CN102524135A - Pool mixed culture method for takifugu obscurus offspring seeds and paracanthobrama guichenoti offspring seeds - Google Patents
Pool mixed culture method for takifugu obscurus offspring seeds and paracanthobrama guichenoti offspring seeds Download PDFInfo
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- CN102524135A CN102524135A CN2012100358277A CN201210035827A CN102524135A CN 102524135 A CN102524135 A CN 102524135A CN 2012100358277 A CN2012100358277 A CN 2012100358277A CN 201210035827 A CN201210035827 A CN 201210035827A CN 102524135 A CN102524135 A CN 102524135A
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Abstract
The invention discloses a pool mixed culture method for takifugu obscurus offspring seeds and paracanthobrama guichenoti offspring seeds. Paracanthobrama guichenoti offspring seeds artificially propagated in early April and the takifugu obscurus offspring seeds bred at the end of April are placed into a pool for breeding to be subjected to the pool mixed culture; then, feeding steps of rotifers, blood worms and batch materials are adopted until the takifugu obscurus initial feed batch materials are directly adopted for feeding; and meanwhile, the whole culture process is subjected to daily management. The culture method for the takifugu obscurus offspring seeds provided by the invention does not have obvious differences from major culture on the culture specification, the unit yield, the survival rate and the like. Residue baits of the takifugu obscurus can be utilized by the paracanthobrama guichenoti on the basis of not increasing the feed cost or influencing the major culture varieties, a water quality purification effect is reached, in addition, the natural baits at the bottom layer of the water body can also be sufficiently eaten, the feed conversion rate is improved, the integral yield is improved, and great popularization values are realized. A new high-efficient large-scale culture path for brand-name and high-quality fishes such as takifugu obscurus offspring seeds and paracanthobrama guichenoti is successfully opened up.
Description
Technical field
The present invention relates to an obscure puffer thorn bream minnow fry and fingerlings like pond mixed cultivation techniques.
Background technology
Fugu obscurus (
Takifugu obscurus), be commonly called as the river Puffer, because of fast growth, being of high nutritive value enjoys favor, the Jiangsu, the Shanghai that have become from THE LOWER YANGTZE VALLEY expand to the good freshwater aquiculture kind that economize in Zhejiang, Anhui, Guangdong, Fujian, river, Henan, Hubei Province etc. at present.And like a thorn bream minnow (
Paracanthobrama? Guichenoti ), commonly known as rock carp, but also because meat tender and delicious, favored by consumers, and after Chinese Academy of Fishery Sciences Freshwater Fisheries Research Center research, has achieved the scale of the seed breeding, the Yangtze River is becoming a popular farmed species.
Therefore, the development of a seed with obscure puffer seems spines bream minnow pond hybrid seed cultivation technology, and actively respond efficiently scale fisheries policy, but also for other famous minnow like fish gill bream efficient exploration of the development of a large-scale new ways.
Summary of the invention
The present invention aims to provide a rational use of resources, improve feed conversion ratio seems obscure puffer thorn bream minnow fry and fingerlings pond mixed breeding methods.
