CN104663551B - Breeding method for grass carp fingerlings - Google Patents
Breeding method for grass carp fingerlings Download PDFInfo
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- CN104663551B CN104663551B CN201510124162.0A CN201510124162A CN104663551B CN 104663551 B CN104663551 B CN 104663551B CN 201510124162 A CN201510124162 A CN 201510124162A CN 104663551 B CN104663551 B CN 104663551B
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Classifications
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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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- Life Sciences & Earth Sciences (AREA)
- Environmental Sciences (AREA)
- Farming Of Fish And Shellfish (AREA)
- Marine Sciences & Fisheries (AREA)
- Zoology (AREA)
- Animal Husbandry (AREA)
- Biodiversity & Conservation Biology (AREA)
- Fodder In General (AREA)
Abstract
The invention relates to the field of grass carp feeding, in particular to a breeding method for grass carp fingerlings. The method comprises the following steps: planting waterweeds in a cultivation pond for breeding the grass carp fingerlings, wherein the waterweeds comprise eel grass, hornwort and hydrilla varticillata; feeding fries in the cultivation pond with baits until the fries grow into the grass carp fingerlings. The breeding method for the grass carp fingerlings, provided by the invention, has the advantages that by planting the three waterweeds namely the eel grass, the hornwort and the hydrilla varticillata in the cultivation pond, the waterweeds interact with the grass carp fries in the growth process, the bred grass carp fingerlings are good in physique and exuberant in vitality, and the liver and gall syndrome cannot be caused in the growth process and the subsequent cultivation process.
Description
Technical field
The present invention relates to Ctenopharyngodon idellus raise field, in particular to a kind of breeding method of Grass carp.
Background technology
Ctenopharyngodon idellus are China's important cultivation fish products species, and hinterland Ctenopharyngodon idellus yield typically constitutes from the 40% of large fresh-water fishes total amount
Left and right.The Grass carp of abundant amount excellent quality, is the important guarantee realizing this general layout.
Ctenopharyngodon idellus liver and gallbladder syndrome is to lead the disease that foster Ctenopharyngodon idellus pond is common and harm is larger at present, is mainly in intensive culture high yield
The pool, main harm Grass carp and adult fish.Early May starts to cause Ctenopharyngodon idellus dead, the dead no obvious peak period of morbidity pond fish, but sick
Journey is longer, and it is high to repeat sickness rate；Depositing pool adult fish and the mortality rate of large size fingerling is higher than small dimension fingerling.Pond condition and bait
Material is identical, and breeding density is bigger, and mortality rate is higher, and treats compared with refractory, and because it is often accompanied by the symptoms such as gill rot, red skin, easily by mistake
Examine.
It has been investigated that, Ctenopharyngodon idellus liver and gallbladder syndrome morbidity Ctenopharyngodon idellus liver and gallbladder syndrome pathogenic factor is mostly raiser in cultivation
During cultivation density is continuously increased, to cause fish body matter to weaken sick for the factor such as water quality environment deteriorates, mismanagement.This disease occurs
Reason is more complicated, mainly has following three kinds of factors:
1. 1. raiser is reduces cost to feed factor, pursues low price simply using mixed feed, and nutrition in feedstuff becomes
Divide complete, vitamin content does not reach the demand of healthy fish growth, causes vitamin deficiency, produces disease of the liver；2. spring water temperature
Low, Ctenopharyngodon idellus metaboilic level is low, blindly increases daily ration, feeding quantity, makes the nutrient substance that Ctenopharyngodon idellus absorb exceed normal psychological need, leads
Cause Nutrition and Metabolism bad, fat and hepatopathy in body fat accumulation；3. take orally in pharmaceutical chemistry in prevention fish diseasess and be excessively added for a long time
Medicine.Do not note feedstuff keeping, feedstuff moldy metamorphism, the flavacin of feedstuff generation of the moldy metamorphism that makes moist and nitrato chemical combination
Thing etc. can produce disease of the liver；4. the nutritive index of feedstuff and cultivation object mismatch, and the nutritive index such as protein is too high.As with Carassius auratuss
Material grazes bream etc..
