CN105230545A - Breeding method for loach through net cages - Google Patents
Breeding method for loach through net cages Download PDFInfo
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- CN105230545A CN105230545A CN201510749644.5A CN201510749644A CN105230545A CN 105230545 A CN105230545 A CN 105230545A CN 201510749644 A CN201510749644 A CN 201510749644A CN 105230545 A CN105230545 A CN 105230545A
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- loach
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- 241000252185 Cobitidae Species 0.000 title claims abstract description 126
- 238000009395 breeding Methods 0.000 title abstract description 8
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 78
- 244000207740 Lemna minor Species 0.000 claims abstract description 19
- 235000006439 Lemna minor Nutrition 0.000 claims abstract description 19
- 235000001855 Portulaca oleracea Nutrition 0.000 claims abstract description 19
- FAPWRFPIFSIZLT-UHFFFAOYSA-M Sodium chloride Chemical compound [Na+].[Cl-] FAPWRFPIFSIZLT-UHFFFAOYSA-M 0.000 claims abstract description 6
- 241001632576 Hyacinthus Species 0.000 claims description 18
- 238000000034 method Methods 0.000 claims description 18
- 229910000831 Steel Inorganic materials 0.000 claims description 13
- 239000010959 steel Substances 0.000 claims description 13
- 230000037396 body weight Effects 0.000 claims description 12
- 241000196324 Embryophyta Species 0.000 claims description 11
- ARUVKPQLZAKDPS-UHFFFAOYSA-L copper(II) sulfate Chemical compound [Cu+2].[O-][S+2]([O-])([O-])[O-] ARUVKPQLZAKDPS-UHFFFAOYSA-L 0.000 claims description 11
- 235000019733 Fish meal Nutrition 0.000 claims description 10
- 241000361919 Metaphire sieboldi Species 0.000 claims description 10
- 241001465754 Metazoa Species 0.000 claims description 10
- 239000004467 fishmeal Substances 0.000 claims description 10
- 230000002265 prevention Effects 0.000 claims description 10
- 235000013311 vegetables Nutrition 0.000 claims description 10
- ODINCKMPIJJUCX-UHFFFAOYSA-N calcium oxide Inorganic materials [Ca]=O ODINCKMPIJJUCX-UHFFFAOYSA-N 0.000 claims description 9
- 240000007594 Oryza sativa Species 0.000 claims description 7
- 235000007164 Oryza sativa Nutrition 0.000 claims description 7
- 239000000292 calcium oxide Substances 0.000 claims description 7
- 235000009566 rice Nutrition 0.000 claims description 7
- 241000251468 Actinopterygii Species 0.000 claims description 6
- 241000894006 Bacteria Species 0.000 claims description 6
- 230000000243 photosynthetic effect Effects 0.000 claims description 6
- 239000002689 soil Substances 0.000 claims description 6
- 235000017060 Arachis glabrata Nutrition 0.000 claims description 5
- 244000105624 Arachis hypogaea Species 0.000 claims description 5
- 235000010777 Arachis hypogaea Nutrition 0.000 claims description 5
- 235000018262 Arachis monticola Nutrition 0.000 claims description 5
- 241000238557 Decapoda Species 0.000 claims description 5
- 244000068988 Glycine max Species 0.000 claims description 5
- 235000010469 Glycine max Nutrition 0.000 claims description 5
- 244000046052 Phaseolus vulgaris Species 0.000 claims description 5
- 235000010627 Phaseolus vulgaris Nutrition 0.000 claims description 5
- 238000005276 aerator Methods 0.000 claims description 5
- 235000012970 cakes Nutrition 0.000 claims description 5
- 230000002354 daily effect Effects 0.000 claims description 5
- 201000010099 disease Diseases 0.000 claims description 5
- 208000037265 diseases, disorders, signs and symptoms Diseases 0.000 claims description 5
- 230000003203 everyday effect Effects 0.000 claims description 5
- 238000007689 inspection Methods 0.000 claims description 5
- 239000007788 liquid Substances 0.000 claims description 5
- 239000000203 mixture Substances 0.000 claims description 5
- 238000006213 oxygenation reaction Methods 0.000 claims description 5
- 235000020232 peanut Nutrition 0.000 claims description 5
- 230000000630 rising effect Effects 0.000 claims description 5
- 235000013343 vitamin Nutrition 0.000 claims description 5
- 229940088594 vitamin Drugs 0.000 claims description 5
- 229930003231 vitamin Natural products 0.000 claims description 5
- 239000011782 vitamin Substances 0.000 claims description 5
