CN110024725A - A kind of artificial raise seedling method of scavenger - Google Patents
A kind of artificial raise seedling method of scavenger Download PDFInfo
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- CN110024725A CN110024725A CN201910443872.8A CN201910443872A CN110024725A CN 110024725 A CN110024725 A CN 110024725A CN 201910443872 A CN201910443872 A CN 201910443872A CN 110024725 A CN110024725 A CN 110024725A
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- selenium
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- 239000002516 radical scavenger Substances 0.000 title claims abstract description 25
- 238000000034 method Methods 0.000 title claims abstract description 24
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 42
- BUGBHKTXTAQXES-UHFFFAOYSA-N Selenium Chemical compound [Se] BUGBHKTXTAQXES-UHFFFAOYSA-N 0.000 claims abstract description 24
- 229910052711 selenium Inorganic materials 0.000 claims abstract description 24
- 239000011669 selenium Substances 0.000 claims abstract description 24
- 238000009395 breeding Methods 0.000 claims abstract description 22
- 230000001488 breeding effect Effects 0.000 claims abstract description 22
- 241000251468 Actinopterygii Species 0.000 claims abstract description 15
- 238000005276 aerator Methods 0.000 claims abstract description 13
- 241000894006 Bacteria Species 0.000 claims description 15
- 239000005415 artificial ingredient Substances 0.000 claims description 15
- 241000143060 Americamysis bahia Species 0.000 claims description 11
- 241000237858 Gastropoda Species 0.000 claims description 11
- 235000015099 wheat brans Nutrition 0.000 claims description 8
- 235000018290 Musa x paradisiaca Nutrition 0.000 claims description 7
- 241000108664 Nitrobacteria Species 0.000 claims description 7
- 240000008042 Zea mays Species 0.000 claims description 7
- 235000005824 Zea mays ssp. parviglumis Nutrition 0.000 claims description 7
- 235000002017 Zea mays subsp mays Nutrition 0.000 claims description 7
- 235000012813 breadcrumbs Nutrition 0.000 claims description 7
- 235000005822 corn Nutrition 0.000 claims description 7
- 235000013312 flour Nutrition 0.000 claims description 7
- 230000000243 photosynthetic effect Effects 0.000 claims description 7
- 239000002994 raw material Substances 0.000 claims description 7
- 241001247197 Cephalocarida Species 0.000 claims description 6
- 241000361919 Metaphire sieboldi Species 0.000 claims description 6
- 229920002472 Starch Polymers 0.000 claims description 6
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims description 6
- 229910052760 oxygen Inorganic materials 0.000 claims description 6
- 239000001301 oxygen Substances 0.000 claims description 6
- 235000019698 starch Nutrition 0.000 claims description 6
- 239000008107 starch Substances 0.000 claims description 6
- 241000252233 Cyprinus carpio Species 0.000 claims description 5
- 241000252234 Hypophthalmichthys nobilis Species 0.000 claims description 5
- 241000755266 Kathetostoma giganteum Species 0.000 claims description 5
- 241000700141 Rotifera Species 0.000 claims description 5
- 239000011449 brick Substances 0.000 claims description 5
- 239000013535 sea water Substances 0.000 claims description 5
- 241000133262 Nauplius Species 0.000 claims description 2
- CIWBSHSKHKDKBQ-JLAZNSOCSA-N Ascorbic acid Chemical compound OC[C@H](O)[C@H]1OC(=O)C(O)=C1O CIWBSHSKHKDKBQ-JLAZNSOCSA-N 0.000 claims 2
- 240000008790 Musa x paradisiaca Species 0.000 claims 2
- 239000004615 ingredient Substances 0.000 claims 2
- ZZZCUOFIHGPKAK-UHFFFAOYSA-N D-erythro-ascorbic acid Natural products OCC1OC(=O)C(O)=C1O ZZZCUOFIHGPKAK-UHFFFAOYSA-N 0.000 claims 1
- 229930003268 Vitamin C Natural products 0.000 claims 1
- 239000011083 cement mortar Substances 0.000 claims 1
- 239000000843 powder Substances 0.000 claims 1
- 239000013049 sediment Substances 0.000 claims 1
- 235000019154 vitamin C Nutrition 0.000 claims 1
- 239000011718 vitamin C Substances 0.000 claims 1
- 230000008901 benefit Effects 0.000 abstract description 5
- 230000004083 survival effect Effects 0.000 abstract description 5
