CN105075955A - Fry culture cultivating method for schizothorax prenanti - Google Patents
Fry culture cultivating method for schizothorax prenanti Download PDFInfo
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- 238000000034 method Methods 0.000 title abstract description 9
- 241001275865 Schizothorax prenanti Species 0.000 title abstract 6
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 110
- 241000251468 Actinopterygii Species 0.000 claims abstract description 50
- 210000002969 egg yolk Anatomy 0.000 claims abstract description 21
- 239000000463 material Substances 0.000 claims abstract description 21
- 241001247197 Cephalocarida Species 0.000 claims abstract description 12
- 241000700141 Rotifera Species 0.000 claims abstract description 12
- 230000000384 rearing effect Effects 0.000 claims description 47
- 241001439627 Schistostoma Species 0.000 claims description 26
- 210000001015 abdomen Anatomy 0.000 claims description 26
- 238000004659 sterilization and disinfection Methods 0.000 claims description 26
- 230000003203 everyday effect Effects 0.000 claims description 22
- 230000001954 sterilising effect Effects 0.000 claims description 19
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- CIWBSHSKHKDKBQ-JLAZNSOCSA-N Ascorbic acid Chemical compound OC[C@H](O)[C@H]1OC(=O)C(O)=C1O CIWBSHSKHKDKBQ-JLAZNSOCSA-N 0.000 claims description 18
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- 239000001763 2-hydroxyethyl(trimethyl)azanium Substances 0.000 claims description 8
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- 235000019733 Fish meal Nutrition 0.000 claims description 8
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims description 8
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- 229960003178 choline chloride Drugs 0.000 claims description 8
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- 239000012286 potassium permanganate Substances 0.000 claims description 8
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- JLPULHDHAOZNQI-ZTIMHPMXSA-N 1-hexadecanoyl-2-(9Z,12Z-octadecadienoyl)-sn-glycero-3-phosphocholine Chemical compound CCCCCCCCCCCCCCCC(=O)OC[C@H](COP([O-])(=O)OCC[N+](C)(C)C)OC(=O)CCCCCCC\C=C/C\C=C/CCCCC JLPULHDHAOZNQI-ZTIMHPMXSA-N 0.000 claims description 7
- 241000287828 Gallus gallus Species 0.000 claims description 7
- 244000068988 Glycine max Species 0.000 claims description 7
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- 229920002472 Starch Polymers 0.000 claims description 7
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- YYRMJZQKEFZXMX-UHFFFAOYSA-L calcium bis(dihydrogenphosphate) Chemical compound [Ca+2].OP(O)([O-])=O.OP(O)([O-])=O YYRMJZQKEFZXMX-UHFFFAOYSA-L 0.000 claims description 7
- 229940062672 calcium dihydrogen phosphate Drugs 0.000 claims description 7
- 229910000389 calcium phosphate Inorganic materials 0.000 claims description 7
- UHZZMRAGKVHANO-UHFFFAOYSA-M chlormequat chloride Chemical compound [Cl-].C[N+](C)(C)CCCl UHZZMRAGKVHANO-UHFFFAOYSA-M 0.000 claims description 7
- 235000021323 fish oil Nutrition 0.000 claims description 7
- 238000011534 incubation Methods 0.000 claims description 7
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- 150000003839 salts Chemical class 0.000 claims description 7
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- 230000007613 environmental effect Effects 0.000 claims description 6
- 230000000366 juvenile effect Effects 0.000 abstract description 10
- 230000004083 survival effect Effects 0.000 abstract description 8
- 102000002322 Egg Proteins Human genes 0.000 abstract description 4
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- 241001233061 earthworms Species 0.000 abstract 2
- CPKVUHPKYQGHMW-UHFFFAOYSA-N 1-ethenylpyrrolidin-2-one;molecular iodine Chemical compound II.C=CN1CCCC1=O CPKVUHPKYQGHMW-UHFFFAOYSA-N 0.000 abstract 1
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- QBKSWRVVCFFDOT-UHFFFAOYSA-N gossypol Chemical compound CC(C)C1=C(O)C(O)=C(C=O)C2=C(O)C(C=3C(O)=C4C(C=O)=C(O)C(O)=C(C4=CC=3C)C(C)C)=C(C)C=C21 QBKSWRVVCFFDOT-UHFFFAOYSA-N 0.000 description 2
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- KDXKERNSBIXSRK-UHFFFAOYSA-N Lysine Natural products NCCCCC(N)C(O)=O KDXKERNSBIXSRK-UHFFFAOYSA-N 0.000 description 1
- 239000004472 Lysine Substances 0.000 description 1
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 description 1
