CN103385192A - Brachymystax lenok fry high-density rearing method - Google Patents
Brachymystax lenok fry high-density rearing method Download PDFInfo
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- CN103385192A CN103385192A CN2013103247228A CN201310324722A CN103385192A CN 103385192 A CN103385192 A CN 103385192A CN 2013103247228 A CN2013103247228 A CN 2013103247228A CN 201310324722 A CN201310324722 A CN 201310324722A CN 103385192 A CN103385192 A CN 103385192A
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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 the fry rearing field, be specifically related to a kind of thin squama salmon seed 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 ", " thin squama salmon ".Thin squama salmon 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 the destruction of natural ecological environment and artificial factor interference, the resource quantity of thin squama salmon was reduced year by year, now listed national second class protection animal in.The artificial breeding of thin squama salmon has just been listed the key scientific and technological projects of country and relevant provinces and cities in as far back as earlier 1900s; most research units are all because the many reasons such as the parent population gonad development is not good, rearing of fingerling is perfect not; cause weed survival rate low; do not realize that seed in enormous quantities produces; thereby artificial breeding can not form industrialization, and protection and the resource recovery of wild fish brought certain difficulty.
How reaching thin squama salmon seed high density and cultivate, is one of key technology that solves thin squama salmon artificial breeding, only has and forms a ripe rearing of fingerling of cover, realizes that thin squama salmon scale seed breeding just likely becomes a reality.
Summary of the invention
The purpose of this invention is to provide and a kind ofly can improve thin squama salmon seed high density breeding method weed survival rate, that can realize large-scale production.
Technical scheme of the present invention is as follows:
Breeding method of the present invention comprises 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/m3 water body; The fry of the long 2.5 ~ 3.0cm of body, density is 1.0-1.5 ten thousand tails/m3 water body; Body length is at least the fry of 3.5cm, and density is 1000 tails/m2 water body;
Described control discharge comprises: swim is to the fry of the long 2.5cm of body, and streamflow is 2.0-3.0 m3/ min; The fry of the long 2.5 ~ 3.0cm of body, streamflow is 3.0-5.0 m3/min; Body length is at least the fry of 3.5cm, and streamflow is 10.0 m3/min;
Described control food species comprises: the starter diet of fry is Brachionus calyciflorus; The fry of the long 2.5cm of body, feed are with a small amount of cladocera take wheel animalcule as major-minor; The fry of the long 2.5-2.7cm of body, feed with cladocera for leading and being aided with a small amount of wheel animalcule; The fry of the long 2.7-3.5cm of body, feed are the compound of cladocera and water earthworm; The fry of the long 3.5-4.0cm of body, feed are with a small amount of cladocera and granular bait for fish take the water earthworm as major-minor;
Described feeding volume is: while throwing something and feeding, the density of described wheel animalcule is 8.0-12.0/ml at every turn; The density of cladocera is 0.3-0.5/ml; The 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 is controlled in 500lux; Illumination is controlled at 500-1500lux after the fry yolk sac disappears; When body reaches the 3cm left and right, avoid direct light; After the fry opening, evening, intensity of illumination was controlled at 500 ~ 1500Lux.
Further, breeding method of the present invention also comprises the feeding environment of controlling fry and prevents disease;
The feeding environment of described control fry comprises: fry body length is raised in the seed rearing groove during less than 3.5cm, filters and inflates; The fry body is long raises for changing cement pit after 3.5cm over to;
The described disease of preventing and treating comprises: described wheel animalcule, water earthworm were sterilized 30 minutes with 20 * 10-6 potassium permanganate; Described cladocera was sterilized 15 minutes with 100 * 10-6 formalin; Described fry was the terramycin dipping 40 minutes of 2 * 10-6 for three days on end with concentration every 2 days; Described fry was 300 * 10-6 formalin dipping 30 minutes with concentration every 7 days for three days on end.
Further, the described wheel animalcule of breeding method of the present invention is strengthened after 12 hours and throws something and feeds with splitting kettle algae and VC, and the consumption that splits the kettle algae is 0.15g/5 * 105 wheel animalcules/L water, and the consumption of VC is 0.10g/5 * 105 wheel animalcules/L water.
Stopped flowing water when further, breeding method of the present invention is thrown something and fed 30 minutes.
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 of controlling weed survival rate, reduced the feeding cost of thin squama salmon seedling, has increased output, has realized propagating artificially of thin squama salmon seedling, can alleviate the present situation of China's thin squama salmon resource scarcity.
Embodiment
Below with specific embodiment, technical solution of the present invention is described.
Embodiment 1
Infrastructure device: 20 of seed rearing groove diameter 200cm, high 50cm circular glass steel water tanks, each tank water inlet be with the 200 thick acrylic staple fibre drainages of the in-built 5cm of mesh sieve thin,tough silk bag, 2 of 350 watts of vacuum gas filling pumps.4 50 m
2Cement pit.Water source is the gravity flow mountain spring water.
