CN105494208A - Sebastes schlegeli artificial squeezing fry breeding method - Google Patents
Sebastes schlegeli artificial squeezing fry breeding method Download PDFInfo
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- CN105494208A CN105494208A CN201511026008.6A CN201511026008A CN105494208A CN 105494208 A CN105494208 A CN 105494208A CN 201511026008 A CN201511026008 A CN 201511026008A CN 105494208 A CN105494208 A CN 105494208A
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- prelarva
- fish
- squeezing
- water
- feeding
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- 238000009395 breeding Methods 0.000 title abstract description 9
- 241001582957 Sebastes schlegelii Species 0.000 title abstract description 3
- 241000251468 Actinopterygii Species 0.000 claims abstract description 46
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 31
- 210000001015 abdomen Anatomy 0.000 claims abstract description 9
- 238000004519 manufacturing process Methods 0.000 claims abstract description 8
- 239000013535 sea water Substances 0.000 claims abstract description 7
- 241001529596 Pontinus kuhlii Species 0.000 claims description 23
- 230000000366 juvenile effect Effects 0.000 claims description 13
- 150000001875 compounds Chemical class 0.000 claims description 11
- 241000700104 Brachionus plicatilis Species 0.000 claims description 10
- 230000013011 mating Effects 0.000 claims description 10
- 238000012258 culturing Methods 0.000 claims description 8
- 241000195649 Chlorella <Chlorellales> Species 0.000 claims description 7
- 230000003203 everyday effect Effects 0.000 claims description 7
- 229910052736 halogen Inorganic materials 0.000 claims description 7
- 150000002367 halogens Chemical class 0.000 claims description 7
- 230000000384 rearing effect Effects 0.000 claims description 7
- 241000700141 Rotifera Species 0.000 claims description 6
- 230000032696 parturition Effects 0.000 claims description 6
- 241001247197 Cephalocarida Species 0.000 claims description 5
- 241000143060 Americamysis bahia Species 0.000 claims description 4
- 241000133262 Nauplius Species 0.000 claims description 4
- 210000000481 breast Anatomy 0.000 claims description 4
- 239000004568 cement Substances 0.000 claims description 4
- 230000008014 freezing Effects 0.000 claims description 4
- 238000007710 freezing Methods 0.000 claims description 4
- 238000005286 illumination Methods 0.000 claims description 4
- 230000001568 sexual effect Effects 0.000 claims description 4
- 208000019790 abdominal distention Diseases 0.000 claims description 3
- 230000037396 body weight Effects 0.000 claims description 3
- 239000007788 liquid Substances 0.000 claims description 3
- 238000005728 strengthening Methods 0.000 claims description 3
- 230000009182 swimming Effects 0.000 claims description 3
- 238000000034 method Methods 0.000 abstract description 9
- 230000001488 breeding effect Effects 0.000 abstract description 7
- 206010000210 abortion Diseases 0.000 abstract 1
- 231100000176 abortion Toxicity 0.000 abstract 1
- 230000007423 decrease Effects 0.000 abstract 1
- 208000010515 dystocia Diseases 0.000 abstract 1
- 210000004392 genitalia Anatomy 0.000 abstract 1
- 239000011148 porous material Substances 0.000 abstract 1
- 230000001105 regulatory effect Effects 0.000 abstract 1
- 206010000234 Abortion spontaneous Diseases 0.000 description 2
- 208000015994 miscarriage Diseases 0.000 description 2
- 208000000995 spontaneous abortion Diseases 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000012141 concentrate Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 230000004720 fertilization Effects 0.000 description 1
- 210000002149 gonad Anatomy 0.000 description 1
- 230000012447 hatching Effects 0.000 description 1
- 238000001727 in vivo Methods 0.000 description 1
- 210000001161 mammalian embryo Anatomy 0.000 description 1
- 230000035800 maturation Effects 0.000 description 1
- 239000003643 water by type Substances 0.000 description 1
Classifications
-
- 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
-
- 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)
- Zoology (AREA)
- Animal Husbandry (AREA)
- Biodiversity & Conservation Biology (AREA)
- Farming Of Fish And Shellfish (AREA)
Abstract
The invention discloses a sebastes schlegeli artificial squeezing fry breeding method, and belongs to the technical field of fry breeding. The method comprises parent selection, indoor temporary breeding, artificial fish squeezing, fry resurgence and fry breeding; the artificial fish squeezing comprises the following steps: selecting parturient female fishes, wrapping fish bodies with cloth-like objects wetted by seawater, covering eyes of the female fishes, and slightly squeezing abdomens of the fishes towards genital pores in order that mature fries slowly flow into a prepared water container; slightly squeezing the abdomens of parent fishes, and stopping squeezing fries after the flow speed of the fries decreases, putting the parent fishes back into a pond, and squeezing the fries 2-4 hours later according to a production requirement. By adopting the method, the quantity of fries can be regulated and controlled according to production, and the problems of dystocia, abortion and the like of the parent fishes reproducing for the first time are solved. The method has important significance to the reduction of artificial operation inconvenience and control on the culture pond density.
