CN103385192B - Brachymystax lenok fry high-density rearing method - Google Patents
Brachymystax lenok fry high-density rearing method Download PDFInfo
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- CN103385192B CN103385192B CN201310324722.8A CN201310324722A CN103385192B CN 103385192 B CN103385192 B CN 103385192B CN 201310324722 A CN201310324722 A CN 201310324722A CN 103385192 B CN103385192 B CN 103385192B
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- 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
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Abstract
The invention relates to the field of fry rearing, in particular to a brachymystax lenok fry high-density rearing method. The brachymystax lenok fry high-density rearing method comprises the steps of controlling the fry rearing density, controlling the water flow, controlling types of baits, controlling the feeding quantity and controlling the illumination intensity. According to the rearing method disclosed by the invention, high-density rearing can be carried out on the premise of controlling the survival rate of fries, rearing cost of brachymystax lenok is reduced, the output is improved, manual rearing of brachymystax lenok is implemented, and the current situation of shortage of resources of brachymystax lenok in China can be relieved.
Description
Technical field
The present invention relates to fry rearing field, be specifically related to a kind of fine-scaled graphite fry high-density breeding method.
Background technology
Qinling Mountains Brachymystax net-rope, salmon shape order, salmon section, brachymystax lenok belong to.Have another name called " brachymystax lenok ", " fine-scaled graphite ".Fine-scaled graphite is one of fish of China's high and cold area special product, and also only this genus is a kind of in the world, and its meat flavour is fertile, fat content high (3.8% ~ 7.7%), and nutritious, ovum is also quite famous and precious.It is a kind of famous and precious economic fish.In the last few years, due to destruction and the interference of artificial factor of natural ecological environment, the resource quantity of fine-scaled graphite was reduced year by year, had now listed national second class protection animal in.The artificial breeding of fine-scaled graphite just lists country and the key scientific and technological projects about provinces and cities in as far back as earlier 1900s; most research unit is all because the many reasons such as parent population gonad development is not good, rearing of fingerling is perfect not; cause weed survival rate low; do not realize Seedling production in enormous quantities; thus artificial breeding can not form industrialization, certain difficulty is brought to the protection of wild fish and resource recovery.
How to reach fine-scaled graphite fry high-density to cultivate, be one of key technology solving fine-scaled graphite artificial breeding, only have the rearing of fingerling forming a set of maturation, realize fine-scaled graphite scale seed breeding and just likely become a reality.
Summary of the invention
The object of this invention is to provide a kind of that can improve weed survival rate, that large-scale production can be realized fine-scaled graphite fry high-density breeding method.
Technical scheme of the present invention is as follows:
Breeding method of the present invention comprises control fry culture density, controls discharge, controls food species, controls feeding volume and controlled light intensity;
Described control fry culture density comprises: swim is to the fry of the long 2.5cm of body, and density is 2.0 ~ 3.0 ten thousand tails/m
3water body; The fry of the long 2.5 ~ 3.0cm of body, density is 1.0-1.5 ten thousand tails/m
3water body; The long fry being at least 3.5cm of body, density is 1000 tails/m
2water body;
Described control discharge comprises: swim is to the fry of the long 2.5cm of body, and streamflow is 2.0-3.0 m
3/ min; The fry of the long 2.5 ~ 3.0cm of body, streamflow is 3.0-5.0 m
3/ min; The long fry being at least 3.5cm of body, streamflow is 10.0 m
3/ min;
Described control food species comprises: the starter diet of fry is Brachionus calyciflorus; The fry of the long 2.5cm of body, feed is for being major-minor with a small amount of cladocera with wheel animalcule; The fry of the long 2.5-2.7cm of body, feed is based on cladocera and be aided with a small amount of wheel animalcule; The fry of the long 2.7-3.5cm of body, feed is the compound of cladocera and water earthworm; The fry of the long 3.5-4.0cm of body, feed is be major-minor with a small amount of cladocera and granular bait for fish with water earthworm;
Described feeding volume is: when throwing something and feeding at every turn, and the density of described wheel animalcule is 8.0-12.0/ml; The density of cladocera is 0.3-0.5/ml; Water earthworm is the 3.0-5.0% of fry body weight; Granular bait for fish is 5.0-10.0g; Throw something and feed every day 6 times;
Described controlled light intensity comprises: the illumination in early stage of fry opening controls within 500lux; After fry yolk sac disappears, illumination controls at 500-1500lux; When body reaches about 3cm, avoid direct light; After fry opening, evening, intensity of illumination controlled at 500 ~ 1500lux.