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- 235000013793 astaxanthin Nutrition 0.000 description 1
- MQZIGYBFDRPAKN-ZWAPEEGVSA-N astaxanthin Chemical compound C([C@H](O)C(=O)C=1C)C(C)(C)C=1/C=C/C(/C)=C/C=C/C(/C)=C/C=C/C=C(C)C=CC=C(C)C=CC1=C(C)C(=O)[C@@H](O)CC1(C)C MQZIGYBFDRPAKN-ZWAPEEGVSA-N 0.000 description 1
- 229940022405 astaxanthin Drugs 0.000 description 1
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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
-
- 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
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Environmental Sciences (AREA)
- Marine Sciences & Fisheries (AREA)
- Zoology (AREA)
- Animal Husbandry (AREA)
- Biodiversity & Conservation Biology (AREA)
- Fodder In General (AREA)
- Feed For Specific Animals (AREA)
Abstract
The invention discloses a fry culture cultivating method for schizothorax prenanti. After a fish pond is disinfected, fish fry disinfected with a povidone-iodine solution are put in the pond, micro-flow water is adopted for cultivation, cooked egg yolk is thrown and fed to the fry for several days, plankton bait is thrown and fed to the fry after 5-7 days, cut water earthworms and broken juvenile schizothorax prenanti materials are thrown and fed to the fry after 20 days, and juvenile schizothorax prenanti feed is thrown and fed to the fry till the fry reach the specification of larva fish. The schizothorax prenanti fish fry cultivated through the method are low in cost, high in survival rate and quick in growth, the cooked egg yolk, the rotifer and cladocera plankton bait, and the water earthworms and the juvenile schizothorax prenanti feed are thrown and fed to the fry in a staged mode, and therefore the high growth rate can be kept at each stage.
Description
Technical field
Embodiments of the present invention relate to fish culture industry, and more specifically, embodiments of the present invention relate to a kind of neat mouth schizothoracin nursery breeding method.
Background technology
Neat mouth schizothoracin is named again refined fish, Qi Kou, thin soft-shelled turtle, neat mouth brachymystax lenok, belong to cold water fishes, for demersal fishes, require lower temperature environment, like moving in the anxious intersection that flows slowly, move in a small bay in a river of unhurried current more at ordinary times, ingest season substrate be husky and gravel, activity in the environment that The turbulent river crashes its way through, have short-range breeding migration phenomenon, female need 4 reach sexual maturity age, malely generally reach sexual maturity in 3 ages.Neat mouth schizothoracin is distributed in the water system such as Ming River, Dadu River, the important food fish of the one for Upper Yangtze River, individual large, is generally 0.5-1.0kg, maximumly reaches 4.0-5.0kg.Because its meat is fertile, be rich in fat, be loved by the people, serious owing to illegally fishing in recent years, cause wild neat mouth schizothoracin increasingly to reduce, existing market price has reached 160 ~ 200 yuan/Kg, seed price is 0.8 ~ 1 yuan/cm, and market is very in short supply, endangered at present, the neat mouth schizothoracin of artificial propagation has become a kind of inevitable.Although schizothoracin cultivation has had some report, the special technology propagated artificially for neat mouth schizothoracin is little.
Publication number is CN102484983A, the Chinese patent application of CN200410022179.7 individually discloses the method for schizothoracin artificial propagation, it is insemination disclosed in main, hatching, the breeding condition in the stages such as nursery cultivation, such as temperature, time, environmental requirement etc., the bait of juvenile fish of throwing something and feeding is only water earthworm, yellow mealworm, the biological bait such as fly maggot, although this kind of bait can provide more nutriment, but nutrition is not comprehensive, there is no the growth different phase for juvenile fish and the bait of throwing something and feeding adapted is provided, the breeding method of the fry of the neat mouth schizothoracin of science is not had yet.
Summary of the invention
Instant invention overcomes the deficiencies in the prior art, a kind of neat mouth schizothoracin nursery breeding method is provided, to expect to improve fry growth speed and immunity by more reasonable science fry rearing method.