Description
Technical field
The present invention relates to fish hatching technical field, particularly the flat rockfish of a kind of Xu Shi manually squeezes prelarva mating system.
Background technology
The black Jun of the flat Rockfish of Xu Shi (Sebastesschlegeli) original name, is under the jurisdiction of the flat Rockfish of Rockfish Xing Mu Rockfish section and belongs to, battalion's ovoviviparity breeding.Being distributed widely in temperate waters, the Northern Hemisphere, is the common economic fish in the yellow Bohai Sea of China.The flat rockfish of Xu Shi generally morning about 23:00 to 2:00 produce fish; In the process of artificial breeding, parent population is subject to extraneous interference when producing fish can cause miscarriage, affects the quality of prelarva; The maturation of raun is asynchronous and produce fish in batches; The prelarva of firm output is tender and lovely, pastes the problems such as the easy injured death of network capacity.Therefore, be difficult to the number density controlling prelarva in fishpond, and bring a lot of trouble to manual operation.
Summary of the invention
The technical problem to be solved in the present invention is to provide the flat rockfish of a kind of Xu Shi manually to squeeze prelarva mating system, the present invention can regulate and control prelarva quantity according to production, and avoid the problem such as parent population difficult labour, miscarriage of first breeding, significant with control culturing pool density to the manually-operated inconvenience of minimizing.
The present invention is achieved by the following technical solution:
The flat rockfish of a kind of Xu Shi manually squeezes prelarva mating system, comprises Juvenile stage, indoor and supports temporarily, manually squeezes fish, prelarva resurrection and seed rearing;
Describedly artificial squeeze fish: selecting namely will raun just before giving birth, and encase fish body with cloth-like thing wet from sea water and cover raun eyes, the belly to gonopore direction extruding fish gently, fully-developed prelarva can slowly flow in preprepared band water receptacle; Gently the rate of outflow of extruding parent population belly prelarva will stop crowded prelarva after slowing down afterwards, is put back to by parent population in pond, according to need of production, carries out crowded prelarva again after 2-4 hour.
Described prelarva is brought back to life: the prelarva of extruding is put into fast the Plastic Drum filling fresh seawater, leaves standstill, the prelarva rotary top layer swimming over to water successively of bottom of the barrel, starts to bring back to life successively; Statistics brings back to life the quantity of prelarva, according to 0.15 ~ 0.25 ten thousand/m
3throw in culturing pool.
Further, described Juvenile stage: parent population is fished for or deep water mesh cage from wild, cultivates through more than 3 years, reached the raun of sexual maturity bosom prelarva, the specification of parent population is: 3 ~ 5 ages, total length 400 ~ 500mm/ tail, body weight 1.5 ~ 2.5kg; Fish body is active, abdominal distention is full, the red swollen evagination of gonopore.
Further, described indoor are supported temporarily: adopt the indoor cement pit flowing water culture having veil, every day changes water, keep water quality pure and fresh, small fish, small shrimps and artifical compound feed that parent population of throwing something and feeding is fresh or freezing; Cultivate density 5 ~ 10kg/m
3, continuous charge, illumination 200Lux, water temperature remains on 19.0 DEG C.
Further, described seed rearing: the juvenile fish of just having extruded, throw something and feed through the brachionus plicatilis of chlorella strengthening after 5h, after 7 ~ 8 days, bait is based on the nauplius of halogen worm, to throw something and feed on a small quantity brachionus plicatilis, reduce brachionus plicatilis feeding volume gradually, all stop throwing something and feeding wheel animalcule two days later, to throw something and feed completely artemia nauplii, whole throw something and feed wheel animalcule phase and halogen worm phase to splash chlorella liquid according to water colour, artifical compound feed domestication of throwing something and feeding is started when 15 days, on a small quantity repeatedly, every day 6 to 8 times, continue artemia nauplii of throwing something and feeding simultaneously, until juvenile fish adapts to artifical compound feed completely.
Further, the described crowded fish time, the time-division at dusk is selected in, under dark environment, keep quiet around.
The present invention's beneficial effect compared with prior art:
The invention provides the flat rockfish of Xu Shi and manually squeeze fish method, described method can be concentrated and obtain the flat rockfish prelarva of Xu Shi, is easy to cloth pond, improves the service efficiency of nursery pond, and prelarva concentrates acquisition, shortens the raun production time, saves manpower in a large number.The prelarva emergence rate simultaneously obtained by the inventive method is about 61.5%, is more or less the same with the naturally produced emergence rate of Xu Shi flat rockfish parent population 61%.
