CN106719143A - A kind of Pelteobagrus fulvidraco summer flower fingerling high-efficient method for cultivating - Google Patents
A kind of Pelteobagrus fulvidraco summer flower fingerling high-efficient method for cultivating Download PDFInfo
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- CN106719143A CN106719143A CN201611109237.9A CN201611109237A CN106719143A CN 106719143 A CN106719143 A CN 106719143A CN 201611109237 A CN201611109237 A CN 201611109237A CN 106719143 A CN106719143 A CN 106719143A
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- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01K—ANIMAL HUSBANDRY; CARE OF BIRDS, FISHES, INSECTS; FISHING; REARING OR BREEDING ANIMALS, NOT OTHERWISE PROVIDED FOR; NEW BREEDS OF ANIMALS
- A01K61/00—Culture of aquatic animals
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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
Abstract
The present invention provides a kind of Pelteobagrus fulvidraco summer flower fingerling high-efficient method for cultivating, comprises the following steps：1) pond is cultivated in selection；2) clean up the pond and sterilize；3) water quality management；4) fry is put in a suitable place to breed；5) management is fed；6) disease control；7) summer flower fingerling.The breeding method can effectively improve the abundance and persistence of Pelteobagrus fulvidraco summer flower nurture of fish fingerlings open-mouthed bait such as protozoan and wheel animalcule, improve summer flower nurture of fish fingerlings survival rate and be bred as coefficient of condition and the specification uniformity, be conducive to marketing, good in economic efficiency.
Description
Technical field
The invention belongs to aquaculture field, specifically, being related to a kind of Pelteobagrus fulvidraco summer flower fingerling high-efficient method for cultivating.
Background technology
Yellow forehead（Pronunciation：sǎng）Fish（Scientific name：Pelteobagrus fulvidraco）, it is Chang sections, Pelteobagrus fish.
Body is about 20cm, and the outside of belly is straight, and body is latter half of flat-sided, and caudal peduncle is more elongated.It is big and flat, kiss short, circle is blunt, and upper and lower jaw is slightly etc.
Long, mouth is big, the next, villous shape cingulum in two face and palatine bone.Eye is small, side position.Palpus 4 pairs, after nose palpus end can extend eye, the upper jaw
Palpus 1 pair, most long, chin or cheek palpus 2 pairs, must be short compared with the upper jaw.Body is exposed without squama, and side line is complete.Omnivorous, staple food bottom is dwelt toy, shrimp, water
Raw small insect and some invertebrates etc..4~May lays eggs, and parent population has the habit for graving to nest and protect offspring.
Pelteobagrus fulvidraco feeding habits be it is carnivorous based on ominivore-fish.Foraging activity is typically carried out at night, and food includes small
Fish, shrimp, various terrestrials and aquatic insect（Particularly chironomus larvas）, small flexible animal and other aquatic invertebrates.Have
When also prey on small fishes.Its feeding habits difference with environment and seasonal variations, often eats the fish of other fishes in spring and summer season
Ovum.
2013, probably in 240,000 t, wherein East China accounted for 160,000 t to national yellow-head catfish feed sales volume, and south China area accounts for 60,000 t,
Central China and other regions respectively account for 10,000 t.At present, south China area cultivation 100g/ tails yellow-head catfish feed cost for 6.3 ~ 7.5 yuan/
500g, East China is 5.1 ~ 6.0 yuan/500g, and Central China is 4.5 ~ 5.1 yuan/500g.
The Pelteobagrus fulvidraco pool of East China in 2013 head price is 11 yuan/500g；South China area price is 10 yuan/500g, if totle drilling cost
Calculated by 10 yuan/500g, the profit that 500g Pelteobagrus fulvidracos are supported by South China is 0.6 ~ 1.8 yuan/500g, and per mu yield is up to 2,500kg
Left and right, net profit is 3,000 ~ 9,000 yuan/mu；The profit that 500g Pelteobagrus fulvidracos are supported in East China is 1.8 ~ 2.7 yuan/500g, per mu yield
Up to 1,000kg or so, net profit is 3,600 ~ 5,400 yuan/mu；3.2 ~ 3.9 yuan of the profit of the foster 500g Pelteobagrus fulvidracos of Central China/
500g, up to 500kg or so, net profit is 3,200 ~ 3,900 yuan/mu for per mu yield.