- 150000003722 vitamin derivatives Chemical class 0.000 claims description 5
- 238000004659 sterilization and disinfection Methods 0.000 claims description 3
- 238000003780 insertion Methods 0.000 claims description 2
- 230000037431 insertion Effects 0.000 claims description 2
- 230000001954 sterilising effect Effects 0.000 claims description 2
- 230000004083 survival effect Effects 0.000 abstract description 4
- 230000001488 breeding effect Effects 0.000 abstract description 3
- 239000004744 fabric Substances 0.000 abstract description 3
- 244000045947 parasite Species 0.000 abstract description 2
- 240000003826 Eichhornia crassipes Species 0.000 abstract 1
- 230000009286 beneficial effect Effects 0.000 description 6
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 2
- 208000030852 Parasitic disease Diseases 0.000 description 2
- 241001500087 Trichodina Species 0.000 description 2
- 235000012255 calcium oxide Nutrition 0.000 description 2
- 230000035800 maturation Effects 0.000 description 2
- CPKVUHPKYQGHMW-UHFFFAOYSA-N 1-ethenylpyrrolidin-2-one;molecular iodine Chemical compound II.C=CN1CCCC1=O CPKVUHPKYQGHMW-UHFFFAOYSA-N 0.000 description 1
- 235000019750 Crude protein Nutrition 0.000 description 1
- 241000252206 Cypriniformes Species 0.000 description 1
- 206010017533 Fungal infection Diseases 0.000 description 1
- 241001523601 Gyrodactylus Species 0.000 description 1
- 208000031888 Mycoses Diseases 0.000 description 1
- IOVCWXUNBOPUCH-UHFFFAOYSA-M Nitrite anion Chemical compound [O-]N=O IOVCWXUNBOPUCH-UHFFFAOYSA-M 0.000 description 1
- 229920000153 Povidone-iodine Polymers 0.000 description 1
- UCKMPCXJQFINFW-UHFFFAOYSA-N Sulphide Chemical compound [S-2] UCKMPCXJQFINFW-UHFFFAOYSA-N 0.000 description 1
- 238000009360 aquaculture Methods 0.000 description 1
- 244000144974 aquaculture Species 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 238000000354 decomposition reaction Methods 0.000 description 1
- 230000006866 deterioration Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000003337 fertilizer Substances 0.000 description 1
- 239000000796 flavoring agent Substances 0.000 description 1
- 235000019634 flavors Nutrition 0.000 description 1
- 230000037406 food intake Effects 0.000 description 1
- 235000012631 food intake Nutrition 0.000 description 1
- 239000013505 freshwater Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 229910052757 nitrogen Inorganic materials 0.000 description 1
- 235000015097 nutrients Nutrition 0.000 description 1
- 239000005416 organic matter Substances 0.000 description 1
- 244000052769 pathogen Species 0.000 description 1
- 229960001621 povidone-iodine Drugs 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 238000011002 quantification Methods 0.000 description 1
- 208000017520 skin disease Diseases 0.000 description 1
- 239000000126 substance 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
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Environmental Sciences (AREA)
- Marine Sciences & Fisheries (AREA)
- Zoology (AREA)
- Animal Husbandry (AREA)
- Biodiversity & Conservation Biology (AREA)
- Cultivation Of Plants (AREA)
Abstract
The invention discloses a breeding method for loach through net cages. The breeding method includes the steps that the net cages are manufactured, wherein rectangular cage bodies are made of net cloth; the net cages are placed in a pond in lines and rows, the adjacent net cages in each line are fixed through timber piles, and the interval between two adjacent lines ranges from 40 cm to 80 cm; water hyacinth and water duckweed are planted in each net cage, loach fry are disinfected for 5-10 minutes through a 1.5%-3.5% saline solution, during first three months after the loach fry are placed, bait is fed, since the fourth month after the loach fry are placed, mixed feed is fed, the mixed feed is fed a time at 8-9 o'clock every morning and 5-6 o'clock every afternoon respectively, and the quantity of the mixed feed fed each time is 1%-5% of the weight of the loach fry in the net cages. The breeding method has the advantages that large-scale loach breeding is achieved, the loach can be easily caught, the survival rate and resistance of the loach are increased, and the probability that the loach is infected by parasites is reduced.