Embodiment
Below in conjunction with embodiment, technical solution of the present invention is described in further detail:
The flat rockfish of a kind of Xu Shi manually squeezes fish mating system, comprises Juvenile stage, indoor culture, manually squeezes fish, prelarva is brought back to life and seed rearing;
Step one, Juvenile stage: parent population cultivates through more than 3 years from wild fishing for, reached the raun of sexual maturity bosom prelarva, raun total length 400 ~ 500mm/ tail, body weight is 1.5 ~ 2.5kg about.Fish body is active, and abdominal distention, gonopore is red swollen.
Step 2, indoor are supported temporarily: the flat Rockfish of Xu Shi is ovoviviparity fish, after fertilization embryo grow in vivo, adopts the indoor cement pit flowing water culture having veil, change a water 2-4 range every day, keep water quality pure and fresh, small fish, small shrimps and artifical compound feed that parent population of throwing something and feeding is fresh or freezing; Cultivate density 5 ~ 10kg/m
3, continuous charge, illumination 200Lux, water temperature remains on 19.0 DEG C.
Step 3, manually squeeze fish: selecting namely will raun just before giving birth, encases, only expose belly and gonopore with the towel soaked.The belly to gonopore direction extruding fish gently, fully-developed prelarva can slowly flow in preprepared band water receptacle; In the process of crowded fish frequently pour into a mould fresh seawater to the towel soaked; The rate of outflow gently extruding parent population belly prelarva afterwards slows down or will slightly exert oneself just can extrude prelarva, is put back to by parent population in pond, according to need of production, carries out crowded prelarva again after 2-4 hour.
Step 4: prelarva is brought back to life: by the prelarva of band water receptacle, on a small quantity repeatedly, put into the Plastic Drum filling fresh seawater fast, leave standstill, the prelarva rotary top layer swimming over to water successively of bottom of the barrel, after half an hour, the prelarva that bottom of the barrel no longer floats is considered as dead fish (this degree of also squeezing prelarva for us provides favourable reference).The prelarva starting to extrude in about 60s, starts to bring back to life successively in water; Afterwards, the time that prelarva is brought back to life is more and more longer, and the prelarva quantity of bringing back to life is few, and statistics brings back to life the quantity of prelarva, according to 0.2 ten thousand/m
3throw in culturing pool.
Step 5, seed rearing: the juvenile fish of just having extruded, likeness in form tadpole, head is larger, and individuality is about 3.7 to 5.4mm, the juvenile fish opening of output, throws something and feeds through the brachionus plicatilis of chlorella strengthening after 5h.After 7 ~ 8 days, bait is based on the nauplius of halogen worm, and brachionus plicatilis of throwing something and feeding on a small quantity, reduces brachionus plicatilis feeding volume gradually, all stops throwing something and feeding wheel animalcule two days later.Whole wheel animalcule phase and halogen worm phase the splash chlorella liquid suitable according to water colour of throwing something and feeding.Start artifical compound feed domestication of throwing something and feeding when 15 days, on a small quantity repeatedly, average every day 6 to 8 times, continue artemia nauplii of throwing something and feeding simultaneously, feeding volume is sufficient, until juvenile fish adapts to artifical compound feed completely.Throwing something and feeding of manufactured feed lays the foundation for carrying out scale intensive culture after the flat rockfish of Xu Shi.
The cardinal principle of invention: wild or cage culture have been reached the flat rockfish raun of Xu Shi that sexual maturity bosom is young, supported temporarily, select just before giving birth parent population through indoor, manually squeezed fish, prelarva is brought back to life, and carries out seed rearing, thus obtains the flat Rockfish seed of Xu Shi of high-quality health.
Embodiment:
On May 15th, 2015, use said method to carry out the flat Rockfish of Xu Shi in Rizhao City, Shandong Province Xin Hui aquatic fry growing company and manually squeeze fish breeding, select the parent population (♀ of 20 gonad maturities, be fertilized), adopt the indoor cement pit flowing water culture having veil, every day changes water, keeps water quality pure and fresh, small fish, small shrimps and artifical compound feed that parent population of throwing something and feeding is fresh or freezing; Cultivate density 5 ~ 10kg/m
3, continuous charge, illumination 200Lux, water temperature remains on 19.0 DEG C.In afternoon May 24, pick 10 rauns just before giving birth, once manually squeeze fish and prelarva resurrection, the prelarva of resurrection is placed separately in culturing pool, about has 150,000 tails, and be on average arranged in 3 culturing pools, water temperature condition controls at 19.0 ± 0.1 DEG C.Evening, 8:00 started the brachionus plicatilis strengthened through chlorella of throwing something and feeding, the nauplius of halogen worm of throwing something and feeding for 5.30th, and June 15, artifical compound feed of throwing something and feeding, July 6, emerged, output fry about 9.3 ten thousand altogether, emergence rate 61.5%, more than specification 3cm;
All the other 10 just before giving birth raun natural production, be arranged in 3 culturing pools, three culturing pool density are not identical, and common property goes out nursery about 9.2 ten thousand, emergence rate 61%, more than specification 3cm.
