superfamily
percoidea, Xi section
sillaginidae, Xi belongs to
sillago.Be distributed widely in China coast and Australia, India, Indonesia, Philippine and Japan.Fishing season for best fishing period with spring, season in summer two, is the important economic fish of China coast, once in inshore fishing operation, occupied considerable position, but due to overfishing in recent years, individuality becomes younger, and colony becomes littleization, and output reduces year by year.
Duo Lin Xi finished product fish specification is little, and aquaculture management is comparatively easy, and the high and suitable multiple breeding way of cultivation survival rate, better economic benefit, has wide industrialization breeding prospect.Patent CN102919186B discloses wild Duo Lin Xi parent population indoor water mud sump and raises and train and support technology with the environmental condition of reinforced cultivating, feed collocation and pipe.But in parent fish rearing process, chilled bait and artitificial food is used because of a large amount of, water quality easily worsens, and change water in a large number and be unfavorable for water stabilization, and transparency is high, the easily frightened and excitation activity of parent population, cause mechanical damage and dead, during by cultivating Micro Algae head it off, because indoor luminosity is not enough, causing algae dead and affecting water quality.How to stablize cultivation water colour, become the technical barrier of the indoor parent fish rearing of Duo Lin Xi.The prawn culturing middle and later periods, because of the accumulation of organic matter, having a large amount of Micro Algaes (mixed algae) and zooplankton in water body and enter sea as breeding wastewater, is one of root of coastal waters, China South Sea eutrophication.Prawn culturing waste water, through degrading and using Duo Lin Xi parent population indoor culture, can effectively stablize water colour and water quality, and in water body, zooplankton can be the additive of bait of parent population, effectively can improve the survival rate of parent population and the quality of ovum.Up to now, still do not appear in the newspapers about the facility and method thereof that utilize prawn culturing waste water large-scale cultivation Duo Lin Xi parent population.
Summary of the invention
The object of this invention is to provide a kind of method utilizing prawn culturing waste water indoor scale to cultivate Duo Lin Xi parent population, the method adopts by prawn culturing pond, wastewater degradation pond, indoor controllable light parent fish rearing workshop, the cultivation facility of parent fish rearing pond and pumping system composition, utilize prawn culturing middle and later periods breeding wastewater, by waste water through biotechnology process, degrade after its organic matter for indoor water mud sump Duo Lin Xi parent population large-scale cultivation, to utilize the zooplankton in water body as the additive of bait of parent population, utilize micro-algae for stable Duo Lin Xi parent fish rearing water colour and water quality, effectively can improve the quality of large-scale cultivation survival rate and fertilized egg between Duo Lin Xi parent population indoor cart.
Technical scheme of the present invention is as follows: a kind of method utilizing prawn culturing waste water indoor scale to cultivate Duo Lin Xi parent population, adopts following steps:
(1) cultivate facility to build: select area 0.07 ~ 0.2 hm
22 ~ 3 mouthfuls, prawn culturing pond, 50m
32 ~ 3 mouthfuls, outdoor breeding wastewater degradation pond, the parent population aquaculture water mud sump being positioned at indoor controllable light parent fish rearing workshop and pumping system; Described prawn culturing pond is cement pit, is equipped with drainage and aeration system; Described controllable light parent fish rearing workshop refers to the Duo Lin Xi parent fish rearing workshop being equipped with control light, temperature control, water supply, dirt eliminating function; Described pumping system refers to water pump and the pipeline resting from prawn culturing pond and grow waste water and be evacuated to outdoor wastewater degradation pond and be evacuated to indoor parent fish rearing pond from degraded pond;