The present invention adopts following technical scheme for realizing above-mentioned purpose:
One kind of Fugu obscurus bream minnow fry and fingerlings seems spines mixed cultivation pond method comprising the steps of:
(1) seed is put in a suitable place to breed:
Early April spawning by artificial insemination get bream minnow-like spines indoor hatching eggs through the system after hatching, with cooked egg yolk filtered through a 200 mesh sieve openings ,7-10 days feeding choice rotifer peak pond pond stocking density of 10,000 larvae / acre;
Fugu obscurus fry artificial breeding fry at the bottom of April, wheel animalcule opening and the preliminary white young eel material of food of taming and dociling through the greenhouse; Through 1 month growth, the fry specification reached 1.0 centimetres～1.5 centimetres/tail, can go out greenhouse Xia Tang, reduced indoor and the temperature difference outer pool, reduced the stress reaction of fry, increased survival rate, and breeding density is 12000 tail/mus;
(2) feedstuff feeding:
Like thorns bream minnow larvae xiatangji spilled milk and then began to cultivate rotifers, fertilizer cultivation; when obscure puffer fish pond after the previous week insisted spilled milk, followed by a few days is bloodworm opening match with Fugu obscurus material turns feeding, fish feeding as normal after stopping spilled milk, increase the quantity opening up direct switch Fugu obscurus opening batch;
(3) daily management:
Water quality is dense partially in spring, the once new water of filling in every month, and water injection rate is each 15 centimetres; It is moderate that the water concentration in summer, autumn keeps, and transparency is 35 centimetres, and index is tender, alive, refreshing, and whenever at a distance from the once new water of filling in 7～10 days, amount of water is each 10 centimetres; If water quality degenerates, should change water immediately and throw in biologic product regulation and control water quality, keep more than the water-soluble oxygen amount 6mg/L of pond, afternoon, the oxygenation of one o'clock to three was 2 hours, and oxygenation in morning was 2～3 hours in sultry day; To in time handle blue-green algae simultaneously, guard against the ammonia nitrogen poisoning and take place; For preventing fugu obscurus generation saprolegniasis, ich, high temperature season will strengthen quantity of exchanged water, opens aerator in good time, uses 0.4 mg/litre concentration chlorine dioxide full pool spilling head with sterilizing prevent disease every other month.
It is further characterized in that: said step (2) feedstuff feeding is selected apart from 1 meter of bank the food platform to be set around the pond, establishes 4 food platforms altogether for every mouthful, throw something and feed every day and sooner or later throw something and feed twice, morning 7:00-8:00, afternoon 4:00-5:00; " four fixed " principle is followed in the bait strictness of throwing something and feeding, and feeding volume is controlled to eat up in 1 hour and is as the criterion, and a general day feeding volume is 5～8% of the fry scale of construction, looks fish ingests, active situation suitably increases and decreases daily ration, feeding quantity.
The inventive method does not have notable difference to the forming specification of fugu obscurus fingerling, per unit area yield, survival rate etc. and main supporting.No increase in feed costs and do not affect the main support on the basis of yield, it seems spines bream minnow can not only use Fugu obscurus bait, reaching role in water purification, but also to the bottom of the water body adequately feeding natural food, improve feed conversion rate, increase aggregate output, great promotional value.Successfully opened Fugu obscurus seed, like the famous fish gill bream minnow efficient large-scale breeding of a new way.
Embodiment
One, cultivating condition and method
1) cultivating condition
The Tang Chi ridge is firm does not seep water, and near the water source, water quality is good.Central longitudinal is lower than at the bottom of the pond about 0.3 meter to digging a ditch in the pond for every mouthful of pool, and fish in the dried pond when being convenient to gather in the crops, the bottom micropore oxygenation of supporting aerator.Pool mouth is removed mud, behind the smooth Chi Geng through the air-dry solarization pool in winter; Put kind previous month, and intake 0.2 meter～0.3 meter, with quicklime clean up the pond (70～90 kilograms every mu); To remove wild fishes at the bottom of the pond and to kill causal organism, soaking disinfection drains and shines the pool after 3 days～4 days.Put in a suitable place to breed preceding 10 days, dark 1.2～1.3 meters of water filling, water inlet all is provided with 60 purpose bolting silks and prevents that wild fishes from getting into, and execute through 50～80 kilograms of the fertilizers of fermentation on every mouthful of pool.
2) seed is put in a suitable place to breed
By artificial spawning, fertilization seems spines bream minnow obtained by indoor hatching eggs hatching system, the use of cooked egg yolk filtered through a 200 mesh sieve openings ,7-10 days feeding choice rotifer peak pond pond stocking Larval density of 10,000 / acre.
Fugu obscurus fry artificial breeding fry, wheel animalcule opening and the preliminary white young eel material of food of taming and dociling through the greenhouse; Through 1 month growth, the fry specification reached 1.0 centimetres～1.5 centimetres/tail, can go out greenhouse Xia Tang, noted indoor and the temperature difference outer pool, reduced the stress reaction of fry, increased survival rate, and breeding density is 12000 tail/mus.