Description
Technical field
The present invention relates to and belongs to cultivation field.More particularly, the present invention relates to a kind of cultural method of loach net cage.
Background technology
Loach is commonly called as loach fish, belongs to Cypriniformes, Cobitidae, loach belongs to, and is a kind of Small Freshwater Fishes being extensively distributed in China and country in Southeast Asia.Loach fine and tender taste, delicious flavour, be rich in multivitamin, there is certain medicinal efficacy, the dark concern by consumer and welcome.At present, loach at home demand reaches 30-40 ten thousand tons/year, and price is at 20-30 unit/jin.Overseas market is in great demand, according to incompletely statistics, only Japan and Korea S to the annual requirement of loach at about 300,000 tons, outlet Japan, Korea S's average price reach more than 26-28 unit/jin, the western countries such as European Union also improve rapidly the understanding of China loach, therefore, breeding loach has wide market and profit margin.
The mainly pond culture of current loach breeding mode, aquaculture model is single, is unfavorable for catching, and raiser can improve scale loach breeding method in the urgent need to there being one.
Summary of the invention
An object of the present invention is to solve at least the problems referred to above, and the advantage will illustrated at least is below provided.
A further object of the invention is to provide a kind of method utilizing cage culture loach, achieves large-scale cultivation loach, is beneficial to the seizure of loach, improves survival rate and the resistance of loach, reduces by the probability of parasitic infection.
In order to realize, according to these objects of the present invention and other advantage, providing a kind of cultural method of loach net cage, comprising:
The making of net cage: be made into the rectangular box that length is respectively 3 meters * 1.5 meters * 1 meter with 20 orders or 9 order screen cloths, steel skeleton is fixed on every bar limit of described rectangular box, and fix steel wire rope on the diagonal of described rectangular box each;
The input of net cage: the selection depth of water is that some described net cages are thrown in row and the form of row in the pond of 1-1.2 rice, wherein, fixes between often adjacent in row net cage with timber, and the degree of depth of described timber insertion pond bottom mud is 20-30cm; Spacing between adjacent rows is 40-80cm;
The plantation of plant: plant weter hyacinth and water duckweed in each described net cage, ensures that plantation weter hyacinth and water duckweed account for 1/3 of this net cage cross-sectional area;
The input of loach kind: loach kind mass fraction is the saline solution sterilization 5 ~ 10 minutes of 1.5 ~ 3.5%, drops into loach kind, press 80-100 tail/m after the described weter hyacinth of plantation and one week of water duckweed in the net cage of 20 order screen cloths making
2throw in the loach kind of 3-5cm, in the net cage that 9 order screen cloths make, press 60-80 tail/m
2throw in the loach kind of 5-7cm;
To throw something and feed management: the first trimester after loach kind drops into, bait of throwing something and feeding, described bait by water earthworm and loach special feed in mass ratio 3-8:1 mix, described loach special feed comprises soya-bean cake, vitamin and fish meal; Rising for four month after loach kind drops into, to throw something and feed mixed feed, described mixed feed is that the feed of animal origin of 1:1-3 and vegetable feed are made by mass ratio, and described feed of animal origin comprises the flesh of fish, shrimp, fish meal and earthworm, and described vegetable feed comprises peanut press pulp, rice bran, bean dregs and grouts;
The input standard of described bait and described mixed feed is: every morning 8-9 point and afternoon 5-6 point throw respectively
Feed once, the amount of at every turn throwing something and feeding is the 1%-5% of loach kind body weight in this net cage.