(2) prawn culturing: by prawn culturing technical specification carry out disinfection pond, apply fertilizer, put seedling and pipe support, in prawn culturing pond, carry out the cultivation of prawn, when prawn grows to long more than the 6cm of body, Chi Shui is yellow green or dark brown, transparency 25 ~ 40cm, when pH value 7.5 ~ 9.0, stand-by;
(3) prawn culturing wastewater degradation: when reaching the pond water condition of step (2), Chi Shui in prawn culturing pond is extracted into outdoor breeding wastewater degradation pond by pumping system, natural lighting, through aeration system inflation cultivation 2 ~ 3 days, the organic matter of degrading waste water, Micro Algae and zooplankton are bred further, obtains the prawn culturing waste water after degraded, stand-by;
(4) parent fish rearing: through pumping system the prawn culturing waste water after degraded is evacuated to the parent population aquaculture water mud sump in controllable light parent fish rearing workshop by pumping system, luminosity is adjusted to 1500 lx ~ 2500lx, the Duo Lin Xi of screening more than 40g, as parent population, is 10 ~ 15 tails/m according to breeding density
2carry out parent fish rearing; Throw something and feed special Duo Lin Xi manufactured feed, throw something and feed the medium-and-large-sized zooplankton in prawn culturing wastewater degradation pond in interval for one day, daily ration of feeding is 5 ~ 8% of fish body weight, throws something and feeds every day 2 times; Cultivate water temperature 28 ~ 31 DEG C, salinity 26 ~ 31, pH value 8.2 ~ 8.5, DO value 5.0 ~ 7.0mg/L, every day changes the prawn culturing waste water after degraded, day quantity of exchanged water 100% ~ 200%, inflation cultivation.
Preferably, during described step (4) parent fish rearing, luminosity 2000 lx, breeding density 12 tails/m
2.
Further preferred, during described step (4) parent fish rearing, cultivate water temperature 30 ± 0.5 DEG C, salinity 26 ~ 31, pH value 8.2 ~ 8.5, DO value 6.0 ± 0.5mg/L, day quantity of exchanged water 150%.
In the inventive method, during prawn culturing, fertilizing amount will adjust according to shrimp pool substrate situation; At prawn culturing in earlier stage, take interval to drive aerator according to water quality condition, extend the aerator available machine time gradually subsequently, to ensure that the content of pond water dissolved oxygen is not less than 5mg/L.In parent fish rearing process, bait feeding amount suitably should increase and decrease according to weather, water quality and situation of ingesting.
The present invention is as follows relative to the beneficial effect of prior art: the present invention by prawn culturing middle and later periods breeding wastewater through biotechnology process, for indoor water mud sump Duo Lin Xi parent population large-scale cultivation after its organic matter of degrading.In the prawn culturing middle and later periods, breeding water body eutrophication, micro-algae and zooplankton amount reproduction, the prawn of middle and later periods cannot ingest zooplankton, now, the eutrophic water in prawn culturing pond is carried out aeration, is exposed to the sun, make the phytoplankton in water body make full use of the nutrient of water body, quick growth, and then the growth promoting zooplankton; Using the additive of bait of zooplankton medium-and-large-sized for prawn culturing wastewater degradation pond as parent population, the mode adopting interval to throw something and feed, can supplement the nutrition lacked in manufactured feed, impel female, male parent population ripe further; Micro-algae is then conducive to the cultivation water quality of stable parent population.The inventive method effectively can improve the quality of large-scale cultivation survival rate and fertilized egg between Duo Lin Xi parent population indoor cart.
Embodiment
Be described in further details the present invention below by embodiment, these embodiments are only used for the present invention is described, do not limit the scope of the invention.
Embodiment 1 adopts following steps to realize the present invention:
One, method
1, facility is selected: the outdoor prawn culturing cement pit 2 mouthfuls choosing marine organisms study base, Guangdong Ocean University East Sea Island, area 0.07 hm
2, and being equipped with drainage and aeration system, aeration system is turbine type aerator; 50m
33, outdoor breeding wastewater degradation pond; Be positioned at the cement pit in indoor controllable light parent fish rearing workshop.
