DK163475B - DEVICE FOR ANIMAL ENVIRONMENT / BREEDING IN ANIMAL ENVIRONMENT - Google Patents
DEVICE FOR ANIMAL ENVIRONMENT / BREEDING IN ANIMAL ENVIRONMENT Download PDFInfo
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- DK163475B DK163475B DK324785A DK324785A DK163475B DK 163475 B DK163475 B DK 163475B DK 324785 A DK324785 A DK 324785A DK 324785 A DK324785 A DK 324785A DK 163475 B DK163475 B DK 163475B
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- Prior art keywords
- breeding
- larvae
- vessel
- vessels
- fluid
- Prior art date
Links
- 241001465754 Metazoa Species 0.000 title claims abstract description 11
- 238000009395 breeding Methods 0.000 claims abstract description 64
- 230000001488 breeding effect Effects 0.000 claims abstract description 62
- 238000011161 development Methods 0.000 claims abstract description 11
- 244000005706 microflora Species 0.000 claims abstract description 7
- 244000045947 parasite Species 0.000 claims abstract description 3
- 235000013305 food Nutrition 0.000 claims description 20
- 238000004140 cleaning Methods 0.000 claims description 7
- 239000012530 fluid Substances 0.000 claims description 6
- 230000001105 regulatory effect Effects 0.000 claims description 6
- 238000009826 distribution Methods 0.000 claims description 5
- 238000001035 drying Methods 0.000 claims description 2
- 230000001418 larval effect Effects 0.000 claims description 2
- 230000001276 controlling effect Effects 0.000 claims 1
- 239000007788 liquid Substances 0.000 claims 1
- 238000000034 method Methods 0.000 abstract description 5
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 26
- 241000251468 Actinopterygii Species 0.000 description 11
- 235000019688 fish Nutrition 0.000 description 11
- 244000144987 brood Species 0.000 description 9
- 230000018109 developmental process Effects 0.000 description 8
- 235000005911 diet Nutrition 0.000 description 8
- 230000037213 diet Effects 0.000 description 8
- 239000000203 mixture Substances 0.000 description 5
- 241000894007 species Species 0.000 description 5
- 241000252233 Cyprinus carpio Species 0.000 description 4
- 238000009434 installation Methods 0.000 description 4
- OKKJLVBELUTLKV-UHFFFAOYSA-N Methanol Chemical compound OC OKKJLVBELUTLKV-UHFFFAOYSA-N 0.000 description 3
- 240000004808 Saccharomyces cerevisiae Species 0.000 description 3
- 241000277331 Salmonidae Species 0.000 description 3
- 238000011109 contamination Methods 0.000 description 3
- 208000015181 infectious disease Diseases 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 239000002245 particle Substances 0.000 description 3
- 241001519451 Abramis brama Species 0.000 description 2
- 241000972773 Aulopiformes Species 0.000 description 2
- 241000238631 Hexapoda Species 0.000 description 2
- 239000004721 Polyphenylene oxide Substances 0.000 description 2
- 235000021336 beef liver Nutrition 0.000 description 2
- 238000006073 displacement reaction Methods 0.000 description 2
- 238000002474 experimental method Methods 0.000 description 2
- 238000001914 filtration Methods 0.000 description 2
- 239000006260 foam Substances 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- 229910052500 inorganic mineral Inorganic materials 0.000 description 2
- 210000004185 liver Anatomy 0.000 description 2
- 239000011707 mineral Substances 0.000 description 2
- 235000015097 nutrients Nutrition 0.000 description 2
- 230000000737 periodic effect Effects 0.000 description 2
- 229920000728 polyester Polymers 0.000 description 2
- 229920000570 polyether Polymers 0.000 description 2
- 239000000843 powder Substances 0.000 description 2
- 230000000384 rearing effect Effects 0.000 description 2
- 235000019515 salmon Nutrition 0.000 description 2
- 235000014102 seafood Nutrition 0.000 description 2
- 238000000926 separation method Methods 0.000 description 2
- 235000015170 shellfish Nutrition 0.000 description 2
- 238000012546 transfer Methods 0.000 description 2
- 238000013519 translation Methods 0.000 description 2
- 235000013343 vitamin Nutrition 0.000 description 2
- 239000011782 vitamin Substances 0.000 description 2
- 229940088594 vitamin Drugs 0.000 description 2
- 229930003231 vitamin Natural products 0.000 description 2
- 150000003722 vitamin derivatives Chemical class 0.000 description 2
- 239000002699 waste material Substances 0.000 description 2
- 241000251730 Chondrichthyes Species 0.000 description 1
- 208000035473 Communicable disease Diseases 0.000 description 1
- 241000195493 Cryptophyta Species 0.000 description 1
- 241000238557 Decapoda Species 0.000 description 1
- 241000276438 Gadus morhua Species 0.000 description 1
- 241000157468 Reinhardtius hippoglossoides Species 0.000 description 1
- 239000007864 aqueous solution Substances 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 235000012716 cod liver oil Nutrition 0.000 description 1
- 239000003026 cod liver oil Substances 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 238000000354 decomposition reaction Methods 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 230000001627 detrimental effect Effects 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- 238000000855 fermentation Methods 0.000 description 1
- 230000004151 fermentation Effects 0.000 description 1
- 230000004720 fertilization Effects 0.000 description 1
- 239000013505 freshwater Substances 0.000 description 1
- 230000002538 fungal effect Effects 0.000 description 1
- 230000002070 germicidal effect Effects 0.000 description 1
- 230000035784 germination Effects 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 238000005286 illumination Methods 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 239000008235 industrial water Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 235000012054 meals Nutrition 0.000 description 1
- 230000003071 parasitic effect Effects 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 238000011045 prefiltration Methods 0.000 description 1
- 238000004321 preservation Methods 0.000 description 1
- 230000035755 proliferation Effects 0.000 description 1
- 230000001012 protector Effects 0.000 description 1
- 230000000717 retained effect Effects 0.000 description 1
- 241001507086 salmonid fish Species 0.000 description 1
- 239000013535 sea water Substances 0.000 description 1
- 239000002002 slurry Substances 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 239000007858 starting material Substances 0.000 description 1
- 210000002784 stomach Anatomy 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
- A01K61/50—Culture of aquatic animals of shellfish
- A01K61/59—Culture of aquatic animals of shellfish of crustaceans, e.g. lobsters or shrimps
-
- 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)
- Farming Of Fish And Shellfish (AREA)
- Nitrogen And Oxygen Or Sulfur-Condensed Heterocyclic Ring Systems (AREA)
- Medicines Containing Material From Animals Or Micro-Organisms (AREA)
- Housing For Livestock And Birds (AREA)
- Catching Or Destruction (AREA)
Abstract
Description
DK 163475 BDK 163475 B
iin
Den foreliggende opfindelse angår en indretning til opdræt af i vand levende dyrelarver og -yngel og af den i krav l's indledning angivne art.The present invention relates to a device for breeding aquatic animal larvae and juveniles and of the nature specified in the preamble of claim 1.