2. for many years using, non-desilting, at the bottom of pond mud is thickening, and pond shoals in environmental factorss pond；Pond water before July
Deep not enough, pond condition does not reach the requirement of intensive culture high yield, blindly increases breeding density and daily ration, feeding quantity, and water quality adjustment does not catch up with,
Pond environment is led to deteriorate；Frequently Drug abuse causes noxious substance accumulation in pond, makes Ctenopharyngodon idellus chronic poisoning damage liver.?
In adverse circumstances, Ctenopharyngodon idellus metabolism declines, and immunity weakens, and easy pathogen infection causes death.
3. drug factors are based on chemical drugss at present on fish disease prevention and cure, and the prolonged and repeated Use out of range of chemical drugss
Drug induced hepatic injury can be caused.As oxytetracycline, grace promise former part life-time service can cause hepatic injury；Chloromycetin life-time service can cause
Jaundice regulating liver-QI fatty infiltration, or even hepatic necrosis；Life-time service furazolidone, can make liver be badly damaged, hepatocellular degeneration necrosis,
Lead to fish body accumulation ascites etc., thus to accomplish on preventing and curing of fish disease to suit the remedy to the case, alternatively administered, it is to avoid be frequently excessively used medicine
Thing, particularly forbidden drugses.
Application No. 201410380422.6 discloses a kind of cultural method improving Ctenopharyngodon idellus quality, and the method is by joining
Conjunction feed collocation grass carries out mixing and feeds, and wherein, mixed feed also coordinates Chinese herbal and crude drugs preparationses to feed.But because Grass carp is in training
In educating, fry individuality used is little, Chinese herbal and crude drugs preparationses is absorbed not good, therefore, the method is not particularly suited for the cultivation of Grass carp.
In view of this, the special proposition present invention.
Content of the invention
It is an object of the invention to provide a kind of breeding method of Grass carp, it is excellent that the method cultivates the Grass carp quality obtaining
Good, be not in all the symptom of liver and gallbladder syndrome during early stage culture and during follow-up cultivation.
In order to realize the above-mentioned purpose of the present invention, spy employs the following technical solutions:
A kind of breeding method of Grass carp, cultivate Grass carp culturing pool in plant pasture and water, described pasture and water include Herba vallisneriae Spiralis,
Hornwort and hydrilla verticillata；
Bait is fed to the fry in described culturing pool, to growing up to Grass carp.
The breeding method of the Grass carp that the present invention provides, by plantation Herba vallisneriae Spiralis, hornwort and hydrilla verticillata in culturing pool
These three pasture and water, pasture and water and Ctenopharyngodon idellus Seedling interact in growth course, and the Grass carp body constitution that cultivation obtains is good, and vitality is prosperous
Contain, in growth course and be not in all liver and gallbladder syndrome in follow-up breeding process.
For the ease of managing and operating it is preferable that the area of described culturing pool is 2 mu -10 mu.
In order to provide broader living environment in growth course to Ctenopharyngodon idellus it is easy to the growth of Ctenopharyngodon idellus is it is preferable that described
The depth of culturing pool is not less than 2 meters, and at the bottom of pond is flat and mud is less than 30cm.Due to planting pasture and water in water body, and for water
The needs of grass growth, the thickness of at the bottom of pond mud is typically no less than 5cm.
Preferably, described culturing pool, before cultivating Grass carp, also includes: selects culturing pool, after described culturing pool does pond
Tan by the sun at the bottom of pond；Described culturing pool is sterilized after adding water, and then plants pasture and water.
Tanning by the sun at the bottom of pond is to accelerate the Organic substance in culturing pool bottom to decompose, making at the bottom of pond loosing soil, improve pond fertility,
And reduce disease.Culturing pool is typically chosen pond, if plan next year cultivates the pond of Grass carp, does pond in the winter time and tans by the sun at the bottom of pond.
In order to sufficiently reach the effect of at the bottom of pond of being exposed to the sun it is preferable that the natural law tanning by the sun at the bottom of pond is 10-20 days.
