CN104839069A - Method for acquiring batched Sillago sihama parent fishes - Google Patents
Method for acquiring batched Sillago sihama parent fishes Download PDFInfo
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- 241000251468 Actinopterygii Species 0.000 title claims abstract description 102
- 238000000034 method Methods 0.000 title claims abstract description 28
- 241000073173 Sillago sihama Species 0.000 title abstract description 9
- 238000012549 training Methods 0.000 claims abstract description 29
- 238000009395 breeding Methods 0.000 claims abstract description 16
- 230000001488 breeding effect Effects 0.000 claims abstract description 15
- 238000005286 illumination Methods 0.000 claims abstract description 11
- 230000008569 process Effects 0.000 claims abstract description 10
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 65
- 230000037396 body weight Effects 0.000 claims description 26
- 238000003306 harvesting Methods 0.000 claims description 22
- 150000001875 compounds Chemical class 0.000 claims description 17
- 230000003203 everyday effect Effects 0.000 claims description 15
- 235000013601 eggs Nutrition 0.000 claims description 14
- 238000009360 aquaculture Methods 0.000 claims description 13
- 244000144974 aquaculture Species 0.000 claims description 13
- 239000004568 cement Substances 0.000 claims description 13
- 238000012258 culturing Methods 0.000 claims description 13
- 235000013372 meat Nutrition 0.000 claims description 12
- 230000000384 rearing effect Effects 0.000 claims description 10
- 241000238366 Cephalopoda Species 0.000 claims description 8
- 241000237502 Ostreidae Species 0.000 claims description 8
- 235000020636 oyster Nutrition 0.000 claims description 8
- 201000010099 disease Diseases 0.000 claims description 7
- 208000037265 diseases, disorders, signs and symptoms Diseases 0.000 claims description 7
- 230000002354 daily effect Effects 0.000 claims description 6
- 230000007423 decrease Effects 0.000 claims description 6
- 230000000694 effects Effects 0.000 claims description 6
- 239000002932 luster Substances 0.000 claims description 6
- 244000045947 parasite Species 0.000 claims description 6
- 230000001902 propagating effect Effects 0.000 claims description 6
- 238000012216 screening Methods 0.000 claims description 6
- 241000238557 Decapoda Species 0.000 claims description 5
- 238000009343 monoculture Methods 0.000 claims description 3
- 230000004083 survival effect Effects 0.000 abstract description 8
- 238000011031 large-scale manufacturing process Methods 0.000 abstract 1
- 230000003938 response to stress Effects 0.000 abstract 1
- 239000004677 Nylon Substances 0.000 description 9
- 229920001778 nylon Polymers 0.000 description 9
- 230000017448 oviposition Effects 0.000 description 8
- 238000011534 incubation Methods 0.000 description 4
- 238000006243 chemical reaction Methods 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 238000006213 oxygenation reaction Methods 0.000 description 3
- 230000001105 regulatory effect Effects 0.000 description 3
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 2
- 238000009826 distribution Methods 0.000 description 2
- 229910052760 oxygen Inorganic materials 0.000 description 2
- 239000001301 oxygen Substances 0.000 description 2
- 230000001954 sterilising effect Effects 0.000 description 2
- 238000004659 sterilization and disinfection Methods 0.000 description 2
- 241000489963 Anabantoidei Species 0.000 description 1
- 208000034656 Contusions Diseases 0.000 description 1
- PEDCQBHIVMGVHV-UHFFFAOYSA-N Glycerine Chemical compound OCC(O)CO PEDCQBHIVMGVHV-UHFFFAOYSA-N 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
- 238000010009 beating Methods 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 208000034526 bruise Diseases 0.000 description 1
- 238000005266 casting Methods 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 239000003653 coastal water Substances 0.000 description 1
- 230000003750 conditioning effect Effects 0.000 description 1
- 230000001276 controlling effect Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 235000013305 food Nutrition 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000002362 mulch Substances 0.000 description 1
- 235000016709 nutrition Nutrition 0.000 description 1
- 230000035764 nutrition Effects 0.000 description 1
- 238000009344 polyculture Methods 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
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- 239000004576 sand Substances 0.000 description 1
- 238000003756 stirring 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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- Marine Sciences & Fisheries (AREA)
- Zoology (AREA)