5 Ved i .vand levende dyrelarver forstås her yngel/larver af fisk, skaldyr, insekter, der ikke nødvendigvis lever i vand i deres slutudviklingsfase, såvel som alle ikke-fikserede (fastgroede) larver, der udvikler sig helt eller delvis i vandigt miljø. Opfindelsens indretning er særlig anvendelig til 10 opdræt af i vand levende dyrelarver/yngel med en størrelse under 10 mm.5 Here, aquatic animal larvae means fish, shellfish, insects that do not necessarily live in water during their final stages of development, as well as all non-fixed (solid-growth) larvae that develop wholly or partially in the aqueous environment. The device of the invention is particularly useful for breeding aquatic live larvae / fry with a size below 10 mm.
Bortset fra dyrkning af yngel fra visse fisk, såsom ørred-eller lakseyngel, hvis udgangsmiddelstørrelse er over 1,6 cm, 15 har det hidtil ikke været muligt at opdrætte i vand levende dyrelarver/yngel ved som første næringsmiddel at give dem kunstige og/eller naturlige næringsmidler. Inden for den hidtil kendte teknik var det nødvendigt at benytte naturligt producerede dyreplanter eller et lille antal arter eller andet dyr- 2.0 ket i et reguleret miljø, hvilken teknik er specielt benyttet til yngel fra saltvandsfisk.Apart from the breeding of fry from certain fish, such as trout or salmon fry, whose starting material size is over 1.6 cm, it has hitherto not been possible to breed live aquatic larvae / fry by providing them with artificial and / or first food. natural foods. In the prior art, it was necessary to use naturally produced animal plants or a small number of species or other species in a regulated environment, which technique is especially used for fry from saltwater fish.
For så vidt angår rejelarver beskriver US-patentskrift nr. 4.249.480 et apparat og en fremgangsmåde, i hvilket man gen-25 nemfører adskillelsen af udklækkede larver, der endnu ikke tager næring til sig, for derved først og fremmest at undgå, at de små larver ikke ædes af forældregenerationen. Det bemærkes, at disse ændringer kun finder sted én gang i larvens liv, og at apparatet ikke viser mere end en fælde for disse 30 larver og ikke beskriver eller antyder nogen som helst fodring af laverne ved at give dem kunstige og/eller naturlige næringsmidler. Fransk patentansøgning nr. 2.207.704 angår en fremgangsmåde til opdræt af små skaldyr ved at benytte et system i stagnerende vand, hvor fytoplanktons udvikling stimule-35 res ved en fertilisering ved hjælp af alger. US-patentskri ft nr. 3.693.591 beskriver et apparat, der er beregnet til under et opdræt at beskytte de unge mod voksne, og der henvises heri hverken til fodring eller opdræt.In the case of shrimp larvae, U.S. Patent No. 4,249,480 describes an apparatus and method in which the separation of hatched larvae that are not yet nourished is accomplished, thereby first and foremost preventing them from small larvae are not eaten by the parent generation. It should be noted that these changes occur only once in the life of the larva and that the apparatus shows no more than one trap for these 30 larvae and does not describe or suggest any feeding of the lichens by providing them with artificial and / or natural foods. French Patent Application No. 2,207,704 relates to a method for raising small seafood by using a system in stagnant water where the development of phytoplankton is stimulated by a fertilization by algae. U.S. Patent No. 3,693,591 discloses an apparatus intended to protect young people from adults during a breeding, and neither refers to feeding nor breeding.
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De hele tiden konstaterede talrige fiaskoer og de fiaskoer man oplever under efterfølgende forsøg efter sporadisk succes ved forsøgene på opdræt af i vand levende dyrelarver/yngel med en størrelse på under 10 mm ved hjælp af kunstige næringsmidler 5 skyldes især installationernes eller opdrætbassinernes sanitære forhold, hvilke forhold ødelægges ved den tilstedeværende fauna, f.eks. små parasitlarver, mikroflora, ved forurening af ferske næringsmidler, samt på grund af fermentering af aflejringen fra ikke spiste næringsmidler og affald fra fauna og 10 flora. Der dannes således en forurening med infektionsbetingende oprindelsessteder, der også skyldes svampeproliferati-onen på de faste elementer i opdrætsmiljøet. Ved den kendte teknik har forsøgene på at løse dette problem i det væsentlige angået næringsmidlets valg og art. Man har ligeledes forsøgt 15 periodisk at rengøre opdrætsbassinerne for at undgå udviklingen af infektionsforstyrrelse, men disse forsøg har ikke været kronet med held på grund af vanskeligheden med at overføre larverne fra et forurenet bassin til et rent bassin, da det er umuligt effektivt at gennemføre en tømning ved hævertvirkning 20 af et forurenet vandigt miljø uden at medføre larverne uden at såre dem. Det var altså indtil nu ikke muligt som første næringsmiddel at benytte inaktive lagerholdbare næringsmidler som ved intensiv lakseavl til opdræt af små i vand levende dyrelarver. Dette er et af de problemer, som den foreliggende 25 opfindelse søger at løse.The numerous failures and failures experienced during subsequent attempts for sporadic success in the attempts to breed aquatic live larvae / fry with a size of less than 10 mm using artificial foodstuffs 5 are mainly due to the sanitary conditions of the installations or breeding basins, which conditions are destroyed by the fauna present, e.g. small parasitic larvae, microflora, by contamination of fresh food, and due to fermentation of the deposit from non-eaten food and waste from fauna and 10 flora. Thus, contamination is formed with infection-originating origins, which is also due to the fungal proliferation of the solid elements in the breeding environment. In the prior art, attempts to solve this problem have essentially concerned the choice and nature of the food. Attempts have also been made to periodically clean the breeding basins to avoid the development of infectious disease, but these attempts have not been successfully crowned due to the difficulty of transferring the larvae from a contaminated basin to a clean basin. emptying by siphoning 20 a contaminated aqueous environment without causing the larvae without injuring them. So far, it has not been possible as the first foodstuff to use inactive storage foodstuffs as in intensive salmon breeding for breeding small aquatic animal larvae. This is one of the problems that the present invention seeks to solve.
Til løsning af problemet med opdræt af dyrelarver/yngel er den indledningsvist omtalte indretning ifølge opfindelsen ejendommelig ved det i den kendetegnende del af krav 1 anførte.In order to solve the problem of breeding larvae / fry, the device according to the invention mentioned above is characterized by the features of the characterizing part of claim 1.
3030
Fortrinsvis omfatter den mobile beholder i bunddelen en opholdszone for permanent at tilbageholde opdrætsvæske for at undgå indtørring af larverne.Preferably, the mobile container in the bottom portion comprises a residence zone for permanently retaining breeding fluid to prevent the larvae from drying.