For solving above-mentioned technical problem, one embodiment of the present invention by the following technical solutions:
A kind of neat mouth schizothoracin nursery breeding method, as follows to fry rearing environmental requirement:
Water source: water quality is limpid, water temperature is 13-22 DEG C, more than dissolved oxygen 6.8mg/L, and pH value is 7.0-7.5, and flow rate of water flow is adjustable within the scope of 0.4-1.5m/s;
20-23m is taken up an area in fry rearing pond
2, depth of water 50-80cm;
Concrete incubation step is as follows:
(1) before fry enters pond, by fry rearing pond 1.8-2.2g/m every day
3potassium permanganate to sterilize at least 30min, continuous sterilization completed sterilization after at least 3 days; Put first 3 days of seedling to water filling in pond, water inlet 60 mesh sieve tulles in fry rearing pond filter;
(2) Betagen Solution of rupture of membranes being put down the neat schistostoma abdomen fish and water flower 0.45-0.55g/L after trip soaks 5-10min disinfection, then neat schistostoma abdomen fish and water flower is put into fry rearing pond, open the water inlet in fry rearing pond, adopt micro-running water technology, flow velocity is 0.4-0.6m/s;
(3) the ripe yolk that 200 mesh sieve tulles of throwing something and feeding after neat schistostoma abdomen fish and water flower enters pond filter, 1 yolk of throwing something and feeding every ten thousand tail fry days; To throw something and feed after 5-7d the plankton bait containing wheel animalcule and cladocera of plankton amount >=30000/L, day feeding volume be 120L; Mainly to throw something and feed after 20d the water earthworm shredded, day feeding volume be 10% of neat mouth schizothoracin fry TBW, and neat mouth schizothoracin scrod feed broken material of arranging in pairs or groups, day feeding volume be the 1%-2% of neat mouth schizothoracin fry TBW; Every day throws something and feeds several times, and after throwing something and feeding, 30min removes remaining bait and excreta at the bottom of pond at every turn;
(4) fry is all tamed after reaching black young head specification, turn food neat mouth schizothoracin scrod feed, every day throws something and feeds several times, day feeding volume be the 7%-8% of black young head TBW.
Further technical scheme is: described neat mouth schizothoracin nursery breeding method is as follows to fry rearing environmental requirement:
Water source: water quality is limpid, water temperature is 13-22 DEG C, more than dissolved oxygen 6.8mg/L, and pH value is 7.0-7.5, and flow rate of water flow is adjustable within the scope of 0.4-1.5m/s;
21m is taken up an area in fry rearing pond
2, depth of water 50-80cm;
Concrete incubation step is as follows:
(1) before fry enters pond, by fry rearing pond 2g/m every day
3potassium permanganate to sterilize at least 30min, continuous sterilization completed sterilization after at least 3 days; Put first 3 days of seedling to water filling in pond, water inlet 60 mesh sieve tulles in fry rearing pond filter;
(2) Betagen Solution of rupture of membranes being put down the neat schistostoma abdomen fish and water flower 0.5g/L after trip soaks 5min disinfection, then neat schistostoma abdomen fish and water flower is put into fry rearing pond, open the water inlet in fry rearing pond, adopt micro-running water technology, flow velocity is 0.5m/s;
(3) the ripe yolk that 200 mesh sieve tulles of throwing something and feeding after neat schistostoma abdomen fish and water flower enters pond filter, 1 yolk of throwing something and feeding every ten thousand tail fry days; To throw something and feed after 7d the plankton bait containing wheel animalcule and cladocera of plankton amount >=30000/L, day feeding volume be 120L; Mainly to throw something and feed after 20d the water earthworm shredded, day feeding volume be 10% of neat mouth schizothoracin fry TBW, and neat mouth schizothoracin scrod feed broken material of arranging in pairs or groups, day feeding volume be 1% of neat mouth schizothoracin fry TBW; Every day throws something and feeds several times, and after throwing something and feeding, 30min removes remaining bait and excreta at the bottom of pond at every turn;
(4) fry is all tamed after reaching black young head specification, turn food neat mouth schizothoracin scrod feed, every day throws something and feeds several times, day feeding volume be 8% of black young head TBW.
Further technical scheme is: the formula of described neat mouth schizothoracin scrod feed parts by weights meter is as follows:
Fish meal 30-55 part, Soybean Meal 10-20 part, dephenolize cotton dregs 4-10 part, chicken meal 5-10 part, euphausia superba powder 2-4 part, Strong flour 10-18 part, alphalise starch 5-15 part, squid viscera powder 1-3 part, fish oil 2-6 part, soya-bean oil 2-6 part, soybean lecithin 2-5 part, vitamin premix 0.3-1 part, microelement pre-mix material 1-3 part, calcium dihydrogen phosphate 1-3 part, salt 0.1-0.3 part, mould inhibitor 0.03-0.05 part, Choline Chloride 0.1-0.25 part, vitamin C acetate 0.4-0.8 part, vitamin E 0.02-0.05 part, high temperature resistant phytase 0.01-0.05 part, yeast extract 0.05-0.1 part, hepatic cholagogic element 0.03-0.05 part.