2, prawn culturing:
(1) after the water of outdoor prawn culturing cement pit drains, the quicklime of per hectare 1200kg carries out disinfection, and through 5 days, after toxicity, the seawater of decimated filtration enters in pond, makes water level reach 1.5m; Execute urea 75kg/ hm
2, superphosphate 7.5kg/ hm
2carry out the cultivation of foundation bait biology;
(2) in water body during foundation bait raised growth, Chi Shui is dark brown, water quality transparency 35 ~ 40cm, and adjusted to ph, 8.0, throws in the prawn larvae 2,250,000 tails/hm of 0.8 ~ 1.0cm
2, carry out prawn culturing; Cultivation takes interval to drive aerator depending on water quality condition early stage, extends the available machine time gradually subsequently, to ensure that the content of pond water dissolved oxygen is at more than 5mg/L;
(3) to throw something and feed corresponding artificial diet according to prawn kind, specification, cultivation early stage (the long 1 ~ 3cm of prawn body) daily ration of feeding is 8% of shrimp body weight, mid-term (the long 3 ~ 10cm of prawn body) 5%, cultivation later stage daily ration of feeding is 3% of shrimp body weight, every day repeatedly throws something and feeds, and night, feeding volume accounted for 65% of total feeding volume.
3, prawn culturing wastewater degradation: prawn culturing middle and later periods, breeding water body eutrophication, micro-algae and zooplankton amount reproduction, the zooplankton and the prawn of middle and later periods cannot ingest, now, is extracted into 50m by the eutrophic water in prawn culturing pond
3outdoor breeding pond, carries out aeration, is exposed to the sun 3 days, make the phytoplankton in water body make full use of the nutrient of water body, grow fast, and then promotes the growth of zooplankton; Obtain macrozooplankton, as cladocera, copepoda, small-sized shell-fish etc.
4, parent fish rearing: the Duo Lin Xi of screening more than 50g, is put into the 30m that 3 are positioned at indoor controllable light parent fish rearing workshop
3cultivate in cement pit, breeding density is 12 tails/m
2; Throw something and feed every day special Duo Lin Xi manufactured feed, throwing something and feeding the medium-and-large-sized zooplankton in prawn culturing wastewater degradation pond in interval for one day, with the nutrition lacked in supplementary manufactured feed, impels female, male parent population ripe further; Bait daily ration of feeding is 6% of fish body weight, and the bait throwing in time at the morning about 8: 00 and afternoon about 17:00, and suitably increases and decreases according to weather, water quality and situation of ingesting; Control water temperature 28 ~ 31 DEG C, salinity 26 ~ 31, pH value 8.2 ~ 8.5, DO value 5.0 ~ 7.0mg/L, day quantity of exchanged water 100% ~ 200%, the low light level, inflation.
Two, result: this cultivates Duo Lin Xi parent population 706 tail, survival rate 89.9%.
Embodiment 2
One, method
1, cultivate facility to select: the outdoor prawn culturing cement pit 2 mouthfuls choosing marine organisms study base, Guangdong Ocean University East Sea Island, area 0.1 hm
2, and being equipped with drainage and aeration system, aeration system is turbine type aerator; 50m
34, outdoor breeding wastewater degradation pond; Indoor controllable light parent fish rearing workshop.
2, prawn culturing:
(1) after the water of outdoor prawn culturing cement pit drains, per hectare 600kg bleaching powder carries out disinfection, and after 3 days, after toxicity, the seawater of decimated filtration is included in pond, makes water level reach 1.8m; Execute urea 90kg/ hm
2, superphosphate 9.0kg/ hm
2;
(2) in water body during foundation bait raised growth, Chi Shui is yellow green, water quality transparency 25 ~ 35cm, adjust ph 8.5, throws in 0.8 ~ 1.0cm prawn larvae 180,000 tail, carries out prawn culturing; Cultivation should take interval to drive aerator depending on water quality condition early stage, extends the available machine time gradually subsequently, ensures that the content of pond water dissolved oxygen is at more than 5mg/L;
(3) to throw something and feed corresponding artificial diet according to prawn kind, specification, daily ration, feeding quantity also should be determined according to factors such as the size of shrimp, survival rate, water quality, weather, feeding qualities, cultivation early stage (the long 1 ~ 3cm of prawn body) daily ration of feeding is 10% of shrimp body weight, mid-term (3 ~ 10cm) 6%, later stage daily ration of feeding is 3% of shrimp body weight, every day repeatedly throws something and feeds, and night, feeding volume accounted for 70%.