Further, breeding method of the present invention also comprises the feeding environment of control fry and prevents disease;
The feeding environment of described control fry comprises: raise in seed rearing groove when fry body length is less than 3.5cm, carry out filtering and inflating; Fry body is long raises for proceeding to cement pit after 3.5cm;
Described controlling disease comprises: described wheel animalcule, water earthworm are with 20 × 10
-6potassium permanganate is sterilized 30 minutes; Described cladocera is with 100 × 10
-6formalin is sterilized 15 minutes; Described fry was 2 × 10 by concentration every 2 days for three days on end
-6terramycin dipping 40 minutes; Described fry was 300 × 10 by concentration every 7 days for three days on end
-6formalin dipping 30 minutes.
Further, the wheel animalcule described in breeding method of the present invention is strengthened after 12 hours throw something and feed with splitting kettle algae and VC, and to calculate containing 500,000 wheel animalcule in every premium on currency, the consumption splitting kettle algae is the consumption of 0.15g, VC is 0.10g.
Further, flowing water 30 minutes are stopped when breeding method of the present invention is thrown something and fed.
Further, the water source of breeding method fry raising of the present invention is mountain spring water.
Beneficial effect of the present invention is:
Breeding method of the present invention can carry out high-density breeding under the prerequisite controlling weed survival rate, reduces the feeding cost of fine-scaled graphite seedling, increases output, achieve propagating artificially of fine-scaled graphite seedling, can alleviate the present situation that China's fine-scaled graphite fish resource is in short supply.
Embodiment
With specific embodiment, technical solution of the present invention is described below.
Embodiment 1
Infrastructure device: seed rearing groove diameter 200cm, high 50cm circular glass steel water tank 20, each tank water inlet thick acrylic staple fibre drainage of the in-built 5cm of 200 mesh sieve thin,tough silk bag, 350 watts of vacuum gas filling pumps 2.4 50 m
2cement pit.Water source is gravity flow mountain spring water.
Larval rearing density and discharge: swim to the long 2.5cm fry of body, density 2.0 ten thousand tails/m
3water body, streamflow 2.0 m
3/ min.The long 2.5cm of fry body-3.0cm, density 1.5 ten thousand tails/m
3water body, streamflow controls at 3.0 m
3/ min, long about the 3.5cm of fry body moves into cement pit and cultivates, density 1000 tails/m
2, streamflow 10.0 m
3/ min.
Open-mouthed bait: be Brachionus calyciflorus.Cold water fish is to the demand of unsaturated fatty acid higher than other fish, and before throwing something and feeding, wheel animalcule is with splitting kettle algae (the trans-oceanic Import and Export Co., Ltd. in Qingdao) and medicine company is herded by VC(China) strengthen after 12 hours and throw something and feed.Split kettle algae with every premium on currency 500,000 wheel animalcule 0.15g ratio, VC consumption 0.10g.
Feed series: the long 2.5cm fry of body, wheel animalcule+cladocera; The long 2.5-2.7cm fry of body, cladocera+wheel animalcule; The long 2.7-3.5cm fry of body, cladocera+water earthworm; The long 3.5-4.0cm fry of body, cladocera+water earthworm+granular bait for fish, granular bait for fish is INVE, NRD2/4, INVEl td..
Bait time feeding volume: wheel animalcule density 8.0/ml; Cladocera 0.3/ml; Water earthworm presses 3.0% of seedling body weight; Granular bait for fish 5.0-g.Throw something and feed every day 6 times, cut off the water when throwing something and feeding 30 minutes.
Intensity of illumination regulates and controls: in order to extend seed ingest time, and promote that seed grows fast, evening, workshop intensity of illumination controlled at 800-1200lux.Opening workshop illumination in early stage controls within 500lux, and after fry yolk sac disappears, illumination controls at 500-1500lux, when body reaches about 3cm, avoids direct light.
Disease control:
(1) biological feed sterilization: wheel animalcule, water earthworm are with 20 × 10
-6potassium permanganate is sterilized 30 minutes.Cladocera is with 100 × 10
-6formalin is sterilized 15 minutes.
(2) bacteriosis control: used terramycin dipping fry for three days on end every 2 days, concentration is 2 × 10
-6, 40 minutes time.
(3) parasite control: be 300 × 10 by concentration for three days on end every 7 days
-6formalin dipping fry, 30 minutes time.