Preferably, the formula of described neat mouth schizothoracin scrod feed parts by weights meter is as follows:
Fish meal 35 parts, Soybean Meal 12 parts, dephenolize cotton dregs 5 parts, chicken meal 7 parts, euphausia superba powder 3 parts, Strong flour 10 parts, alphalise starch 10 parts, 3 parts, squid viscera powder, 3 parts, fish oil, 3 parts, soya-bean oil, soybean lecithin 3 parts, vitamin premix 0.75 part, microelement pre-mix material 2 parts, calcium dihydrogen phosphate 2 parts, salt 0.3 part, mould inhibitor 0.05 part, Choline Chloride 0.2 part, vitamin C acetate 0.5 part, vitamin E 0.02 part, high temperature resistant phytase 0.03 part, yeast extract 0.1 part, hepatic cholagogic element 0.05 part.
Strong flour refer to protein quality content more than 11.5%, protein average quality content be about 13.5% flour, Strong flour can provide more energy for juvenile fish.
Yeast extract is rich in nucleotide, active peptide, free amino acid, immune polysaccharide and B family vitamin etc.; Can whet the appetite, improve feed intake; Repair because disease maybe stress wait the intestinal mucosal injury caused, promote digesting and assimilating of nutriment; Reduce stress reaction, steady production; Repair ability under raising stress situation after hepar damnification; Strengthen cellular immunity, stimulate the hyperplasia of lymphocyte and antibody, improve animal to the resistance of bacterium, virus, fungi, improve gastrointestinal bacterial flora structure; The yeast extract that preferred employing Guangdong Atech Biotechnology Co., Ltd. provides.
Common cotton dregs contain more gossypol, which not only reduces the availability of lysine in daily ration, simultaneously on the murder by poisoning main manifestations of juvenile fish for affect hematopoiesis function, anaemia is caused to cause growth of animal to be obstructed, also affect the digestive function of juvenile fish simultaneously, can cause damage to fish body enteron aisle, affect fry growth, and dephenolize cotton dregs ensure the safety of feeding.
Euphausia superba powder well remains nutrient component and the build color and luster of krill, and yellowish pink presents brick-red, and the fresh raw meat of taste is strong, nutritious, can provide the nutrition of general equilibrium for juvenile fish, protein content is higher, and natural astaxanthin is 40 times more than of common fish meal.Euphausia superba powder is rich in strong low temperature ecological enzyme, promotes digestion, can improve efficiency of feed utilization, promotes the growth of fish.Add in scrod feed, phagostimulating effect is good, and can improve the survival rate of fish, growth rate is fast.The euphausia superba powder that preferred use Qingdao Kang Jing marine organisms Science and Technology Ltd. provides.
Vitamin C acetate and vitamin E: utilize the mutual synergism that the vitamin C of specific consumption and vitamin E are arranged in pairs or groups when using, effectively can improve immunity and the anti-oxidation stress ability of neat mouth schizothoracin body, reduce the impact of extraneous factor and stress align schistostoma abdomen fish growth performance, efficiency of feed utilization etc., strengthen fish body immunity, improve juvenile fish anti-stress ability, improve survival rate of fish fry.
High temperature resistant phytase: add the availability that high temperature resistant phytase effectively can improve phytate phosphorus in plant protein source in feed, improves efficiency of feed utilization.The high temperature resistant phytase of letter (China) Bioisystech Co., Ltd of preferred use Novi or Guangdong Yi Duoli biotechnology joint-stock company.
Squid viscera powder is preferably provided by Guangzhou Xintun Aquatic Product Technology Co., Ltd..
Scrod feed of the present invention with the addition of the nutrient component such as Choline Chloride, hepatic cholagogic element, can promote the metabolism of fish liver fat, reduce the generation of fish body fat liver, be conducive to maintaining fish body healthy.
Further technical scheme is: fry rearing pond adopts the flow velocity of micro-running water technology to be 0.8-1.5m/s in step (4).
Further technical scheme is: throw something and feed several times step (3) described every day and refer to that every bu is thrown something and fed for 6-8 time, throws something and feeds several times step (4) described every day and refers to that every bu is thrown something and fed for 4-5 time.