35 I en særlig udførelsesform for opfindelsen udgøres organerne til at adskille 1arverne/yngelen fra opdrætsvandet af en strømningszone, der tillader gennemstrømning af alt eller enIn a particular embodiment of the invention, the means for separating the larvae / fry from the breeding water are constituted by a flow zone which permits the flow of all or a
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3 del af opdrætsvandet, medens 1arverne/yngel en holdes tilbage, f.eks. ved hjælp af en lateral åbning, der er lukket ved hjælp af f i 1 trer ingsorganer, som fortrinsvis består af en si, hvis gennemstrømningsåbninger kan holde larverne tilbage, medens 5 hovedparten af opdrætsvandet kan strømme igennem. løvrigt er det indre kar udformet således, at det har en opholdsdel for larverne/yngelen og resten af opdrætsvandet. Det indre kar har ligeledes en zone udformet til, at man kan overføre larverne/ yngelen til et andet kar uden at beskadige disse.3 part of the breeding water, while the 1 heirs / fry are retained, e.g. by means of a lateral orifice closed by means of 1 inlet means, which preferably consists of a sieve whose flow openings can hold the larvae, while the majority of the breeding water can flow through. leafy, the inner vessel is designed so that it has a living area for the larvae / brood and the rest of the breeding water. The inner vessel also has a zone designed for transferring the larvae / brood to another vessel without damaging them.
1010
Ifølge en anden speciel udførelsesform for opfindelsens genstand er de indre kar eller beholdere monteret i ydre kar eller beholdere således, at de kan meddeles en drejningsbevægelse mod det ydre ved hjælp af vægtstangsorganer, der er fast 15 forbundet med omdrejningsakser. Disse vægtstangsorganer udgøres for hvert indre kar af et par sidearme, der hver har et par som anslag formede gafler, hvori de indre kars eller beholderes understøtninger kan gå i indgreb.According to another particular embodiment of the object of the invention, the inner vessels or containers are mounted in outer vessels or containers so that they can be communicated with a rotary movement towards the exterior by means of lever means fixedly connected to axes of rotation. These lever members are constituted for each inner vessel by a pair of side arms, each having a pair of abutment-shaped forks in which the supports of the inner vessels or containers may engage.
20 Den foreliggende opfindelse anviser ligeledes en vandkulturin-stallation, der omfatter mindst to tætte ydre kar eller beholdere anbragt over for hinanden, og som hver omslutter et indre kar forbundet til organer, hvorved de kan svinges mod de ydre kar, således at et af de indre kar kan om hæld es i det andet, 25 og omvendt.The present invention also discloses a water culture installation comprising at least two dense outer vessels or containers disposed opposite one another, each of which encloses an inner vessel connected to members, whereby they can be pivoted against the outer vessels, such that one of the inner tubes can be poured into the other, 25 and vice versa.
Som det omgivende miljø, hvoraf opdrætsvandet består, kan man forudse forskellige vandmiljøer, f.eks. havvand, ferskvand eller vandige opløsninger, der er fysiologisk kompatible med 30 larvernes liv eller udvikling.As the surrounding environment of the breeding water, different aquatic environments can be predicted, e.g. seawater, fresh water or aqueous solutions that are physiologically compatible with the life or evolution of the 30 larvae.
Som næringsmedium kan man benytte alle former for næringsmidler, der passer til de pågældende larvers udvikling, f.eks. tørpulver på basis af gær, lyofiliseret svinelever, lyofilise-35 ret okselever, torskelevertran, vitaminblandinger, mineralske og/eller organiske blandinger, i passende kombination.All nutrients suitable for the development of the larvae concerned, e.g. yeast-based dry powder, lyophilized pig liver, lyophilized beef liver, cod liver oil, vitamin blends, mineral and / or organic blends, in appropriate combination.
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Opfindelsen anviser således en løsning på opdræt af i vand levende dyrelarver, især for de små larver, som det hidtil har været umuligt at ernære med kunstige næringsmidler. Opfindelsen kan iværksættes under vilkårlige temperaturbetingelser på 5 samme måde som de kendte opdrætfremgangsmåder, såsom de, der er beregnet til ørreder eller laksefisk, hvor der benyttes koldt vand, hvor problemerne med mikrofloraens vækst og den tilsvarende forurening ikke forekommer på en så alvorlig måde, som ved opdrætsbetingelser ved vilkårlig temperatur, der er 10 kompatibel med larvernes udvikling, f.eks. mellem 15 og 30eC.The invention thus provides a solution for breeding aquatic animal larvae, especially for the small larvae which it has hitherto been impossible to feed with artificial foods. The invention can be carried out under any temperature conditions in the same manner as the known breeding methods, such as those intended for trout or salmonids, where cold water is used where the problems of microflora growth and the corresponding pollution do not occur in such a severe manner as at breeding conditions at any temperature compatible with the evolution of the larvae, e.g. between 15 and 30 ° C.
Man ved ligeledes, at det er foretrukket til stadighed at have et næringsmiddeloverskud i forhold til det som 1arverne/ynge-len har behov for i løbet af deres tidlige udviklingsfase. Så-15 ledes som omtalt ovenfor, er det fordelagtigt ifølge opfindelsen at benytte næringsmidler, der har en homogen partikelstørrelse, fortrinsvis i området fra ca. 100 til 200 μιη.It is also known that it is preferable to constantly have a food surplus relative to what the heirs / youngsters need during their early stages of development. Thus, as discussed above, it is advantageous according to the invention to use foodstuffs having a homogeneous particle size, preferably in the range of approx. 100 to 200 μιη.
Opfindelsen kan anvendes til opdræt af alle ikke-fikserede dy-20 relarvearter, der udvikler sig i et vandigt miljø. Ikke fikserede larver er de, der ikke klæber sig fast til væggene af det udstyr, der benyttes til opdræt. Disse ikke-fikserede larver kan være fiskeyngel, skaldyr- eller insektlarver. Opfindelsen er særlig velegnet i forbindelse med dyrelarver, hvis stør-25 relse er mindre end ca. 10 mm. En fagmand ved, at en dimension på ca. 10 mm, som målt i larvens længderetning, svarer til en ægstørrelse på ca. 2-3 mm. Opfi ndel sen kan altså bruges til opdræt af larver i deres tidlige udviklingsfase. Den er særlig interessant til opdræt af fiskeyngel, såsom bars, pighvar, 30 slethvar, brasen, torsk, kabliau, karpe og andre fisk. Som illustrativt eksempel kan det nævnes, at barslarvernes størrelse er ca. 4,5 mm, og torskens og brasens larver er ca. 3 mm. Sådanne larver har det hidtil være umuligt at opdrætte med kunstige næringsmidler under praktisk anvendelige betingelser.The invention can be used for breeding all non-fixed dye relay species developing in an aqueous environment. Unfixed larvae are those that do not adhere to the walls of the equipment used for breeding. These non-fixed larvae may be fish fry, shellfish or insect larvae. The invention is particularly suitable in the case of animal larvae whose size is less than ca. 10 mm. One skilled in the art knows that a dimension of approx. 10 mm, as measured in the larva's longitudinal direction, corresponds to an egg size of approx. 2-3 mm. The invention can thus be used for breeding larvae in their early development phase. It is particularly interesting for breeding fish fry, such as bars, turbot, 30 sharks, bream, cod, kabliau, carp and other fish. As an illustrative example, it can be mentioned that the size of the bar larvae is approx. 4.5 mm, and the larvae of the cod and bream are approx. 3 mm. Such caterpillars have so far been unable to breed with artificial foods under practically usable conditions.