Floating opening prelarva 34.2 ten thousand is cultivated, nurture body long 4.0-5.0cm seed 24.5 ten thousand tail, weed survival rate 71.9% through the present embodiment method.
Embodiment 2
Infrastructure device: seed rearing groove diameter 200cm, high 50cm circular glass steel water tank 20, each tank water inlet thick acrylic staple fibre drainage of the in-built 5cm of 200 mesh sieve thin,tough silk bag, 350 watts of vacuum gas filling pumps 2.4 50 m
2cement pit.Water source is gravity flow mountain spring water.
Larval rearing density and discharge: swim to the long 2.5cm fry of body, density 3.0 ten thousand tails/m
3water body, streamflow 3.0 m
3/ min.The long 2.5cm-3.0m of fry body, density 1.5 ten thousand tails/m
3water body, streamflow controls at 5.0 m
3about/min, 3.5cm move into cement pit and cultivate, density 1000 tails/m
2, streamflow 10.0 m
3/ min.
Open-mouthed bait: be Brachionus calyciflorus.Cold water fish is to the demand of unsaturated fatty acid higher than other fish, and before throwing something and feeding, wheel animalcule is with splitting kettle algae (the trans-oceanic Import and Export Co., Ltd. in Qingdao) and medicine company is herded by VC(China) strengthen after 12 hours and throw something and feed.Split kettle algae with every premium on currency 500,000 wheel animalcule 0.15g ratio, VC consumption 0.10g.
Feed series: the long 2.5cm fry of body, wheel animalcule+cladocera; The long 2.5-2.7cm fry of body, cladocera+wheel animalcule; The long 2.7-3.5cm fry of body, cladocera+water earthworm; 3.5-4.0cm cladocera+water earthworm+granular bait for fish, granular bait for fish is INVE, NRD2/4, INVEl td..
Bait time feeding volume: wheel animalcule density 12.0/ml; Cladocera 0.5/ml; Water earthworm presses 5.0% of seedling body weight; Granular bait for fish 10.0g.Throw something and feed every day 6 times, cut off the water when throwing something and feeding 30 minutes.
Intensity of illumination regulates and controls: in order to extend seed ingest time, and promote that seed grows fast, evening, workshop intensity of illumination controlled at 500 ~ 1500lux.Opening workshop illumination in early stage controls within 500lux, and after fry yolk sac disappears, illumination controls at 500-1500lux, when body reaches about 3cm, avoids direct light.
Disease control:
(1) biological feed sterilization: wheel animalcule, water earthworm are with 20 × 10
-6potassium permanganate is sterilized 30 minutes.Cladocera is with 100 × 10
-6formalin is sterilized 15 minutes.
(2) bacteriosis control: used terramycin dipping fry for three days on end every 2 days, concentration is 2 × 10
-6, 40 minutes time.
(3) parasite control: be 300 × 10 by concentration for three days on end every 7 days
-6formalin dipping fry, 30 minutes time.
Floating opening prelarva 28.8 ten thousand is cultivated, nurture body long 4.0-5.0cm seed 20.91 ten thousand tail, weed survival rate 72.6 % through the present embodiment method.
Claims (5)
1. a fine-scaled graphite fry high-density breeding method, is characterized in that it comprises and controls fry culture density, control discharge, control food species, control feeding volume and controlled light intensity;
Described control fry culture density comprises: swim is to the fry of the long 2.5cm of body, and density is 2.0 ~ 3.0 ten thousand tails/m
3water body; The fry of the long 2.5 ~ 3.0cm of body, density is 1.0-1.5 ten thousand tails/m
3water body; The long fry being at least 3.5cm of body, density is 1000 tails/m
2water body;
Described control discharge comprises: swim is to the fry of the long 2.5cm of body, and streamflow is 2.0-3.0 m
3/ min; The fry of the long 2.5 ~ 3.0cm of body, streamflow is 3.0-5.0 m
3/ min; The long fry being at least 3.5cm of body, streamflow is 10.0 m
3/ min;
Described control food species comprises: the starter diet of fry is Brachionus calyciflorus; The fry of the long 2.5cm of body, feed is for being major-minor with a small amount of cladocera with Brachionus calyciflorus; The fry of the long 2.5-2.7cm of body, feed is based on cladocera and be aided with a small amount of Brachionus calyciflorus; The fry of the long 2.7-3.5cm of body, feed is the compound of cladocera and water earthworm; The fry of the long 3.5-4.0cm of body, feed is be major-minor with a small amount of cladocera and granular bait for fish with water earthworm;
Described feeding volume is: when throwing something and feeding at every turn, and the density of described Brachionus calyciflorus is 8.0-12.0/ml; The density of cladocera is 0.3-0.5/ml; Water earthworm is the 3.0-5.0% of fry body weight; Granular bait for fish is 5.0-10.0g; Throw something and feed every day 6 times;
Described controlled light intensity comprises: the illumination in early stage of fry opening controls within 500lux; After fry yolk sac disappears, illumination controls at 500-1500lux; When body reaches about 3cm, avoid direct light; After fry opening, evening, intensity of illumination controlled at 500 ~ 1500lux.