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- Farming Of Fish And Shellfish (AREA)
- Fodder In General (AREA)
- Feed For Specific Animals (AREA)
Abstract
The invention relates to a method for acquiring batched Sillago sihama parent fishes, and belongs to the technical field of artificial breeding of fishes. In the prior art, the survival rate of captured wild Sillago sihama adult fishes cannot reach 0.1%, batched parent fishes cannot be acquired, and large-scale production of Sillago sihama artificial seedlings is restricted. Through feeding of the Sillago sihama artificial seedlings and artificial regulation for a series of measures such as the cultivation environment, feeding, the illumination intensity, sounds, capturing, pond moving in the process of cultivating the artificial seedlings into adult fishes, training of the Sillago sihama artificial seedlings to the cultivation environment and the cultivating operation adaptability is enhanced, stress responses are reduced, adult fishes in a cultured population are selected to domesticate into parent fishes, and the domestication survival rate reaches above 80%. The method provided by the invention can solve a problem of batched parent fishes required by Sillago sihama large-scale artificial breeding, thereby laying a foundation for large-scale seedling cultivation of Sillago sihama.
Description
Technical field
The present invention relates to a kind of method that batch obtains Duo Lin Xi parent population, belong to the artificial breeding technology field of fish.
Background technology
Duo Lin Xi Sillago sihama Forsk á l is under the jurisdiction of Perciformes Perciformes, Anabantoidei Percoidei, perch Superfamily Percoidea, Xi section Sillaginidae, Xi belong to Sillago.Have distribution in Australia, India, Indonesia, Philippine and Japan, also there is distribution in the coastal waters at China's Bohai and Yellow Seas, the East Sea and the South Sea, and body length can reach 300mm.Duo Lin Xi is commonly called as sand borer, ship fourth fish, the wheat head, the fishing season of fishing for spring, season in summer two for best fishing period, it is the important economic fish of China coast, once in China coastal seas fishing operation, considerable position was occupied, 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 cultivation survival rate is high and breeding way is various, and better economic benefit, has very wide industrialization breeding prospect.Realize Duo Lin Xi industrialization cultivation, scale seeling industry is prerequisite.But Duo Lin Xi belongs to small fishes, build belongs to spindle, frightened reaction is fierce and very easily injured, bruise resistance extreme difference, adopt the wild Duo Lin Xi adult fish caught and raise and train 3 days survival rates lower than 40%, raise and train 7 days survival rates lower than 1%, raise and train 11 days survival rates lower than 0.1%, so the dead fish based on chilled fish or death toll hour on market is sold, cannot sell in fresh aquatic food mode.Wild Duo Lin Xi raises and train that survival rate is low annoyings fish reproduction expert always, how to obtain batch live fish, and then raises and train as parent population becomes the bottleneck of Duo Lin Xi artificial breeding.Patent CN102919186B discloses the artificial breeding method of a kind of Duo Lin Xi, the method selects the wild Duo Lin Xi adult fish of more than 100g through domestication as parent population, and prenatal nutrition strengthening and parent population environment conditioning are carried out to it, impel its natural spawning, obtain fertilized egg.This patent mainly discloses the reinforced cultivating technology of wild Duo Lin Xi parent population, but the method cannot obtain batch parent population.Up to now, about the research obtaining Duo Lin Xi parent population in batches, there is not been reported.
Summary of the invention
A kind of batch is the object of the present invention is to provide to obtain the method for Duo Lin Xi parent population, specifically raise and train in process at Duo Lin Xi culture with artificial seedlings and adult fish and pass through bait throwing in, intensity of illumination, sound, catch, the artificial regulatory of pond (pool) series of measures, strengthen it to breeding environment and the training cultivating operational suitability, reduce its stress reaction, and selected adult fish is raised and train as parent population in cultured population, raise and train survival rate more than 80%, the method can solve the batch parent population problem needed for the full artificial breeding of many squamas Xi scale, for the extensive seedling fostering of Duo Lin Xi lays the foundation.