Preferably, also comprise water quality management, at spring, fall and winter, the water monthly in replacing pond 2 times, each quantity of exchanged water is the 1/3-1/2 of the pond water yield; In summer, the water monthly in replacing pond 3-4 time, each quantity of exchanged water is the 1/3-1/2 of the pond water yield; The middle of the month of every month adds 0.3kg/m in pond
2quicklime, in pond, add the photosynthetic bacteria liquid that concentration is 2-3cfu/ml the end of month of every month.
Preferably, in summer and spring, the feeding volume of described bait and described mixed feed is the 3%-5% of loach kind body weight in this net cage; In the fall and winter, the feeding volume of described bait and described mixed feed is the 1%-2% of loach kind body weight in this net cage.
Preferably, also comprise: build bird prevention net in described pond surrounding and top, described pond is covered.
Preferably, also comprise the control of disease, be monthly that the Betagen Solution of 10% is poured in pond by mass fraction, 300ml is poured in every mu of pond into; The bimester of per by copper sulphate dissolves in pond, the consumption of each described copper sulphate is 3-6g/m
3.
Preferably, also comprise daily management, every day early, middle and late each inspection pond once, raise the nose above water to breathe phenomenon if find and open aerator immediately and carry out oxygenation; A net cage is scrubbed every other month with banister brush.
Preferably, the alkalescent soil evenly adding mud quality 1/4 for four month in described pond bottom mud after loach is dropped into.
Preferably, the diameter of described timber is 20-35cm, is highly 1.3-1.6m.
The present invention at least comprises following beneficial effect:
The first, respectively adopt 20 orders and 9 object screen cloths to make net cage and divide out cultivation by loach kind by 3-5cm and 5-7cm, ensure that the uniform growth of loach, avoid size loach to raise together with food-intake in a net cage and have any different, not easily reasonable distribution, reduces the quality of life of little loach; Simultaneously after cultivation maturation without the need to classification, the loach of different building shape is attributed to different net cages, eliminates the manpower of the classification in later stage;
The second, screen cloth is compared to general steel cage, material is more soft, be more conducive to the growth of loach, by steel skeleton and steel wire rope screen cloth shaped and increase the weight of, utilizing timber to fix often going adjacent net cage simultaneously, all can increase the weight of net cage, prevent buoyancy from lifting to the water surface by net cage, timber also has the fixing effect be fixed together by multiple net cage, and the casing that only need lift often row two ends when being beneficial to later stage receipts case just can lift all net cages of this row, saves the time of getting net cage one by one;
Three, in each net cage, weter hyacinth and water duckweed is planted, the fertilized egg being beneficial to loach is adhered on two Plants, weter hyacinth and water duckweed energy shield portions sunlight, be beneficial to growing of loach, also can be used as the bait of loach simultaneously, be rich in crude protein and multivitamin, improve the resistance of loach;
Four, the plantation of weter hyacinth and water duckweed is beneficial to planktonic growth, also can be used as the feed of loach, reduces feed cost;
Five, throw something and feed the amount of feed according to season and weight sorting, both ensure that the complete nutrients matter needed for loach, simultaneously also can accurate quantification;
Six, throw in quicklime in water quality management, make water quality be alkalescence, be conducive to the harmful substance such as sulphide, nitrite in the photosynthetic bacteria decomposition water of later stage input, can also decomposing organic matter and fixed nitrogen, improve the clarity of water, increase the fertilizer in water, suppress the Growth and reproduction of harmful levels of pathogens;
Seven, in pond, surrounding builds bird prevention net, prevents birds from preying on loach kind, improves the survival rate of loach kind;
Eight, after four month, loach kind has certain resistance, and each monthly meeting in early stage adds quicklime in pond, makes loach tame in alkaline environment, adds alkalescent soil in mud, be conducive to the smoothness improving loach skin, reduce loach and suffer from dermopathic probability;
Nine, change water at every turn, ensure the old water having 1/2-2/3 in pond, improve the fitness of loach, also can not cause water quality deterioration simultaneously, the growth of loach is had an impact;
Ten, select povidone iodine to carry out disinfection to loach body surface, prevention skin disease and fungal infection, select copper sulphate to prevent and treat Trichodina.