Compared with prior art, one of beneficial effect of the present invention is: adopt the method for the invention to cultivate neat schistostoma abdomen fish and water flower, cost is low, survival rate is high, growth is fast, by fry rearing environmental Kuznets Curves in suitable scope, adopt micro-running water technology fry, the flow velocity that spray cultivates early stage is 0.4-0.6m/s, the flow velocity that later stage turns after the neat mouth schizothoracin scrod feed of food is 0.8-1.5m/s, dissolved oxygen can be kept at more than 6.8mg/L, make pH remain on 7.0-7.5 always, get rid of fish excreta, keep water quality, water temperature can make pelyad spray grow with good state and speed at 13-22 DEG C, the present invention adopts 1.8-2.2g/m
3potassium permanganate sterilization to fry rearing pond continuous sterilization and adopt Betagen Solution soak spray, reduce fry to catch and dead probability, improve survival rate, adopt ripe yolk, wheel animalcule and cladocera plankton bait, water earthworm and neat mouth schizothoracin scrod feed to throw something and feed stage by stage, each stage can be kept to have higher growth rate.
Embodiment
In order to make object of the present invention, technical scheme and advantage clearly understand, below in conjunction with embodiment, the present invention is further elaborated.Should be appreciated that specific embodiment described herein only in order to explain the present invention, be not intended to limit the present invention.
" part " in following examples refers to mass parts.
In each embodiment, yolk used is egg yolk or Ovum Anas domestica yolk, and ripe yolk counterpoise is about 10g.
Embodiment 1
By fish meal 35 parts, Soybean Meal 12 parts, dephenolize cotton dregs 5 parts, chicken meal 7 parts, euphausia superba powder 3 parts, Strong flour 10 parts, alphalise starch 10 parts, 3 parts, squid viscera powder, 3 parts, fish oil, 3 parts, soya-bean oil, soybean lecithin 3 parts, vitamin premix 0.75 part, microelement pre-mix material 2 parts, calcium dihydrogen phosphate 2 parts, salt 0.3 part, mould inhibitor 0.05 part, Choline Chloride 0.2 part, vitamin C acetate 0.5 part, vitamin E 0.02 part, high temperature resistant phytase 0.03 part, yeast extract 0.1 part, hepatic cholagogic element 0.05 part mixes, then the pellet that particle diameter is 1mm is made, obtain here schistostoma abdomen fish scrod feed.By fodder crushing wherein, obtain fodder smashing material, broken material crosses 80 mesh sieves.
Prepare the plankton bait containing wheel animalcule and cladocera of plankton amount >=30000/L, and it is for subsequent use to prepare suitable quantity of water earthworm.
Fry rearing environment:
Water source: water quality is limpid, water temperature is 13-22 DEG C, more than dissolved oxygen 6.8mg/L, and pH value is 7.0-7.5, and flow rate of water flow is adjustable within the scope of 0.4-1.5m/s;
21m is taken up an area in fry rearing pond
2, depth of water 60cm;
Concrete incubation step:
(1) before fry enters pond, by fry rearing pond 2g/m every day
3potassium permanganate sterilization 30min, continuous sterilization completed sterilization after 3 days; Put first 3 days of seedling to water filling in pond, water inlet 60 mesh sieve tulles in fry rearing pond filter;
(2) Betagen Solution of rupture of membranes being put down the neat schistostoma abdomen fish and water flower 0.5g/L after trip soaks 5min disinfection, then neat schistostoma abdomen fish and water flower is put into fry rearing pond, open the water inlet in fry rearing pond, adopt micro-running water technology, flow velocity is about 0.5m/s;
(3) the ripe yolk that 200 mesh sieve tulles of throwing something and feeding after neat schistostoma abdomen fish and water flower enters pond filter, 1 yolk of throwing something and feeding every ten thousand tail fry days; Throw something and feed after 7d the plankton bait containing wheel animalcule and cladocera of plankton amount >=30000/L, throw something and feed every day 6 times, throw something and feed 20L at every turn; Mainly to throw something and feed after 20d the water earthworm shredded, day feeding volume is 10% of neat mouth schizothoracin fry TBW, and neat mouth schizothoracin scrod feed broken material of arranging in pairs or groups, day feeding volume is 1% of neat mouth schizothoracin fry TBW, few feeding is eaten more, every bu is thrown something and fed for 8 times, and after throwing something and feeding, 30min removes remaining bait and excreta at the bottom of pond at every turn;
(4) fry is all tamed after reaching black young head specification, and turn the neat mouth schizothoracin scrod feed of food, every bu is thrown something and fed for 5 times, day feeding volume be 7% of black young head TBW, and adopt flow velocity to be about micro-running water technology of 1.2m/s.
In this cultivating process, do not occur the phenomenon that fry is sick and dead in groups, after cultivating 45d, detect that the survival rate of fry is 96%, balanced growth body weight is more than 5g.