It is exposed to the sun after culturing pool, then add water 10cm-20cm select weather continuously the fine period is disappeared with the calculogenesis ashing clear pond of water
Poison.
For the ease of management, it is easy to the operation cultivated, culturing pool also should possess following condition: the water yield at water source is sufficient, water
Matter is good and meets water quality standard for fishery (gb 11607-1989) requirement；Enter discharge conduit unimpeded and set up separately；Road traffic side
Just, the pond ridge is intact.
In order that reach between pasture and water and Ctenopharyngodon idellus preferably working in coordination with reinforced effects it is preferable that described Herba vallisneriae Spiralis, hornwort and wheel
The cultivated area ratio of the black algae of leaf is 1-3:0.5-1.5:0.5-1.5.
It is highly preferred that the cultivated area ratio of described Herba vallisneriae Spiralis, hornwort and hydrilla verticillata is 1.5-2.5:1:1.
Most preferably, the cultivated area ratio of described Herba vallisneriae Spiralis, hornwort and hydrilla verticillata is 2:1:1.
In order to rationally utilize the space of culturing pool, and reach the more preferable interaction of pasture and water and fry it is ensured that fry
Healthy and helpful growth it is preferable that in described culturing pool, the breeding density of described fry is 4200 tail -5000 tails/mu.More
It is preferably 4500-4700 tail/mu.
In order that reach between pasture and water and Ctenopharyngodon idellus preferably working in coordination with reinforced effects it is preferable that the cultivated area of described pasture and water
Not less than the described culturing pool gross area 60%.
It is highly preferred that the cultivated area of described pasture and water is not less than the 80% of the described culturing pool gross area.
The metabolite of Ctenopharyngodon idellus and some remaining feed conversions, in growth course, can be cleaning of Ctenopharyngodon idellus by pasture and water
Growing environment；Pasture and water have certain effect to the holding of water temperature, are that the growth of Ctenopharyngodon idellus provides suitable temperature environment；
When carrying out photosynthesis, the oxygen of release provides the source of respiratory oxygen to pasture and water for Ctenopharyngodon idellus；And after the growth of Ctenopharyngodon idellus
Phase, the part bait of Ctenopharyngodon idellus is pasture and water, has not only saved feedstuff, has reduced aquaculture cost, and Ctenopharyngodon idellus eat part pasture and water, water
Grass provides more preferable nutritional labeling for Ctenopharyngodon idellus, and some the undesirable substance metabolism in Ctenopharyngodon idellus body are fallen, and makes Ctenopharyngodon idellus more preferable
Healthy growth.
Preferably, described fry is to feed bean milk breeding method with clear water to obtain, and the length of described fry is 2.5-
3.5cm.The fry body constitution that the method is cultivated is stronger, beneficial to transport, can adapt to more preferably and faster the growing environment in culturing pool.
Preferably, described fry is through intensive exercise before putting in a suitable place to breed to described culturing pool, the fry put in a suitable place to breed is in the same size,
Physique healthy and strong, anosis no wound, travelling rapid.
Fry in order to prevent from putting into raising in culturing pool carries other cause of disease materials, and fry is first carried out disinfection.Preferably
Ground, described fry is put in a suitable place to breed with after Operand sterilization.
In order that pasture and water preferably grow, further, the initial stage of described pasture and water, the water depth in described culturing pool are planted
Less than 30cm, the growth with pasture and water gradually fills filtered new water.
In general, start kind of (shifting) Ching Ming Festival around and plant pasture and water, Herba vallisneriae Spiralis can be sowed, and hornwort and hydrilla verticillata are because of it
High-volume seed source is difficult, so typically taking implantation method on producing, three kinds of pasture and water kinds (shifting) general substantially subregion when planting.
Herba vallisneriae Spiralis are planted in pond side, and then subregion is planted in water body for hornwort and hydrilla verticillata.
For the ease of the input of bait, further, when the depth of water of described culturing pool is 40cm-50cm, take for every 2 mu -3 mu
Build a bait table.