In order to solve the problem, the technical solution used in the present invention is as follows: a kind of batch obtains the method for Duo Lin Xi parent population, adopts following concrete steps:
(1) Duo Lin Xi propagates artificially: select the Duo Lin Xi seedling of total length 2 ~ 3cm to throw in and cultivate to culturing pool;
(2) feeding and management: adopt the right place mode of throwing something and feeding of throwing something and feeding to throw something and feed Duo Lin Xi special compound feed, feed day feeding volume be 5 ~ 8% of Duo Lin Xi body weight, every day throws something and feeds at twice, and suitably increases and decreases according to weather, water quality and situation of ingesting; Blowdown every day 1 ~ 4 time, and increase new water, high temperature or low temperature season suitably increase water filling number of times, keep culturing pool water level 1.5 ~ 1.8m; During raising, carry out bait throwing in acclimatization training, sound acclimatization training, intensity of illumination acclimatization training and catch acclimatization training;
(3) harvesting: harvesting after the cultivation of more than 10 months;
(4) raise and train: the many squamas Xi after harvesting, the individuality selecting more than 40g puts into culturing pool, carries out intensively entirely propagating artificially, many squamas Xi special compound feed of throwing something and feeding; Adopt the right place mode of throwing something and feeding, feed day feeding volume be 5% ~ 8% of Duo Lin Xi body weight, every day throws something and feeds at twice; When raising and train, carry out bait throwing in acclimatization training, sound acclimatization training, intensity of illumination acclimatization training and catch acclimatization training; Raise and train in process, every 10 days, fall pond once, draining was to depth of water 20-30cm, and operating personnel enter in pond and walk about;
(5) parent population screening: through cultivation in more than 10 months, batch obtains Duo Lin Xi adult fish, now, select build regular, not injured, without deformity, physique is strong, color and luster is normal, activity is sensitive, it is normal, disease-free to ingest, without many squamas Xi adult fish of parasite, more than body weight 40g as parent population, proceed to parent fish pond cultivation; In described parent population, adult fish the ratio more than adult fish of 40g ~ 60g/ tail and 60g/ tail is 1:1, and the female-male proportion in parent population is 1:1;
(6) parent fish rearing: Duo Lin Xi special compound feed of throwing something and feeding, biological feed of throwing something and feeding the last week of laying eggs, daily ration of feeding is 5% ~ 8% of fish body weight, and the bait throwing in time is at the morning 8: 00 and afternoon 17:00; 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;
Wherein, described right place is thrown something and fed and is referred to: when culturing pool is pond, is fixed on bait table and throws something and feeds, and culturing pool is that cement pit is is then thrown something and fed at fixing bait throwing in point; Feeding time is arranged on set time every day section; Before described sound acclimatization training refers to and throws something and feeds, knock cement pool wall or bait table is thrown something and fed again at bait throwing in point; Described intensity of illumination acclimatization training refers to that night turns on light or direct irradiation water surface for aquaculture near pond or cement pit; When described seizure acclimatization training refers to and throws something and feeds, stretch out one's hand maybe will adopt and catch net and drag for reach and ingest in the shoal of fish.
Described biological feed refers to chilled squid, oyster, clam worm; Biological feed started to throw something and feed in the last week of laying eggs, and adopted chilled squid meat, oyster meat, mode that clam worm is is alternately thrown something and fed, biological feed day feeding volume be 5% ~ 8% of fish body weight.
The present invention culturing pool can be pond or outdoor tank-culture or indoor water mud sump; Described pond can be feed coefficient or Tu Tang or the mulch film pool; Pond arranges bait table, and cement pit arranges fixing bait throwing in point.The aquaculture model that method of the present invention goes for monoculture or raises together with.Require in pond during adult fish culture, outdoor tank-culture or indoor water mud sump complete, to train the breeding environment adaptability of adult fish.Through practice, the effective order of adaptability is indoor cement, outdoor tank-culture, pond; And monoculture ratio is raised together with effective; High cultivation density is more effective than low-density.