Embodiment 2
By fish meal 40 parts, Soybean Meal 10 parts, dephenolize cotton dregs 5 parts, chicken meal 5 parts, euphausia superba powder 2 parts, Strong flour 10 parts, alphalise starch 10 parts, 3 parts, squid viscera powder, 3 parts, fish oil, 3 parts, soya-bean oil, soybean lecithin 2 parts, vitamin premix 0.75 part, microelement pre-mix material 3 parts, calcium dihydrogen phosphate 2 parts, salt 0.3 part, mould inhibitor 0.05 part, Choline Chloride 0.2 part, vitamin C acetate 0.5 part, vitamin E 0.02 part, high temperature resistant phytase 0.03 part, yeast extract 0.1 part, hepatic cholagogic element 0.05 part mixes, then the particulate material that particle diameter is 1mm is made, obtain here schistostoma abdomen fish scrod feed.Pulverized by feed a part wherein, obtain fodder smashing material, broken material crosses 80 mesh sieves.
Prepare the plankton bait containing wheel animalcule and cladocera of plankton amount >=30000/L, and it is for subsequent use to prepare suitable quantity of water earthworm.
Fry rearing environment:
Water source: water quality is limpid, water temperature is 13-22 DEG C, more than dissolved oxygen 6.8mg/L, and pH value is 7.0-7.5, and flow rate of water flow is adjustable within the scope of 0.4-1.5m/s;
22m is taken up an area in fry rearing pond
2, depth of water 70cm;
Concrete incubation step:
(1) before fry enters pond, by fry rearing pond 1.8g/m every day
3potassium permanganate sterilization 30min, continuous sterilization completed sterilization after 3 days; Put first 3 days of seedling to water filling in pond, water inlet 60 mesh sieve tulles in fry rearing pond filter;
(2) Betagen Solution of rupture of membranes being put down the neat schistostoma abdomen fish and water flower 0.45g/L after trip soaks 10min disinfection, then neat schistostoma abdomen fish and water flower is put into fry rearing pond, open the water inlet in fry rearing pond, adopt micro-running water technology, flow velocity is about 0.5m/s;
(3) the ripe yolk that 200 mesh sieve tulles of throwing something and feeding after neat schistostoma abdomen fish and water flower enters pond filter, 1 yolk of throwing something and feeding every ten thousand tail fry days; Throw something and feed after 7d the plankton bait containing wheel animalcule and cladocera of plankton amount >=30000/L, throw something and feed every day 6 times, throw something and feed 24L at every turn; Mainly to throw something and feed after 20d the water earthworm shredded, day feeding volume is 10% of neat mouth schizothoracin fry TBW, and neat mouth schizothoracin scrod feed broken material of arranging in pairs or groups, day feeding volume is 2% of neat mouth schizothoracin fry TBW, few feeding is eaten more, every bu is thrown something and fed for 7 times, and after throwing something and feeding, 30min removes remaining bait and excreta at the bottom of pond at every turn;
(4) fry is all tamed after reaching black young head specification, and turn the neat mouth schizothoracin scrod feed of food, every bu is thrown something and fed for 4 times, day feeding volume be 8% of black young head TBW, and adopt flow velocity to be about micro-running water technology of 1.5m/s.
In this cultivating process, do not occur the phenomenon that fry is sick and dead in groups, after cultivating 45d, detect that the survival rate of fry is 95%, balanced growth body weight is more than 6g.
Embodiment 3
By fish meal 55 parts, Soybean Meal 10 parts, dephenolize cotton dregs 4 parts, chicken meal 5 parts, euphausia superba powder 2 parts, Strong flour 10 parts, alphalise starch 5 parts, 1 part, squid viscera powder, 2 parts, fish oil, 2 parts, soya-bean oil, soybean lecithin 2 parts, vitamin premix 1 part, microelement pre-mix material 3 parts, calcium dihydrogen phosphate 3 parts, salt 0.1 part, mould inhibitor 0.03 part, Choline Chloride 0.1 part, vitamin C acetate 0.4 part, vitamin E 0.02 part, high temperature resistant phytase 0.01 part, yeast extract 0.05 part, hepatic cholagogic element 0.03 part mixes, make the particulate material that particle diameter is 1mm, obtain here schistostoma abdomen fish scrod feed.Pulverized by feed a part wherein, obtain fodder smashing material, broken material crosses 80 mesh sieves.
Prepare the plankton bait containing wheel animalcule and cladocera of plankton amount >=30000/L, and it is for subsequent use to prepare suitable quantity of water earthworm.