Pelteobagrus fulvidraco is of high nutritive value, fast growth, adapts to environment and resistance against diseases is strong, easily raises, market demand
Greatly, just approved by numerous fishermen as the new excellent breed variety of fresh water, wide market.At present, because Pelteobagrus fulvidraco produces
, due to lacking corresponding corollary equipment and mature technology, fry culturing goes out that pool rate is extremely low for family, having or even be annihilated, and causes
Pelteobagrus fulvidraco summer flower fingerling was well sold and in short supply in recent years, held at high price.Pelteobagrus fulvidraco fry culturing technology is improved, especially pond rearing skill
Art, it is significant for extensive development Pelteobagrus fulvidraco cultivation.
For Pelteobagrus fulvidraco nurture of fish fingerlings, the current country is primarily present following patent document：
Patent publication No.：CN105660482A, discloses a kind of cultural method for improving fulvidraco larvae survival rate, including pond
Selection, cultivation bait, plantation pasture and water, fry throw foster, bait feeding, water quality management, daily management step, raising side of the invention
Forensic science rationally, using applying decomposed manure, improve pond waters oxygen content, water, cleaning food platform are changed in time, splash and kill
The methods such as bacterium medicine, it is ensured that and regulating water quality, effectively prevent Pelteobagrus fulvidraco common disease so that the weaker yellow forehead of juvenile stage constitution
The Immune-enhancing effect of fish, can be such that prelarva completes by the transition of endogenous tropholecithus to exogenous nutrition well, and nutrition is flat
Weighing apparatus, larvae survival rate is high, fast growth, with cultivation promotional value well.However, the patent is using special killing
Improvement of the bacterium medicine to Pelteobagrus fulvidraco breeding environment, and the feed of fulvidraco larvae is not improved, simply carried out from external environment
Immunity is adjusted, and be have ignored from internal factors such as diet, lifts DeGrain.
The content of the invention
To solve above-mentioned problem, it is an object of the invention to provide a kind of Pelteobagrus fulvidraco summer flower fingerling high effect culture side
Method, the breeding method can effectively improve Pelteobagrus fulvidraco summer flower nurture of fish fingerlings open-mouthed bait abundance, improve summer flower nurture of fish fingerlings and survive
Rate, incubation coefficient of condition and the specification uniformity, are conducive to marketing, good in economic efficiency.
To reach above-mentioned purpose, the technical scheme is that：
A kind of Pelteobagrus fulvidraco summer flower fingerling high-efficient method for cultivating, comprises the following steps：
1) pond is cultivated in selection
Cultivate 2 ~ 10hm of pond area2, pond depth >=1.8m, bottom of pond is stiff mud, and the ratio of slope is 1:3,24 ~ 32 DEG C of water temperature is molten in water
Solution oxygen >=5mg/L, water pH value is 7 ~ 8.5；
2) clean up the pond and sterilize
Pond is emptied, the depth of water is put to 0.5 ~ 0.7m, the mollusk such as spiral shell, freshwater mussel in snail killing agent of splashing killing pond, consumption is 7
~8kg/hm2, water placed after using snail killing agent and drains water in 7 ~ 10 days, and 0.2 ~ 0.4m of the depth of water is added water to again, with raw stone
Ash presses 1500 ~ 2250kg/hm2Usage amount add water dissolve into pulp-water after splash immediately, kill pond in wild fishes and bacterium；
3) water quality management
Added water after 5 ~ 7 days after the lime disinfection of pond, add water to 1 ~ 1.5m of the depth of water, 7 ~ 9kg/hm is added after being watered2Kill
Worm agent solution, full pool spilling head was detoxified every 1 day with humic acid solution or tartaric acid solution full pool spilling head, regulating water quality, after removing toxic substances
After adding base manure, water quality to cultivate 3 ~ 5 days every 1 day, visible linen small-sized cladocera is dragged for the dredger of 50 ~ 70 mesh；
Wherein, humic acid solution or tartaric acid solution are commercially available prod, and composition is shown in product description, are used by products instruction
Amount is used.Base manure used is commercially available prod, and main composition has amino acid Fertilizer water paste, biological organic fertilizer, excellent algae kind, and composition is shown in product
Specification, is used by products instruction consumption.