Part is embodied by explanation below by other advantage of the present invention, target and feature, part also will by research and practice of the present invention by those skilled in the art is understood.
Embodiment
Below in conjunction with embodiment, the present invention is described in further detail, can implement according to this with reference to specification word to make those skilled in the art.
Embodiment 1
A cultural method for loach net cage, comprising:
The making of net cage: be made into the rectangular box that length is respectively 3 meters * 1.5 meters * 1 meter with 20 orders or 9 order screen cloths, steel skeleton is fixed on every bar limit of described rectangular box, and fix steel wire rope on the diagonal of described rectangular box each.
The input of net cage: the selection depth of water is that some described net cages are thrown in row and the form of row in the pond of 1 meter, wherein, fix with timber between often adjacent in row net cage, the diameter of described timber is 20cm, be highly 1.3m, and the degree of depth that described timber inserts pond bottom mud is 20cm; Spacing between adjacent rows is 40cm.
The plantation of plant: plant weter hyacinth and water duckweed in each described net cage, ensures that plantation weter hyacinth and water duckweed account for 1/3 of this net cage cross-sectional area.
The input of loach kind: loach kind mass fraction be 1.5% saline solution sterilize 5 minutes, after the described weter hyacinth of plantation and one week of water duckweed, drop into loach kind, in the net cage that 20 order screen cloths make, press 80 tails/m
2throw in the loach kind of 3cm, by 60 tails/m in the net cage that 9 order screen cloths make
2throw in the loach kind of 5cm.
To throw something and feed management: the first trimester after loach kind drops into, bait of throwing something and feeding, described bait by water earthworm and artifical compound feed powder in mass ratio 3:1 mix, described loach special feed comprises soya-bean cake, vitamin and fish meal; Rising for four month after loach kind drops into, to throw something and feed mixed feed, described mixed feed is that the feed of animal origin of 1:1 and vegetable feed are made by mass ratio, and described feed of animal origin comprises the flesh of fish, shrimp, fish meal and earthworm, and described vegetable feed comprises peanut press pulp, rice bran, bean dregs and grouts.
The input standard of described bait and described mixed feed is: every morning 8 and at 5 in afternoon throw something and feed once respectively, and in summer and spring, the feeding volume of described bait and described mixed feed is 3% of loach kind body weight in this net cage; In the fall and winter, the feeding volume of described bait and described mixed feed is 1% of loach kind body weight in this net cage.
Water quality management: at spring, fall and winter, the water monthly in replacing pond 2 times, each quantity of exchanged water is 1/3 of the pond water yield; In summer, the water monthly in replacing pond 3 times, each quantity of exchanged water is 1/3 of the pond water yield; The middle of the month of every month adds 0.3kg/m in pond
2quicklime, in pond, add the photosynthetic bacteria liquid that concentration is 2cfu/ml the end of month of every month.
Building of bird prevention net: build bird prevention net in described pond surrounding and top, covers described pond.
The control of disease: by mass fraction be monthly 10% Betagen Solution pour in pond, 300ml is poured in every mu of pond into; The bimester of per by copper sulphate dissolves in pond, the consumption of each described copper sulphate is 3g/m
3.