Fry rearing environment:
Water source: water quality is limpid, water temperature is 13-22 DEG C, more than dissolved oxygen 6.8mg/L, and pH value is 7.0-7.5, and flow rate of water flow is adjustable within the scope of 0.4-1.5m/s;
20m is taken up an area in fry rearing pond
2, depth of water 80cm;
Concrete incubation step:
(1) before fry enters pond, by fry rearing pond 2.2g/m every day
3potassium permanganate sterilization 30min, continuous sterilization completed sterilization after 3 days; Put first 3 days of seedling to water filling in pond, water inlet 60 mesh sieve tulles in fry rearing pond filter;
(2) Betagen Solution of rupture of membranes being put down the neat schistostoma abdomen fish and water flower 0.55g/L after trip soaks 6min disinfection, then neat schistostoma abdomen fish and water flower is put into fry rearing pond, open the water inlet in fry rearing pond, adopt micro-running water technology, flow velocity is about 0.6m/s;
(3) the ripe yolk that 200 mesh sieve tulles of throwing something and feeding after neat schistostoma abdomen fish and water flower enters pond filter, 1 yolk of throwing something and feeding every ten thousand tail fry days; Throw something and feed after 7d the plankton bait containing wheel animalcule and cladocera of plankton amount >=30000/L, throw something and feed every day 6 times, throw something and feed 20L at every turn; Mainly to throw something and feed after 20d the water earthworm shredded, day feeding volume is 10% of neat mouth schizothoracin fry TBW, and neat mouth schizothoracin scrod feed broken material of arranging in pairs or groups, day feeding volume is 1% of neat mouth schizothoracin fry TBW, few feeding is eaten more, every bu is thrown something and fed for 7 times, and after throwing something and feeding, 30min removes remaining bait and excreta at the bottom of pond at every turn;
(4) fry is all tamed after reaching black young head specification, and turn the neat mouth schizothoracin scrod feed of food, every bu is thrown something and fed for 4 times, day feeding volume be 8% of black young head TBW, and adopt flow velocity to be about micro-running water technology of 0.8m/s.
In this cultivating process, do not occur the phenomenon that fry is sick and dead in groups, after cultivating 45d, detect that the survival rate of fry is 94%, balanced growth body weight is more than 7g.
Although with reference to multiple explanatory embodiment of the present invention, invention has been described here, but, should be appreciated that, those skilled in the art can design a lot of other amendment and embodiment, these amendments and embodiment will drop within spirit disclosed in the present application and spirit.More particularly, in scope disclosed in the present application, multiple modification and improvement can be carried out to the building block of subject combination layout and/or layout.Except the modification of carrying out building block and/or layout is with except improvement, to those skilled in the art, other purposes also will be obvious.
Claims (6)
1. a neat mouth schizothoracin nursery breeding method, is characterized in that fry rearing environmental requirement as follows:
Water source: water quality is limpid, water temperature is 13-22 DEG C, more than dissolved oxygen 6.8mg/L, and pH value is 7.0-7.5, and flow rate of water flow is adjustable within the scope of 0.4-1.5m/s;
20-23m is taken up an area in fry rearing pond
2, depth of water 50-80cm;
Concrete incubation step is as follows:
(1) before fry enters pond, by fry rearing pond 1.8-2.2g/m every day
3potassium permanganate to sterilize at least 30min, continuous sterilization completed sterilization after at least 3 days; Put first 3 days of seedling to water filling in pond, water inlet 60 mesh sieve tulles in fry rearing pond filter;
(2) Betagen Solution of rupture of membranes being put down the neat schistostoma abdomen fish and water flower 0.45-0.55g/L after trip soaks 5-10min disinfection, then neat schistostoma abdomen fish and water flower is put into fry rearing pond, open the water inlet in fry rearing pond, adopt micro-running water technology, flow velocity is 0.4-0.6m/s;
(3) the ripe yolk that 200 mesh sieve tulles of throwing something and feeding after neat schistostoma abdomen fish and water flower enters pond filter, 1 yolk of throwing something and feeding every ten thousand tail fry days; To throw something and feed after 5-7d the plankton bait containing wheel animalcule and cladocera of plankton amount >=30000/L, day feeding volume be 120L; Mainly to throw something and feed after 20d the water earthworm shredded, day feeding volume be 10% of neat mouth schizothoracin fry TBW, and neat mouth schizothoracin scrod feed broken material of arranging in pairs or groups, day feeding volume be the 1%-2% of neat mouth schizothoracin fry TBW; Every day throws something and feeds several times, and after throwing something and feeding, 30min removes remaining bait and excreta at the bottom of pond at every turn;
(4) fry is all tamed after reaching black young head specification, turn food neat mouth schizothoracin scrod feed, every day throws something and feeds several times, day feeding volume be the 7%-8% of black young head TBW.
