CN104756914B - In a kind of aquaculture under Polyculture regulating water quality accurate combination feeding method - Google Patents
In a kind of aquaculture under Polyculture regulating water quality accurate combination feeding method Download PDFInfo
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- 238000009344 polyculture Methods 0.000 title claims abstract description 64
- 230000001105 regulatory effect Effects 0.000 title claims abstract description 29
- 238000009360 aquaculture Methods 0.000 title claims abstract description 23
- 244000144974 aquaculture Species 0.000 title claims abstract description 23
- 235000020905 low-protein-diet Nutrition 0.000 claims abstract description 55
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- CKUAXEQHGKSLHN-UHFFFAOYSA-N [C].[N] Chemical compound [C].[N] CKUAXEQHGKSLHN-UHFFFAOYSA-N 0.000 claims abstract description 19
- 102000004169 proteins and genes Human genes 0.000 claims description 40
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- 238000011084 recovery Methods 0.000 claims description 16
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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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- Feed For Specific Animals (AREA)
Abstract
The present invention relates to the accurate combination feeding method of regulating water quality under Polyculture in a kind of aquaculture, belong to technical field of aquaculture.The present invention includes that the Low protein diet collocation high of cultivation overall process is used, cultivation mid-term adjusts carbon-nitrogen ratio, cultivation later stage regulating water quality step, after feeding method of the invention, can be good at regulating water quality, bacillus and lactic acid bacteria turn into dominant bacteria in water body, feed can be fed down in the cultivation later stage, fish is more preferably grown faster, Shortening culturing period, increase production and improve productivity, reduce feed coefficient.
Description
Technical field
The present invention relates to a kind of feedstuff feeding method, it is more particularly related to raise together with mould in a kind of aquaculture
The accurate combination feeding method of regulating water quality, belongs to technical field of aquaculture under formula.
Background technology
One important developing direction of culture fishery is " raising together with ", and main Types have：Multiple types fish is raised together with, fishes and shrimps are mixed
Support, fish soft-shelled turtle is raised together with, ichthyophagy crab is raised together with.However, being proposed to feed formula, Feed Manufacturing and feedstuff feeding technology under Polyculture
New problem.
First it is feed formula offering question.In a pond, there are fish " raising together with " of Different Nutrition demand, nutritious
The very big fish of demand difference and shrimp etc. " raising together with ", set in dietary nutritional standard and are worked out with feed formula, for " raising together with " mould
Same pond under formula, at least need two kinds, even two or more feeds could meet needs, like this, same
It is accomplished by feeding two kinds or two or more feeds in individual pond.Under fishes and shrimps, ichthyophagy crab Polyculture, fish feed, Shrimp waste
The requirement of the granular size, water resisting time of feed is widely different, it is also desirable to feed two or more simultaneously in a pond
Grain feed.
At present, the feedstuff feeding under " raising together with " pattern needs to formulate the feeding method and technical regulation of " feed set meal ".
Namely need in a cultivating pool, while feeding two kinds or two or more feeds, various feed combinations feed and are exactly
" feed set meal " feeding method.
Feed combinations set meal, including same feed variable grain specification feed combined set meal, and variety classes raise
The combined set meal two ways of material.The combined set meal of variety classes feed, by two kinds or two or more feed combinations at one
Fed in pond, for example, be combined fish meal, shrimp feed or crab feed, fed in same pond and used.
The combined method of feedstuff feeding time, in same pond, by two kinds or two or more feeds when different
Between fed, that is, two kinds or two or more feeds are fed according to time order and function order.Feedstuff feeding place
Combined method, using two or the feedstuff feeding machine of more than two, carry out two kinds or two or more in different location respectively
Feedstuff feeding, this kind of method raise together with more suitable for fishes and shrimps, ichthyophagy crab.The result is that fish fish meal, Shrimp waste are taken the photograph
Food feed for shrimp and crab, ingests in different places respectively.