Den foreliggende opfindelse anviser en doseret og lidt rigelig næringsmiddelfordel ing. Således bliver man sikker på, at lar- 35The present invention discloses a dosed and slightly abundant food distribution. Thus, one becomes sure that lar- 35
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5 verne råder over en tilstrækkelig næringsmiddelmængde. Det lille nær ingsmidde1 overskud er ikke skadeligt, da der ifølge opfindelsen anvises en periodisk ændring af opdrætsvandet.5 protectors have a sufficient amount of food. The small nutrient surplus is not detrimental, since according to the invention a periodic change of the breeding water is provided.
5 Den periodiske ændring varierer afhængig af urenhederne eller tilgroningen og mikrofloraens udvikling. For eksempel i forbindelse med karper er en daglig udskiftning passende. Fagmanden kan ved rutineforsøg bestemme hyppigheden, der skal benyttes til hver larve- eller yngelart, idet der ligeledes tag-10 es hensyn til de særlige opdrætsbetinge 1 ser, især næringsmidlets art.5 The periodic change varies depending on the impurities or germination and microflora evolution. For example, in the case of carp, a daily replacement is appropriate. Those skilled in the art may, by routine experimentation, determine the frequency to be used for each larval or breeding species, also taking into account the particular breeding conditions 1, especially the nature of the food.
Som nævnt er det den foreliggende opfindelses formål at anvise en indretning til at iværksætte den ovenfor beskrevne frem-15 gangsmåde. I denne forbindelse bemærkes det, at det er kendt at benytte kar med perforeret bund, især til opdræt af lakse-fiskeyngel. Sådanne kar er ikke egnede til at tilgodese den foreliggende opfindelses behov, især når det drejer sig om at opdrætte små larver på grund af de mulige beskadigelser, der 20 gives ynge1 en/1 arverne.As mentioned, the object of the present invention is to provide a device for carrying out the method described above. In this connection, it is noted that it is known to use vessels with a perforated bottom, especially for breeding salmonid fish fry. Such vessels are not suitable to meet the needs of the present invention, especially when it comes to breeding small larvae due to the possible damage caused to the young / 1 heirs.
Som anført ovenfor angår opfindelsen et ydre kar, der indeholder mindst ét indre kar. Det ydre kars funktion er at rumme det vandige miljø eller opdrætvandet. Det indre kar behøver 25 ikke at bestå af et komplet bur, hvilket kunne medføre, at larverne/yngelen blev beskadiget under vandets udskiftning. Den foreliggende opfindelse anviser altså, at det indre kar omfatter, i det mindste delvis, en sidevæg i form af en si eller et gitter. Siens netmaskedimension er ikke kritisk. Den 30 tilpasses den specielle larve- eller yngelart, der skal opdrættes. Det er tilstrækkeligt, at dimensionen vælges for at undgå tilstopning, samtidig at man undgår, at yngelen/larverne kan passere igennem.As stated above, the invention relates to an outer vessel containing at least one inner vessel. The function of the outer vessel is to accommodate the aqueous environment or the breeding water. The inner vessel does not have to consist of a complete cage, which could cause the larvae / brood to be damaged during water replacement. Thus, the present invention provides that the inner vessel comprises, at least in part, a side wall in the form of a screen or a grid. Si's mesh size is not critical. The 30 is adapted to the particular caterpillar or breeding species to be reared. It is sufficient that the dimension is chosen to avoid clogging while avoiding that the fry / larvae can pass through.
35 Siens orientering på sidefladerne er heller ikke kritisk. Man har imidlertid ved den praktiske udøvelse konstateret, at man opnår udmærkede resultater med sideflader omfattende en si,35 The orientation of the sight on the side surfaces is also not critical. However, it has been found in the practical exercise that excellent results are achieved with side surfaces comprising a screen,
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6 der delvis er orienteret skråt i forhold til det vandrette plan, idet de flader der omgiver en anden flade, næsten fuld-stænd igt har en s i struktur.6, which is partially oriented obliquely to the horizontal plane, the surfaces surrounding another surface having almost completely a structure.
5 Det indre opdrætskar kan omfatte en enkelt sideflade, der således er forsynet med en si. Det er imidlertid interessant, om karrets to sideflader, der er nærmest til udhældningsvæggen har en i det mindste delvis siformet struktur.The inner rearing vessel may comprise a single side surface thus provided with a sieve. It is interesting, however, whether the two side surfaces of the tub closest to the pouring wall have at least a partially-shaped structure.
10 Opdrætningskarret kan varieres på forskellig måde uden at afvige fra den foreliggende opfindelses opfinderiske idé. Det er blot vigtigt at anvise et ydre kar og mindst ét indre kar, hvilket sidste er udformet til at afhælde opdrætsvandet, mens man holder larverne/yngelen tilbage i karret uden fuldstændigt 15 at fjerne opdrætsvandet.The breeding vessel can be varied in various ways without departing from the inventive idea of the present invention. It is only important to provide an outer vessel and at least one inner vessel, the latter being designed to pour the breeding water, while retaining the larvae / brood in the vessel without completely removing the breeding water.
Det ydre kar er formet af kontinuerte vægge med undtagelse af overløbsmunding(er) for tømning af vandet.The outer vessel is formed of continuous walls with the exception of overflow mouth (s) for emptying the water.
20 Det bemærkes også, at et ydre kar kan indeholde et enkelt indre kar med tilsvarende dimensioner eller et antal sådanne kar. Den sidste udførelsesform er fordelagtig ved en industriel vandkultur.It is also noted that an outer vessel may contain a single inner vessel of similar dimensions or a number of such vessels. The latter embodiment is advantageous in an industrial water culture.
25 Opfindelsen gør det muligt at forene en lidt rigelig næringsmiddelfordeling og bevarelse af hygiejnen i opdrætningsbadet i vand levende larver, især af fisk og skaldyr, takket være, at mikrofloraens udvikling afbrydes som følge af opdrætsvandets udskiftning.The invention makes it possible to reconcile a slightly abundant food distribution and preservation of the hygiene in the breeding bath in aquatic living larvae, especially of seafood, thanks to the development of the microflora interrupted by the replacement of the farm water.
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Især når det drejer sig om fisk, kan man således etablere en meget regelmæssig produktion, der er helt uafhængig af årstiderne. De/den takket være opfindelsen udviklede larver/yngel opnår en tilstrækkelig størrelse til derefter af overføres i 35 miljøer for større opdræt, f.eks. damme, indtil fiskens slut-stadie. De således opnåede fisks kvalitet er perfekt. Man har ikke konstateret nogen deformation eller fysiologisk anomali-Especially when it comes to fish, one can thus establish a very regular production, which is completely independent of the seasons. The larvae / fry developed by the invention achieve a sufficient size to then be transmitted in 35 environments for larger breeding, e.g. ponds until the end stage of the fish. The quality of the fish thus obtained is perfect. No deformation or physiological anomaly has been found.
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7 tet. De optimale betingelser for en god tidlig udvikling af larverne/yngelen er således opfyldt ved opfindelsen.7 tet. Thus, the optimum conditions for a good early development of the larvae / brood are met by the invention.
