CN109169419A - The grass carp set meal method fed according to water body dissolved oxygen natural change law - Google Patents
The grass carp set meal method fed according to water body dissolved oxygen natural change law Download PDFInfo
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- A23K20/142—Amino acids; Derivatives thereof
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- A—HUMAN NECESSITIES
- A23—FOODS OR FOODSTUFFS; TREATMENT THEREOF, NOT COVERED BY OTHER CLASSES
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- A23K50/00—Feeding-stuffs specially adapted for particular animals
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Abstract
The invention discloses a kind of grass carp set meal methods fed according to water body dissolved oxygen natural change law, it is to determine that daily grass carp feeds set meal mode according to daily pond waters dissolved oxygen level height, the low dissolved oxygen period feeds low nutrient level feed, and the high dissolved oxygen period feeds high-plane of nutrition feed.The present invention proposes finishing period grass carp set meal mode, precisely meets the psychological need under grass carp difference physiological status according to pond whole day nature dissolved oxygen changing rule.Set meal mode of the present invention design rationally, the distribution of every meal feeding volume is also based on largely investigate statistical results on the basis of draw.The present invention directly observes the feeding situation of fish convenient for raiser, adjusts feeding amount in time, and the feed fed is eaten up by fish substantially, and residual bait is less, avoids feed investment from excessively leading to water pollution, ensure that the pure and fresh of cultivation water environment.The present invention can improve feed of grass carp utilization efficiency, reduce feed of grass carp coefficient, reduce aquaculture cost, improve cultivation comprehensive benefit.
Description
Technical field
The present invention relates to a kind of feeding methods of grass carp, and in particular to a kind of to be fed according to water body dissolved oxygen natural change law
Grass carp set meal method, belong to technical field of aquaculture.
Background technique
China is world aquaculture big country, and national 6147.24 thousand hectares of area of freshwater aquiculture in 2015, wherein pond is supported
2701.22 thousand hectares of area are grown, the 43.94% of the freshwater aquiculture gross area is accounted for, much higher than lake, reservoir, stream and other cultivation
Mode.2015,6699.65 ten thousand tons of national total aquatic product production, wherein 4937.90 ten thousand tons of cultured output, accounted for total output
73.70%.National 567.62 ten thousand tons of cultured output of grass carp in 2015, accounts for the 20.91% of large fresh water fish crop, in China's fresh water
It ranks first place in cultured fishes.As it can be seen that grass carp is the freshwater aquiculture kind to rank first place, pond culture is in current freshwater aquiculture
Mostly important form improves the efficiency of feed utilization of pond culture grass carp, and limited pond water area resource is made full use of to promote pond
The economic benefit of pool cultivation enhances numerous raisers and breeds fish enthusiasm with very important realistic meaning.
Feed cost often accounts for 70% or so of cultivation totle drilling cost, therefore the difference of feed coefficient influences most aquaculture cost
Greatly.Feed coefficient=whole year feedstuff feeding amount/whole year ration size fish net gain.Dissolved oxygen is the important life for influencing cultured fishes
One of state factor, fish are in the water body of supersaturated dissolved oxygen or low dissolved oxygen, and normal breathing, metabolism are likely occurred disorderly
Disorderly, the decline of fish amount, efficiency of food conversion is caused to reduce, slow growth.Pond as an independent ecosystem, by
Weather, human factor (feed intake, medication, open aerator etc.) and the movable influence of pond itself aquatile, pond waters dissolved oxygen
In dynamic change procedure.Studies have shown that pond dissolved oxygen peak appears in 15:00~17:00, minimum is on the left side 5:00
The right side generates a large amount of oxygen because phytoplankton photosynthesis is stronger in water when 15:00~17:00.
In production practices, the big multipotency of raiser instructs to feed according to the diurnal variation trend of dissolved oxygen in fish pond, most general at present
Time way be that whole day feeds same feed, totalizing method will substantially be fed day to every meal according to dissolved oxygen variation, but all more
Arbitrarily.If being fed when low dissolved oxygen excessive, it will aggravate fish digestive physiology burden, undigested nutriment is excreted to water
In, accelerate water eutrophication.At the same time, feeding volume is insufficient when leading to high dissolved oxygen, leads to cultivate feed of grass carp coefficient increasing,
The growth performance of cultivation grass carp cannot be played to greatest extent.
Publication No. CN104642236A, a kind of entitled cultivating system that feedstuff feeding is carried out according to water body dissolved oxygen amount
Chinese invention patent, disclose it is a kind of according to water body dissolved oxygen amount carry out feedstuff feeding cultivating system, comprising: display control mould
Block, Logic control module, EM equipment module, data acquisition module and GPRS transmission platform, the display control module include: to pass
Defeated channel, transmission control switch, the Logic control module includes: touch screen, programmable logic controller (PLC) and DVR, described
Data acquisition module include: water temperature detector, dissolution oxygen detection.
