CN106719159A - A kind of Anguilla marmorata feeds mode - Google Patents

A kind of Anguilla marmorata feeds mode Download PDF

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Publication number
CN106719159A
CN106719159A CN201710029196.0A CN201710029196A CN106719159A CN 106719159 A CN106719159 A CN 106719159A CN 201710029196 A CN201710029196 A CN 201710029196A CN 106719159 A CN106719159 A CN 106719159A
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CN
China
Prior art keywords
solid
cultural method
biological floes
eel
anguilla marmorata
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Pending
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CN201710029196.0A
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Chinese (zh)
Inventor
罗国芝
安玉
谭洪新
陈晓庆
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Shanghai Maritime University
Shanghai Ocean University
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Shanghai Maritime University
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Priority to CN201710029196.0A priority Critical patent/CN106719159A/en
Publication of CN106719159A publication Critical patent/CN106719159A/en
Pending legal-status Critical Current

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    • AHUMAN NECESSITIES
    • A01AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01KANIMAL HUSBANDRY; AVICULTURE; APICULTURE; PISCICULTURE; FISHING; REARING OR BREEDING ANIMALS, NOT OTHERWISE PROVIDED FOR; NEW BREEDS OF ANIMALS
    • A01K61/00Culture of aquatic animals
    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02ATECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
    • Y02A40/00Adaptation technologies in agriculture, forestry, livestock or agroalimentary production
    • Y02A40/80Adaptation technologies in agriculture, forestry, livestock or agroalimentary production in fisheries management
    • Y02A40/81Aquaculture, e.g. of fish

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  • Life Sciences & Earth Sciences (AREA)
  • Environmental Sciences (AREA)
  • Marine Sciences & Fisheries (AREA)
  • Zoology (AREA)
  • Animal Husbandry (AREA)
  • Biodiversity & Conservation Biology (AREA)
  • Fodder In General (AREA)
  • Farming Of Fish And Shellfish (AREA)
  • Feed For Specific Animals (AREA)

Abstract

Mode is fed the present invention relates to a kind of Anguilla marmorata, Anguilla marmorata is cultivated in the circulating water culture system equipped with equipment for separating liquid from solid, biofilter, apparatus of oxygen supply and temperature regulating device, collect the solid waste of equipment for separating liquid from solid discharge, solid waste is produced into biological floes using aerobic suspension technology, after precipitation, concentration, add in eel commercial feed, be made doughy compound and feed.Its advantage shows:The present invention is using residual bait and excrement the production biological floes discharged in circulating water culture system equipment for separating liquid from solid, directly fed with eel powder mixing, the treatment such as processing, drying is needed not move through, the microbial activity in biological floes had both been remained, technique is also simplify.