Existing feeding technology, mainly under Polyculture, first meet master breed fish, the growth needs of rare fish, greatly
Amount feeds high protein feed, its fast-growth, Shortening culturing period is listed as early as possible, reaches the purpose of maximum economic benefit.But
It is under such feeding and management condition, easily to ignore other growth needs for raising together with fish, causes cultivation later stage water body seriously to dislike
Change, reason is：1st, bacillus level of growth when carbon-nitrogen ratio is 15 is best.2nd, lactic acid bacteria gives birth to when carbon-nitrogen ratio is 15
Length is best.3 and we be familiar with being also that the vibrios of most headache is then grown when carbon-nitrogen ratio is five even lower best.
In pond when carbon-nitrogen ratio closer to ten when, bacillus and lactic acid bacteria are stronger to the inhibition of vibrios.If we
Adhere to that original mode that feeds is constant, vibrios turns into dominant bacteria in causing water body, and bacillus and lactobacter growth are subject to
Suppress, can reduce culture benefit on the contrary, increase fish and have an attack of one's old illness risk, cause bigger economic loss, that causes to lose more than gain is tight
Weight consequence.
State Intellectual Property Office discloses a Publication No. CN103348936A, entitled " one kind in 2013.10.16
The patent of invention of the cultural method of Squaliobarbus curriculus fingerling ", which disclose a kind of cultural method of Squaliobarbus curriculus fingerling, including as follows
Step：(1) fry rearing pond is manually sterilized with quick lime, injected clear water after sterilization, and discharge fermentation organic fertilizer cultivation
Water quality, dispensing Squaliobarbus curriculus fry is cultivated early stage and is starched using soya bean or man-made feeds nursing Squaliobarbus curriculus fry, and the cultivation later stage uses people
Work forage feed Squaliobarbus curriculus fry, obtains Squaliobarbus curriculus summer flower after cultivation；(2) fry culturing pond is manually disappeared with quick lime
Poison, injected clear water after sterilization, and fermentation organic fertilizer cultivation water quality is discharged, and Squaliobarbus curriculus summer flower is delivered, raise red using man-made feeds
Eye trout summer flower, after Squaliobarbus curriculus summer flower enters pond, delivers freshwater shrimp seed and is raised together with.The inventive method puts close in a suitable place to breed by cultivation fry
The control and use of degree are rational to raise together with mode, and using the man-made feeds nursing of high protein, substantially increases Squaliobarbus curriculus
The disease-resistant rate and survival rate of fingerling, and effectively raise the quality and survival rate of the fingerling of cultivation.
According to the existing side effect for feeding methods and its generation, especially in the middle and later periods of cultivation, such as wet weather
The substantial amounts of organic matters such as weather, harmful microorganism meeting amount reproduction, residual bait, excrement, biological corpse are decomposed, take off in a short time
Ammonia, consumes substantial amounts of dissolved oxygen, produces the harmful substances such as substantial amounts of hydrogen sulfide, ammonia nitrogen, cultured fishes is caused to poison, so that cruelly
Hair disease causes mortality.
The content of the invention
Present invention seek to address that feedstuff feeding method can make gemma in water body under aquaculture Polyculture in the prior art
Bacillus and lactobacter growth are suppressed, and harmful substance is also easy to produce in water body, the problem for causing to poison to cultured fishes, are carried
For the accurate combination feeding method of regulating water quality under Polyculture in a kind of aquaculture, bacillus and breast in water body can be made
Sour bacterium turns into dominant bacteria, and prevents the generation of harmful substance.
In order to realize foregoing invention purpose, its specific technical scheme is as follows：
In a kind of aquaculture under Polyculture regulating water quality accurate combination feeding method, it is characterised in that：Described
Feeding method is that, at daily noon, the every kind of feed to be fed in Polyculture is all fed using following methods：
The Low protein diet collocation high of A, cultivation overall process is used
In the cultivation overall process of Polyculture, the early stage high protein feed and later stage Low protein diet of all kinds feed are equal
Mix while feeding, and the weight ratio of early stage high protein feed and later stage Low protein diet is 1:1-1:3；
Early stage high protein feed of the invention refers to protein that juvenile period is used feed higher, and the later stage, low albumen was raised
Material refers to the relatively low feed of the protein for using in adult fish period.Above-mentioned feed refers to all kinds wanted needed for aquaculture
Feed, these feeds all for this area conventional feed.According to the difference of cultivation species, protein requirement differs greatly,
Those skilled in the art are aware that the protein content in every kind of cultivation product early stage high protein feed and later stage Low protein diet, and
Protein content high 1-2% of the protein content than described later stage Low protein diet in described early stage high protein feed.