2. neat mouth schizothoracin nursery breeding method according to claim 1, is characterized in that fry rearing environmental requirement as follows:
Water source: water quality is limpid, water temperature is 13-22 DEG C, more than dissolved oxygen 6.8mg/L, and pH value is 7.0-7.5, and flow rate of water flow is adjustable within the scope of 0.4-1.5m/s;
21m is taken up an area in fry rearing pond
2, depth of water 50-80cm;
Concrete incubation step is as follows:
(1) before fry enters pond, by fry rearing pond 2g/m every day
3potassium permanganate to sterilize at least 30min, continuous sterilization completed sterilization after at least 3 days; Put first 3 days of seedling to water filling in pond, water inlet 60 mesh sieve tulles in fry rearing pond filter;
(2) Betagen Solution of rupture of membranes being put down the neat schistostoma abdomen fish and water flower 0.5g/L after trip soaks 5min disinfection, then neat schistostoma abdomen fish and water flower is put into fry rearing pond, open the water inlet in fry rearing pond, adopt micro-running water technology, flow velocity is 0.5m/s;
(3) the ripe yolk that 200 mesh sieve tulles of throwing something and feeding after neat schistostoma abdomen fish and water flower enters pond filter, 1 yolk of throwing something and feeding every ten thousand tail fry days; To throw something and feed after 7d the plankton bait containing wheel animalcule and cladocera of plankton amount >=30000/L, day feeding volume be 120L; Mainly to throw something and feed after 20d the water earthworm shredded, day feeding volume be 10% of neat mouth schizothoracin fry TBW, and neat mouth schizothoracin scrod feed broken material of arranging in pairs or groups, day feeding volume be 1% of neat mouth schizothoracin fry TBW; Every day throws something and feeds several times, and after throwing something and feeding, 30min removes remaining bait and excreta at the bottom of pond at every turn;
(4) fry is all tamed after reaching black young head specification, turn food neat mouth schizothoracin scrod feed, every day throws something and feeds several times, day feeding volume be 8% of black young head TBW.
3. neat mouth schizothoracin nursery breeding method according to claim 1 and 2, is characterized in that the formula of described neat mouth schizothoracin scrod feed parts by weights meter is as follows:
Fish meal 30-55 part, Soybean Meal 10-20 part, dephenolize cotton dregs 4-10 part, chicken meal 5-10 part, euphausia superba powder 2-4 part, Strong flour 10-18 part, alphalise starch 5-15 part, squid viscera powder 1-3 part, fish oil 2-6 part, soya-bean oil 2-6 part, soybean lecithin 2-5 part, vitamin premix 0.3-1 part, microelement pre-mix material 1-3 part, calcium dihydrogen phosphate 1-3 part, salt 0.1-0.3 part, mould inhibitor 0.03-0.05 part, Choline Chloride 0.1-0.25 part, vitamin C acetate 0.4-0.8 part, vitamin E 0.02-0.05 part, high temperature resistant phytase 0.01-0.05 part, yeast extract 0.05-0.1 part, hepatic cholagogic element 0.03-0.05 part.
4. neat mouth schizothoracin nursery breeding method according to claim 3, is characterized in that the formula of described neat mouth schizothoracin scrod feed parts by weights meter is as follows:
Fish meal 35 parts, Soybean Meal 12 parts, dephenolize cotton dregs 5 parts, chicken meal 7 parts, euphausia superba powder 3 parts, Strong flour 10 parts, alphalise starch 10 parts, 3 parts, squid viscera powder, 3 parts, fish oil, 3 parts, soya-bean oil, soybean lecithin 3 parts, vitamin premix 0.75 part, microelement pre-mix material 2 parts, calcium dihydrogen phosphate 2 parts, salt 0.3 part, mould inhibitor 0.05 part, Choline Chloride 0.2 part, vitamin C acetate 0.5 part, vitamin E 0.02 part, high temperature resistant phytase 0.03 part, yeast extract 0.1 part, hepatic cholagogic element 0.05 part.
5. neat mouth schizothoracin nursery breeding method according to claim 1 and 2, is characterized in that fry rearing pond adopts the flow velocity of micro-running water technology to be 0.8-1.5m/s in step (4).
6. neat mouth schizothoracin nursery breeding method according to claim 1 and 2, it is characterized in that step (3) described every day throws something and feeds several times and refer to that every bu is thrown something and fed for 6-8 time, throw something and feed several times step (4) described every day and refer to that every bu is thrown something and fed for 4-5 time.
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