Carry out adopting catch time, adopt instrument of catching and adopt nylon trawlnet or nylon wire drags for or bucket; Adopting method for catching is: water is drained into depth of water 20-30cm, keep oxygenation, guarantee that water dissolved oxygen is at more than 5mg/L, when in culturing pool, the density of fish is large, adopt nylon wire to drag for seizure, often net drags for each seizure and does not surpass 5 tails, avoids spring extruding to cause mechanical damage, and to move in time in bucket and to keep oxygenation, then move to running water transport vehicle (ship); Density hour, adopts nylon trawlnet fish to be concentrated on a zonule, then adopts as stated above and catch.
When carrying out the cultivation of parent population, conventional change water, diseases prevention and regulating and controlling water quality mode need be adopted to carry out intensive culture.The outdoor bar shaped cement track pond that culturing pool also can select 30.7m × 8m × 1.5m, its broadside is semicircle (￠ 8m).
Adult fish of the present invention or parent population are as needed transport, and means of transportation is: in the running water storehouse of running water transport vehicle (ship), hang one deck nylon wire during transport, fish is in net; Keep oxygenation in transportation, dissolved oxygen at more than 5mg/L, the not super 40kg/m of traffic density
3.
When bait throwing in of the present invention training is to throw something and feed many squamas Xi at bait throwing in point cluster for achieving the goal.When voice training is to knock Duo Lin Xi near beating point cluster for achieving the goal; The not bait casting time, often nearby speak aloud, manufacture loud noise, train it to the adaptability of loud noise and speech, not frightened and jump as achieving the goal with Duo Lin Xi when loud noise or speech.Intensity of illumination is trained not frightened with Duo Lin Xi during strong illumination water surface for aquaculture and jumps as achieving the goal.Catch training to stir the shoal of fish in water do not become separated in flight as achieving the goal to stretch out one's hand.The training of falling pond is with draining to depth of water 20-30cm, and it is frightened and jump as achieving the goal that operating personnel do not enter Duo Lin Xi when walking about in pond.
The present invention adopts suitable breeding facility in Duo Lin Xi adult fish culture process, pass through aquaculture model, throw something and feed, intensity of illumination, sound, catch, the artificial regulatory of pond (pool) series of measures, strengthen it to breeding environment and the training cultivating operational suitability, reduce its stress reaction, and in cultured population, screen adult fish raise and train, batch parent population is obtained by taming and screen, solve Duo Lin Xi large-scale artificial and breed required parent population problem, for the extensive seedling fostering of Duo Lin Xi, propagate artificially and lay a good foundation, the industrialized development that Duo Lin Xi cultivates can be promoted.
Embodiment
Be described in further details the present invention below by example, these examples are only used for the present invention is described, do not limit the scope of the invention.
Embodiment 1: Duo Lin Xi F
1batch parent population is obtained for pond culture colony.
One, method
1, Duo Lin Xi propagates artificially: adopt and cultivate as parent population through the wild Duo Lin Xi of domestication, obtains fertilized egg, and cultivates the artificial seedling of batch Duo Lin Xi; The area choosing marine organisms study base, Guangdong Ocean University East Sea Island is 0.09 hm
2feed coefficient, through sterilization, water filling, Fei Tang, in water body during foundation bait raised growth, select many squamas Xi seedling of height 2 ~ 3cm in above-mentioned seedling according to density 300,000 tails/hm
2throw in in feed coefficient.
2, feeding and management: Duo Lin Xi special compound feed of throwing something and feeding, day feeding volume be Duo Lin Xi body weight 8% calculate, every day throws something and feeds at twice, and suitably increases and decreases according to weather, water quality and situation of ingesting.Right place is thrown something and fed, and before throwing something and feeding, knocks pool wall at bait throwing in point, treats that most fish is gathered near bait throwing in point and throws something and feeds; When throwing something and feeding, often will adopt and catch net and drag for reach and ingest in the shoal of fish.Night, often with the flashlight direct irradiation water surface for aquaculture that light is stronger, observes the active situation of fish; Blowdown every day 4 times, and increase new water, high temperature or low temperature season suitably increase water filling number of times, and flood to 1.6m.