Andre fordele og karakteristika for opfindelsens genstand 5 fremgår af den efterføg 1 ende beskrivelse af en rent illustrativ udførelsesform, hvilken beskrivelse er foretaget under henvisning til tegningen, hvori fig. 1 er et skematisk billede af en komplet installation, der 10 gør det muligt at udføre 1arve/ynge1 opdrætfremgangsmåden for i vand levende dyr, fig. 2 er et perspektivbillede af et opdrætskar ifølge opfindelsen bestående af et ydre kar og et indre kar, 15 fig. 3 viser det i fig. 2 viste indre kar set fra siden, fig. 4 er et perspektivbillede af en anden udførelsesform for opdrætskarret ifølge opfindelsen, 20 fig. 5 er et skematisk aksialt længdesnit af den i fig. 4 viste udførelsesform, fig. 6 er et skematisk delbillede af et kar vist i fig. 5 i 25 rengøringsstilling, og fig. 7 viser skematisk udføreisesformen ifølge fig. 4 set nedefra.Other advantages and characteristics of the object 5 of the invention will become apparent from the following description of a purely illustrative embodiment, which description is made with reference to the drawing, in which fig. Fig. 1 is a schematic view of a complete installation enabling 10 to perform the breeding / breeding method of aquatic animals; 2 is a perspective view of a rearing vessel according to the invention consisting of an outer vessel and an inner vessel; FIG. 3 shows that in FIG. 2 is a side elevational view of FIG. 4 is a perspective view of another embodiment of the breeding cart according to the invention; FIG. 5 is a schematic axial longitudinal section of the one shown in FIG. 4; FIG. 6 is a schematic partial view of a vessel shown in FIG. 5 in the cleaning position, and fig. 7 shows schematically the embodiment according to FIG. 4 seen from below.
30 Opdrætapparatet eller -indretningen ifølge opfindelsen fungerer efter det lukkede kredsløbs princip. Kredsløbet består af et bassin eller et bad 1, der tjener som reserve for det omgivende miljø, f.eks. vand, hvori der er anbragt en beholder 2, der tjener til kredsløbets varmeregulering ved hjælp af en op-35 varmn ingsmodstand 3 på f.eks. 2 Kw, og et køleaggregat 4, der arbejder med en kraft på 0,5 CV.The breeding apparatus or device according to the invention operates according to the principle of the closed circuit. The circuit consists of a basin or bath 1 which serves as a reserve for the surrounding environment, e.g. water in which is placed a container 2 which serves to control the heating of the circuit by means of a heating resistor 3 of e.g. 2 Kw, and a cooling unit 4, operating at a power of 0.5 CV.
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Reguleringsbeholderens 2's indhold løber ved overløb over i bassinet 1, således at reguleringselementerne til stadighed forbliver nedsænket i tilfælde af strømafbrydelse. Samlingen bestående af bassinet 1 og beholderen 2 indeholder en mængde 5 på ca. 1500 liter. En pumpe 5, f.eks. en centrifugalpumpe, anbragt uden for bassinet 1 sikrer vandets kredsløb i samlingen med en maksimal gennemløbsmængde V på 3000 liter i timen. Som vist på tegningen kommer den største del af gennemløbsmængden Vj direkte tilbage til reguleringsbeholderen 2 og sik-10 rer således en temperaturudjævning. En lille gennemløbsmænde V2, f.eks. af større!sesordenen på 500 liter i timen, strømmer forbi en ultraviolet germicid 1 ampe 6 og løber ud i en aksial fordelerrende 7, hvis niveau holdes konstant takket være et overløb 7a, der udtømmer overskuddet i reguleringsbeholderen 15 2.The contents of the regulating container 2 overflow into the basin 1 so that the regulating elements remain continuously submerged in the event of a power failure. The assembly consisting of the basin 1 and the container 2 contains an amount 5 of approx. 1500 liters. A pump 5, e.g. a centrifugal pump located outside the basin 1 ensures the water circulation in the joint with a maximum throughput V of 3000 liters per hour. As shown in the drawing, the greater part of the flow rate Vj returns directly to the control vessel 2 and thus ensures a temperature equalization. A small throughput V2, e.g. of greater order of 500 liters per hour, flows past an ultraviolet germicide 1 amp 6 and discharges into an axial distributor tube 7, the level of which is kept constant thanks to an overflow 7a which depletes the excess in the regulating vessel 15 2.
Denne rende 27 fødes ved hjælp af tyngdekraften via tilførselsrør 12a, 12b.... 12n-l, 12n, der samvirker med tilhørende ventiler 13a, 13b.... 13n-l, 13n, to rækker opdrætskar 8a, 8b....This trough 27 is fed by gravity via supply pipes 12a, 12b .... 12n-l, 12n, which cooperate with associated valves 13a, 13b .... 13n-l, 13n, two rows of breeding vessels 8a, 8b ... .
20 8n-l, henholdsvis 8n. Over renden 7 er der monteret en pro grammeret belysningslampe 20.20 8n-1 and 8n, respectively. A programmed illumination lamp 20 is mounted above the gutter 7.
Overløbet fra hvert opdrætskar strømmer ned på hver sin blok af ekspanderet plastmateriale, f.eks. polyetherskum, 14a, 25 14b.... 14n-l, henholdsvis 14n, anbragt i en afløbsrende 9, hvilken blokrække af ekspanderet materiale fungerer som præfiltreringsmiddel for installationen. Det er klart, at til kredsløbssamlingen er der adskilte afløbsrender, der svarer til de to rækker af opdrætskar 8 og munder ud i to filtre-30 ringsapparater 10, der er nedsænket i bassinet 1. Disse lodrette filtre 10 er blevet udformet efter Terver-princippet, dvs. at de består af fire lodrette vægge af filtrerende polyetherskum, der glider i et gi ideskinnesystem.The overflow from each breeding vessel flows down on its own block of expanded plastic material, e.g. polyether foam, 14a, 14b .... 14n-1 and 14n, respectively, disposed in a drain ring 9, which block of expanded material acts as a pre-filtration agent for the installation. Obviously, for the circuit assembly, there are separate drainage troughs corresponding to the two rows of breeding vessels 8 and ending in two filtering apparatus 10 immersed in the basin 1. These vertical filters 10 have been designed according to the Terver principle. , ie that they consist of four vertical walls of filtered polyether foam that slide into a giant idea rail system.
35 Det skal bemærkes, at indretningen ifølge opfindelsen kan fungere i åbne kredsløb med et indløb for tilskudsvand 21 direkte til reguleringsbeholderen 2. I denne udførelsesform 9It should be noted that the device according to the invention can operate in open circuits with an inlet of supplementary water 21 directly to the control vessel 2. In this embodiment 9
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1ukkes afløbsrenden 9's udløb aj, og åbningen i af løbsstudsen a2 tillader, at vand fjernes fra opdrætskarrene. Et sådant system kan benyttes på samme måde til eventuelle kemiske behandlinger, hvorved man undgår at "ødelægge" de biologiske 5 filtre.1, the outlet gutter 9 is closed aj, and the opening i of the outlet nozzle a2 allows water to be removed from the breeding vessels. Such a system can be used in the same way for any chemical treatments, thereby avoiding "destroying" the biological filters.