B, cultivation mid-term adjustment carbon-nitrogen ratio
The cultivation mid-term of Polyculture, that is, when starting to have cultivated 4-5 month, by early stage high-protein feed and later stage low egg
The weight ratio of white matter feed is adjusted to 1:2-1:4；After keeping aforementioned proportion to feed one week, continuation feeds according to the ratio of step A；
C, cultivation later stage regulating water quality
The cultivation later stage of Polyculture, i.e., before fish at 1-2 month, water quality is adjusted, after waiting quality recovery,
All feed later stage Low protein diet 4 days, then proceed to according to step A and step B feed ratio alternately feed until
Fish.
Daily noon of the present invention refers to daily 13:00-14:00.
The present invention in stepb, in described one week, is fed by the 40-60% addition sucrose of feedstuff feeding amount daily.
In step C, described being adjusted to water quality refers to after stopping feeds feed once or only feeds to the present invention
Phase Low protein diet.
In step C, feedstuff feeding amount is the 70% of normal feeding volume to the present invention.
The present invention before quality recovery, presses the 40-60% addition sucrose of feedstuff feeding amount daily in step C.
In step C, the described ratio that feeds according to step A and step B alternately feeds until fish the present invention
Refer to feeding after ratio feeds 5 days according to step A, the ratio that feeds according still further to step B feeds 6 days, then proceedes to this frequently
Rate alternately feeds until fish.
The Advantageous Effects that the present invention brings：
1st, feedstuff feeding method can make gemma in water body under the present invention solves aquaculture Polyculture in the prior art
Bacillus and lactobacter growth are suppressed, and harmful substance is also easy to produce in water body, the problem for causing to poison to cultured fishes.Using this
After the feeding method of invention, can be good at regulating water quality, bacillus and lactic acid bacteria turn into dominant bacteria in water body, in cultivation
Later stage can feed down feed, fish is more preferably grown faster, and Shortening culturing period increases production and improves productivity, and reduce feed coefficient.
2nd, in step, the weight ratio of early stage high-protein feed and later stage low-protein feed is 1 to the present invention:1-1:
3.Part by weight is so set and disclosure satisfy that fish normal physiological needs, the proportion increase of later stage Low protein diet is to reduce
Some unnecessary forage proteins are wasted, and reduce the pollution of water body.
3rd, the present invention in stepb, the cultivation mid-term of Polyculture, that is, when starting cultivate individual month of 4-5, by early stage egg high
The weight ratio of white matter feed and later stage low-protein feed is adjusted to 1:2-1:4.So setting can effectively adjust the carbon of water body
Nitrogen ratio, bacillus and lactic acid bacteria turn into dominant bacteria in water body, reduce the energy supply of vibrios, indirectly inhibit vibrios
Growth.
4th, the method for step A of the present invention, step B and step C combines the rapid growth that both ensure that fish, and feeding is prevented again
It is unfavorable to fish growth that material albumen waste is polluted to water environment.Because front and rear phase feed collocation is using ensure that fish just
Normal physiological requirements, if feeding early-stage fodder always（High protein feed）, the adult fish phase can reduce to the demand of forage protein, cause
Waste, increase feeding cost；If feeding later stage feed always（Low protein diet）, individual somewhat a little bit smaller fish, feed
Nutrition do not reach the demand of fish, fish growth is slow, extends the culture-cycle, increases aquaculture cost.Front and rear phase feed collocation
Use, the especially use of later stage feed reduces the content of albumen, it is meant that the content of the carbon heightened, and increases carbon-nitrogen ratio
Greatly, it is favourable to the growth such as bacillus and lactic acid bacteria, be conducive to preventing the deterioration of water environment.