- 230000000052 comparative effect Effects 0.000 description 12
- 241000234295 Musa Species 0.000 description 5
- 229940088594 vitamin Drugs 0.000 description 5
- 229930003231 vitamin Natural products 0.000 description 5
- 235000013343 vitamin Nutrition 0.000 description 5
- 239000011782 vitamin Substances 0.000 description 5
- 150000003722 vitamin derivatives Chemical class 0.000 description 5
- 239000004568 cement Substances 0.000 description 4
- 239000011505 plaster Substances 0.000 description 4
- 239000004576 sand Substances 0.000 description 4
- 238000003860 storage Methods 0.000 description 4
- 241001494106 Stenotomus chrysops Species 0.000 description 3
- 235000013372 meat Nutrition 0.000 description 3
- 241000251464 Coelacanthiformes Species 0.000 description 2
- 241000276618 Perciformes Species 0.000 description 2
- 238000010521 absorption reaction Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 241001417506 Lethrinidae Species 0.000 description 1
- 241001071853 Lethrinus nebulosus Species 0.000 description 1
- 240000007594 Oryza sativa Species 0.000 description 1
- 235000007164 Oryza sativa Nutrition 0.000 description 1
- 241000269799 Perca fluviatilis Species 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 239000003153 chemical reaction reagent Substances 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 238000012258 culturing Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000018109 developmental process Effects 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 238000009313 farming Methods 0.000 description 1
- 230000009605 growth rhythm Effects 0.000 description 1
- 230000012447 hatching Effects 0.000 description 1
- 230000036039 immunity Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 244000005700 microbiome Species 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 235000016709 nutrition Nutrition 0.000 description 1
- 230000035764 nutrition Effects 0.000 description 1
- 230000000050 nutritive effect Effects 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000001737 promoting effect Effects 0.000 description 1
- 235000009566 rice Nutrition 0.000 description 1
- -1 wheel Worm Substances 0.000 description 1
Classifications
-
- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01K—ANIMAL HUSBANDRY; CARE OF BIRDS, FISHES, INSECTS; FISHING; REARING OR BREEDING ANIMALS, NOT OTHERWISE PROVIDED FOR; NEW BREEDS OF ANIMALS
- A01K61/00—Culture of aquatic animals
- A01K61/10—Culture of aquatic animals of fish
-
- A—HUMAN NECESSITIES
- A23—FOODS OR FOODSTUFFS; TREATMENT THEREOF, NOT COVERED BY OTHER CLASSES
- A23K—FODDER
- A23K10/00—Animal feeding-stuffs
- A23K10/30—Animal feeding-stuffs from material of plant origin, e.g. roots, seeds or hay; from material of fungal origin, e.g. mushrooms
-
- A—HUMAN NECESSITIES
- A23—FOODS OR FOODSTUFFS; TREATMENT THEREOF, NOT COVERED BY OTHER CLASSES
- A23K—FODDER
- A23K10/00—Animal feeding-stuffs
- A23K10/30—Animal feeding-stuffs from material of plant origin, e.g. roots, seeds or hay; from material of fungal origin, e.g. mushrooms
- A23K10/37—Animal feeding-stuffs from material of plant origin, e.g. roots, seeds or hay; from material of fungal origin, e.g. mushrooms from waste material
-
- A—HUMAN NECESSITIES
- A23—FOODS OR FOODSTUFFS; TREATMENT THEREOF, NOT COVERED BY OTHER CLASSES
- A23K—FODDER
- A23K20/00—Accessory food factors for animal feeding-stuffs
- A23K20/10—Organic substances
- A23K20/163—Sugars; Polysaccharides
-
- A—HUMAN NECESSITIES
- A23—FOODS OR FOODSTUFFS; TREATMENT THEREOF, NOT COVERED BY OTHER CLASSES
- A23K—FODDER
- A23K50/00—Feeding-stuffs specially adapted for particular animals
- A23K50/80—Feeding-stuffs specially adapted for particular animals for aquatic animals, e.g. fish, crustaceans or molluscs
-
- 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
-
- 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
- Y02A40/818—Alternative feeds for fish, e.g. in aquacultures
-
- 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
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P60/00—Technologies relating to agriculture, livestock or agroalimentary industries