4) fry is put in a suitable place to breed
In the first tenday period of a month in May ~ early September, after water quality is cultivated 3 ~ 5 days, fine day is selected, in pond weather, put at 5 ~ 10m of bank
Seedling, advanced fry of yellow catfish specification is 0.8 ~ 1cm, breeding density 150 ~ 3,000,000 tails/hm2, 24 ~ 26 DEG C of water water temperature, put after seedling every 5 ~
Add water once within 7 days, more than 27 DEG C, once, each quantity of exchanged water is water total amount 5 ~ 10%, water transparency to water temperature for every water filling in 2 ~ 3 days
0.2 ~ 0.3m is kept, Dissolved Oxygen in Water >=5mg/L is kept, water pH value is 7 ~ 8.5；
5) management is fed
After fry is put in a suitable place to breed, once topdressed every 3 ~ 5 days, the product that topdresses is base manure, in addition, put after seedling to start within the 7th day to deliver
No. 3 pellets of Pelteobagrus fulvidraco commodity（It is commercially available prod）, pellet is broken into powder, and powder particle size 0.2mm, powder adds water and pinches
Fed into powder ball form, powder ball 8 ~ 10cm of diameter feeds mode using classification：
The first order：Feed powder ball the 1st ~ 5 day, feed 1.5 ~ 2m of spacing, feeding volume is the seedlings of 0.1 ~ 0.15kg/10 ten thousand, feeds 4 within one day
It is secondary, feed a length of 3 ~ 4 hours during interval；
The second level：Feed powder ball the 5th ~ 10 day, broken powder particle size is adjusted to 0.2mm, feed 4 ~ 5 meters of spacing, feeding volume is
The seedlings of 0.15 ~ 0.20kg/10 ten thousand, feed 4 times for one day, feed a length of 3 ~ 4 hours during interval；
The third level：Feed powder ball the 11st day, feed spacing and increase to 7 ~ 9 meters, feeding volume is the seedlings of 0.2 ~ 0.25kg/10 ten thousand, one day
Feed 3 times, Feeding time is spaced 4 hours；
The fourth stage：Fry put in a suitable place to breed after the 13rd ~ 15 day fry body it is long to 1.5cm when, set up food platform on pond side, feed a diameter of
No. 0 pellet of Pelteobagrus fulvidraco commodity of 0.5 ~ 1.5mm（It is commercially available prod）, feeding within one day 4 times, Feeding time is spaced 3 ~ 4 hours；
Level V：Treat that fry assembles to food platform to ingest, after feeding 6 ~ 8 days, feed within one day 2 powder ball feeds, powder ball diameter 8 ~
10cm, Feeding time is spaced 8 ~ 10 hours, and feeding volume is the seedlings of 0.1 ~ 0.15kg/10 ten thousand；
6th grade：After feeding 6 ~ 8 days, No. 0 pellet of Pelteobagrus fulvidraco commodity is fed completely, feed within one day 3 times, time interval 4 ~ 6
Hour, to be eaten up in 30 ~ 40min and be defined, feeding volume is 8 ~ 10%；
6) disease control
After fry puts 6 ~ 8 days in a suitable place to breed, fine day 9 is selected:00~11:00 with 2 ~ 3kg/hm2Copper sulfate solution is splashed；Fry puts 13 in a suitable place to breed ~
After 15 days, fine day 9 is selected:00~11:00 with 3 ~ 5kg/hm2Copper sulfate solution is splashed, opened immediately after splashing power for 2 ~
The aerator of 4kw, continuously opens 20 ~ 24h, prevents bacterium infection and balantidiasis；
7) summer flower fingerling
Fry cultivates into summer flower fingerling after putting in a suitable place to breed 25 ~ 30 days, body 2.5 ~ 3cm long, now may be selected to feed Pelteobagrus fulvidraco commodity expanded
Pellet（Commercially available prod）, feed particle diameter is 1.0 ~ 2.0mm, carries out large size fingerling cultivation or commodity fish culture.
Further, step 1) used by snail killing agent for go out spiral shell spirit, main component boron magnesium ore powder add 2% the methaldehyde
And synergist.
Wherein, the spiral shell spirit of going out is for commercially available prod, and that the mechanism of action is boron magnesium ore powder is slow to the killing action of oncomelania, hold
Long, addition acts on the relatively rapid methaldehyde and promotes oncomelania to open the synergist compounding of operculum, enhances spiral shell effect of going out.
Separately, step 3) add water during, wild fishes, fish-egg, trash fish etc. in the water inlet mesh mesh bag filter water of pipe sleeve 50 ~ 70.
Separately have, step 3) insecticide solution be 3.75 ~ 4.5kg/hm2Trichlorphon and 3.75 ~ 4.5kg/hm2
Copper sulphate mixing after add water the mixed solution to be formed.