5th, currently preferred, daily noon refers to daily 13:00-14:00.Using this within the above-mentioned specific time
Invention is fed, and can more efficiently adjust carbon-nitrogen ratio in breeding water body, Water is in a relatively low level,
Quickly breeding turns into dominant microflora to be conducive to the beneficial bacteriums such as bacillus.
6th, the present invention is in step C, described that water quality is adjusted to refer to that stopping feeds feed once or only feeds
Later stage Low protein diet.The sugar source that sucrose is provided is polysaccharide, can directly be utilized by beneficial bacteriums such as bacillus and lactic acid bacterias, just
In its quick breeding, as beneficial bacterium, and vibrios can not directly utilize, and because of its necessary material of shortage growth, growth is suppressed,
Effectively prevent the generation of harmful substance.The method of above-mentioned regulating water quality can directly adjust carbon-nitrogen ratio in water body, Water source
Continuous decrease, can reach the effect of carbon-nitrogen ratio in regulation water body.
7th, currently preferred, in step C, feedstuff feeding amount is the 70% of normal feeding volume.So ensure that fish
Normal physiological requirements, and keep it to rob dyspepsia polarity, it is also possible to the ratio of nitrogen is reduced, increases the ratio of carbon.
8th, it is currently preferred, in step B and step C, fed by the 40-60% addition sucrose of feedstuff feeding amount daily.Sugarcane
The main purpose of sugar is to provide the necessary carbon source of bacterium normal growth, and it can be direct by beneficial bacteriums such as bacillus and lactic acid bacterias
Using and vibrios can not utilize, directly reduce the energy supply of vibrios, suppress the growth of vibrios.
9th, in step C, the described ratio that feeds according to step A and step B alternately feeds until going out the present invention
Fish refers to feeding after ratio feeds 5 days according to step A, and the ratio that feeds according still further to step B feeds 6 days, then proceedes to this
Frequency alternately feeds until fish.The replacing of this frequency, had both ensured the normal physiological requirements of fish, namely growth speed
Degree is guaranteed, and the rational Bacterial community of breeding water body has been ensured again.
Specific embodiment
Embodiment 1
In a kind of aquaculture under Polyculture regulating water quality accurate combination feeding method, described feeding method be
At daily noon, the every kind of feed to be fed in Polyculture is all fed using following methods：
The Low protein diet collocation high of A, cultivation overall process is used
In the cultivation overall process of Polyculture, the early stage high protein feed and later stage Low protein diet of all kinds feed are equal
Mix while feeding, and the weight ratio of early stage high protein feed and later stage Low protein diet is 1:1；
B, cultivation mid-term adjustment carbon-nitrogen ratio
The cultivation mid-term of Polyculture, that is, when starting to have cultivated 4 months, by early stage high-protein feed and later stage low albumen
The weight ratio of matter feed is adjusted to 1:2；After keeping aforementioned proportion to feed one week, continuation feeds according to the ratio of step A；
C, cultivation later stage regulating water quality
The cultivation later stage of Polyculture, i.e., when 1 month before fish, water quality is adjusted, after waiting quality recovery, entirely
Portion feeds later stage Low protein diet 4 days, then proceedes to alternately be fed until going out according to the ratio that feeds of step A and step B
Fish.