Daily management: every day early, middle and late each inspection pond once, raise the nose above water to breathe phenomenon if find and open aerator immediately and carry out oxygenation; A net cage is scrubbed every other month with banister brush.
In the present embodiment, the alkalescent soil evenly adding mud quality 1/4 for four month in described pond bottom mud after loach input.
Embodiment 2
A cultural method for loach net cage, comprising:
The making of net cage: be made into the rectangular box that length is respectively 3 meters * 1.5 meters * 1 meter with 20 orders or 9 order screen cloths, steel skeleton is fixed on every bar limit of described rectangular box, and fix steel wire rope on the diagonal of described rectangular box each.
The input of net cage: the selection depth of water is that some described net cages are thrown in row and the form of row in the pond of 1.2 meters, wherein, fix with timber between often adjacent in row net cage, the diameter of described timber is 35cm, be highly 1.6m, and the degree of depth that described timber inserts pond bottom mud is 30cm; Spacing between adjacent rows is 80cm.
The plantation of plant: plant weter hyacinth and water duckweed in each described net cage, ensures that plantation weter hyacinth and water duckweed account for 1/3 of this net cage cross-sectional area.
The input of loach kind: loach kind mass fraction be 3.5% saline solution sterilize 10 minutes, after the described weter hyacinth of plantation and one week of water duckweed, drop into loach kind, in the net cage that 20 order screen cloths make, press 100 tails/m
2throw in the loach kind of 5cm, by 80 tails/m in the net cage that 9 order screen cloths make
2throw in the loach kind of 7cm.
To throw something and feed management: the first trimester after loach kind drops into, bait of throwing something and feeding, described bait by water earthworm and loach special feed in mass ratio 5:1 mix, described loach special feed comprises soya-bean cake, vitamin and fish meal; Rising for four month after loach kind drops into, to throw something and feed mixed feed, described mixed feed is that the feed of animal origin of 1:3 and vegetable feed are made by mass ratio, and described feed of animal origin comprises the flesh of fish, shrimp, fish meal and earthworm, and described vegetable feed comprises peanut press pulp, rice bran, bean dregs and grouts.
The input standard of described bait and described mixed feed is: every morning 9 and 6 pm throw something and feed once respectively, and in summer and spring, the feeding volume of described bait and described mixed feed is 5% of loach kind body weight in this net cage; In the fall and winter, the feeding volume of described bait and described mixed feed is 2% of loach kind body weight in this net cage.
Water quality management: at spring, fall and winter, the water monthly in replacing pond 2 times, each quantity of exchanged water is 1/2 of the pond water yield; In summer, the water monthly in replacing pond 4 times, each quantity of exchanged water is 1/2 of the pond water yield; The middle of the month of every month adds 0.3kg/m in pond
2quicklime, in pond, add the photosynthetic bacteria liquid that concentration is 3cfu/ml the end of month of every month.
Building of bird prevention net: build bird prevention net in described pond surrounding and top, covers described pond.
The control of disease: by mass fraction be monthly 10% Betagen Solution pour in pond, 300ml is poured in every mu of pond into; The bimester of per by copper sulphate dissolves in pond, the consumption of each described copper sulphate is 6g/m
3.
Daily management: every day early, middle and late each inspection pond once, raise the nose above water to breathe phenomenon if find and open aerator immediately and carry out oxygenation; A net cage is scrubbed every other month with banister brush.
In the present embodiment, the alkalescent soil evenly adding mud quality 1/4 for four month in described pond bottom mud after loach input.
Embodiment 3
A cultural method for loach net cage, comprising:
The making of net cage: be made into the rectangular box that length is respectively 3 meters * 1.5 meters * 1 meter with 20 orders or 9 order screen cloths, steel skeleton is fixed on every bar limit of described rectangular box, and fix steel wire rope on the diagonal of described rectangular box each.