Again, step 4) in, when 24 ~ 26 DEG C of water temperature, 1 ~ 1.2m of the depth of water that breeds fish fry puts seedling with the time interval 4 ~ 5 that adds water
My god（Because planktonic organism reproduction speed is slow when water temperature is low, the cultivation water quality time is long, and the depth of water is shallow to be conducive to water temperature to improve, but must not
Less than 1m, be conducive to keeping water body stabilization）；When 27 ~ 32 DEG C of water temperature, the depth of water that breeds fish fry keeps 1.3 ~ 1.5m, puts Miao Yujia
Water time interval 1 ~ 3 day（Because planktonic organism reproduction speed is fast when water temperature is high, the cultivation water quality time is short, and the depth of water is conducive to protecting deeply
Water holding body stabilizes and increases planktonic organism total amount, and the space for increasing fry activity）.
Further, step 4) in, when pond water temperature is 24 ~ 26 DEG C, the sun out puts seedling, 10 afterwards:00~16:Seedling is put between 00；
When pond water temperature is 27 ~ 32 DEG C, the sun out before puts seedling, morning 6:Seedling is put before 00.
And, step 4) in, it is the impeller automatic aerator of 2 ~ 4kw that distance is put 15 ~ 20m of seedling position and sets power, puts before seedling unlatching
24h, 24 ~ 26 DEG C of water temperature persistently opens 24h；27 ~ 32 DEG C of water temperature, opens 36 ~ 48h.
Separately, step 5) protein content in No. 0 pellet of No. 3 pellets of the Pelteobagrus fulvidraco commodity and Pelteobagrus fulvidraco commodity
Respectively 40 ~ 43wt%.
Separately have, step 5) in the first order, the second level and the daily Feeding time of the fourth stage be respectively morning 7:00th, the morning 10：
00th, afternoon 2:00 and afternoon 5:00；The daily Feeding time of the third level is morning 7:00th, the morning 11：00 and afternoon 5:00；Level V
Daily Feeding time is morning 7:00 and afternoon 5:00；6th grade of daily Feeding time is morning 7:00th, the morning 11:00 with
Noon 5:00.
Again, step 5) in, after the rich deficient fry of natural bait is put in a suitable place to breed in daily inspection fish body coefficient of condition and water, become according to water quality
Change situation, is topdressed, and condition of topdressing is as follows：When water transparency is more than 0.3m；Or drag for visible ash with the dredger of 60 mesh
The small-sized cladocera quantity of white is few；Or when seeing that fry moves about in one direction along pool side；Or fry when drawing a design head it is big
Shen Ti Of-thin, belly is put down partially, will be topdressed in time（The product that topdresses is commercial goods base manure, and by specification consumption is used）.
The beneficial effects of the present invention are：
A) mollusk such as spiral shell, freshwater mussel, reduces the large-scale aquatic animal in water body in special-purpose medicaments of splashing killing pond, reduces it
Its biological and fish competes living space, prevents it from striving food natural biological bait, dissolved oxygen and suction with fry in breeding process
Receive water body fertility；
B) quick lime used by is cleaned up the pond large usage quantity, and 100% is increased compared to normal usage, because as the pond culture time is more long,
Usually germ killing drugs used make bacterium produce drug resistance, by improve consumption on the one hand in close institute usually medication residual heavy metal
Ion, on the other hand supplements water body calcium ion；On the other hand with industrialization development, usually rainfall is most of to be presented acid, leads to
Crossing can improve water body alkalescence, stabilization water pH value using quick lime；
C) it is mixed to form insecticide solution using trichlorphon and copper sulphate after discharging water and kills the medium-and-large-sized cladocera of water body, oar foot
The aquatile such as class and aquatic insect, the microzooplankton because large-scale cladocera, Copepods and aquatic insect can ingest, makes
The clear Of-thin of Cheng Shuiti, form fry harmful organisms.After two kinds of medicines are killed more than, in cultivation initial-stage culture fry initial feed
（Zooplankter）It is relatively easy to；
D) more than impeller automatic aerator 48h is continuously opened before and after fry is placed, on the one hand can increases Dissolved Oxygen in Water, made molten
Solution oxygen（DO）It is continuously maintained in 5 mg/L ~ 9 mg/L；Unnecessary oxygen in water body can be stirred loss and gone out by another side by water body
Go, reduce the possibility that fry obtains bubble illness；
E) by supplementing man-made feeds（No. 0 pellet of No. 3 pellets of Pelteobagrus fulvidraco commodity and Pelteobagrus fulvidraco commodity）Method be
In order to supplement in time because natural bait is not enough, cause fry to ingest and differentiation occur, powerhouse is stronger, and weak person is weaker, influences fingerling
The overall specification uniformity, supplement artitificial food can ensure the abundance of bait, it is ensured that fingerling is fully taken food, and can improve into rate work
20%；
F) while scientific design feeds mode, mode is fed using classification, and when formulating each feeding volume, feeding interval and feed
Between, the science of realization feeds, and improves survival rate；
G) culture pond that the breeding method is selected, all requires to depth of water, the gradient, oxygen in water, water pH value, accords with
The existence requirement of Pelteobagrus fulvidraco is closed, using clean up the pond sterilization and the water quality management side of a kind of Pelteobagrus fulvidraco summer flower fingerling high-efficient method for cultivating
Method, can improve advanced fry of yellow catfish open-mouthed bait quantity, and the persistence for keeping bait；Using disinfectant and disinfection way, can have
Effect suppresses bacterium in water body；Using the mode that feeds of this method, supplement natural bait is not enough, improves summer flower nurture of fish fingerlings survival rate
With incubation coefficient of condition and the specification uniformity, Pelteobagrus fulvidraco summer flower fingerling can be obtained after cultivating 25 ~ 30 days, survival rate 75 ~ 85% is produced
240 ~ 260kg/ mus of amount, average body 2.5 ~ 3cm long, body size is uniform, and coefficient of condition is preferable.