Mellem renden 7 og hver række af kar 8 er der monteret et næ-ringsmiddelfordelersystem, der består af et antal fordelerrør 17a, 17b.... 17n-l, 17n med et næringsmiddel fordelerrør per 10 kar. Disse fordelerrør 17 er monteret på en aksel 15, der roteres ved hjælp af en motor 16 med 1 omdrejning pr. minut og koblet enten til et elektrisk tidsrelæ eller til et programmeret kamsystem med en mere robust udformning og ikke vist på tegningen. Denne fordelers princip gør det muligt efter ønske 15 at variere den næringsmiddelmængde, der fordeles takket være dels reguleringen, fordelercyklen, og dels ved åbningen af fordelerspalten, der er anbragt på hver fordeler. Hvert fordelerrør kan samarbejde med et rysteapparat (ikke vist).Between the gutter 7 and each row of vessels 8 is mounted a food distributor system consisting of a plurality of manifolds 17a, 17b .... 17n-l, 17n with one food manifold per 10 vessels. These distributor tubes 17 are mounted on a shaft 15 which is rotated by means of a motor 16 at 1 rpm. per minute and connected either to an electrical time relay or to a programmed cam system with a more robust design and not shown in the drawing. The principle of this distributor allows, as desired, 15 to vary the amount of food distributed thanks to the regulation, the distribution cycle and partly to the opening of the distributor column located on each distributor. Each manifold can cooperate with a shaker (not shown).
20 Hvert opdrætskar 8 består af to kar med i det væsentlige paral lelepipetisk form og indsat i hinanden. Det indre kar 18, hvor larverne henholdsvis yngelen under opdræt befinder sig, har på sin forflade og på en del af sine sideflader et gittervindue af et polyesternet, hvis maskeåbning er mindre end 300 25 μ, hvilket sikrer en meget god filtreringsflade og undertrykker faren for kolmation/tiIstopning, f.eks. på grund af ikke-spiste partiklers nedbrydning eller af partikelaffald. Det ydre kar 19 har i sin øvre part et udløbsrør 19a.Each breeding vessel 8 consists of two vessels of substantially parallel lepipethic shape and inserted into each other. The inner vessel 18, where the larvae and the brood, respectively, are under breeding, has on its surface and on some of its lateral surfaces a grating window of a polyester mesh, whose mesh opening is less than 300 25 µ, which ensures a very good filtration surface and suppresses the danger of colmation / clogging, e.g. due to the decomposition of non-eaten particles or of particulate waste. The outer vessel 19 has in its upper part an outlet pipe 19a.
30 ved brug af den i fig. 1-3 viste udførelsesform overføres 1arverne/yngelen periodisk til et rent opdrætskar (der ikke er vist på tegningen) på følgende måde: det indre kar 18 udtrækkes forsigtigt medens vandet strømmer 35 ud via åbningerne 18a, 18b gennem polyestergitteret, hvilket kar er udformet således, at 1 arverne/yngelen forbliver i et lille rumfang vand på bunden. Derefter overføres larverne/30 using the one shown in FIG. 1-3, the larvae / fry are periodically transferred to a clean breeding vessel (not shown in the drawing) as follows: the inner vessel 18 is gently withdrawn as the water flows out through the openings 18a, 18b through the polyester lattice, thus formed , that the 1 heirs / fry remain in a small volume of water on the bottom. The larvae are then transferred /
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10 yngelen til et rent kar af samme form som karret 18, og man anbringer dette i et andet rent kar med samme dimensioner som det ydre kar 19 og anbringer samlingen af de to kar på plads.10 the fry to a clean vessel of the same shape as the vessel 18, and this is placed in another clean vessel having the same dimensions as the outer vessel 19 and placing the joint of the two vessels in place.
5 Princippet med to kar anbragt i hinanden har to fordele; For det første undgår man problemerne med tilstopning eller ti 1 -slæmning, jf. ovenfor, og for det andet undgår man enhver risiko for at larverne/yngelen tørres ud under de daglige rengøringer, takket være et opholdssted for disse larver/yngel 10 udformet i karret 18's bund.5 The principle of two vessels placed in each other has two advantages; Firstly, you avoid the problems of clogging or ten 1 slurry, cf. above, and secondly, avoid any risk of the larvae / brood being dried out during daily cleaning, thanks to a residence of these larvae / juveniles 10 designed in the bottom of the tub 18.
Det er klart, at karrene ifølge opfindelsen kan antage en hvilken som helst form, der er kompatibel med de ovenfor forklarede dispositioner. Følgelig kan karret 18's bund have en 15 bølget form, og en sidezone af dette kar, i hvilken zone som ikke har et vindue, kan være udstyret med en særlig udløbskonstruktion.It is to be understood that the vessels of the invention may take any form compatible with the above-described dispositions. Accordingly, the bottom of the tub 18 may have a wavy shape, and a side zone of this tub, in which zone not having a window, may be provided with a special outlet structure.
Fig. 4-7 illustrerer en speciel udførelsesform. I denne ind-20 retning er karrene anbragt i en dobbelt række. Hvert indre kar 22a, 22b er placeret i et fast ydre kar 23a, 23b på bevægelig måde både med hensyn til translation og rotation i forhold til sidstnævnte. Hvert indre kar 22a, 22b har et vist antal sidegitterpartier 24a, 24b, der er lukket ved hjælp af si-25 er, og har et specielt overføringsparti 25a, 25b.FIG. 4-7 illustrate a particular embodiment. In this direction, the vessels are arranged in a double row. Each inner vessel 22a, 22b is located in a fixed outer vessel 23a, 23b in a movable manner both in translation and rotation relative to the latter. Each inner vessel 22a, 22b has a certain number of side grid portions 24a, 24b which are closed by means of sieves, and has a special transfer portion 25a, 25b.
Ved hælp af et par drejearme 26a, 26b per kar 22a, 22b, hvilke arme er fast forbundet med omdrejningsakser 27a, 27b, kan man give hvert kar 22a, 22b en drejningsbevægelse mod det ydre ud 30 af yderkarret 23a henholdsvis 23b. Hver drejearm 26a, 26b har et par anslagsgafler 36a, 36b, 37a, 37b, hvori karrene 22a, 22b's pågældende tapunderstøtninger 41a, 41b, 42a, 42b ind griber i de ydre kar 23a, 23b.By means of a pair of pivot arms 26a, 26b per vessel 22a, 22b, which arms are firmly connected to rotation axes 27a, 27b, one vessel 22a, 22b can be given a pivotal movement toward the outer out of the outer vessel 23a and 23b, respectively. Each pivot arm 26a, 26b has a pair of abutment forks 36a, 36b, 37a, 37b in which the respective tap supports 41a, 41b, 42a, 42b engage the respective tap supports 41a, 41b, 42b, 42b.
35 Ved denne udførelsesform kan hvert indre kar 22a, 22b være placeret i tre forskellige stillinger.In this embodiment, each inner vessel 22a, 22b may be located in three different positions.