- Y02P60/80—Food processing, e.g. use of renewable energies or variable speed drives in handling, conveying or stacking
- Y02P60/87—Re-use of by-products of food processing for fodder production
Abstract
The present invention provides a kind of artificial raise seedling method of scavenger, the following steps are included: the setting of culture pond, the water quality management of culture pond, the management of aerator, three stage of prelarva cultivates, fry survival rate under conditions of artificial breeding is enabled to reach 90%, fish body is healthy and strong, fat content is lower, less than 20%, average body length reaches 40mm or more, selenium-rich amount 1.5mg/kg or more, growth is fast, period is short, it is Fresh & Tender in Texture, mouthfeel is fresh and crisp, scavenger seed can be cultivated on a large scale, meet the needs of large-scale cultivation, economic benefit and ecological benefits are significantly improved.
Description
Technical field
The present invention relates to aquatic products Cultivating techniques field, in particular to a kind of artificial raise seedling method of scavenger.
Background technique
Scavenger (Lethrinus nebulosus) is under the jurisdiction of Osteichthyes (Osteichthyes), Perciformes
(Perciformes), perch Superfamily (Percoidae), Luo Jia porgy section (Lethrinidae), naked cheek porgy category (Le-thrinus).Star
The naked cheek porgy of spot is mainly distributed in China originates in the South Sea, more with Hainan Province's yield.For the otter-trawl of the provinces such as Hainan, Guangdong, Guangxi
One of fishery catches and first-class good economic edible fishes, it is full of nutrition, and have become another in sea-farming
Excellent variety.But the cultural technique of scavenger is not yet mature at present, causes survival rate low, growth cycle is long, and meat is poor
Deng.
Summary of the invention
For mirror with this, the present invention proposes a kind of artificial raise seedling method of scavenger, solves above-mentioned technical problem.
The technical scheme of the present invention is realized as follows: a kind of artificial raise seedling method of scavenger, including following step
It is rapid:
(1) setting of culture pond
Select 3~5 mu of culture pond specification area, pond it is smooth, 3 meters of Chi Shen or more, 2.5 meters of water-storage depth or more, pond
Surrounding inner slope builds common brick, cement sand plaster, and bottom of pond is sandy loam, and intake-outlet is smooth, and pond quadrangle diagonal line installs aerator,
Prelarva breeding density is 4000~8000 tails/m2；
(2) water quality management of culture pond
Keep nursery pond transparency in 45~60cm, extracting seawater is adjusted, and every 3~5d changes water, controls water temperature 25
~30 DEG C, pH value is 6.0~9.0,3~5mg/L of dissolved oxygen, is splashed 1~3 photosynthetic bacteria 0.5~1 × 10 every 7~10d
9CFU/mL, 1.8~2.7 × 10 9CFU/mL of nitrobacteria, 1~2.2 × 10 9CFU/mL of denitrifying bacteria；
(3) management of aerator
In 30~60min of fine day noon or 2:00~3:00 in afternoon booting, cloudy next morning 5:00~7:00 booting 60
~80min；
(4) larvae cultivation
First stage: the fry of initial feeding is cultivated in the incubator reaches 1~3cm, raises 8~12d, and breeding density is
1500~3000 tails/m2, depth of water 1.8m is kept, it is 1~3:2.1~3.5:1.8~3.6:2~3.1 that mass ratio is fed after opening
Vitamin, wheel animalcule, water silk earthworm, artemia nauplii, feed 4~5 times that bait is prelarva；
Second stage: the fry that overall length is 3~6cm raises 12~15d, and breeding density is 1200~1500 tails/m2, keep
Depth of water 2.0m feeds the fries such as silver carp, flathead, the carp that mass ratio is 1:1~4:3~7, feeds 6~8 times that bait is prelarva, then turn
Enter and is cultivated into culture pond；
Phase III: the prelarva that overall length is 7~9cm is raised into 15~22d, breeding density is 300~500 tails/m2, keep
Depth of water 2.5m feeds fishes and shrimps, fish-egg, snail and artificial ingredient, feeds 8~10 times that bait is prelarva.