3) feedstuff feeding
Like thorns bream minnow larvae xiatangji spilled milk and then began to cultivate rotifers, fertilizer cultivation.Behind the pool under the fugu obscurus fry, just begun a week still to adhere to the soya-bean milk of splashing; Following several days is to throw something and feed in turn with " red worm " and fugu obscurus opening batch; Along with fry food stops the soya-bean milk of splashing after normal; Increase the opening material amount, until directly moving on to fugu obscurus opening batch (white young eel material).
Select apart from about bank 1m, to locate to be provided with according to a certain percentage the food platform around the pond, establish 4 food platforms altogether for every mouthful, throw something and feed twice every day, the time of throwing something and feeding normally is 7:00-8:00 in morning, afternoon 4:00-5:00.
Like thorns bream minnow fish are omnivorous, mainly early in the natural bait (benthos, bloodworm), tame food Takifugu obscurus also carried out similar thorn bream minnow fry tame food.In the ordinary course of things, the bait of throwing something and feeding wants strictness to follow " four fixed " principle, and a day feeding volume is 5～8% of the fry scale of construction, and feeding volume is controlled to eat up in 1 hour and is as the criterion, and will look also in addition fish ingests, active situation suitably increases and decreases daily ration, feeding quantity.
4) daily management
Water quality is dense partially in spring, the once new water of filling in every month, and water injection rate is each 15 centimetres; It is moderate that the water concentration in summer, autumn keeps, and transparency is 35 centimetres, and index is tender, alive, refreshing, and whenever at a distance from the once new water of filling in 7～10 days, amount of water is each 10 centimetres.If water quality degenerates, should change water immediately and throw in biologic product regulation and control water quality, keep the higher dissolved oxygen amount of pond water, afternoon, the oxygenation of one o'clock to three was 2 hours, and oxygenation in morning was 2～3 hours in sultry day.To in time handle blue-green algae simultaneously, guard against the ammonia nitrogen poisoning and take place.
Every morning and evening Xuntang 1, observe morning pond water color, water level changes, with or without floating head, etc., check Fugu obscurus and like thorns bream minnow without the occurrence of disease, etc.; evening focuses on fertility observed water, bait changes in the situation and decide whether to punch according to weather conditions, or open water aerator time.
Typhoon Eve, the storm caused a sharp upper and lower water layer convection, the water will cause hypoxia, causing Fugu obscurus and seems spines bream minnow floating head; pond blooms of phytoplankton, zooplankton dropped, it will also cause Fugu obscurus and similar floating head or pan gill bream minnow pool.Because of both equal lower oxygen concentration resistances not, when anoxic is serious in the pond, with oxygenation agent full pond float.
In the breeding process, like thorns bream minnow infection to disease than other fish, almost no disease.Fugu obscurus mainly contains saprolegniasis, ich etc., the policy that adhere to " putting prevention first and combining prevention with control " in the comparatively common disease of seed pond culture; Note careful management at ordinary times; Strengthen water quality management, particularly high temperature season because of dissolved oxygen, pH value in the pond descend, be prone to draw the dead fish in general pond; Therefore to strengthen quantity of exchanged water, open aerator in good time.In addition, use 0.4 mg/litre concentration chlorine dioxide full pool spilling head with sterilizing prevent disease every other month.
Two, fish for
When the water temperature is below 20 ℃ is considered obscure puffer fish carried into the greenhouse cultivation, fishing nets of 80 purpose polyethylene nets, pulling three networks and basic fishing Fugu obscurus after completion; rather like gill bream minnow pond dried up required catch, fishing using the longitudinal groove.
Three, culture efficiency
To the test two mouthfuls totally 8 mu pond fish for.After 5-6 months of careful breeding, bred Specification 80g / tail ~ 150g / tail Fugu obscurus quality fingerlings 4000 kg / mu, the survival rate of over 90%; 25g / tail ~ 60g / tail-like gill bream minnow species 3120 / mu, the survival rate was 31.2%, achieved good breeding efficiency.