Specific embodiment
With reference to specific embodiment, the present invention is described in detail.Following examples will be helpful to the technology of this area
Personnel further understand the present invention, but the invention is not limited in any way.It should be pointed out that to the ordinary skill of this area
For personnel, without departing from the inventive concept of the premise, various modifications and improvements can be made.These belong to the present invention
Protection domain.
A kind of Pelteobagrus fulvidraco summer flower fingerling high-efficient method for cultivating of the present invention, comprises the following steps：
1) pond is cultivated in selection
On May 13rd, 2016, one is selected to cultivate 8.9 mu of pond area, long 112 meters, wide 53 meters, pond depth 1.5m, bottom of pond is hard
Mud；
2) clean up the pond sterilization
On May 13rd, 2016 adds water to depth of water 0.7m after emptying pond, commodity snail killing agent of splashing go out spiral shell spirit kill pond in screw,
Freshwater mussel etc., drains water after placing 7 days, adds new water to depth of water 0.3m afterwards, then presses 2600kg/hm with quick lime2With quantization
Slurry is splashed, and kills wild fishes and bacterium；
3) water quality management
Add water within 7 days after the lime disinfection of pond, wild fishes, fish-egg, trash fish etc., add water in the water inlet mesh mesh bag filter water of pipe sleeve 60
To depth of water 1.1m, rear trichlorphon 3.8kg/hm is watered2With copper sulphate 3.8kg/hm2, the two hybridization water full pool spilling head,
The aquatiles such as water body medium-and-large-sized cladocera, Copepods and aquatic insect are killed, every 1 day with regulating water quality product humic acid solution
（Commercially available prod, composition is shown in product description, is used by products instruction consumption）Full pool spilling head is detoxified, after removing toxic substances every
Add commodity base manure within 1 day（Commercially available prod, main composition has amino acid Fertilizer water paste, biological organic fertilizer, excellent algae kind, and composition is shown in product
Specification, is used by products instruction consumption）, water quality cultivate 3 days after, dragged for the dredger of 60 mesh see it is linen small-sized
Cladocera, prepares to breed fish fry；
4) fry is put in a suitable place to breed
May 29, morning 8:00 opens 3kw impeller automatic aerators.May 30, weather is fine, 25 DEG C of water temperature, the morning 10：00 puts seedling,
The tail of hybridization advanced fry of yellow catfish 1,350,000 that specification is 0.9cm, 150,000 tails of breeding density/mu or so are delivered, after seedling is put and is opened impeller increasing
Oxygen machine 24h；
6) water quality management
June 2 carried out fertilizer, and commodity in use base manure, main composition has amino acid Fertilizer water paste（5L/ barrels of packaging）2 barrels, biological organic fertilizer
（10kg/ bags of packaging）2 bags, excellent algae kind（Packaging 500g/ bags）1 bag, added new water 5cm immediately after using fertilizer, supplement is new
Water source and algae kind, and open impeller automatic aerator 8h.June 9, June 16, June 23 respectively topdress 1 time, after topdressing every time
New water 5cm is added immediately.Whole fry culturing process carries out 4 times and topdresses, and keeps water transparency to maintain 0.2 ~ 0.3m, in water
Dissolved oxygen >=5mg/L, water pH value is 7 ~ 8.5；June 7, June 12, June 17, June 22, June 29 respectively add water 1
Secondary, amount of water is 10cm；Daily 12:00~16:00th, evening 10:00~6:00 opens aerator.