The input of net cage: the selection depth of water is that some described net cages are thrown in row and the form of row in the pond of 1.1 meters, wherein, fix with timber between often adjacent in row net cage, the diameter of described timber is 25cm, be highly 1.4m, and the degree of depth that described timber inserts pond bottom mud is 25cm; Spacing between adjacent rows is 46cm.
The plantation of plant: plant weter hyacinth and water duckweed in each described net cage, ensures that plantation weter hyacinth and water duckweed account for 1/3 of this net cage cross-sectional area.
The input of loach kind: loach kind mass fraction be 2.7% saline solution sterilize 6 minutes, after the described weter hyacinth of plantation and one week of water duckweed, drop into loach kind, in the net cage that 20 order screen cloths make, press 90 tails/m
2throw in the loach kind of 4cm, by 77 tails/m in the net cage that 9 order screen cloths make
2throw in the loach kind of 6cm.
To throw something and feed management: the first trimester after loach kind drops into, bait of throwing something and feeding, described bait by water earthworm and loach special feed in mass ratio 8:1 mix, described loach special feed comprises soya-bean cake, vitamin and fish meal; Rising for four month after loach kind drops into, to throw something and feed mixed feed, described mixed feed is that the feed of animal origin of 1:2 and vegetable feed are made by mass ratio, and described feed of animal origin comprises the flesh of fish, shrimp, fish meal and earthworm, and described vegetable feed comprises peanut press pulp, rice bran, bean dregs and grouts.
The input standard of described bait and described mixed feed is: every morning 8: 30 and afternoon 5: 30 throw something and feed once respectively, and in summer and spring, the feeding volume of described bait and described mixed feed is 4% of loach kind body weight in this net cage; In the fall and winter, the feeding volume of described bait and described mixed feed is 1% of loach kind body weight in this net cage.
Water quality management: at spring, fall and winter, the water monthly in replacing pond 2 times, each quantity of exchanged water is 1/2 of the pond water yield; In summer, the water monthly in replacing pond 3 times, each quantity of exchanged water is 1/2 of the pond water yield; The middle of the month of every month adds 0.3kg/m in pond
2quicklime, in pond, add the photosynthetic bacteria liquid that concentration is 2cfu/ml the end of month of every month.
Building of bird prevention net: build bird prevention net in described pond surrounding and top, covers described pond.
The control of disease: by mass fraction be monthly 10% Betagen Solution pour in pond, 300ml is poured in every mu of pond into; The bimester of per by copper sulphate dissolves in pond, the consumption of each described copper sulphate is 5g/m
3.
Daily management: every day early, middle and late each inspection pond once, raise the nose above water to breathe phenomenon if find and open aerator immediately and carry out oxygenation; A net cage is scrubbed every other month with banister brush.
In the present embodiment, the alkalescent soil evenly adding mud quality 1/4 for four month in described pond bottom mud after loach input.
The method of embodiment 1/2/3 is utilized to cultivate 800 loach kinds respectively, control group utilizes the pond method of raising scattered to cultivate 800 loach kinds, the method of raising scattered is that 800 loach kinds are put into pond, utilize and catch the loach that maturation fished for by net, cultivate 12 months altogether, investigate the survival rate of loach kind, bubble illness and parasitic infection rate, parasite paper examines Gyrodactylus and Trichodina.
Table 1
Although embodiment of the present invention are open as above, but it is not restricted to listed in specification and embodiment utilization, it can be applied to various applicable the field of the invention completely, for those skilled in the art, can easily realize other amendment, therefore do not deviating under the universal that claim and equivalency range limit, the present invention is not limited to specific details and illustrates here and the embodiment described.