3, harvesting: harvesting after cultivation in 10 months, nylon wire during harvesting, avoids fish body injured.
4, raise and train: the Duo Lin Xi after harvesting, the individuality selecting more than 40g puts into 50m
3rectangle cement pit in, carry out intensively entirely propagating artificially, many squamas Xi special compound feed of throwing something and feeding; Right place is thrown something and fed, and before throwing something and feeding, knocks pool wall at bait throwing in point, treats that most fish is gathered near bait throwing in point and throws something and feeds; When throwing something and feeding, often will adopt and catch net and drag for reach and ingest in the shoal of fish.Night, often with the flashlight direct irradiation water surface for aquaculture that light is stronger, observes the active situation of fish.Raise and train in process, every 10 days, fall pond once, train it to adopting the adaptability of catching, with draining to depth of water 20-30cm, operating personnel entered in pond and walk about.
5, parent population screening: select build regular, not injured, without lopsided, physique is strong, color and luster is normal, activity is sensitive, it is normal, disease-free to ingest, carry out parent fish rearing without many squamas Xi adult fish of parasite, more than 40g as parent population, in parent population, adult fish the ratio more than adult fish of body weight 40g ~ 60g/ tail and body weight 60g/ tail is 1:1, and the female-male proportion of adult fish is 1:1.
6, parent fish rearing: Duo Lin Xi special compound feed of throwing something and feeding, alternately throw something and feed the last week of laying eggs chilled squid meat, oyster meat, clam worm, impel female, male parent population ripe further, daily ration of feeding is 8% of fish body weight, and the bait throwing in time is at the morning 8: 00 and afternoon 17:00; 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 many squamas Xi parent population 4873 tail, cultivates through 3 first quarter moons, reaches the egg-laying period first, the highest day egg laying amount reach 3.2kg, add up to more than 1,000 ten thousand, incubation rate more than 86%, obtains many squamas Xi F
1for parent population.
Embodiment 2: Duo Lin Xi F
2batch parent population is obtained for pond polyculture colony.
One, method
1, Duo Lin Xi propagates artificially: at the F of embodiment 1
1selected parent population for subsequent use in cultured population, cultivates through accelerating, obtains batch fertilized egg, goes out the artificial seedling of batch (the long 2 ~ 3cm of body) through artificial culture; Leizhou City Hui great aquaculture Co., Ltd East Sea Island area of base is selected to be 0.18 hm
2feed coefficient 3 mouthfuls carry out Fish-shrimp mix-culture, cultivation density is prawn 4,500,000 tails/hm
2, Duo Lin Xi density is respectively 3.0 ten thousand tails/hm
2, 6.0 ten thousand tails/hm
2with 9.0 ten thousand tails/hm
2.
2, feeding and management: prawn manufactured feed of mainly throwing something and feeding, day feeding volume calculates by 8% of prawn body weight, every bu is thrown something and fed for four times, and suitably increase and decrease according to weather, water quality and situation of ingesting, the breeding process Duo Lin Xi specialty feed Duo Lin Xi that do not throw something and feed mainly ingests zooplankton in breeding water body, when biological feed is not enough, and prawn feed of ingesting; Blowdown every day 2 times, and increase new water, high temperature or low temperature season suitably increase water filling number of times, and flood to 1.8m.
3, harvesting: harvesting after 10 first quarter moon cultivation, nylon wire during harvesting, avoids fish body injured.