5) feed is fed
5 ~ June 8 June starts artificial dispensing Pelteobagrus fulvidraco No. 3 broken materials of pellet of commodity, crushes powder footpath 0.2mm, plus
Water stirring pinches into size 8 ~ 10cm cakes up to that can pinch agglomerating with hand, is delivered along the full pond in the side of a pond, apart from the outside 0.5m in the side of a pond,
Spacing 1.5m is fed, injected volume 1.4kg/, four times a day, the time is morning 7:00, the morning 10：00, afternoon 2:00, afternoon 5:
00, one day total feeding volume 5.6kg；1h, 2h are checked 2 times after having fed food every time, on the one hand check fish body coefficient of condition, are on the other hand seen
Fish material feeding situation is examined, feed is advisable to be eaten up in 2 h, is eaten up if less than 2h, illustrate that feeding volume is not enough, can suitably increased
Injected volume, each incrementss are in 0.1kg.
9 ~ June 14 June feed injected volume 1.8kg/, appropriate increasing is fed, spacing is changed to 2m, four times a day, time
It is morning 7:00, the morning 10：00, afternoon 2:00, afternoon 5:00, one day total feeding volume 5.6kg.1h, 2h inspection after food have been fed every time
Look into 2 times, on the one hand check fish body coefficient of condition, on the other hand observation fish material feeding situation, feed is advisable with being eaten up in 2h, if less than
2h just eats up, and illustrates that feeding volume is not enough, can appropriate shellfish increasing, each incrementss are in 0.1kg.
15 ~ June 21 June feed injected volume 2kg/, appropriate increasing is fed, spacing is changed to 4m, four times a day, time
It is morning 7:00, the morning 10：00, afternoon 2:00, afternoon 5:00, one day total feeding volume 8kg.1h, 2h check 2 after having fed food every time
It is secondary, fish body coefficient of condition is on the one hand checked, on the other hand observation fish material feeding situation, feed is advisable with being eaten up in 2h, if less than 2h
Just eat up, illustrate that feeding volume is not enough, can appropriate shellfish increasing, each incrementss now draw a design in 0.1kg.
22 ~ June 28 June broken powder increasing particle size, particle diameter adjustment is changed into 0.2 ~ 0.5mm, feed injected volume 2.5kg/
, appropriate increasing is fed, spacing is changed to 4m, and four times a day, the time is morning 7:00, the morning 10：00, afternoon 2:00, afternoon 5:
00, one day total feeding volume 10kg.1h, 2h are checked 2 times after having fed food every time, on the one hand check fish body coefficient of condition, are on the other hand seen
Fish material feeding situation is examined, feed is advisable to be eaten up in 2 h, is eaten up if less than 2h, illustrate that feeding volume is not enough, can suitably increased
Injected volume, each incrementss are in 0.1kg.June 23 carried out fingerling and draws a design, and fingerling specification is 1.5 ~ 1.7cm, and Burden-Swimming Ability of KM is very
By force.Visible fry ingests to the flat trip of the water surface when night is on duty.
June 24 built circular food platform, food platform diameter 6m.Food platform puts 0.5kg Pelteobagrus fulvidracos commodity 0 after putting up in food platform
Pellet, particle diameter 1mm, and clapped one's hands in each feeding, give the reflection of fingerling formation condition.Food platform feeds number of times and does not fix,
Can repeatedly feed, but at least keep 4 times, feeding time with feed powder time consistency.
Throwing feedstuff feeding amount with the increase of fingerling of coming to eat food, in food platform should suitably increase, with 30 ~ 40min eat up for
Preferably.Meanwhile, the broken powder ball of feed feeds and can not stop.With the increase of food platform feeding volume, powder ball feeding volume can be reduced accordingly, and
And spacing is fed for 8m, gradually drawn close to food platform position.
29 ~ July 2 June Pelteobagrus fulvidraco summer flower fingerling is most of to food in food platform, fingerling specification of drawing a design be 2.8 ~ 3cm,
Feed within one day 3 times, Feeding time morning 7:00th, the morning 11:00th, afternoon 5:00, feeding volume is 10 ~ 15kg/, and day feeds
40kg, feeding volume is 8 ~ 9%.
7) disease control
June 5 used 2.25kg/hm2Copper sulphate water full pool spilling head, opens impeller automatic aerator 8h after splashing；The use of June 19
3.75kg/hm2Copper sulphate water full pool spilling head, opens impeller automatic aerator 8h after splashing.Nurture of fish fingerlings overall process does not occur carefully
Bacterium property disease, effectively prevention bacterium infection and balantidiasis.