Embodiment 2
In a kind of aquaculture under Polyculture regulating water quality accurate combination feeding method, described feeding method be
At daily noon, the every kind of feed to be fed in Polyculture is all fed using following methods：
The Low protein diet collocation high of A, cultivation overall process is used
In the cultivation overall process of Polyculture, the early stage high protein feed and later stage Low protein diet of all kinds feed are equal
Mix while feeding, and the weight ratio of early stage high protein feed and later stage Low protein diet is 1:3；
B, cultivation mid-term adjustment carbon-nitrogen ratio
The cultivation mid-term of Polyculture, that is, when starting to have cultivated 5 months, by early stage high-protein feed and later stage low albumen
The weight ratio of matter feed is adjusted to 1:4；After keeping aforementioned proportion to feed one week, continuation feeds according to the ratio of step A；
C, cultivation later stage regulating water quality
The cultivation later stage of Polyculture, i.e., when 2 months before fish, water quality is adjusted, after waiting quality recovery, entirely
Portion feeds later stage Low protein diet 4 days, then proceedes to alternately be fed until going out according to the ratio that feeds of step A and step B
Fish.
Embodiment 3
In a kind of aquaculture under Polyculture regulating water quality accurate combination feeding method, described feeding method be
At daily noon, the every kind of feed to be fed in Polyculture is all fed using following methods：
The Low protein diet collocation high of A, cultivation overall process is used
In the cultivation overall process of Polyculture, the early stage high protein feed and later stage Low protein diet of all kinds feed are equal
Mix while feeding, and the weight ratio of early stage high protein feed and later stage Low protein diet is 1:2；
B, cultivation mid-term adjustment carbon-nitrogen ratio
The cultivation mid-term of Polyculture, that is, when starting to have cultivated 4.5 months, by early stage high-protein feed and later stage low egg
The weight ratio of white matter feed is adjusted to 1:3；After keeping aforementioned proportion to feed one week, continuation feeds according to the ratio of step A；
C, cultivation later stage regulating water quality
The cultivation later stage of Polyculture, i.e., when 1.5 months before fish, water quality is adjusted, after waiting quality recovery,
All feed later stage Low protein diet 4 days, then proceed to according to step A and step B feed ratio alternately feed until
Fish.
Embodiment 4
In a kind of aquaculture under Polyculture regulating water quality accurate combination feeding method, described feeding method be
At daily noon, the every kind of feed to be fed in Polyculture is all fed using following methods：
The Low protein diet collocation high of A, cultivation overall process is used
In the cultivation overall process of Polyculture, the early stage high protein feed and later stage Low protein diet of all kinds feed are equal
Mix while feeding, and the weight ratio of early stage high protein feed and later stage Low protein diet is 1:1.2；
B, cultivation mid-term adjustment carbon-nitrogen ratio
The cultivation mid-term of Polyculture, that is, when starting to have cultivated 4 months, by early stage high-protein feed and later stage low albumen
The weight ratio of matter feed is adjusted to 1:3.8；After keeping aforementioned proportion to feed one week, continuation feeds according to the ratio of step A；
C, cultivation later stage regulating water quality
The cultivation later stage of Polyculture, i.e., when 2 months before fish, water quality is adjusted, after waiting quality recovery, entirely
Portion feeds later stage Low protein diet 4 days, then proceedes to alternately be fed until going out according to the ratio that feeds of step A and step B
Fish.
Embodiment 5
On the basis of embodiment 1-4, preferably：
Described daily noon refers to daily 13:00.
In stepb, in described one week, fed by 40% addition sucrose of feedstuff feeding amount daily.
It is described that water quality is adjusted to refer to that stopping feeds feed once or only feeds later stage low egg in step C
White feed.
In step C, feedstuff feeding amount is the 70% of normal feeding volume.
In step C, before quality recovery, 40% addition sucrose of feedstuff feeding amount is pressed daily.
In step C, it is described according to step A and step B feed ratio alternately feed until fish refer to by
According to feeding after ratio feeds 5 days for step A, the ratio that feeds according still further to step B feeds 6 days, then proceedes to replace with this frequency
Feed until fish.
Embodiment 6
On the basis of embodiment 1-4, preferably：
Described daily noon refers to daily 14:00.
In stepb, in described one week, fed by 60% addition sucrose of feedstuff feeding amount daily.
It is described that water quality is adjusted to refer to that stopping feeds feed once or only feeds later stage low egg in step C
White feed.
In step C, feedstuff feeding amount is the 70% of normal feeding volume.
In step C, before quality recovery, 60% addition sucrose of feedstuff feeding amount is pressed daily.