4, raise and train: the Duo Lin Xi after harvesting, it is 30.7m × 8m × 1.5m that the individuality selecting more than 50g puts into marine organisms study base, Guangdong Ocean University East Sea Island specification, its broadside is in the outdoor bar shaped raceway pond of semicircle (￠ 8m), carry out intensively entirely propagating artificially, many squamas Xi special compound feed of throwing something and feeding; The mode that feedstuff feeding adopts right place to throw something and feed, before throwing something and feeding, knocks pool wall at bait throwing in point, treats that most fish is gathered near bait throwing in point and throw something and feed; When throwing something and feeding, often will adopt and catch net and drag for reach and ingest in the shoal of fish.Night, often with the flashlight direct irradiation water surface for aquaculture that light is stronger, observes the active situation of fish; Raise and train in process, every 10 days, fall pond once, train it to adopting the adaptability of catching, with draining to depth of water 20-30cm, operating personnel entered in pond and walk about.
5, parent population screening: select build regular, not injured, without lopsided, physique is strong, color and luster is normal, activity is sensitive, it is normal, disease-free to ingest, carry out parent fish rearing without many squamas Xi adult fish of parasite, more than 40g as parent population, in parent population, adult fish the ratio more than adult fish of body weight 40g ~ 60g/ tail and body weight 60g/ tail is 1:1, and the female-male proportion of adult fish is 1:1.
6, parent fish rearing: based on Duo Lin Xi special compound feed of throwing something and feeding, lay eggs chilled squid meat, oyster meat, the clam worm of alternately throwing something and feeding the last week, impel female, male parent population ripe further, daily ration of feeding is 5% ~ 8% of fish body weight, and the bait throwing in time is at the morning 8: 00 and afternoon 17:00; 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 13265 tail.Cultivated through 4 months, reach the egg-laying period first, the highest day egg laying amount reach 6.5kg, add up to more than 2,100 ten thousand, incubation rate more than 83%, obtains many squamas Xi F first
2for the success of raising together with the full artificial culture of cultured population parent population.
Embodiment 3: Duo Lin Xi F
2cement pit cultured population obtains batch parent population.
One, method
1, Duo Lin Xi propagates artificially: at the F of embodiment 1
1selected parent population for subsequent use in cultured population, cultivates through accelerating and obtains batch fertilized egg, through the artificial seedling of the granted amount of artificial breeding; The area selecting marine organisms study base, Guangdong Ocean University East Sea Island is 50m
3outdoor tank interior 3 mouthfuls, carry out the outdoor tank interior cultivation of artificial seedling, cultivation density is 40 tails/m
2.
2, feeding and management: Duo Lin Xi special compound feed of throwing something and feeding, day feeding volume press Duo Lin Xi body weight 6% calculate, every day throws something and feeds at twice, and suitably increases and decreases according to weather, water quality and situation of ingesting; Right place is thrown something and fed, and before throwing something and feeding, knocks pool wall at bait throwing in point, treats that most fish is gathered near bait throwing in point and throws something and feeds; When throwing something and feeding, often will adopt and catch net and drag for reach and ingest in the shoal of fish.Night, often with the flashlight direct irradiation water surface for aquaculture that light is stronger, observes the active situation of fish; Blowdown every day 4 times, and increase new water, high temperature or low temperature season suitably increase water filling number of times.
3, harvesting: harvesting after cultivation in 11 months, nylon wire during harvesting, avoids fish body injured.
4, raise and train: the Duo Lin Xi after harvesting, the individuality selecting more than 50g puts into Guangdong Ocean University East Sea Island marine organisms study base 50m
3rectangle cement pit in, carry out intensively entirely propagating artificially, many squamas Xi special compound feed of throwing something and feeding; The mode that feedstuff feeding adopts right place to throw something and feed, before throwing something and feeding, knocks pool wall at bait throwing in point, treats that most fish is gathered near bait throwing in point and throw something and feed; When throwing something and feeding, often will adopt and catch net and drag for reach and ingest in the shoal of fish; Night, often with the flashlight direct irradiation water surface for aquaculture that light is stronger, observes the active situation of fish; Raise and train in process, every 10 days, fall pond once, train it to adopting the adaptability of catching, with draining to depth of water 20-30cm, operating personnel entered in pond and walk about.