8) summer flower fingerling
Fry rearing is bred as summer flower fingerling after 30 days, July 4 carries out danish seine sale and large size fingerling, body of drawing a design are cultivated in point pool
A length of 2.8 ~ 3cm, neat specification body weight are 2180 tails/kg, and hybridization Pelteobagrus fulvidraco fingerling 500kg, survival rate 80.74% are obtained altogether.
It should be noted that the above embodiments are merely illustrative of the technical solutions of the present invention and it is unrestricted.Although with reference to compared with
Good embodiment has been described in detail to the present invention, it will be understood by those within the art that, can be to the technology of invention
Scheme is modified or equivalent, and without deviating from the scope of technical solution of the present invention, it all should cover in power of the invention
In sharp claimed range.
Claims (6)
1. a kind of Pelteobagrus fulvidraco summer flower fingerling high-efficient method for cultivating, it is characterised in that comprise the following steps：
Pond is cultivated in selection
Cultivate 2 ~ 10hm of pond area2, pond depth >=1.8m, bottom of pond is stiff mud, and the ratio of slope is 1:3,24 ~ 32 DEG C of water temperature dissolves in water
Oxygen >=5mg/L, water pH value is 7 ~ 8.5；
Clean up the pond and sterilize
Pond is emptied, the depth of water is put to 0.5 ~ 0.7m, the mollusk such as spiral shell, freshwater mussel in snail killing agent of splashing killing pond, consumption is 7
~8kg/hm2, water placed after using snail killing agent and drains water in 7 ~ 10 days, and 0.2 ~ 0.4m of the depth of water is added water to again, with raw stone
Ash presses 1500 ~ 2250kg/hm2Usage amount add water dissolve into pulp-water after splash immediately, kill pond in wild fishes and bacterium；
Water quality management
Added water after 5 ~ 7 days after the lime disinfection of pond, add water to 1 ~ 1.5m of the depth of water, 7 ~ 9kg/hm is added after being watered2Desinsection
Agent solution, full pool spilling head was detoxified every 1 day with humic acid solution or tartaric acid solution full pool spilling head, regulating water quality, after removing toxic substances every
After adding within 1 day base manure, water quality to cultivate 3 ~ 5 days, visible linen small-sized cladocera is dragged for the dredger of 50 ~ 70 mesh；
Fry is put in a suitable place to breed
In the first tenday period of a month in May ~ early September, after water quality is cultivated 3 ~ 5 days, fine day is selected, in pond weather, put at 5 ~ 10m of bank
Seedling, advanced fry of yellow catfish specification is 0.8 ~ 1cm, breeding density 150 ~ 3,000,000 tails/hm2, 24 ~ 26 DEG C of water water temperature, put after seedling every 5 ~
Add water once within 7 days, more than 27 DEG C, once, each quantity of exchanged water is water total amount 5 ~ 10%, water transparency to water temperature for every water filling in 2 ~ 3 days
0.2 ~ 0.3m is kept, Dissolved Oxygen in Water >=5mg/L is kept, water pH value is 7 ~ 8.5；
Feed management
After fry is put in a suitable place to breed, once topdressed every 3 ~ 5 days, the product that topdresses is base manure, in addition, put after seedling to start within the 7th day to deliver
No. 3 pellets of Pelteobagrus fulvidraco commodity, pellet is broken into powder, powder particle size 0.2mm, and powder adds water and pinches into the throwing of powder ball form
Hello, powder ball 8 ~ 10cm of diameter, mode is fed using classification：
The first order：Feed powder ball the 1st ~ 5 day, feed 1.5 ~ 2m of spacing, feeding volume is the seedlings of 0.1 ~ 0.15kg/10 ten thousand, feeds 4 within one day
It is secondary, feed a length of 3 ~ 4 hours during interval；
The second level：Feed powder ball the 5th ~ 10 day, broken powder particle size is adjusted to 0.2 ~ 0.5mm, feed 4 ~ 5 meters of spacing, feeding volume
It is the seedlings of 0.15 ~ 0.20kg/10 ten thousand, feeds within one day 4 times, feeds a length of 3 ~ 4 hours during interval；
The third level：Feed powder ball the 11st day, feed spacing and increase to 7 ~ 9 meters, feeding volume is the seedlings of 0.2 ~ 0.25kg/10 ten thousand, one day
Feed 3 times, Feeding time is spaced 4 hours；