Preferably, described feed bait particularly as follows:
Early stage feeds rotten shape feedstuff, and the protein content of described gruel shape feedstuff is 26%-28%, every ten thousand tail fish day feeding volumes
0.5-1.0 kilogram, sooner or later respectively feed 1 time；
When described fry length is to 5.5-6.5cm, feed the pellet of diameter 1.3-1.7mm, protein content therein
For 25%-27%, day bait rate 8-12%, sooner or later respectively feed 1 time；
When described fry length is to 9.5-11cm, feed the pellet of diameter 1.8-2.2mm, protein content therein is
25%-27%, day bait rate 3%-5%, sooner or later respectively feed 1 time.
The feedstuff feeding is the feedstuff being commonly used in Ctenopharyngodon idellus seedling on market.Start pond of ingesting in fry growth to the later stage
Middle pasture and water, thrown feedstuff accordingly reduces.
During cultivating Grass carp, also carry out correspondingly feeding and management, particularly as follows:
Sooner or later patrol the pool daily, understand that pond pasture and water growth SEA LEVEL VARIATION and fry ingest and active situation；With fry
Growth, for keeping its preferable growing space, filling in every ten days once (10cm-20cm) new water；To correspond to day in period bait rate
Based on, feedstuff feeding amount is suitably increased or decreased according to Changes in weather situation；During 20 DEG C of water temperature, select the continuous sunny period,
With Operand or chlorine dioxide, pond waters are sterilized, typically monthly, until October terminates；Find fry ingest poor,
Travelling abnormal, when even dead occurring, reason should be analyzed rapidly, take effective ways to be solved.
After entering September, the pasture and water in fishpond are ingested and reduced by fingerlings, residual bait and feces after daily ration, feeding quantity increases in addition
Increase, lead to water gradually to be grown fat, plankton quantity increases, now, (Aristichthys nobiliss account for every mu of input 8cm-10cm flower silver carp fingerling
15%) 80 tail -100 tail.
Therefore, in order to be purified the water body in pond, to provide a kind of cleaner Grass carp growing environment, preferably
Ground, in the later stage of described fry rearing to Grass carp, every mu of described culturing pool throws in 8cm-10cm flower silver carp fingerling 80 tail -100 tail,
Wherein, the quantity of Aristichthys nobiliss accounts for the 10-20% of total flower silver carp fingerling.
Start graded kind divider lattice late Novenber and survive the winter in pond.
Compared with prior art, the invention has the benefit that
(1) breeding method of the Grass carp that the present invention provides, this several water of specific selection Herba vallisneriae Spiralis, hornwort and hydrilla verticillata
Grass, throws feedstuff simultaneously and is fed, and the Grass carp body constitution obtaining is good, and vitality is vigorous, in growth course and follow-up
It is not in all liver and gallbladder syndrome in breeding process；
(2) the also specific breeding density defining fry of the present invention, the cultivated area ratio of different pasture and water and pasture and water
Total cultivated area, to lift the quality of Grass carp further；
(3) present invention carries out disinfection also by the bottom of pond of being exposed to the sun, to Chi Zhongshui and from specific fry to reduce disease
Generation；
(4) present invention, also by the mode specifically feeding bait, is that the growth of fry provides sufficient nutrient substance；
(5) present invention in fry rearing to Grass carp, gradually grow fat by water, and plankton quantity increases, by throwing in one
The flower silver carp fingerling of fixed number amount, to purify to water body.
Specific embodiment
Below in conjunction with embodiment, embodiment of the present invention is described in detail, but those skilled in the art will
Understand, the following example is merely to illustrate the present invention, and be not construed as limiting the scope of the present invention.Unreceipted concrete in embodiment
Condition person, the condition according to normal condition or manufacturer's suggestion is carried out.Agents useful for same or the unreceipted production firm person of instrument, are
Can be by the conventional products of commercially available acquisition.