Larval rearing density and discharge: swim is to the long 2.5cm fry of body, density 2.0 ten thousand tails/m
3Water body, streamflow 2.0 m
3/ min.Long 2.5cm-the 3.0cm of fry body, density 1.5 ten thousand tails/m
3Water body, streamflow are controlled at 3.0 m
3/ min, the long 3.5cm of fry body left and right 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 herded medicine company with splitting kettle algae (Qingdao trans-oceanic import and export Co., Ltd) and VC(China) strengthen after 12 hours and throw something and feed.Split the kettle algae with every premium on currency 500,000 wheel animalcule 0.15g ratios, VC consumption 0.10g.
Bait 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 are INVE, NRD2/4, INVEl td..
Bait time feeding volume: 8.0/ml of wheel animalcule density; 0.3/ml of cladocera; The water earthworm is pressed 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 while throwing something and feeding 30 minutes.
The intensity of illumination regulation and control:, in order to extend the seed ingest time, promote the seed Fast Growth, evening, the workshop intensity of illumination was controlled at 800-1200lux.Opening workshop illumination in early stage is controlled in 500lux, and illumination is controlled at 500-1500lux after the fry yolk sac disappears, and when body reaches the 3cm left and right, avoids direct light.
Disease control:
(1) biological feed sterilization: wheel animalcule, water earthworm are with 20 * 10
-6Potassium permanganate sterilization 30 minutes.Cladocera is with 100 * 10
-6Formalin sterilization 15 minutes.
(2) bacteriosis control: used for three days on end terramycin dipping fry every 2 days, concentration is 2 * 10
-6, 40 minutes time.
(3) parasite control: every 7 days, be 300 * 10 with concentration for three days on end
-6Formalin dipping fry, 30 minutes time.
Cultivate floating opening prelarva 34.2 ten thousand through the present embodiment method, cultivate long 4.0-5.0cm seed 24.5 ten thousand tails of body, weed survival rate 71.9%.
Embodiment 2
Infrastructure device: 20 of seed rearing groove diameter 200cm, high 50cm circular glass steel water tanks, each tank water inlet be with the 200 thick acrylic staple fibre drainages of the in-built 5cm of mesh sieve thin,tough silk bag, 2 of 350 watts of vacuum gas filling pumps.4 50 m
2Cement pit.Water source is the gravity flow mountain spring water.
Larval rearing density and discharge: swim is 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 are controlled at 5.0 m
3/ min, the 3.5cm left and right 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 herded medicine company with splitting kettle algae (Qingdao trans-oceanic import and export Co., Ltd) and VC(China) strengthen after 12 hours and throw something and feed.Split the kettle algae with every premium on currency 500,000 wheel animalcule 0.15g ratios, VC consumption 0.10g.
Bait 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 are INVE, NRD2/4, INVEl td..
Bait time feeding volume: 12.0/ml of wheel animalcule density; 0.5/ml of cladocera; The water earthworm is pressed 5.0% of seedling body weight; Granular bait for fish 10.0g.Throw something and feed every day 6 times, cut off the water while throwing something and feeding 30 minutes.
The intensity of illumination regulation and control:, in order to extend the seed ingest time, promote the seed Fast Growth, evening, the workshop intensity of illumination was controlled at 500 ~ 1500lux.Opening workshop illumination in early stage is controlled in 500lux, and illumination is controlled at 500-1500lux after the fry yolk sac disappears, and when body reaches the 3cm left and right, avoids direct light.
Disease control:
(1) biological feed sterilization: wheel animalcule, water earthworm are with 20 * 10
-6Potassium permanganate sterilization 30 minutes.Cladocera is with 100 * 10
-6Formalin sterilization 15 minutes.
(2) bacteriosis control: used for three days on end terramycin dipping fry every 2 days, concentration is 2 * 10
-6, 40 minutes time.
(3) parasite control: every 7 days, be 300 * 10 with concentration for three days on end
-6Formalin dipping fry, 30 minutes time.
Cultivate floating opening prelarva 28.8 ten thousand through the present embodiment method, cultivate long 4.0-5.0cm seed 20.91 ten thousand tails of body, weed survival rate 72.6 %.
Claims (5)
1. one kind thin squama salmon seed high density breeding method, is characterized in that it 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; Body length is at least the fry of 3.5cm, and 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; Body length is at least the fry of 3.5cm, and 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 are with a small amount of cladocera take wheel animalcule as major-minor; The fry of the long 2.5-2.7cm of body, feed with cladocera for leading and being aided with a small amount of wheel animalcule; The fry of the long 2.7-3.5cm of body, feed are the compound of cladocera and water earthworm; The fry of the long 3.5-4.0cm of body, feed are with a small amount of cladocera and granular bait for fish take the water earthworm as major-minor;
Described feeding volume is: while throwing something and feeding, the density of described wheel animalcule is 8.0-12.0/ml at every turn; The density of cladocera is 0.3-0.5/ml; The 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 is controlled in 500lux; Illumination is controlled at 500-1500lux after the fry yolk sac disappears; When body reaches the 3cm left and right, avoid direct light; After the fry opening, evening, intensity of illumination was controlled at 500 ~ 1500Lux.