The fourth stage：Fry put in a suitable place to breed after the 13rd ~ 15 day fry body it is long to 1.5cm when, set up food platform on pond side, feed a diameter of
No. 0 pellet of Pelteobagrus fulvidraco commodity of 0.5 ~ 1.5mm, feeds 4 times for one day, and Feeding time is spaced 3 ~ 4 hours；
Level V：Treat that fry assembles to food platform to ingest, after feeding 6 ~ 8 days, feed within one day 2 powder ball feeds, powder ball diameter 8 ~
10cm, Feeding time is spaced 8 ~ 10 hours, and feeding volume is the seedlings of 0.1 ~ 0.15kg/10 ten thousand；
6th grade：After feeding 6 ~ 8 days, No. 0 pellet of Pelteobagrus fulvidraco commodity is fed completely, feed within one day 3 times, time interval 4 ~ 6
Hour, to be eaten up in 30 ~ 40min and be defined, feeding volume is 8 ~ 10%；
Disease control
After fry puts 6 ~ 8 days in a suitable place to breed, fine day 9 is selected:00~11:00 with 2 ~ 3kg/hm2Copper sulfate solution is splashed；Fry puts 13 in a suitable place to breed ~
After 15 days, fine day 9 is selected:00~11:00 with 3 ~ 5kg/hm2Copper sulfate solution is splashed, opened immediately after splashing power for 2 ~
The aerator of 4kw, continuously opens 20 ~ 24h, prevents bacterium infection and balantidiasis；
Summer flower fingerling
Fry cultivates into summer flower fingerling after putting in a suitable place to breed 25 ~ 30 days, body 2.5 ~ 3cm long, now may be selected to feed Pelteobagrus fulvidraco commodity expanded
Pellet, feed particle diameter is 1.0 ~ 2.0mm, carries out large size fingerling cultivation or commodity fish culture.
2. a kind of Pelteobagrus fulvidraco summer flower fingerling high-efficient method for cultivating according to claim 1, it is characterised in that step 1) it is used
Snail killing agent is spiral shell spirit of going out, and main component boron magnesium ore powder adds 2% methaldehyde and synergist.
3. a kind of Pelteobagrus fulvidraco summer flower fingerling high-efficient method for cultivating according to claim 1, it is characterised in that step 3) it is described
Insecticide solution is 3.75 ~ 4.5kg/hm2Trichlorphon and 3.75 ~ 4.5kg/hm2Copper sulphate mixing after add water what is formed
Mixed solution.
4. a kind of Pelteobagrus fulvidraco summer flower fingerling high-efficient method for cultivating according to claim 1, it is characterised in that step 4) in,
When pond water temperature is 24 ~ 26 DEG C, the sun out puts seedling, 10 afterwards:00~16:Seedling is put between 00；When pond water temperature is 27 ~ 32 DEG C, too
Sun out before puts seedling, morning 6:Seedling is put before 00.
5. a kind of Pelteobagrus fulvidraco summer flower fingerling high-efficient method for cultivating according to claim 1 or 4, it is characterised in that step 4)
In, it is the impeller automatic aerator of 2 ~ 4kw that distance is put 15 ~ 20m of seedling position and sets power, puts before seedling and opens 24h, and 24 ~ 26 DEG C of water temperature is held
It is continuous to open 24h；27 ~ 32 DEG C of water temperature, opens 36 ~ 48h.
6. a kind of Pelteobagrus fulvidraco summer flower fingerling high-efficient method for cultivating according to claim 1, it is characterised in that step 5) in
One-level, the second level and the daily Feeding time of the fourth stage are respectively morning 7:00th, the morning 10：00th, afternoon 2:00 and afternoon 5:00；The
The daily Feeding time of three-level is morning 7:00th, the morning 11：00 and afternoon 5:00；The daily Feeding time of level V is morning 7:00
With afternoon 5:00；6th grade of daily Feeding time is morning 7:00th, the morning 11:00 and afternoon 5:00.
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| CN109673541A (en) * | 2019-01-09 | 2019-04-26 | 湖北太湖港水产产业技术研究院有限公司 | A kind of hybridization Pelteobagrus fulvidraco current year forms method |
| CN110915729A (en) * | 2019-12-12 | 2020-03-27 | 安徽省农业科学院水产研究所 | Method for improving cultivation survival rate of pelteobagrus fulvidraco fingerlings |
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Effective date of registration: 20210408 Address after: 215000 group 26, beilian village, Wujiang Economic and Technological Development Zone (Tongli town), Suzhou City, Jiangsu Province (rural residence) Patentee after: SUZHOU JUFU AQUATIC PRODUCTS Co.,Ltd. Address before: No.16, Xiaoshi Road, Luzhi Town, Wuzhong District, Suzhou City, Jiangsu Province Patentee before: SUZHOU AQUAFARM Co.,Ltd. |