Description

A kind of Anguilla marmorata feeds mode
Technical field
It is that a kind of Anguilla marmorata feeds mode specifically the present invention relates to technical field of aquaculture.
Background technology
Generally, the protein of the 20-25% for feeding bait in intensive aquaculture activity is converted into the flesh of fish, remains It is remaining to be present in breeding environment in the form of ammonia nitrogen, residual bait and the excrement.Circulating water culture system is by water used for aquiculture The most of residual bait excrement of separation of solid and liquid removal, biofiltration ammonia nitrogen is changed into the processing modes such as nitrate by nitrite and Realize the recycling of breeding water.In the tail draining discharged by equipment for separating liquid from solid, the residual bait excrement of high concentration is usually contained. Research shows that the circulating water cultivation of annual output 1000kg produces the solid particle discarded object (dry weight) of about 375kg every year.So The resource and minimizing for how realizing solid particulate matter in aquaculture system are to realize that circulating water culture system no pollution is arranged One of core technology put.
Bioflocculation technology is one of more ripe technology for applying in Wastewater Treated by Activated Sludge Process municipal wastewater.Abundant Stirring, oxygen supply and suitable C:Under the conditions of N (15-20), bioflocculation technology utilizes the inorganic nitrogen assimilation process of microorganism, will be residual Ammonia nitrogen, cultured water and nitrate transformation into bacterial components in bait and excrement and breeding water body, form particle cybotactic groups (normal quilt Referred to as biological floes), can directly be absorbed by filter-feeding, ominivore-fish and shrimp, it is also possible to which the mode such as precipitating, filter is carried out Collect, as the component of pellet after drying.Its meaning is the cost that can reduce water process, and realizes the secondary of waste Utilize, reduce feed cost.
Biological flocculation is originated as the microprotein of cultivated animals, and from the angle of nutrition, major advantage is its life Thing activity.Therefore, pellet is made after drying a certain degree of influence on its activity, and cost of manufacture also needs to be examined Consider.The cultivated animals for being also only applicable to filter-feeding and omnivorousness directly are fed, its utilization scope is limited.
Anguilla marmorata (Anguilla marmorata) belongs to Anguilliforme, and Anguillidae, Anguilla, forage protein is not less than 45%, Eel powder is blended together dough when feeding, feed scatters than feeding pellet substantially, so the feed coefficient one of common eel cultivation As more than 1.3, and the content of crude protein can reach 30% in its remaining residual bait excrement.
Chinese patent application 201110231065.3 discloses a kind of Anguilla marmorata cultural method, and " rest is set in pond Bed ".Chinese patent application 201410770352.5 discloses a kind of common eel cultivation circular water treating system, using bioanalysis reparation Technology three-level is purified.Chinese patent application 201620490500.2 discloses a kind of Anguilla marmorata indoor culture pond.The present invention is provided A kind of Multi-class propagation mode of eel feed, while the recycling of the solid waste of circulating water culture system is realized, Have not yet to see report.
The content of the invention
The purpose of the present invention is directed to deficiency of the prior art, there is provided a kind of Anguilla marmorata feeds mode.
To achieve the above object, the present invention is adopted the technical scheme that:A kind of cultural method of Anguilla marmorata, equipped with solid-liquid Anguilla marmorata is cultivated in the circulating water culture system of separator, biofilter, apparatus of oxygen supply and temperature regulating device, solid-liquid point is collected From the solid waste of device discharge, solid waste is produced into biological floes, precipitation, concentration using aerobic suspension technology Afterwards, add in eel commercial feed, be made doughy compound and feed.
The addition of biological floes is the 10% of eel commercial feed dry weight.
Doughy compound twice is fed daily, is fed according to the 2-3% of Anguilla marmorata body weight every time.
PH value 7.0-7.5 in Anguilla marmorata breeding process, 28 DEG C -30 DEG C of water temperature, more than dissolved oxygen 6mg/L, total ammonia nitrogen exists Below 2mg/L, in below 0.5mg/L, nitrate is in below 20mg/L for nitrite nitrogen.
Thick protein >=48% in described eel commercial feed.
It is by the method that solid waste is produced into biological floes:Solid waste is injected into suspending type biological reactor In, treat that the stable crude protein content in below 1mg/L, biological floes of nitrite nitrogen of bioreactor is stable more than 30%, It is considered as biological floes culture ripe.
Suspended particulate matter concentration maintains 5000-5500mg/L in biological floes incubation, and dissolved oxygen is maintained More than 5mg/L, pH maintain more than 7.0, DOC/TAN and maintain more than 15.
Described biofilter is based on Autotrophic nitrification process.
The invention has the advantages that:
1st, the present invention is using residual bait and excrement the production bioflocculation discharged in circulating water culture system equipment for separating liquid from solid Body, directly feeds with eel powder mixing, needs not move through the treatment such as processing, drying, has both remained the microorganism in biological floes Activity, also simplify technique.
2nd, it is the 10% of dry weight to feed ratio.If too high, ingesting and growth result for common eel can be influenceed.
Specific embodiment
The specific embodiment that the present invention is provided is elaborated with reference to embodiment.
Equipped with equipment for separating liquid from solid, the biofilter based on Autotrophic nitrification process, apparatus of oxygen supply and temperature regulating device Circulating water culture system middle-high density cultivation Anguilla marmorata, by equipment for separating liquid from solid discharge it is anti-based on residual bait, excrement Precipitation is collected in bath, and the residual bait and excrement of collection are produced into biological flocculation using aerobic suspension technology, is precipitated, concentration, directly Add in eel powder, be made dough and feed.
Specially:
1. flco cultivation stage
Circulating water aquiculture system configures 60 mesh roller solid-liquid separating machines, cultivates Anguilla marmorata, and load is 50-60kg/ m3, after volume is positioned over into solid-liquid separating machine blow-off pipe for the bucket of 18L, the solid waste of solid-liquid separating machine discharge is by row Dirty pipe is flowed into bucket.Suspending type biological reactor (the ginseng of the solid waste injection independent research that will be deposited in bucket daily Examine Chinese patent 201110104176.8), suspended particulate matter concentration maintains 5000-5500mg/L, and dissolved oxygen maintains 5mg/L More than, stirring intensity 0.08w/m3
PH maintains more than 7.0 in adjusting water with sodium acid carbonate.The total ammonia nitrogen (TAN) for surveying flco aquarium in every three days, it is sub- Nitrate nitrogen (NO2 -- N), nitrate (NO3 -- N), dissolved organic carbon (DOC).DOC/TAN is maintained in adjusting water with edible glucose More than 15.The NO of question response device2 -- N stabilizations crude protein content stabilization in below 1mg/L, flco more than 30%, is considered as life Thing flocculation culture is ripe.
The bioflocculation that maturation will have been cultivated is pumped into the bucket of 100L with water pump, is staticly settled 30 minutes, pumps supernatant Liquid, the flco of precipitation is put into Refrigerator store standby by forming concentration flco after the strainer filtering of 300 mesh.
2. flco feeds the stage
The Anguilla marmorata (counterpoise 350g/ tails) of health, uniform specification is put in a suitable place to breed in the indoor closed recirculated water for working well In cultivating system, breeding density is 30kg/m3.12 times/day of water body exchange rate in breeding process, maintain Anguilla marmorata normal growth institute Need:PH value 7.0-7.5,28 DEG C -30 DEG C of water temperature, more than dissolved oxygen 6mg/L, total ammonia nitrogen (TAN) is in below 2mg/L, nitrite nitrogen (NO2 -- N) below 0.5, nitrate (NO3 -- N) in below 20mg/L.
Eel commercial feed and biological floes mixing feed.Commercial feed thick protein >=48%.Before feeding every time, will The concentration flco of preservation takes out, and normal temperature unfreezing is mixed into dough with commodity material.Flco addition is (dry commercial feed Weight) 10%.Feed twice is fed daily, is fed according to the 2-3% of common eel body weight every time.Pull common eel out Weighing body within every 15 days Weight, feeding volume is adjusted according to common eel body weight.
3. culture efficiency
By the cultivation of 150 days, compared with the control group for feeding eel powder completely, the Anguilla marmorata of floc sedimentation+eel powder is fed The speed of growth (3.2g/ tails day) of (experimental group) is slightly below control group (3.5g/ tails day), but significant difference is not obvious. Crude protein and amino acid composition, content no significant difference in the Anguilla marmorata muscle of back of experimental group and control group.
Compared with control group, experimental group has saved the use of commercial feed, it is often more important that realize residual in breeding process The recycling of bait and excrement.
The above is only the preferred embodiment of the present invention, it is noted that for the ordinary skill people of the art Member, on the premise of the inventive method is not departed from, can also make some improvement and supplement, and these are improved and supplement also should be regarded as Protection scope of the present invention.