2. a kind of fine-scaled graphite fry high-density breeding method according to claim 1, characterized by further comprising the feeding environment and controlling disease that control fry;
The feeding environment of described control fry comprises: raise in seed rearing groove when fry body length is less than 3.5cm, carry out filtering and inflating; Fry body is long raises for proceeding to cement pit after 3.5cm;
Described controlling disease comprises: described Brachionus calyciflorus, water earthworm are with 20 × 10
-6potassium permanganate is sterilized 30 minutes; Described cladocera is with 100 × 10
-6formalin is sterilized 15 minutes; Described fry was 2 × 10 by concentration every 2 days for three days on end
-6terramycin dipping 40 minutes; Described fry was 300 × 10 by concentration every 7 days for three days on end
-6formalin dipping 30 minutes.
3. a kind of fine-scaled graphite fry high-density breeding method according to claim 1, it is characterized in that described wheel animalcule is strengthened after 12 hours and throws something and feeds with splitting kettle algae and VC, to calculate containing 500,000 wheel animalcule in every premium on currency, the consumption splitting kettle algae is the consumption of 0.15g, VC is 0.10g.
4. a kind of fine-scaled graphite fry high-density breeding method according to claim 1, stops flowing water 30 minutes when it is characterized in that throwing something and feeding.
5. a kind of fine-scaled graphite fry high-density breeding method according to any one in claim 1-4, is characterized in that the water source of fry raising is mountain spring water.
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| CN201310324722.8A CN103385192B (en) | 2013-07-30 | 2013-07-30 | Brachymystax lenok fry high-density rearing method |
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|---|---|---|---|
| CN201310324722.8A CN103385192B (en) | 2013-07-30 | 2013-07-30 | Brachymystax lenok fry high-density rearing method |
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| CN103385192A CN103385192A (en) | 2013-11-13 |
| CN103385192B true CN103385192B (en) | 2015-06-10 |
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| CN103688889B (en) * | 2013-12-24 | 2016-01-06 | 大连海洋大学 | Aquatic livestock floating larva cultivates density measuring method |
| CN104041457B (en) * | 2014-07-07 | 2016-04-06 | 中国水产科学研究院长江水产研究所 | A kind of Qinling Mountains fine-scaled graphite artificial fecundation method |
| CN105052787B (en) * | 2015-07-29 | 2018-01-05 | 通威股份有限公司 | Pelyad fry rearing method |
| CN105557595B (en) * | 2016-01-20 | 2018-06-15 | 中国水产科学研究院长江水产研究所 | A kind of breeding method of Qinling Mountains fine-scaled graphite seed |
| CN106295030B (en) * | 2016-08-16 | 2019-03-12 | 中国水产科学研究院黑龙江水产研究所 | A kind of fine-scaled graphite cultivation dynamic quantitative feeding method |
| CN107079843B (en) * | 2017-05-02 | 2020-08-14 | 中国水产科学研究院黑龙江水产研究所 | Breeding method of coregonus ussuriensis fries |
| CN108260549B (en) * | 2017-12-29 | 2021-04-09 | 上海海洋大学 | Mouth opening feeding domestication method for Atlantic salmon fry |
| CN110367154A (en) * | 2019-09-02 | 2019-10-25 | 吉林省水产科学研究院 | Variegated sculpins juvenile fish breeding method |
| CN110367153A (en) * | 2019-09-02 | 2019-10-25 | 吉林省水产科学研究院 | Variegated sculpins postlarva breeding method |
| CN114651754B (en) * | 2022-04-08 | 2023-10-20 | 中国水产科学研究院黄海水产研究所 | Industrial cultivation method for Seriola quinquefolia seedlings |
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