3, prawn culturing wastewater degradation: prawn culturing middle and later periods, breeding water body eutrophication, micro-algae and zooplankton amount reproduction, the zooplankton and the prawn of middle and later periods cannot ingest, now, is extracted into 50m by the eutrophic water in prawn culturing pond
3outdoor breeding pond, carries out aeration, is exposed to the sun 3 days, make the phytoplankton in water body make full use of the nutrient of water body, grow fast, and then promotes the growth of zooplankton; Obtain macrozooplankton, as cladocera, copepoda, small-sized shell-fish etc.
4, parent fish rearing: the Duo Lin Xi of screening more than 70g, is put into the 30m in indoor controllable light parent fish rearing workshop
3cultivate in cement pit, breeding density is 13 tails/m
2; Throw something and feed every day special Duo Lin Xi manufactured feed, throwing something and feeding the medium-and-large-sized zooplankton in prawn culturing wastewater degradation pond in interval for one day, with the nutrition lacked in supplementary manufactured feed, impels female, male parent population ripe further; Daily ration of feeding is 8% of fish body weight, and the bait throwing in time at the morning 9: 00 and afternoon 18:00, and suitably increases and decreases according to weather, water quality and situation of ingesting; Control water temperature 28 ~ 31 DEG C, salinity 26 ~ 31, pH value 8.2 ~ 8.5, DO value 5.0 ~ 7.0mg/L, day quantity of exchanged water 100% ~ 200%, the low light level, inflation.
Two, result: this cultivates Duo Lin Xi parent population 767 tail, survival rate 90.39%.
Embodiment 3
One, method
1, cultivate facility to select: the outdoor prawn culturing cement pit 3 mouthfuls choosing marine organisms study base, Guangdong Ocean University East Sea Island, area 0.13 hm
2, and being equipped with drainage and aeration system, aeration system is turbine type aerator; 50m
32, outdoor breeding wastewater degradation pond; Indoor controllable light parent fish rearing workshop.
2, prawn culturing:
(1) after the water of outdoor prawn culturing cement pit drains, per hectare 1200kg quicklime carries out disinfection, and after 4 days, after toxicity, the seawater of decimated filtration is included in pond, makes water level reach 1.5m; Execute urea 120kg/ hm
2, superphosphate 12kg/ hm
2;
(4) in water body during foundation bait raised growth, Chi Shui is yellow green, water quality transparency 25 ~ 35cm, adjust ph 7.5, throws in 0.8 ~ 1.0cm prawn larvae 200,000 tail, carries out prawn culturing; Cultivation should take interval to drive aerator depending on water quality condition early stage, extends the available machine time gradually subsequently, to ensure that the content of pond water dissolved oxygen is at more than 5mg/L;
(5) to throw something and feed corresponding artificial diet according to prawn kind, specification, daily ration, feeding quantity also should be determined according to factors such as the size of shrimp, survival rate, water quality, weather, feeding qualities, cultivation early stage (the long 1 ~ 3cm of prawn body) daily ration of feeding is 10% of shrimp body weight, mid-term (3 ~ 10cm) 7%, later stage daily ration of feeding is 4% of shrimp body weight, every day repeatedly throws something and feeds, and night, feeding volume accounted for 60%.
3, prawn culturing wastewater degradation: prawn culturing middle and later periods, breeding water body eutrophication, micro-algae and zooplankton amount reproduction, the zooplankton and the prawn of middle and later periods cannot ingest, now, is extracted into 50m by the eutrophic water in prawn culturing pond
3outdoor breeding pond, carries out aeration, is exposed to the sun 5 days, make the phytoplankton in water body make full use of the nutrient of water body, grow fast, and then promotes the growth of zooplankton; Obtain macrozooplankton, as cladocera, copepoda, small-sized shell-fish etc.