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11 I den i fig. 4 og 5 viste overføringsstilling indgriber det indre kar 22a, 22b via sine tapunderstøtninger 41a, 41b, 42a, 42b i drejearmene 26a, 26b’s pågældende gafler 36a, 36b, 37a, 37b. Man bemærker at de samme akser 27a, 27b kan tjene til at 5 betjene, hele karrækken. Placeringen af akserne 27a, 27b tillige med karrenes form er vigtige parameter, der skal tages i betragtning for at reducere 1arvernes/yngelens faldhøjde. En langsom rotation af akserne 27a, 27b kan gennemføres enten manuelt ved hjælp af et passende stangsystem eller automatisk 10 ved hjælp af en ikke vist motor på en sådan måde, at den gradvise omhældning af restvandet 28 og larverne/yngelen fortrinsvis gøres under milde betingelser i retning af pilen, hvorved karret 22a og armen 26a i nd tager den i fig. 5 med stiplet streg viste stilling.11 In the embodiment of FIG. 4 and 5, the inner vessel 22a, 22b engages via its pin supports 41a, 41b, 42a, 42b in the pivot arms 36a, 26b's respective forks 36a, 36b, 37a, 37b. It should be noted that the same axes 27a, 27b can serve to serve the entire vessel array. The location of the axes 27a, 27b along with the shape of the vessels are important parameters to consider in order to reduce the fall height of the larvae / fry. A slow rotation of the axes 27a, 27b can be performed either manually by means of a suitable rod system or automatically 10 by means of a motor not shown in such a way that the gradual pouring of the residual water 28 and the larvae / fry is preferably done under mild conditions. the direction of the arrow, whereby the vessel 22a and the arm 26a in nd take it in FIG. 5 in dotted line.
15 I rengøringsstilling, som vist skematisk i fig. 6, svinges karret 22a i den modsatte retning af omhældningsdrejningen ved forudgående translation af karret 22a, således at tappen 42a slår an imod anslag 38a tilvejebragt på karret 23a's øvre si-20 dekanter og tjener som omdrejningspunkter for karret 22a, der indtager den i fig. 6 viste rengøringsstilling. Karret 22b kan ved en identisk translationsforskydning ligeledes komme i anslag mod anslagene 38b anbragt på det ydre kar 23b ved hjælp af sin tap 42b, der ligeledes tjener som omdrejningspunkt, for 25 at dette kan indtage den passende vaskestilling.15 In the cleaning position, as shown schematically in FIG. 6, the vessel 22a is pivoted in the opposite direction of the pouring rotation by prior translation of the vessel 22a, so that the pin 42a abuts abutment 38a provided on the upper side 20 of the vessel 23a and serves as pivot points for the vessel 22a which occupies the one shown in FIG. 6. The vessel 22b can also strike an impact translational 38b on the outer vessel 23b by an identical translational displacement on the outer vessel 23b by means of its pin 42b, which also serves as a pivot point, for this to take the appropriate washing position.
Karrene 22a, 22b's inderflader kan så underkastes en rengøring ved hjælp af f.eks. en varmtvandsstråle.The inner surfaces of the tubs 22a, 22b can then be subjected to cleaning by e.g. a hot water jet.
30 i opdrætsstillingen er de indre kar 22a, 22b blokeret ved hjælp af deres pågældende tappe 42a, 42b i lejer 33a, 33b udstyret med overliggende langstrakte stoporganer for de ydre kar 23a henholdsvis 23b, således at de kan placeres under den automatiske fødemiddel fordeler 29.30 in the breeding position, the inner vessels 22a, 22b are blocked by their respective pins 42a, 42b in bearings 33a, 33b equipped with overhead elongated stop means for the outer vessels 23a and 23b, respectively, so that they can be placed under the automatic feed distributor 29.
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Det er således muligt samtidigt at overføre eller omhælde en del af en rækkes kar (de, der er koblet til omhældningsstil-Thus, it is possible to simultaneously transfer or enclose a portion of a row of vessels (those coupled to the ramp
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12 ling) uden at omhælde hele rækken. Det er klart, at de kar, der befinder sig i opdrætssti 11 ing, ikke påvirkes af tappenes forskydning. Man bemærker iøvrigt, at denne indretning for en stor dels vedkommende kan automatiseres, hvilket i høj grad 5 reducerer det .manuelle arbejde ved 1 arve/yngelopdræt. Ivørigt er der på karrene 23a, 23b tilvejebragt forskellige ventiler 30a, 30b, 31a, 32a, 32b, der gør det muligt at genvinde opdrætskarrenes vand og recyklere dette (30a, 30b, 31a, 31b) eller udtømme rengøringsvandet (32a, 32b).12 ling) without covering the entire row. It is clear that the vessels in the breeding path 11 are not affected by the displacement of the pins. It is also noted that this device can to a large extent be automated, which greatly reduces the manual work of 1 inheritance / breeding. Presently, various valves 30a, 30b, 31a, 32a, 32b are provided on the vessels 23a, 23b, which allow the water of the breeding vessels to be recovered and recycled (30a, 30b, 31a, 31b) or to discharge the cleaning water (32a, 32b).
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Ved at benytte indretningen ifølge opfindelsen har man udført forsøg med opdræt af karpeyngel ved at arbejde som angivet nedenfor.Using the device according to the invention, experiments have been carried out with breeding carp fry by working as indicated below.
15 Yngel af almindelig karpe (Cipinus carpio L.) opdrættes udelukkende under anvendelse af kunstige næringsmidler.15 Common carp brood (Cipinus carpio L.) is bred exclusively using artificial foods.
De diæter, der i dette tilfælde har givet de bedste resultater, havde den følgende sammensætning (i vægt%): 20The diets that gave the best results in this case had the following composition (% by weight):
Diæt A Diæt BDiet A Diet B
Gær* 45 45Yeast * 45 45
Lyofiliseret (frysetørret) svinelever 40 Lyofi liseret okselever - 40 25 Torskelevertran 5 5Lyophilized (lyophilized) pig liver 40 Lyofi lyzed beef liver - 40 25 Cod delivery 5 5
Vitaminblanding 5 5Vitamin mixture 5 5
Mineral blanding 5 5 * Tørgærpulver dyrket på methanol (Institut Francais des 30 Pétroles).Mineral mixture 5 5 * Dry yeast powder grown on methanol (Institut Francais des 30 Pétroles).
Fire yngelportioner hidrørende fra en og samme hunfisks æglægning kunstigt befrugtet af to hanner Mj og M2 modtog i løbet af deres første måltid diæterne A og B i form af partikler med 35 voksende størrelse (100-200 μ, 200-400 μ). Efter 4 ugers fodring var følgende resultater opnået:Four fry portions derived from one and the same female fish egg artificially fertilized by two males Mj and M2 received during their first meal diets A and B in the form of 35 growing size particles (100-200 μ, 200-400 μ). After 4 weeks of feeding, the following results were achieved:
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Middelvægt Sandt antal Teoretisk antal (mg)Average weight True number Theoretical number (mg)
Kar 1 (Mj, diæt A) 242 91 100 5 Kar 2 (M2, diæt A) 352 82 100Vessel 1 (Mj, diet A) 242 91 100 5 Vessel 2 (M2, diet A) 352 82 100
Kar 3 (Mj, diæt B) 266 91 100Vessel 3 (Mj, diet B) 266 91 100
Kar 4 (M2, diæt B) 440 91 100Vessel 4 (M2, diet B) 440 91 100
Udgangsantallet var 160 unger/kar. 60 fisk (20 pr. uge) blev 10 udtaget af hvert kar for vævsundersøgelse. Temperaturen blev forhøjet fra 20°c ved forsøgets begyndelse til 23°C ved afsiutni ngen.The starting number was 160 cubs. 60 fish (20 per week), 10 were sampled from each vessel for tissue examination. The temperature was raised from 20 ° C at the beginning of the experiment to 23 ° C at the time of separation.