2. a kind of thin squama salmon seed high density breeding method according to claim 1, characterized by further comprising the feeding environment of controlling fry and prevent disease;
The feeding environment of described control fry comprises: fry body length is raised in the seed rearing groove during less than 3.5cm, filters and inflates; The fry body is long raises for changing cement pit after 3.5cm over to;
The described disease of preventing and treating comprises: described wheel animalcule, water earthworm are with 20 * 10
-6Potassium permanganate sterilization 30 minutes; Described cladocera is with 100 * 10
-6Formalin sterilization 15 minutes; Described fry was 2 * 10 with concentration every 2 days for three days on end
-6Terramycin dipping 40 minutes; Described fry was 300 * 10 with concentration every 7 days for three days on end
-6Formalin dipping 30 minutes.
3. a kind of thin squama salmon seed high density breeding method according to claim 1, is characterized in that described wheel animalcule strengthens after 12 hours and throw something and feed with splitting kettle algae and VC, and the consumption that splits the kettle algae is 0.15g/5 * 10
5Wheel animalcule/L water, the consumption of VC are 0.10g/5 * 10
5Wheel animalcule/L water.
4. a kind of thin squama salmon seed high density breeding method according to claim 1, stopped flowing water 30 minutes while it is characterized in that throwing something and feeding.
5. the described a kind of thin squama salmon seed high density breeding method of any one according to claim 1-4, the water source that it is characterized in that fry raising is mountain spring water.
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Cited By (10)
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| CN103688889A (en) * | 2013-12-24 | 2014-04-02 | 大连海洋大学 | Cultivation density measuring method for aquatic animal planktonic larvae |
| CN104041457A (en) * | 2014-07-07 | 2014-09-17 | 中国水产科学研究院长江水产研究所 | Method for artificial reproduction of brachymystax lenok tsinlingensis |
| CN105052787A (en) * | 2015-07-29 | 2015-11-18 | 通威股份有限公司 | Coregonus peled fry breeding method |
| CN105557595A (en) * | 2016-01-20 | 2016-05-11 | 中国水产科学研究院长江水产研究所 | Cultivation method for brachymystax lenok fry |
| CN106295030A (en) * | 2016-08-16 | 2017-01-04 | 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 |
| CN107079843A (en) * | 2017-05-02 | 2017-08-22 | 中国水产科学研究院黑龙江水产研究所 | Coregonus ussuriensis offspring seed cultivation method |
| CN108260549A (en) * | 2017-12-29 | 2018-07-10 | 上海海洋大学 | A kind of Yadong salmon seedling opening tames and dociles food method |
| CN110367153A (en) * | 2019-09-02 | 2019-10-25 | 吉林省水产科学研究院 | Variegated sculpins postlarva breeding method |
| CN110367154A (en) * | 2019-09-02 | 2019-10-25 | 吉林省水产科学研究院 | Variegated sculpins juvenile fish breeding method |
| CN114651754A (en) * | 2022-04-08 | 2022-06-24 | 中国水产科学研究院黄海水产研究所 | Industrial breeding method for seriola quinqueradiata seeds |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103688889A (en) * | 2013-12-24 | 2014-04-02 | 大连海洋大学 | Cultivation density measuring method for aquatic animal planktonic larvae |
| CN103688889B (en) * | 2013-12-24 | 2016-01-06 | 大连海洋大学 | Aquatic livestock floating larva cultivates density measuring method |
| CN104041457A (en) * | 2014-07-07 | 2014-09-17 | 中国水产科学研究院长江水产研究所 | Method for artificial reproduction of brachymystax lenok tsinlingensis |
| 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 |
| CN105052787A (en) * | 2015-07-29 | 2015-11-18 | 通威股份有限公司 | Coregonus peled fry breeding method |
| CN105557595A (en) * | 2016-01-20 | 2016-05-11 | 中国水产科学研究院长江水产研究所 | Cultivation method for brachymystax lenok fry |
| CN106295030A (en) * | 2016-08-16 | 2017-01-04 | 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 |
| CN107079843A (en) * | 2017-05-02 | 2017-08-22 | 中国水产科学研究院黑龙江水产研究所 | Coregonus ussuriensis offspring seed cultivation method |
| CN108260549A (en) * | 2017-12-29 | 2018-07-10 | 上海海洋大学 | A kind of Yadong salmon seedling opening tames and dociles food method |
| CN110367153A (en) * | 2019-09-02 | 2019-10-25 | 吉林省水产科学研究院 | Variegated sculpins postlarva breeding method |
| CN110367154A (en) * | 2019-09-02 | 2019-10-25 | 吉林省水产科学研究院 | Variegated sculpins juvenile fish breeding method |
| CN114651754A (en) * | 2022-04-08 | 2022-06-24 | 中国水产科学研究院黄海水产研究所 | Industrial breeding method for seriola quinqueradiata seeds |
| 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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