5, parent population screening: select build regular, not injured, without lopsided, physique is strong, color and luster is normal, activity is sensitive, it is normal, disease-free to ingest, carry out parent fish rearing without many squamas Xi adult fish of parasite, more than 40g as parent population, in parent population, adult fish the ratio more than adult fish of body weight 40g ~ 60g/ tail and body weight 60g/ tail is 1:1, and the female-male proportion of adult fish is 1:1.
6, parent fish rearing: based on Duo Lin Xi special compound feed of throwing something and feeding, lay eggs chilled squid meat, oyster meat, the clam worm of alternately throwing something and feeding the last week, impel female, male parent population ripe further, daily ration of feeding is 5% ~ 8% of fish body weight, and the bait throwing in time is at the morning 8: 00 and afternoon 17:00; 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 obtains Duo Lin Xi parent population 3160 tail.Cultivated through 3 months, reach the egg-laying period first, the highest day egg laying amount reach 2.2kg, add up to more than 600 ten thousand, incubation rate more than 89%, obtains many squamas Xi F
2for the success of the full artificial culture of cement pit cultured population parent population.
Embodiment 4: Duo Lin Xi F
3batch parent population is obtained for pond culture colony.
One, method
1, Duo Lin Xi propagates artificially: at the F of embodiment 2 and embodiment 3
2selected parent population for subsequent use in cultured population, through accelerating cultivate, obtain batch fertilized egg, fertilized egg through artificial culture, the artificial seedling of granted amount; Marine organisms study base, Guangdong Ocean University East Sea Island area is selected to be 0.09 hm
2feed coefficient, through sterilization, water filling, Fei Tang, in water body during foundation bait raised growth, by density 200,000 tails/hm
2throw in the Duo Lin Xi seedling of total length 2 ~ 3cm.
2, feeding and management: Duo Lin Xi special compound feed of throwing something and feeding, day feeding volume press Duo Lin Xi body weight 7% calculate, every day throws something and feeds at twice, and suitably increases and decreases according to weather, water quality and situation of ingesting.Right place is thrown something and fed, and before throwing something and feeding, knocks pool wall at bait throwing in point, treats that most fish is gathered near bait throwing in point and throws something and feeds; When throwing something and feeding, often will adopt and catch net and drag for reach and ingest in the shoal of fish.Night, often with the flashlight direct irradiation water surface for aquaculture that light is stronger, observes the active situation of fish.Blowdown every day 4 times, and increase new water, high temperature or low temperature season suitably increase water filling number of times, and flood to 1.6m.
3, harvesting: harvesting after cultivation in 10 months, nylon wire during harvesting, avoids fish body injured.
4, raise and train: the many squamas Xi after harvesting, the individuality selecting more than 40g puts into the outdoor bar shaped raceway pond that specification is 30.7m × 8m × 1.5m, its broadside is semicircle (￠ 8m), carries out intensively entirely propagating artificially, many squamas Xi special compound feed of throwing something and feeding; The mode that feedstuff feeding adopts right place to throw something and feed, before throwing something and feeding, knocks pool wall at bait throwing in point, treats that most fish is gathered near bait throwing in point and throw something and feed; When throwing something and feeding, often will adopt and catch net and drag for reach and ingest in the shoal of fish; Night, often with the flashlight direct irradiation water surface for aquaculture that light is stronger, observes the active situation of fish; Raise and train in process, every 10 days, fall pond once, train it to adopting the adaptability of catching, with draining to depth of water 20-30cm, operating personnel entered in pond and walk about.
5, parent population screening: select build regular, not injured, without lopsided, physique is strong, color and luster is normal, activity is sensitive, it is normal, disease-free to ingest, carry out parent fish rearing without many squamas Xi adult fish of parasite, more than 40g as parent population, in parent population, adult fish the ratio more than adult fish of body weight 40g ~ 60g/ tail and body weight 60g/ tail is 1:1, and the female-male proportion of adult fish is 1:1.