Embodiment 1
1st, pond condition and preparation:
The water yield at water source is sufficient, water quality is good and meets water quality standard for fishery (gb 11607-1989) requires；Enter drainage ditch
Road is unimpeded and sets up separately；Road traffic is convenient；2 mu every mouthful of pond area, the pond ridge is intact, high point water depth is not less than 2 meters, at the bottom of pond
Flat and mud is less than 30cm.
Do pond in the winter time and tan by the sun at the bottom of pond 10 days, then add water to depth of water 10cm-20cm and select weather continuously fine period use
Calculogenesis ashing water is cleaned up the pond sterilization；Start kind of (shifting) plant pasture and water, pasture and water have Herba vallisneriae Spiralis, hornwort and a hydrilla verticillata, three kinds before and after Clear and Bright
When pasture and water kind (shifting) is planted should substantially subregion, the cultivated area ratio of Herba vallisneriae Spiralis, hornwort and hydrilla verticillata is 1:0.5:0.5, each
Pond cultivated area is 60%；Plantation pasture and water initial stage water is less than 30cm, and the growth with pasture and water later gradually fills process
The new water of filter；During pool water within depth 40cm-50cm mid-May, build a bait table.
2nd, fry is originated and puts in a suitable place to breed
From the fry feeding the acquisition of bean milk breeding method with clear water, fry neat specification, specification 2.5-3cm, body constitution is good for
Strong, anosis no wound, travelling rapid, should be put in a suitable place to breed with after Operand sterilization, put 8400 in a suitable place to breed through sufficiently intensive exercise before putting in a suitable place to breed
Tail.
3rd, feedstuff with feed
Fry early stage is 28% with rotten shape feedstuff feeding, protein content, every ten thousand tail fish day feeding volumes 0.5-1.0 kilogram,
Sooner or later respectively feed 1 time；
When fry length is to 5.5-6.5cm, feed the pellet of diameter 1.3-1.7mm, protein content therein is
25%, day bait rate 8-12%, sooner or later respectively feed 1 time；
When fry length is to 9.5-11cm, feed the pellet of diameter 1.8-2.2mm, protein content therein is
25%, day bait rate 3%-5%, sooner or later respectively feed 1 time.
Carry out corresponding feeding and management in feeding process, specific as follows:
Sooner or later patrol the pool daily, understand that pond pasture and water growth SEA LEVEL VARIATION and fry ingest and active situation；With fry
Growth, for keeping its preferable growing space, filling in every ten days once (10cm-20cm) new water；To correspond to day in period bait rate
Based on, feedstuff feeding amount is suitably increased or decreased according to Changes in weather situation；During 20 DEG C of water temperature, select the continuous sunny period,
With Operand or chlorine dioxide, pond waters are sterilized, typically monthly, until October terminates；Find fry ingest poor,
Travelling abnormal, when even dead occurring, reason should be analyzed rapidly, take effective ways to be solved；After entering September, in fishpond
Pasture and water reduce because being ingested by fingerling, after daily ration, feeding quantity increases in addition, residual bait and feces increase, and lead to water gradually to be grown fat, and float
Trip biomass increases, and now can throw in 8cm-10cm flower silver carp fingerling (Aristichthys nobiliss account for 15%) 80 tail for every mu；Late Novenber opens
Beginning graded kind divider lattice survive the winter in pond.
Embodiment 2
1st, pond condition and preparation:
The water yield at water source is sufficient, water quality is good and meets water quality standard for fishery (gb 11607-1989) requires；Enter drainage ditch
Road is unimpeded and sets up separately；Road traffic is convenient；5 mu every mouthful of pond area, the pond ridge is intact, high point water depth is not less than 2 meters, at the bottom of pond
Flat and mud is less than 30cm.
Do pond in the winter time and tan by the sun at the bottom of pond 15 days, then add water to depth of water 10cm-20cm and select weather continuously fine period use
Calculogenesis ashing water is cleaned up the pond sterilization；Start kind of (shifting) plant pasture and water, pasture and water have Herba vallisneriae Spiralis, hornwort and a hydrilla verticillata, three kinds before and after Clear and Bright
When pasture and water kind (shifting) is planted should substantially subregion, the cultivated area ratio of Herba vallisneriae Spiralis, hornwort and hydrilla verticillata is 2:1:1, and pond is planted
Area is the 80% of the gross area；Plantation pasture and water initial stage water is less than 30cm, and the growth with pasture and water later can gradually fill warp
The new water filtering；During pool water within depth 40cm-50cm mid-May, build 2 bait table.