Further, the phase III artificial ingredient is composed of the following raw materials by weight: 38~70 parts of banana, selenium-rich are beautiful
Rice 21~65 parts, 44~50 parts of fine flour, 25~38 parts of starch, 50~80 parts of selenium-rich wheat bran, 60~100 parts of breadcrumbs.
Further, the phase III fishes and shrimps, fish-egg, snail mass ratio be 1~5:3~5:4~9.
Compared with prior art, the beneficial effects of the present invention are:
(1) present invention carries out water quality management to culture pond and aerator is arranged, lead to selecting smooth pond as culture pond
It crosses the setting to aerator and beneficial bacteria of splashing, purifies the water quality of culture pond, oxygen content is kept, under the action of microorganism
The culture pond effect that self purifies water is good, is conducive to the cultivation of nursery；
(2) in addition, nursery is divided into three phases is cultivated, each stage feeds different bait, and strict control
The ratio of bait accomplishes scientific collocation, the absorption for nursery of mutually promoting, in conjunction with the growth rhythm of prelarva, the of larvae cultivation
Three stages, addition in conjunction with fishes and shrimps, fish-egg, snail, promoted containing the artificial ingredient of selenium-rich in conjunction with the first and second stage breeding condition
Absorption during larvae growth to selenium element, can enhance the immunity of fish body, and then people can be reached by edible flesh
To the purpose of human body selenium-supply, method for culturing seedlings of the invention substantially increases survival rate, and growth and development is fast, with good meat quality, nutritive value
Height improves the economic benefit of scavenger cultivation.
Specific embodiment
In order to be best understood from the technology of the present invention content, specific embodiment is provided below, the present invention is described further.
Experimental method used in the embodiment of the present invention is conventional method unless otherwise specified.
Material used in the embodiment of the present invention, reagent etc., are commercially available unless otherwise specified.
Embodiment 1
A kind of artificial raise seedling method of scavenger, comprising the following steps:
(1) setting of culture pond
Select 3 mu of culture pond specification area, pond it is smooth, 3 meters of Chi Shen or more, 2.5 meters of water-storage depth or more, pond surrounding
Inner slope builds common brick, cement sand plaster, and bottom of pond is sandy loam, and intake-outlet is smooth, and pond quadrangle diagonal line installs aerator, prelarva
Breeding density is 4000 tails/m2；
(2) water quality management of culture pond
Keep nursery pond transparency in 45cm, extracting seawater is adjusted, and every 3d changes water, controls 25 DEG C of water temperature, pH value
It is 6.0, dissolved oxygen 3mg/L splashes 1 photosynthetic bacteria 0.5 × 10 every 7d9CFU/mL, nitrobacteria 1.8 × 109CFU/mL、
Denitrifying bacteria 1 × 109CFU/mL；
(3) management of aerator
In fine day noon or 2:00~3:00 in afternoon booting 30min, cloudy next morning 5:00~7:00 booting 60min；
(4) larvae cultivation
First stage: the fry of initial feeding is cultivated in the incubator reaches 1cm, raise 8d, breeding density be 1500 tails/
m2, depth of water 1.8m is kept, it is young without section that vitamin, wheel animalcule, water silk earthworm, artemia that mass ratio is 1:2.1:1.8:2 are fed after opening
Body feeds 4 times that bait is prelarva；
Second stage: the fry that overall length is 3~6cm raises 12d, and breeding density is 1200 tails/m2, depth of water 2.0m is kept,
It feeds the fries such as silver carp, flathead, the carp that mass ratio is 1:1:3 and feeds 6 times that bait is prelarva, then be transferred in culture pond and cultivate；
Phase III: the prelarva that overall length is 7~9cm is raised into 15~22d, breeding density is 300 tails/m2, keep the depth of water
2.5m feeds fishes and shrimps, fish-egg, snail and artificial ingredient, feeds 8 times that bait is prelarva.