The above, be only the specific embodiment of the present invention, but protection scope of the present invention is not limited thereto, and any change of expecting without creative work or replacement, all should be encompassed within protection scope of the present invention.Therefore, the protection domain that protection scope of the present invention should limit with claims is as the criterion.
Claims (5)
1. the flat rockfish of Xu Shi manually squeezes a prelarva mating system, it is characterized in that it comprises Juvenile stage, indoor and supports temporarily, manually squeezes fish, prelarva resurrection and seed rearing;
Describedly artificial squeeze fish: selecting namely will raun just before giving birth, and encase fish body with cloth-like thing wet from sea water and cover raun eyes, the belly to gonopore direction extruding fish gently, fully-developed prelarva can slowly flow in preprepared band water receptacle; Gently the rate of outflow of extruding parent population belly prelarva will stop crowded prelarva after slowing down afterwards, is put back to by parent population in pond, according to need of production, carries out crowded prelarva again after 2-4 hour;
Described prelarva is brought back to life: the prelarva of extruding is put into fast the Plastic Drum filling fresh seawater, leaves standstill, the prelarva rotary top layer swimming over to water successively of bottom of the barrel, starts to bring back to life successively; Statistics brings back to life the quantity of prelarva, according to 0.15 ~ 0.25 ten thousand/m
3throw in culturing pool.
2. the flat rockfish of a kind of Xu Shi according to claim 1 manually squeezes prelarva mating system, it is characterized in that described Juvenile stage: parent population is fished for or deep water mesh cage from wild, cultivated through more than 3 years, reach the raun of sexual maturity bosom prelarva, the specification of parent population is: 3 ~ 5 ages, total length 400 ~ 500mm/ tail, body weight 1.5 ~ 2.5kg; Fish body is active, abdominal distention is full, the red swollen evagination of gonopore.
3. the flat rockfish of a kind of Xu Shi according to claim 1 manually squeezes prelarva mating system, it is characterized in that described indoor are supported temporarily: adopt the indoor cement pit flowing water culture having veil, every day changes water, keep water quality pure and fresh, small fish, small shrimps and artifical compound feed that parent population of throwing something and feeding is fresh or freezing; Cultivate density 5 ~ 10kg/m
3, continuous charge, illumination 200Lux, water temperature remains on 19.0 DEG C.
4. the flat rockfish of a kind of Xu Shi according to claim 1 manually squeezes prelarva mating system, it is characterized in that described seed rearing: the juvenile fish of just having extruded, throw something and feed through the brachionus plicatilis of chlorella strengthening after 5h, after 7 ~ 8 days, bait is based on the nauplius of halogen worm, to throw something and feed on a small quantity brachionus plicatilis, reduce brachionus plicatilis feeding volume gradually, all stop throwing something and feeding wheel animalcule two days later, to throw something and feed completely artemia nauplii, whole throw something and feed wheel animalcule phase and halogen worm phase to splash chlorella liquid according to water colour, artifical compound feed domestication of throwing something and feeding is started when 15 days, on a small quantity repeatedly, every day 6 to 8 times, continue artemia nauplii of throwing something and feeding simultaneously, until juvenile fish adapts to artifical compound feed completely.
5. the flat rockfish of a kind of Xu Shi according to claim 1 manually squeezes prelarva mating system, it is characterized in that the described crowded fish time, be selected in the time-division at dusk, under dark environment, keep quiet around.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201511026008.6A CN105494208A (en) | 2015-12-31 | 2015-12-31 | Sebastes schlegeli artificial squeezing fry breeding method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201511026008.6A CN105494208A (en) | 2015-12-31 | 2015-12-31 | Sebastes schlegeli artificial squeezing fry breeding method |
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| Publication Number | Publication Date |
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| CN105494208A true CN105494208A (en) | 2016-04-20 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201511026008.6A Pending CN105494208A (en) | 2015-12-31 | 2015-12-31 | Sebastes schlegeli artificial squeezing fry breeding method |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107155957A (en) * | 2017-01-07 | 2017-09-15 | 李育培 | A kind of artificial fecundation method of rose Du rockfish |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107155957A (en) * | 2017-01-07 | 2017-09-15 | 李育培 | A kind of artificial fecundation method of rose Du rockfish |
| CN107155957B (en) * | 2017-01-07 | 2020-06-12 | 李育培 | Sebastes roseus artificial propagation method |
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Application publication date: 20160420 |