Claims (8)

1. a kind of cultural method of Anguilla marmorata, it is characterised in that equipped with equipment for separating liquid from solid, biofilter, apparatus of oxygen supply With cultivate Anguilla marmorata in the circulating water culture system of temperature regulating device, collect the solid waste of equipment for separating liquid from solid discharge, utilize Solid waste is produced into biological floes by aerobic suspension technology, after precipitation, concentration, is added in eel commercial feed, is made Doughy compound feeds.
2. cultural method according to claim 1, it is characterised in that the addition of biological floes is eel commercial feed 10% (dry weight).
3. cultural method according to claim 1, it is characterised in that feed doughy compound twice daily, every time 2-3% according to Anguilla marmorata body weight feeds.
4. cultural method according to claim 1, it is characterised in that pH value 7.0-7.5, water temperature in Anguilla marmorata breeding process 28 DEG C -30 DEG C, more than dissolved oxygen 6mg/L, in below 2mg/L, in below 0.5mg/L, nitrate is in 20mg/ for nitrite nitrogen for total ammonia nitrogen Below L.
5. cultural method according to claim 1, it is characterised in that thick protein in described eel commercial feed >= 48%.
6. cultural method according to claim 1, it is characterised in that solid waste is produced into the side of biological floes Method is:Solid waste is injected in suspending type biological reactor, the nitrite nitrogen stabilization of bioreactor is treated in below 1mg/L, Crude protein content stabilization is considered as biological floes culture ripe more than 30% in biological floes.
7. cultural method according to claim 6, it is characterised in that suspended particulate substance is dense in biological floes incubation Degree maintains 5000-5500mg/L, and dissolved oxygen maintains more than 5mg/L, pH maintain more than 7.0, DOC/TAN maintain 15 with On.
8. cultural method according to claim 1, it is characterised in that described biofilter is with Autotrophic nitrification process It is main.
CN201710029196.0A 2017-01-16 2017-01-16 A kind of Anguilla marmorata feeds mode Pending CN106719159A (en)

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111194826A (en) * 2020-01-14 2020-05-26 大连海洋大学 Method for preparing bait from aquaculture solid waste
CN115072883A (en) * 2022-06-17 2022-09-20 上海海洋大学 Biological floc particles and activation method and application thereof

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102334459A (en) * 2010-07-20 2012-02-01 上海海洋大学 Circulating water aquaculture system

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102334459A (en) * 2010-07-20 2012-02-01 上海海洋大学 Circulating water aquaculture system

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111194826A (en) * 2020-01-14 2020-05-26 大连海洋大学 Method for preparing bait from aquaculture solid waste
CN115072883A (en) * 2022-06-17 2022-09-20 上海海洋大学 Biological floc particles and activation method and application thereof
CN115072883B (en) * 2022-06-17 2023-11-14 上海海洋大学 Biological floc particles and activation method and application thereof

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