Forsøget omfattede ikke kontrolyngel fodret ved dyreplankton 15 for at undgå enhver tilfældig forurening af karrene, der fik tilført næringsmiddel med kunstige næringsmidler, men kun et kontrolforsøg "på tom mave", hvor dødeligheden var total i løbet af 10 dage.The trial did not include control brood fed by zooplankton 15 to avoid any accidental contamination of the vessels fed with artificial foods, but only an "empty stomach" control trial where mortality was total within 10 days.
20 Disse resultater kan sammenlignes med de, der ifølge andre forskere er opnået med dyreplankton (jf. Dabrowski, 1982).20 These results are comparable to those obtained by zooplankton according to other researchers (cf. Dabrowski, 1982).
Således har man ifølge den foreliggende opfindelse løst de problemer, der forekommer ved vandkultur, og som ikke hidtil 25 er løst ved opdræt af i vand levende dyrelarver og -yngel, og dette takket være opdrætsindretningen med 2 kar, som ved hjælp af en hyppig automatisk fordeling af små tørre næringsmiddel-mængder tillader hurtig og effektiv rengøring af opdrætskarrene, således at man i disse eliminerer enhver mikroflora og 30 alle de parasitter, der kan medføre en miljøforurening eller -infektion, hvilket inden for den hidtil kendte teknik medførte en næsten total dødelighed for 1 arver/yngel, der bliver opdrættet med næringsmidler bestående af partikelformet, kunstigt, tørt materiale.Thus, in accordance with the present invention, the problems encountered in aquatic culture have not been solved so far by the breeding of aquatic live larvae and fry, thanks to the two-vessel breeding device, which by means of a frequent automatic distribution of small dry food quantities allows quick and efficient cleaning of the breeding vessels, thereby eliminating any microflora and all the parasites that may cause environmental pollution or infection, which in the prior art resulted in almost total mortality for 1 heir / fry bred with foodstuffs consisting of particulate, artificial, dry material.
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Claims (2)
Applications Claiming Priority (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR8318519 | 1983-11-21 | ||
FR8318519A FR2555022B1 (en) | 1983-11-21 | 1983-11-21 | PROCESS FOR BREEDING LARVAE OF ANIMALS DEVELOPING IN AN AQUATIC ENVIRONMENT AND MEANS FOR CARRYING OUT SAID METHOD |
FR8400271 | 1984-01-10 | ||
PCT/FR1984/000271 WO1985002089A1 (en) | 1983-11-21 | 1984-11-21 | Process for breeding animal larvae growing in an aquatic medium and means for implementing such process |
Publications (4)
Publication Number | Publication Date |
---|---|
DK324785A DK324785A (en) | 1985-07-17 |
DK324785D0 DK324785D0 (en) | 1985-07-17 |
DK163475B true DK163475B (en) | 1992-03-09 |
DK163475C DK163475C (en) | 1992-08-31 |
Family
ID=9294352
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DK324785A DK163475C (en) | 1983-11-21 | 1985-07-17 | DEVICE FOR ANIMAL ENVIRONMENT / BREEDING IN ANIMAL ENVIRONMENT |
Country Status (8)
Country | Link |
---|---|
EP (1) | EP0143710B1 (en) |
JP (1) | JPS61500409A (en) |
AT (1) | ATE45464T1 (en) |
DE (1) | DE3479383D1 (en) |
DK (1) | DK163475C (en) |
FI (1) | FI82173C (en) |
FR (1) | FR2555022B1 (en) |
WO (1) | WO1985002089A1 (en) |
Families Citing this family (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB8708053D0 (en) * | 1987-04-03 | 1987-05-07 | Brook E M | Shellfish purification system |
ES2438943B1 (en) * | 2012-07-18 | 2014-09-09 | Universidad De Sevilla | System of cultivation and maintenance of small aquatic organisms |
CN105994042A (en) * | 2016-05-30 | 2016-10-12 | 铜陵东晟生态农业科技有限公司 | Prawn breeding method |
CN105850860B (en) * | 2016-06-27 | 2018-09-25 | 江西省鑫萱农业开发有限公司 | A kind of greenhouse loach breeding system |
CN107667934B (en) * | 2017-08-31 | 2018-08-31 | 海南良之缘生物科技有限公司 | The cultural method of South America prawn |
Family Cites Families (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3693591A (en) * | 1971-05-06 | 1972-09-26 | Robert Stasio | Baby saver for tropical fish |
FR2267704A1 (en) * | 1974-04-22 | 1975-11-14 | Penlae Yvon | Artemia Salina crustaceans grown in aq medium contg. minerals - foodstuff particles and marine algae e.g. phytoplankton, starting from eggs or larvae |
US4249480A (en) * | 1978-07-18 | 1981-02-10 | Farm Fresh Shrimp Corporation | Apparatus and method for rearing shrimp |
-
1983
- 1983-11-21 FR FR8318519A patent/FR2555022B1/en not_active Expired
-
1984
- 1984-11-21 WO PCT/FR1984/000271 patent/WO1985002089A1/en active IP Right Grant
- 1984-11-21 EP EP84402380A patent/EP0143710B1/en not_active Expired
- 1984-11-21 JP JP59504324A patent/JPS61500409A/en active Pending
- 1984-11-21 DE DE8484402380T patent/DE3479383D1/en not_active Expired
- 1984-11-21 AT AT84402380T patent/ATE45464T1/en not_active IP Right Cessation
-
1985
- 1985-07-17 DK DK324785A patent/DK163475C/en active
- 1985-07-18 FI FI852817A patent/FI82173C/en not_active IP Right Cessation
Also Published As
Publication number | Publication date |
---|---|
WO1985002089A1 (en) | 1985-05-23 |
FI82173B (en) | 1990-10-31 |
DE3479383D1 (en) | 1989-09-21 |
JPS61500409A (en) | 1986-03-13 |
FI852817A0 (en) | 1985-07-18 |
DK324785A (en) | 1985-07-17 |
FR2555022B1 (en) | 1986-10-24 |
FI852817L (en) | 1985-07-18 |
DK324785D0 (en) | 1985-07-17 |
DK163475C (en) | 1992-08-31 |
EP0143710B1 (en) | 1989-08-16 |
FR2555022A1 (en) | 1985-05-24 |
FI82173C (en) | 1991-02-11 |
ATE45464T1 (en) | 1989-09-15 |
EP0143710A1 (en) | 1985-06-05 |
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