In step C, it is described according to step A and step B feed ratio alternately feed until fish refer to by
According to feeding after ratio feeds 5 days for step A, the ratio that feeds according still further to step B feeds 6 days, then proceedes to replace with this frequency
Feed until fish.
Embodiment 7
On the basis of embodiment 1-4, preferably：
Described daily noon refers to daily 13:30.
In stepb, in described one week, fed by 50% addition sucrose of feedstuff feeding amount daily.
It is described that water quality is adjusted to refer to that stopping feeds feed once or only feeds later stage low egg in step C
White feed.
In step C, feedstuff feeding amount is the 70% of normal feeding volume.
In step C, before quality recovery, 50% addition sucrose of feedstuff feeding amount is pressed daily.
In step C, it is described according to step A and step B feed ratio alternately feed until fish refer to by
According to feeding after ratio feeds 5 days for step A, the ratio that feeds according still further to step B feeds 6 days, then proceedes to replace with this frequency
Feed until fish.
Embodiment 8
On the basis of embodiment 1-4, preferably：
Described daily noon refers to daily 13:50.
In stepb, in described one week, fed by 42% addition sucrose of feedstuff feeding amount daily.
It is described that water quality is adjusted to refer to that stopping feeds feed once or only feeds later stage low egg in step C
White feed.
In step C, feedstuff feeding amount is the 70% of normal feeding volume.
In step C, before quality recovery, 55% addition sucrose of feedstuff feeding amount is pressed daily.
In step C, it is described according to step A and step B feed ratio alternately feed until fish refer to by
According to feeding after ratio feeds 5 days for step A, the ratio that feeds according still further to step B feeds 6 days, then proceedes to replace with this frequency
Feed until fish.
Embodiment 9
In a kind of aquaculture under Polyculture regulating water quality accurate combination feeding method：
For multiple types fish is raised together with Polyculture, raising together with species includes：Grass carp, crucian raise together with or carp, crucian are raised together with,
Each cultured product will feed its corresponding all feeds, and the dietary protein level of every kind of cultured product is as follows：
1st, grass carp and crucian are raised together with：The protein content of early stage high protein feed is 28-30%；Later stage Low protein diet
Protein content is 27-29%；
2nd, carp and crucian are raised together with：The protein content of early stage high protein feed is 31-33%；Later stage Low protein diet
Protein content is 29-31%.
Described feeding method is that, at daily noon, the every kind of feed to be fed in Polyculture all uses following methods
Fed：
The Low protein diet collocation high of A, cultivation overall process is used
In the cultivation overall process of Polyculture, the early stage high protein feed and later stage Low protein diet of all kinds feed are equal
Mix while feeding, and the weight ratio of early stage high protein feed and later stage Low protein diet is 1:1-1:3；
B, cultivation mid-term adjustment carbon-nitrogen ratio
The cultivation mid-term of Polyculture, that is, when starting to have cultivated 4-5 month, by early stage high-protein feed and later stage low egg
The weight ratio of white matter feed is adjusted to 1:2-1:4；After keeping aforementioned proportion to feed one week, continuation feeds according to the ratio of step A；
C, cultivation later stage regulating water quality
The cultivation later stage of Polyculture, i.e., before fish at 1-2 month, water quality is adjusted, after waiting quality recovery,
All feed later stage Low protein diet 4 days, then proceed to according to step A and step B feed ratio alternately feed until
Fish.
There is obvious difference on culture efficiency than not adopting this method using this kind of feeding method, using the method
Feed coefficient reduces 0.1 than what is do not used afterwards, and the throwing feeding rate ratio for cultivating the later stage does not use method to increased 0.2.So contract
The short culture-cycle, increase production and improve productivity, reduce feed coefficient, the reduction of aquaculture cost.For raiser brings directly economic effect
Benefit.