2nd, fry is originated and puts in a suitable place to breed
From the fry feeding the acquisition of bean milk breeding method with clear water, fry neat specification, specification 3-3.5cm, body constitution is good for
Strong, anosis no wound, travelling rapid, should be put in a suitable place to breed with after Operand sterilization, breeding density through sufficiently intensive exercise before putting in a suitable place to breed
For 9000 tails/mu.
3rd, feedstuff with feed
Fry early stage is 26% with rotten shape feedstuff feeding, protein content, every ten thousand tail fish day feeding volumes 0.5-1.0 kilogram,
Sooner or later respectively feed 1 time；
When fry length is to 5.5-6.5cm, feed the pellet of diameter 1.3-1.7mm, protein content therein is
25%, day bait rate 8-12%, sooner or later respectively feed 1 time；
When fry length is to 9.5-11cm, feed the pellet of diameter 1.8-2.2mm, protein content therein is
25%, day bait rate 3%-5%, sooner or later respectively feed 1 time.
Carry out corresponding feeding and management in feeding process, specific as follows:
Sooner or later patrol the pool daily, understand that pond pasture and water growth SEA LEVEL VARIATION and fry ingest and active situation；With fry
Growth, for keeping its preferable growing space, filling in every ten days once (10cm-20cm) new water；To correspond to day in period bait rate
Based on, feedstuff feeding amount is suitably increased or decreased according to Changes in weather situation；During 20 DEG C of water temperature, select the continuous sunny period,
With Operand or chlorine dioxide, pond waters are sterilized, typically monthly, until October terminates；Find fry ingest poor,
Travelling abnormal, when even dead occurring, reason should be analyzed rapidly, take effective ways to be solved；After entering September, in fishpond
Pasture and water reduce because being ingested by fingerling, after daily ration, feeding quantity increases in addition, residual bait and feces increase, and lead to water gradually to be grown fat, and float
Trip biomass increases, and now can throw in 8cm-10cm flower silver carp fingerling (Aristichthys nobiliss account for 10%) 100 tail for every mu；Late Novenber opens
Beginning graded kind divider lattice survive the winter in pond.
Embodiment 3
1st, pond condition and preparation:
The water yield at water source is sufficient, water quality is good and meets water quality standard for fishery (gb 11607-1989) requires；Enter drainage ditch
Road is unimpeded and sets up separately；Road traffic is convenient；Pond area is 10 mu, and the pond ridge is intact, high point water depth is not less than 2 meters, at the bottom of pond
Flat and mud is less than 30cm.
Do pond in the winter time and tan by the sun at the bottom of pond 20 days, then add water to depth of water 10cm-20cm and select weather continuously fine period use
Calculogenesis ashing water is cleaned up the pond sterilization；Start kind of (shifting) plant pasture and water, pasture and water have Herba vallisneriae Spiralis, hornwort and a hydrilla verticillata, three kinds before and after Clear and Bright
When pasture and water kind (shifting) is planted should substantially subregion, the cultivated area ratio of Herba vallisneriae Spiralis, hornwort and hydrilla verticillata is 3:1.5:1.5, pond
Cultivated area is the 85% of the gross area；Plantation pasture and water initial stage water is less than 30cm, and the growth with pasture and water later can gradually add
Note filtered new water；During pool water within depth 40cm-50cm mid-May, build a bait table for every 2 mu.
2nd, fry is originated and puts in a suitable place to breed
From the fry feeding the acquisition of bean milk breeding method with clear water, fry neat specification, specification 2.5-3.5cm, body constitution
Healthy and strong, anosis no wound, travelling rapid, should be put in a suitable place to breed with after Operand sterilization, put in a suitable place to breed close through sufficiently intensive exercise before putting in a suitable place to breed
Spend for 5000 tails/mu.