4, parent fish rearing: the Duo Lin Xi of screening more than 60g, is put into the 30m in indoor controllable light parent fish rearing workshop
3cultivate in cement pit, breeding density is 15 tails/m
2; Throw something and feed every day special Duo Lin Xi manufactured feed, throwing something and feeding the medium-and-large-sized zooplankton in prawn culturing wastewater degradation pond in interval for one day, with the nutrition lacked in supplementary manufactured feed, impels female, male parent population ripe further; Daily ration of feeding is 8% of fish body weight, and the bait throwing in time at the morning 8: 30 and afternoon 17:30, and suitably increases and decreases according to weather, water quality and situation of ingesting; Control water temperature 28 ~ 31 DEG C, salinity 26 ~ 31, pH value 8.2 ~ 8.5, DO value 5.0 ~ 7.0mg/L, day quantity of exchanged water 100% ~ 200%, the low light level, inflation.
Two, result: this cultivates Duo Lin Xi parent population 1039 tail, survival rate 88.98%.
Claims (4)
1. utilize prawn culturing waste water indoor scale to cultivate a method for many squamas Xi parent population, it is characterized in that: adopt following steps:
(1) cultivate facility to build: select area 0.07 ~ 0.2 hm
22 ~ 3 mouthfuls, prawn culturing pond, 50m
32 ~ 3 mouthfuls, outdoor breeding wastewater degradation pond, the parent population aquaculture water mud sump being positioned at indoor controllable light parent fish rearing workshop and pumping system; Described prawn culturing pond is cement pit, is equipped with drainage and aeration system; Described controllable light parent fish rearing workshop refers to the Duo Lin Xi parent fish rearing workshop being equipped with control light, temperature control, water supply, dirt eliminating function; Described pumping system refers to water pump and the pipeline resting from prawn culturing pond and grow waste water and be evacuated to outdoor wastewater degradation pond and be evacuated to indoor parent fish rearing pond from degraded pond;
(2) prawn culturing: by prawn culturing technical specification carry out disinfection pond, apply fertilizer, put seedling and pipe support, the cultivation of prawn is carried out in prawn culturing pond, when prawn grows to long more than the 6cm of body, pond water eutrophication is yellow green or dark brown, transparency 25 ~ 40cm, when pH value 7.5 ~ 9.0, stand-by;
(3) prawn culturing wastewater degradation: when reaching the pond water condition of step (2), Chi Shui in prawn culturing pond is extracted into outdoor breeding wastewater degradation pond by pumping system, natural lighting, through aeration system inflation cultivation 2 ~ 3 days, obtain the prawn culturing waste water after degraded, stand-by;
(4) parent fish rearing: step (3) the prawn culturing waste water obtained after degraded is evacuated to the parent population aquaculture water mud sump in controllable light parent fish rearing workshop by pumping system, luminosity is adjusted to 1500 lx ~ 2500lx, the Duo Lin Xi of screening more than 40g, as parent population, is 10 ~ 15 tails/m according to breeding density
2carry out parent fish rearing; Throw something and feed special Duo Lin Xi manufactured feed, throw something and feed the medium-and-large-sized zooplankton in prawn culturing wastewater degradation pond in interval for one day, daily ration of feeding is 5 ~ 8% of fish body weight, throws something and feeds every day 2 times; Cultivate water temperature 28 ~ 31 DEG C, salinity 26 ~ 31, pH value 8.2 ~ 8.5, DO value 5.0 ~ 7.0mg/L, every day changes the prawn culturing waste water after degraded, day quantity of exchanged water 100% ~ 200%, inflation cultivation.
2. method according to claim 1, is characterized in that: during described step (3) prawn culturing, and at prawn culturing in earlier stage, the content of pond water dissolved oxygen is not less than 5mg/L.
3. method according to claim 1, is characterized in that: during described step (4) parent fish rearing, luminosity 2000 lx, breeding density 12 tails/m
2.
4. method according to claim 1, is characterized in that: during described step (4) parent fish rearing, cultivates water temperature 30 ± 0.5 DEG C, salinity 26 ~ 31, pH value 8.2 ~ 8.5, DO value 6.0 ± 0.5mg/L, day quantity of exchanged water 150%.
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