Further, the phase III artificial ingredient is composed of the following raw materials by weight: 38 parts of banana, selenium-rich corn 21
Part, 44 parts of fine flour, 25 parts of starch, 50 parts of selenium-rich wheat bran, 60 parts of breadcrumbs.
Further, the phase III fishes and shrimps, fish-egg, snail mass ratio be 1:3:4.
Embodiment 2
A kind of artificial raise seedling method of scavenger, comprising the following steps:
(1) setting of culture pond
Select 5 mu of culture pond specification area, pond it is smooth, 3 meters of Chi Shen or more, 2.5 meters of water-storage depth or more, pond surrounding
Inner slope builds common brick, cement sand plaster, and bottom of pond is sandy loam, and intake-outlet is smooth, and pond quadrangle diagonal line installs aerator, prelarva
Breeding density is 8000 tails/m2；
(2) water quality management of culture pond
Keep nursery pond transparency in 60cm, extracting seawater is adjusted, and every 5d changes water, controls 30 DEG C of water temperature, pH value
It is 9.0, dissolved oxygen 5mg/L splashes 3 photosynthetic bacterias 1 × 10 every 10d9CFU/mL, nitrobacteria 2.7 × 109CFU/mL、
Denitrifying bacteria 2.2 × 109CFU/mL；
(3) management of aerator
In fine day noon or 2:00~3:00 in afternoon booting 60min, cloudy next morning 5:00~7:00 booting 80min；
(4) larvae cultivation
First stage: the fry of initial feeding is cultivated in the incubator reaches 3cm, raises 12d, breeding density 3000
Tail/m2, depth of water 1.8m is kept, mass ratio is 3:3.5:3.6:3.1 after opening vitamin, wheel animalcule, water silk earthworm, artemia are without section children
Body feeds 4~5 times that bait is prelarva；
Second stage: the fry that overall length is 3~6cm raises 15d, and breeding density is 1500 tails/m2, depth of water 2.0m is kept,
The fries such as silver carp, flathead, the carp that mass ratio is 1:4:7 are fed, feed 6~8 times that bait is prelarva, then be transferred in culture pond
It cultivates；
Phase III: the prelarva that overall length is 7~9cm is raised into 15~22d, breeding density is 300~500 tails/m2, keep
Depth of water 2.5m feeds fishes and shrimps, fish-egg, snail and artificial ingredient, feeds 8~10 times that bait is prelarva.
Further, the phase III artificial ingredient is composed of the following raw materials by weight: 70 parts of banana, selenium-rich corn 65
Part, 50 parts of fine flour, 38 parts of starch, 80 parts of selenium-rich wheat bran, 100 parts of breadcrumbs.