3rd, feedstuff with feed
Fry early stage is 27% with rotten shape feedstuff feeding, protein content, every ten thousand tail fish day feeding volumes 0.5-1.0 kilogram,
Sooner or later respectively feed 1 time；
When fry length is to 5.5-6.5cm, feed the pellet of diameter 1.3-1.7mm, protein content therein is
27%, day bait rate 8-12%, sooner or later respectively feed 1 time；
When fry length is to 9.5-11cm, feed the pellet of diameter 1.8-2.2mm, protein content therein is
27%, day bait rate 3%-5%, sooner or later respectively feed 1 time.
Carry out corresponding feeding and management in feeding process, specific as follows:
Sooner or later patrol the pool daily, understand that pond pasture and water growth SEA LEVEL VARIATION and fry ingest and active situation；With fry
Growth, for keeping its preferable growing space, filling in every ten days once (10cm-20cm) new water；To correspond to day in period bait rate
Based on, feedstuff feeding amount is suitably increased or decreased according to Changes in weather situation；During 20 DEG C of water temperature, select the continuous sunny period,
With Operand or chlorine dioxide, pond waters are sterilized, typically monthly, until October terminates；Find fry ingest poor,
Travelling abnormal, when even dead occurring, reason should be analyzed rapidly, take effective ways to be solved；After entering September, in fishpond
Pasture and water reduce because being ingested by fingerling, after daily ration, feeding quantity increases in addition, residual bait and feces increase, and lead to water gradually to be grown fat, and float
Trip biomass increases, and now can throw in 8cm-10cm flower silver carp fingerling (Aristichthys nobiliss account for 20%) 80 tail for every mu；Late Novenber opens
Beginning graded kind divider lattice survive the winter in pond.
Feedstuff used by embodiment 1-3 is all bought from regular Feed Manufacturing producer.
Embodiment 1-3 is cultivated the Grass carp obtaining, carries out Quality Detection, simultaneously with the Grass carp only with forage feed
As a control group, the result obtaining is as shown in table 1.
The Quality Detection of table 1 Grass carp
As it can be seen from table 1 the breeding method of Grass carp provided in an embodiment of the present invention, cultivate the Grass carp body constitution obtaining
Good, vitality is vigorous, in growth course and be not in all liver and gallbladder syndrome in follow-up breeding process.And only with raising
The Grass carp that material is fed, body constitution is weak, delay of response, and body colour is partially white, and build fertilizer is short, gradually dead in breeding process, and after
Continuous phenomenon Grass carp being cultivated again, death also easily, finds to dead Grass carp analysis, is that liver and gall are comprehensive
Disease.
Every mu of the breeding method of the Grass carp that the present invention provides can produce the high-quality Grass carp 400,000 of 40 grams -150 grams of cabrage
Grams -600 kilograms, 2000 yuan -3000 yuan of every mu of profit, create very big income.The training of the Grass carp being provided using the present invention
Educate cost used by method than the few 20%-30% of Grass carp only with forage feed, save cost.
Although illustrate and describing the present invention with specific embodiment, but it will be appreciated that without departing substantially from the present invention's
Many other changes can be made in the case of spirit and scope and change.It is, therefore, intended that in the following claims
Including all such changes and modifications belonging in the scope of the invention.
Claims (12)
1. a kind of breeding method of Grass carp is it is characterised in that plant pasture and water, described pasture and water in the culturing pool cultivating Grass carp
Including Herba vallisneriae Spiralis, hornwort and hydrilla verticillata；
Bait is fed to the fry in described culturing pool, to growing up to Grass carp；
The cultivated area ratio of described Herba vallisneriae Spiralis, hornwort and hydrilla verticillata is 1-3:0.5-1.5:0.5-1.5；
In described culturing pool, the breeding density of described fry is 4200 tails/mu -5000 tails/mu；
The cultivated area of described pasture and water is not less than the 60% of the described culturing pool gross area；
Described fry rearing to Grass carp later stage, every mu of described culturing pool throws in 8cm-10cm flower silver carp fingerling 80 tail -100
Tail, wherein, the quantity of Aristichthys nobiliss accounts for the 10-20% of total flower silver carp fingerling.