As can be seen from the cultivation effect, the present invention provides methods of cultivating hybrid fry survival rate is high, high yield and integrated production, successfully opened Fugu obscurus seed, like the famous fish gill bream minnow efficient scale farming in a new way.
Through concrete embodiment the present invention is described in more details below.
Embodiment
4 mu of test pond open area, 1.7 meters of mean depth of water, central longitudinal is lower than at the bottom of the pond about 0.3 meter, 1 on supporting 8 inch water pumps, 2.5 kilowatts of aerators bottom micropore oxygenation to digging a ditch in the pond for every mouthful of pool.Pool mouth is removed mud through the air-dry solarization pool in winter, behind the smooth Chi Geng,
Put kind of a previous moon, intake 0.2 meter, clean up the pond (70 kilograms every mu) with quicklime, to remove wild fishes at the bottom of the pond and to kill causal organism, soaking disinfection drained and shines the pool after 3 days.Put in a suitable place to breed preceding 10 days, dark 1.2 meters of water filling, water inlet all is provided with 60 purpose bolting silks and prevents that wild fishes from getting into, and execute through 50 kilograms of the fertilizers of fermentation on every mouthful of pool.
April 3, 2011 by artificial spawning, fertilization seems spines bream minnow obtained by indoor hatching eggs hatching system, the use of cooked egg yolk filtered through a 200 mesh sieve openings feeding, 7 days xiatangji, stocking density 10,000 larvae / acre.
The fugu obscurus fry is an artificial breeding fry on April 15th, 2011, wheel animalcule opening and the preliminary white young eel material of food of taming and dociling through the greenhouse; Through 1 month growth, the fry specification reached 1.2 centimetres/tail, promptly went out greenhouse Xia Tang, and breeding density is 12000 tail/mus.
In addition, also can overlap the silver carp of supporting a small amount of filter-feeding, breeding density is 200 tail/mus.
Like thorns bream minnow larvae xiatangji spilled milk and then began to cultivate rotifers, fertilizer cultivation.Behind the pool under the fugu obscurus fry, just begun a week still to adhere to the soya-bean milk of splashing; Following several days is to throw something and feed in turn with " red worm " and fugu obscurus opening batch; Along with fry food stops the soya-bean milk of splashing after normal; Increase the opening material amount, until directly moving on to fugu obscurus opening batch (white young eel material).
Throw something and feed twice every day, the time of throwing something and feeding normally is 7:00 in morning, afternoon 4:00.
On October 25th, 2011 respectively to the test two mouthfuls totally 8 mu pond fish for.After six months of careful breeding, with a 80-mesh polyethylene fishing nets, pull the three networks and basic fishing Fugu obscurus after completion; rather like gill bream minnow be dry pond harvesting, using the longitudinal groove fishing.Fishing quality fish Fugu obscurus 4000 pounds / acre training and weighing 80g / tail ~ 150g / tail between the survival rate of 92%; 25g / tail ~ 60g / tail minnow-like spines bream fingerlings 3,120 / acre the survival rate was 31.2%, achieved good breeding efficiency.
The contrast experiment has been carried out in 4 mu of ponds in another next door.Experiment condition and embodiment 1 are much the same, and difference is: throwing in grows seedlings is merely the fugu obscurus fry.After the fugu obscurus fry is thrown in the pond, throw something and feed in turn with " red worm " and fugu obscurus opening batch, along with the fry food normal after, increase the opening material amount, until directly moving on to fugu obscurus opening batch (white young eel material).Simultaneously fugu obscurus is fished for embodiment, fish for 4030 jin of/mu trainings of fugu obscurus high-quality fingerling, body weight is between 90g/ tail～165g/ tail, and survival rate reaches 92.7%.
The result draws: mix cultivating forming specification to the fugu obscurus fingerling, per unit area yield, survival rate etc. does not have notable difference with main supporting.No increase in feed costs and do not affect the main support on the basis of yield, it seems spines bream minnow can not only use Fugu obscurus bait, reaching role in water purification, but also to the bottom of the water body adequately feeding natural food, improve feed conversion rate, increase aggregate output, great promotional value.Successfully opened Fugu obscurus seed, like the famous fish gill bream minnow efficient large-scale breeding of a new way.