Further, the phase III fishes and shrimps, fish-egg, snail mass ratio be 5:5:9
Embodiment 3
A kind of artificial raise seedling method of scavenger, comprising the following steps:
(1) setting of culture pond
Select 4 mu of culture pond specification area, pond it is smooth, 3 meters of Chi Shen or more, 2.5 meters of water-storage depth or more, pond surrounding
Inner slope builds common brick, cement sand plaster, and bottom of pond is sandy loam, and intake-outlet is smooth, and pond quadrangle diagonal line installs aerator, prelarva
Breeding density is 6000 tails/m2；
(2) water quality management of culture pond
Keep nursery pond transparency in 50cm, extracting seawater is adjusted, and every 4d changes water, controls 28 DEG C of water temperature, pH value
It is 7.0, dissolved oxygen 4mg/L splashes 2 photosynthetic bacterias 0.8 × 10 every 8d9CFU/mL, nitrobacteria 2.3 × 109CFU/
ML, denitrifying bacteria 1.8 × 109CFU/mL；
(3) management of aerator
In fine day noon or 2:00~3:00 in afternoon booting 50min, cloudy next morning 5:00~7:00 booting 70min；
(4) larvae cultivation
First stage: the fry of initial feeding is cultivated in the incubator reaches 1~3cm, raises 10d, and breeding density is
2000 tails/m2, depth of water 1.8m is kept, vitamin, wheel animalcule, water silk earthworm, artemia that mass ratio is 2:3:2.8:2.5 are fed after opening
Nauplius feeds 4.5 times that bait is prelarva；
Second stage: the fry that overall length is 3~6cm raises 13d, and breeding density is 1300 tails/m2, depth of water 2.0m is kept,
The fries such as silver carp, flathead, the carp that mass ratio is 1:2:5 are fed, feed 7 times that bait is prelarva, then be transferred in culture pond and cultivate；
Phase III: the prelarva that overall length is 7~9cm is raised into 18d, breeding density is 400 tails/m2, depth of water 2.5m is kept,
Fishes and shrimps, fish-egg, snail and artificial ingredient are fed, feeds 9 times that bait is prelarva.
Further, the phase III artificial ingredient is composed of the following raw materials by weight: 52 parts of banana, selenium-rich corn 43
Part, 47 parts of fine flour, 32 parts of starch, 65 parts of selenium-rich wheat bran, 80 parts of breadcrumbs.
Further, the phase III fishes and shrimps, fish-egg, snail mass ratio be 3:4:7.
Comparative example 1
This comparative example is distinguished with embodiment 3 to be, a kind of artificial raise seedling method of scavenger, in culture pond
In water quality management, do not splash photosynthetic bacteria, nitrobacteria, denitrifying bacteria.
Comparative example 2
This comparative example is distinguished with embodiment 3 to be, a kind of artificial raise seedling method of scavenger, in larvae cultivation
In the process, it is cultivated using same stage, bait is 1~3:2.1 of mass ratio~3.5:1.8~3.6:2~3.1 vitamin, wheel
Worm, water silk earthworm, artemia nauplii feed 4~5 times that bait is prelarva.
Comparative example 3
This comparative example is that a kind of artificial raise seedling method of scavenger, the prelarva is trained with the difference of embodiment 3
It educates in phase III artificial ingredient, does not contain selenium-rich corn, selenium-rich wheat bran.
Comparative example 4
This comparative example is that a kind of artificial raise seedling method of scavenger, the prelarva is trained with the difference of embodiment 3
It educates phase III artificial ingredient to be composed of the following raw materials by weight: 20 parts of banana, 18 parts of selenium-rich corn, 40 parts of fine flour, starch 22
Part, 45 parts of selenium-rich wheat bran, 50 parts of breadcrumbs.
As a result it measures
The present invention to the hatching rate of above-described embodiment 1~3 and the obtained scavenger of comparative example 1~4, survival rate,
The indexs such as fat content, average weight, meat situation are counted, and the results are shown in Table 1.
As shown in Table 1, the artificial raise seedling method of a kind of scavenger of the invention, in the cultivating condition control of culture pond
Under water quality management, for embodiment compared in comparative example 1, fry survival rate can reach 90% under conditions of artificial breeding；In addition
The bait matching coordinative of scientific matching, is divided into three phases and is deployed, and the artificial ingredient of selenium-rich is rationally added, so that in embodiment
Under make comparisons of the comparative example 2 using same stage cultivation, hence it is evident that fish body is healthy and strong in embodiment, and fat content is lower, is less than
20%, average body length reaches 40mm or more；In comparative example 3~4, of the invention match is not met without the artificial ingredient of selenium-rich or
Than, and in the larvae cultivation stage of the invention, average selenium-rich amount is in 1.5mg/kg or more, and growth is fast, the period is short, and it is Fresh & Tender in Texture,
Mouthfeel is fresh and crisp, can cultivate scavenger seed on a large scale, meet the needs of large-scale cultivation, economic benefit and Ecological Effect
Benefit is significantly improved.