Embodiment 10
In a kind of aquaculture under Polyculture regulating water quality accurate combination feeding method：
It is Fish-shrimp mix-culture in Polyculture, raising together with species includes：Penaeus Vannmei, Colossoma brachypomum are raised together with or South America is right in vain
Shrimp, mullet are raised together with, and each cultured product will feed its corresponding all feeds, and the feed protein of every kind of cultured product contains
Amount is as follows：
1st, Penaeus Vannmei, Colossoma brachypomum are raised together with：The protein content of early stage high protein feed is 36-38%；Later stage low egg
The protein content of white feed is 34-36%；
2nd, Penaeus Vannmei, mullet are raised together with：The protein content of early stage high protein feed is 36-38%；Later stage, low albumen was raised
The protein content of material is 34-36%.
Described feeding method is that, at daily noon, the every kind of feed to be fed in Polyculture all uses following methods
Fed：
The Low protein diet collocation high of A, cultivation overall process is used
In the cultivation overall process of Polyculture, the early stage high protein feed and later stage Low protein diet of all kinds feed are equal
Mix while feeding, and the weight ratio of early stage high protein feed and later stage Low protein diet is 1:1-1:3；
B, cultivation mid-term adjustment carbon-nitrogen ratio
The cultivation mid-term of Polyculture, that is, when starting to have cultivated 4-5 month, by early stage high-protein feed and later stage low egg
The weight ratio of white matter feed is adjusted to 1:2-1:4；After keeping aforementioned proportion to feed one week, continuation feeds according to the ratio of step A；
C, cultivation later stage regulating water quality
The cultivation later stage of Polyculture, i.e., before fish at 1-2 month, water quality is adjusted, after waiting quality recovery,
All feed later stage Low protein diet 4 days, then proceed to according to step A and step B feed ratio alternately feed until
Fish.
There is obvious difference on culture efficiency than not adopting this method using this kind of feeding method, using the method
Breeding water body transparency is than the 5cm that increased that does not use afterwards, and the beneficial bacterium such as surface breeding water body colony balance bacillus is big
There is not disease, reduces yuan/mu of drug cost 50 in amount breeding, culturing fish and shrimp, is that raiser brings directly economic effect
Benefit.
Embodiment 11
In a kind of aquaculture under Polyculture regulating water quality accurate combination feeding method：
For fish soft-shelled turtle is raised together with Polyculture, raising together with species includes：Grass carp, soft-shelled turtle raise together with or silver carp, soft-shelled turtle are raised together with, each breeding
Growing product will feed its corresponding all feeds, and the dietary protein level of every kind of cultured product is as follows：
1st, grass carp, soft-shelled turtle are raised together with：The protein content of early stage high protein feed is 45-47%；The albumen of later stage Low protein diet
Matter content is 43-45%；
2nd, silver carp, soft-shelled turtle are raised together with：The protein content of early stage high protein feed is 45-47%；The albumen of later stage Low protein diet
Matter content is 43-44%；
Described feeding method is that, at daily noon, the every kind of feed to be fed in Polyculture all uses following methods
Fed：
The Low protein diet collocation high of A, cultivation overall process is used
In the cultivation overall process of Polyculture, the early stage high protein feed and later stage Low protein diet of all kinds feed are equal
Mix while feeding, and the weight ratio of early stage high protein feed and later stage Low protein diet is 1:1-1:3；
B, cultivation mid-term adjustment carbon-nitrogen ratio
The cultivation mid-term of Polyculture, that is, when starting to have cultivated 4-5 month, by early stage high-protein feed and later stage low egg
The weight ratio of white matter feed is adjusted to 1:2-1:4；After keeping aforementioned proportion to feed one week, continuation feeds according to the ratio of step A；
C, cultivation later stage regulating water quality
The cultivation later stage of Polyculture, i.e., before fish at 1-2 month, water quality is adjusted, after waiting quality recovery,
All feed later stage Low protein diet 4 days, then proceed to according to step A and step B feed ratio alternately feed until
Fish.