Claims (2)
1 An obscure puffer thorn bream minnow fry and fingerlings like mixed cultivation pond method comprising the steps of:
(1) seed is put in a suitable place to breed:
Early April spawning by artificial insemination get bream minnow-like spines indoor hatching eggs through the system after hatching, with cooked egg yolk filtered through a 200 mesh sieve openings ,7-10 days feeding choice rotifer peak pond pond stocking density of 10,000 larvae / acre;
Fugu obscurus fry artificial breeding fry at the bottom of April, wheel animalcule opening and the preliminary white young eel material of food of taming and dociling through the greenhouse; Through 1 month growth, the fry specification reached 1.0 centimetres ~ 1.5 centimetres/tail, can go out greenhouse Xia Tang, reduced indoor and the temperature difference outer pool, reduced the stress reaction of fry, increased survival rate, and breeding density is 12000 tail/mus;
(2) feedstuff feeding:
Like thorns bream minnow larvae xiatangji spilled milk and then began to cultivate rotifers, fertilizer cultivation; when obscure puffer fish pond after the previous week insisted spilled milk, followed by a few days is bloodworm opening match with Fugu obscurus material turns feeding, fish feeding as normal after stopping spilled milk, increase the quantity opening up direct switch Fugu obscurus opening batch;
(3) daily management:
Water quality is dense partially in spring, the once new water of filling in every month, and water injection rate is each 15 centimetres; It is moderate that the water concentration in summer, autumn keeps, and transparency is 35 centimetres, and index is tender, alive, refreshing, and whenever at a distance from the once new water of filling in 7 ~ 10 days, amount of water is each 10 centimetres; If water quality degenerates, should change water immediately and throw in biologic product regulation and control water quality, keep more than the water-soluble oxygen amount 6mg/L of pond, afternoon, the oxygenation of one o'clock to three was 2 hours, and oxygenation in morning was 2～3 hours in sultry day; To in time handle blue-green algae simultaneously, guard against the ammonia nitrogen poisoning and take place; For preventing fugu obscurus generation saprolegniasis, ich, high temperature season will strengthen quantity of exchanged water, opens aerator in good time, uses 0.4 mg/litre concentration chlorine dioxide full pool spilling head with sterilizing prevent disease every other month.
(2) according to claim 1, wherein an obscure puffer thorn bream minnow fry and fingerlings like pond mixed breeding methods, wherein: said step (2) Select the feed fed around the pond at 1 m from the shore Set food units, a total of 4 per mouth fresh units, fed twice a day morning and evening feeding, 7:00-8:00 am, 4:00-5:00 pm; fed diets follow the "four" principles, ration control in one hour after eating, daily ration of fish body mass 5 to 8%, depending on the fish feeding, appropriate changes in the amount of feeding activity.
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN111387093A (en) * | 2020-04-21 | 2020-07-10 | 广西壮族自治区水产科学研究院 | Silver carp and bighead carp separated proliferation type reservoir water purification fishery culture method and culture system |
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| CN101032230A (en) * | 2006-03-09 | 2007-09-12 | 上海能正渔业科技开发有限公司 | Stepped culture selecting method for breeding fugu obscurus |
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Patent Citations (2)
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| CN101032230A (en) * | 2006-03-09 | 2007-09-12 | 上海能正渔业科技开发有限公司 | Stepped culture selecting method for breeding fugu obscurus |
| CN101032231A (en) * | 2006-03-09 | 2007-09-12 | 上海能正渔业科技开发有限公司 | Techniques for the artificial propagation and larval rearing of fugu obscurus |
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| 徐钢春等: "池养条件下似刺鳊鮈早期发育阶段的摄食与生长特性", 《动物学杂志》 * |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111387093A (en) * | 2020-04-21 | 2020-07-10 | 广西壮族自治区水产科学研究院 | Silver carp and bighead carp separated proliferation type reservoir water purification fishery culture method and culture system |
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