The foregoing is merely illustrative of the preferred embodiments of the present invention, is not intended to limit the invention, all in essence of the invention
Within mind and principle, any modification, equivalent replacement, improvement and so on be should all be included in the protection scope of the present invention.
Claims (5)
1. a kind of artificial raise seedling method of scavenger, it is characterised in that: the following steps are included:
(1) setting of culture pond
Select 3~5 mu of culture pond specification area, pond it is smooth, 3 meters of Chi Shen or more, pond surrounding inner slope build common brick, cement mortar
Plastering, bottom of pond are sandy loam, and intake-outlet is smooth, and pond quadrangle diagonal line installs aerator；
(2) water quality management of culture pond
Keep nursery pond transparency in 45~60cm, extracting seawater is adjusted, and every 3~5d changes water, controls water temperature 25~30
DEG C, pH value is 6.0~9.0,3~5mg/L of dissolved oxygen, is splashed 1~3 photosynthetic bacteria 0.5~1 × 10 every 7~10d9CFU/
ML, nitrobacteria 1.8~2.7 × 109CFU/mL, denitrifying bacteria 1~2.2 × 109CFU/mL；
(3) management of aerator
It is switched on 30~60min in fine day noon or 2:00~3:00 in afternoon, cloudy next morning 5:00~7:00 booting 60~
80min；
(4) larvae cultivation
First stage: the fry of initial feeding is cultivated in the incubator reaches 1~3cm, raises 8~12d, breeding density 1500
~3000 tails/m2, depth of water 1.8m is kept, 35~52 parts of vitamin C, 28~66 parts of wheel animalcule, 32~49 parts of water silk earthworm, artemia are fed
21~75 parts of nauplius, feed 4~5 times that bait is prelarva；
Second stage: the fry that overall length is 3~6cm raises 12~15d, and breeding density is 1200~1500 tails/m2, keep the depth of water
2.0m feeds silver carp, flathead, carp fry and artificial ingredient that mass ratio is 1:1~4:3~7, feeds 6~8 times that bait is prelarva,
It is transferred in culture pond and cultivates again；
Phase III: the prelarva that overall length is 7~9cm is raised into 15~22d, breeding density is 300~500 tails/m2, keep the depth of water
2.5m feeds fishes and shrimps, fish-egg, snail and artificial ingredient, feeds 8~10 times that bait is prelarva.
2. a kind of artificial raise seedling method of scavenger as described in claim 1, it is characterised in that: the photosynthetic bacteria 33
~40 parts, 20~23 parts of nitrobacteria, 30~35 parts of denitrifying bacteria.
3. a kind of artificial raise seedling method of scavenger as described in claim 1, it is characterised in that: the phase III people
Work ingredient is composed of the following raw materials by weight: 38~70 parts of banana, 21~65 parts of selenium-rich corn, 44~50 parts of fine flour, starch 25
~38 parts, 50~80 parts of selenium-rich wheat bran, 60~100 parts of breadcrumbs.
4. a kind of artificial raise seedling method of scavenger as described in claim 1, it is characterised in that: the phase III people
Work ingredient is composed of the following raw materials by weight: 38~70 parts of banana, 44~50 parts of fine flour, forms sediment at 21~65 parts of selenium-rich selenium-rich corn
25~38 parts of powder, 50~80 parts of selenium-rich selenium-rich wheat bran, 60~100 parts of breadcrumbs.
5. a kind of artificial raise seedling method of scavenger as described in claim 1, it is characterised in that: the phase III fish
Shrimp, fish-egg, snail mass ratio be 1~5:3~5:4~9.
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