There is obvious difference on culture efficiency than not adopting this method using this kind of feeding method, using the method
Feed coefficient reduces 0.12 than what is do not used afterwards, so shortens the culture-cycle, increases production and improves productivity, and reduces feed coefficient, raises
Low protein diet is fed, feed per ton can save 100 yuan, the reduction of aquaculture cost.For raiser brings direct economic benefit.
Embodiment 12
In a kind of aquaculture under Polyculture regulating water quality accurate combination feeding method：
For ichthyophagy crab is raised together with Polyculture, raising together with species includes：Grass carp, crab raise together with or crucian, crab are raised together with, each breeding
Growing product will feed its corresponding all feeds, and the dietary protein level of every kind of cultured product is as follows：
1st, grass carp, crab are raised together with：The protein content of early stage high protein feed is 28-30%；The albumen of later stage Low protein diet
Matter content is 27-29%；
2nd, crucian, crab are raised together with：The protein content of early stage high protein feed is 31-33%；The albumen of later stage Low protein diet
Matter content is 29-31%；
Described feeding method is that, at daily noon, the every kind of feed to be fed in Polyculture all uses following methods
Fed：
The Low protein diet collocation high of A, cultivation overall process is used
In the cultivation overall process of Polyculture, the early stage high protein feed and later stage Low protein diet of all kinds feed are equal
Mix while feeding, and the weight ratio of early stage high protein feed and later stage Low protein diet is 1:1-1:3；
B, cultivation mid-term adjustment carbon-nitrogen ratio
The cultivation mid-term of Polyculture, that is, when starting to have cultivated 4-5 month, by early stage high-protein feed and later stage low egg
The weight ratio of white matter feed is adjusted to 1:2-1:4；After keeping aforementioned proportion to feed one week, continuation feeds according to the ratio of step A；
C, cultivation later stage regulating water quality
The cultivation later stage of Polyculture, i.e., before fish at 1-2 month, water quality is adjusted, after waiting quality recovery,
All feed later stage Low protein diet 4 days, then proceed to according to step A and step B feed ratio alternately feed until
Fish.
There is obvious difference on culture efficiency than not adopting this method using this kind of feeding method, using the method
Feed coefficient reduces 0.1 than what is do not used afterwards, determines breeding water body Bacterial community and understands, using in water body after the method
Bacillus and lactic acid bacteria are do not use the method 2 times.Use this method can be saved for raiser feed cost and medication into
This, brings good economic benefit.
Claims (1)
1. in a kind of aquaculture under Polyculture regulating water quality accurate combination feeding method, it is characterised in that：Described throwing
The method of feeding is daily 13:00-14:00, the every kind of feed to be fed in Polyculture is all fed using following methods：
The Low protein diet collocation high of A, cultivation overall process is used
In the cultivation overall process of Polyculture, the early stage high protein feed and later stage Low protein diet of all kinds feed mix
Feed simultaneously together, it is preceding except the weight of cultivation mid-term adjustment early stage high-protein feed and later stage low-protein feed is than in addition to
The weight ratio of phase high protein feed and later stage Low protein diet is 1:1-1:3；
B, cultivation mid-term adjustment carbon-nitrogen ratio
The cultivation mid-term of Polyculture, that is, when starting to have cultivated 4-5 month, by early stage high-protein feed and later stage low-protein
The weight ratio of feed is adjusted to 1:2-1:4；After keeping aforementioned proportion to feed one week, continuation feeds according to the ratio of step A；It is described
One week in, daily by feedstuff feeding amount 40-60% addition sucrose feed；
C, cultivation later stage regulating water quality
The cultivation later stage of Polyculture, i.e., before fish at 1-2 month, water quality is adjusted, after waiting quality recovery, all
Feed later stage Low protein diet 4 days, then feeding after ratio feeds 5 days according to step A, ratio is fed according still further to step B
Feed 6 days, then proceed to alternately be fed with this frequency until fish；Described being adjusted to water quality refers to that stopping feeds
Feed once or only feeds later stage Low protein diet；Feedstuff feeding amount is the 70% of normal feeding volume；Before quality recovery, daily
Sucrose is added by the 40-60% of feedstuff feeding amount.
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