Claims (8)
1. a cultural method for loach net cage, is characterized in that, comprising:
The making of net cage: be made into the rectangular box that length is respectively 3 meters * 1.5 meters * 1 meter with 20 orders or 9 order screen cloths, steel skeleton is fixed on every bar limit of described rectangular box, and fix steel wire rope on the diagonal of described rectangular box each;
The input of net cage: the selection depth of water is that some described net cages are thrown in row and the form of row in the pond of 1-1.2 rice, wherein, fixes between often adjacent in row net cage with timber, and the degree of depth of described timber insertion pond bottom mud is 20-30cm; Spacing between adjacent rows is 40-80cm;
The plantation of plant: plant weter hyacinth and water duckweed in each described net cage, ensures that plantation weter hyacinth and water duckweed account for 1/3 of this net cage cross-sectional area;
The input of loach kind: loach kind mass fraction is the saline solution sterilization 5 ~ 10 minutes of 1.5 ~ 3.5%, drops into loach kind, press 80-100 tail/m after the described weter hyacinth of plantation and one week of water duckweed in the net cage of 20 order screen cloths making
2throw in the loach kind of 3-5cm, in the net cage that 9 order screen cloths make, press 60-80 tail/m
2throw in the loach kind of 5-7cm;
To throw something and feed management: the first trimester after loach kind drops into, bait of throwing something and feeding, described bait by water earthworm and loach special feed in mass ratio 3-8:1 mix, described loach special feed comprises soya-bean cake, vitamin and fish meal; Rising for four month after loach kind drops into, to throw something and feed mixed feed, described mixed feed is that the feed of animal origin of 1:1-3 and vegetable feed are made by mass ratio, and described feed of animal origin comprises the flesh of fish, shrimp, fish meal and earthworm, and described vegetable feed comprises peanut press pulp, rice bran, bean dregs and grouts;
The input standard of described bait and described mixed feed is: every morning 8-9 point and afternoon 5-6 point throw something and feed respectively once, the amount of at every turn throwing something and feeding is the 1%-5% of loach kind body weight in this net cage.
2. the cultural method of loach net cage as claimed in claim 1, is characterized in that, also comprise water quality management, at spring, fall and winter, and the water monthly in replacing pond 2 times, each quantity of exchanged water is the 1/3-1/2 of the pond water yield; In summer, the water monthly in replacing pond 3-4 time, each quantity of exchanged water is the 1/3-1/2 of the pond water yield; The middle of the month of every month adds 0.3kg/m in pond
2quicklime, in pond, add the photosynthetic bacteria liquid that concentration is 2-3cfu/ml the end of month of every month.
3. the cultural method of loach net cage as claimed in claim 1, it is characterized in that, in summer and spring, the feeding volume of described bait and described mixed feed is the 3%-5% of loach kind body weight in this net cage; In the fall and winter, the feeding volume of described bait and described mixed feed is the 1%-2% of loach kind body weight in this net cage.
4. the cultural method of loach net cage as claimed in claim 1, is characterized in that, also comprise: build bird prevention net in described pond surrounding and top, covered in described pond.
5. the cultural method of loach net cage as claimed in claim 1, it is characterized in that, also comprise the control of disease, be monthly that the Betagen Solution of 10% is poured in pond by mass fraction, 300ml is poured in every mu of pond into; The bimester of per by copper sulphate dissolves in pond, the consumption of each described copper sulphate is 3-6g/m
3.
6. the cultural method of loach net cage as claimed in claim 1, is characterized in that, also comprise daily management, every day early, middle and late each inspection pond once, raise the nose above water to breathe phenomenon if find and open aerator immediately and carry out oxygenation; A net cage is scrubbed every other month with banister brush.
7. the cultural method of loach net cage as claimed in claim 1, is characterized in that, the alkalescent soil evenly adding mud quality 1/4 for four month in described pond bottom mud after loach is dropped into.
8. the cultural method of loach net cage as claimed in claim 7, it is characterized in that, the diameter of described timber is 20-35cm, is highly 1.3-1.6m.
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Cited By (1)
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| CN107960349A (en) * | 2017-11-02 | 2018-04-27 | 桂林市味美园餐饮管理有限公司 | A kind of cultural method of loach |
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