6, parent fish rearing: based on Duo Lin Xi special compound feed of throwing something and feeding, lay eggs chilled squid meat, oyster meat, the clam worm of alternately throwing something and feeding the last week, impel female, male parent population ripe further, daily ration of feeding is 5% ~ 8% of fish body weight, and the bait throwing in time is at the morning 8: 00 and afternoon 17:00; 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 many squamas Xi parent population 5860 tail, cultivated through 4 months, reaches the egg-laying period first, the highest day egg laying amount reach 11.3kg, add up to more than 2,200 ten thousand, incubation rate more than 89.2%, obtains many squamas Xi F
3for the success of the full artificial culture of parent population.
Claims (2)
1. batch obtains a method for many squamas Xi parent population, it is characterized in that: be following steps:
(1) Duo Lin Xi propagates artificially: select Duo Lin Xi seedling to throw in and cultivate to culturing pool; Breeding way is monoculture or raises together with prawn;
(2) feeding and management: adopt the right place mode of throwing something and feeding of throwing something and feeding to throw something and feed Duo Lin Xi special compound feed, feed day feeding volume be 5 ~ 8% of Duo Lin Xi body weight, every day throws something and feeds at twice, and suitably increases and decreases according to weather, water quality and situation of ingesting; Blowdown every day 1 ~ 4 time, and increase new water, high temperature or low temperature season suitably increase water filling number of times, keep culturing pool water level 1.5 ~ 1.8m; During raising, carry out bait throwing in acclimatization training, sound acclimatization training, intensity of illumination acclimatization training and catch acclimatization training;
(3) harvesting: harvesting after cultivation in 10 months;
(4) raise and train: the many squamas Xi after harvesting, the individuality selecting more than 40g puts into culturing pool, carries out intensively entirely propagating artificially, many squamas Xi special compound feed of throwing something and feeding; Adopt right place to throw something and feed mode, feed day feeding volume be 5% ~ 8% of Duo Lin Xi body weight, every day throws something and feeds at twice; When raising and train, carry out bait throwing in acclimatization training, sound acclimatization training, intensity of illumination acclimatization training and catch acclimatization training; Raise and train in process, every 10 days, fall pond once, draining was to depth of water 20-30cm, and operating personnel enter in pond and walk about;
(5) parent population screening: through cultivation in more than 10 months, batch obtains Duo Lin Xi adult fish, now, select build regular, not injured, without deformity, physique is strong, color and luster is normal, activity is sensitive, it is normal, disease-free to ingest, without many squamas Xi adult fish of parasite, more than body weight 40g as parent population, proceed to parent fish pond cultivation; In described parent population, adult fish the ratio more than adult fish of 40g ~ 60g/ tail and 60g/ tail is 1:1, and the female-male proportion in parent population is 1:1;
(6) parent fish rearing: Duo Lin Xi special compound feed of throwing something and feeding, biological feed of throwing something and feeding the last week of laying eggs, daily ration of feeding is 5% ~ 8% of fish body weight, and the bait throwing in time is at the morning 8: 00 and afternoon 17:00; 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;
Wherein, described right place is thrown something and fed and is referred to: when culturing pool is pond, is fixed on bait table and throws something and feeds, and culturing pool is that cement pit is is then thrown something and fed at fixing bait throwing in point; Feeding time is arranged on set time every day section; Before described sound acclimatization training refers to and throws something and feeds, knock cement pool wall or bait table is thrown something and fed again at bait throwing in point; Described intensity of illumination acclimatization training refers to that night turns on light or direct irradiation water surface for aquaculture near pond or cement pit; When described seizure acclimatization training refers to and throws something and feeds, stretch out one's hand maybe will adopt and catch net and drag for reach and ingest in the shoal of fish.
2. method according to claim 1, is characterized in that: described biological feed refers to chilled squid, oyster, clam worm; Biological feed started to throw something and feed in the last week of laying eggs, and adopted chilled squid meat, oyster meat, mode that clam worm is is alternately thrown something and fed, biological feed day feeding volume be 5% ~ 8% of fish body weight.
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