2. breeding method according to claim 1 it is characterised in that the depth of described culturing pool is not less than 2 meters, put down by the bottom of pond
Smooth and mud is less than 30cm.
3. breeding method according to claim 1 is it is characterised in that described culturing pool, before cultivating Grass carp, also wraps
Include: select culturing pool, described culturing pool tans by the sun at the bottom of pond after doing pond；Described culturing pool is sterilized after adding water, and then plants pasture and water.
4. breeding method according to claim 3 is it is characterised in that the natural law tanning by the sun at the bottom of pond is 10-20 days.
5. breeding method according to claim 1 it is characterised in that
The cultivated area ratio of described Herba vallisneriae Spiralis, hornwort and hydrilla verticillata is 1.5-2.5:1:1.
6. breeding method according to claim 1 is it is characterised in that the plantation of described Herba vallisneriae Spiralis, hornwort and hydrilla verticillata
Area ratio is 2:1:1.
7. breeding method according to claim 5 is it is characterised in that the cultivated area of described pasture and water is not less than described cultivation
The 80% of the pond gross area.
8. breeding method according to claim 1 is it is characterised in that described fry is to feed bean milk breeding method with clear water
Obtain, the length of described fry is 2.5-3.5cm.
9. breeding method according to claim 1 is it is characterised in that described fry warp before putting in a suitable place to breed to described culturing pool
Cross intensive exercise, the fry put in a suitable place to breed is in the same size, physique healthy and strong, anosis no wound, travelling rapid；
Described fry is put in a suitable place to breed with after Operand sterilization.
10. breeding method according to claim 1 is it is characterised in that plant the initial stage of described pasture and water, in described culturing pool
Water depth be less than 30cm, the growth with pasture and water gradually fills filtered new water.
11. breeding methods according to claim 10 it is characterised in that described culturing pool the depth of water be 40cm-50cm when,
Build a bait table for every 2 mu -3 mu.
12. breeding methods according to any one of claim 1-11 it is characterised in that described feed bait particularly as follows:
Early stage feeds rotten shape feedstuff, and the protein content of described gruel shape feedstuff is 26%-28%, every ten thousand tail fish day feeding volumes 0.5-
1.0 kilograms, sooner or later respectively feed 1 time；
When described fry length is to 5.5-6.5cm, feed the pellet of diameter 1.3-1.7mm, protein content therein is
25%-27%, day bait rate 8-12%, sooner or later respectively feed 1 time；
When described fry length is to 9.5-11cm, feed the pellet of diameter 1.8-2.2mm, protein content therein is
25%-27%, day bait rate 3%-5%, sooner or later respectively feed 1 time.
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| CN105409840A (en) * | 2015-11-24 | 2016-03-23 | 苏州市阳澄湖现代农业产业园特种水产养殖有限公司 | Breeding method of grass carp winter fingerlings |
| CN106577536A (en) * | 2016-12-20 | 2017-04-26 | 罗城仫佬族自治县金陆地种养农民专业合作社 | Cultivation method for preventing grass carp enteritis disease |
| CN106879503A (en) * | 2017-01-16 | 2017-06-23 | 陆川县品养殖专业合作社 | A kind of cultural method of anti-grass carp fish gill disease |
| CN109418116A (en) * | 2017-07-20 | 2019-03-05 | 杨永胜 | A kind of efficient cultivation method of rhizoma acori graminei |
| CN109247270B (en) * | 2018-08-07 | 2021-09-14 | 广东省实验动物监测所 | Method for rapidly screening small experimental fish to construct pancreatic fat infiltration model |
| CN109644911A (en) * | 2019-01-11 | 2019-04-19 | 广西壮族自治区水产科学研究院 | A kind of red claw crayfish-grass carp-hydrilla verticillata ecology synthesis breeding method |
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