Publication No. CN104642230A, a kind of entitled Chinese invention of the combined type cultivation method of fresh water grass carp are special
Benefit discloses a kind of combined type cultivation method of fresh water grass carp, and the cultural method includes, based on fish weight, 2~50g grass
Fish feeds the feed of protein content >=32%, 1.0~2.0mm of partial size；50~250g grass carp, feed protein content 30~32%,
The feed of 2.0~3.0mm of partial size；250~750g grass carp feeds the feed of protein content 28~30%, 3.0~5.0mm of partial size；
Greater than 750g grass carp, the feed of protein content≤26%, 5.0~7.0mm of partial size is fed.The science of cultural method emphasis feed
It feeds, the feed for adapting to nutritional ingredient is equipped with according to the different growth phase of grass carp, meanwhile, the reasonable partial size for selecting feed,
Efficiently feeding for feed is not only realized, more solves existing grass carp materials mode and Feeding in Grass Carp habit, digestive physiology and battalion
The unmatched problem of metabolism is supported, is suitable for being widely used to promote.
Publication No. CN 105532547A, a kind of entitled Chinese invention of the timing feeding method of freshwater fish culturing are special
Benefit, discloses a kind of timing feeding method of freshwater fish culturing, and the method includes: to feed one in 8:00~10:30 daily
Secondary, 6:00~18:30 is fed once, feeds interval twice 8~8.5 hours.Feed the head of beginning three days, it is feeding for feeding total amount day
Grow the 2.5% of fish initial total weight；Increasing by a next day every three days later feeds total amount, and incrementss are previous next day to feed total amount
5%.Using method of the invention, under the premise of not increasing feedstuff feeding amount, it can effectively improve enteron aisle digestive enzyme activity, promote
Into growth, the oxidation resistance for improving feed efficiency, enhancing fish body, feed cost is reduced, to obtain preferable cultivation
Benefit.
The aquatic fish cultural method alternately fed is eaten/are satiated with food to Publication No. CN105557567A, a kind of entitled limit
Chinese invention patent provides a kind of limit and eats/be satiated with food and alternately feed mode using compensatory growth principle, can be improved fish pair
The utilization efficiency of feed reduces bait waste and the nitrogen discharge and phosphorus discharge as caused by residual bait, reduces environmental pollution, reduces aquaculture cost.
The limit, which eats-is satiated with food, alternately feeds strategy, can be improved the fish body of sturgeon or long-snout catfish to the utilization efficiency of feed, reduces nitrogen row
It puts；Fish body albumen, fat content are not influenced, can reduce the Fat Accumulation of internal organ, improving quality.
Above-mentioned documents are all about pond freshwater fish culturing method, and first is raised according to water body dissolved oxygen amount
Expect the cultivating system fed, stresses to define that is fed under different water body dissolved oxygen ranges feeds level in cultivating system.Second
Stress in the feed according to the different growth phase matching Different Nutrition ingredient of grass carp, while emphasizing the importance of feed particle diameter.
Third is a kind of timing feeding method of freshwater fish culturing, is fed twice daily, feeds interval twice 8~8.5 hours, for
It is carnivorous to have stomach fish fine.To most of no stomach fishes, this method is at all unworkable.4th is to utilize compensatory growth principle,
It provides a kind of limit to eat/be satiated with food and alternately feed mode, is only that water temperature is begun to ramp up after being directed to specific period such as the beginning of spring, fish starts to take the photograph
The feeding method of a period of time of food.Above-mentioned documents emphasize particularly on different fields, and are able to satisfy specific needs.
Be related to Feed selection or combination, Feeding time in terms of aqiuculrue feeding technology, feed number, feeding rate etc..Closely
Year, raiser increasingly paid attention to feeding technology, shadow of the feeding technology to feed coefficient under the guidance and demonstration of Feed Enterprise
The fact that sound is very big, such as common in the market, the close two mouthfuls of adjacent ponds A, B of pond condition, fingerling is identical, puts mould in a suitable place to breed
Formula is identical, feed is identical, water source is identical, feed coefficient difference 0.1~0.4.To find out its cause, may mainly feed and fodder tube
The difference of reason causes, continuously improve and optimize feeding technology to improve pond culture benefit it is significant.
Summary of the invention
The present invention is directed to pond culture grass carp finishing period feeding technology Shortcomings, accounts in foundation pond grass carp aquaculture cost
Bigger feed and electricity charge element, rationally making good use of pond freshwater fish culturing gold 5~September of growth period, (different latitude may
It is shorter or longer) pond day dissolved oxygen changing rule, pond dissolved oxygen changing rule is combined with dietary nutritional standard, provides one
The grass carp set meal mode and its application method that kind is fed according to pond waters dissolved oxygen changing rule reach the utilization for improving feed
Rate reduces feed coefficient, plays fish growth performance to greatest extent, shortens the culture-cycle, improves the purpose of composite culture benefit.
The present invention provides a kind of grass carp set meal method fed according to water body dissolved oxygen natural change law, to optimize pond grass
Fish feeding technology improves culture efficiency.
The present invention is implemented as follows:
The grass carp set meal method fed according to water body dissolved oxygen natural change law is according to daily pond waters dissolved oxygen level
Height determines that daily grass carp feeds set meal mode, and the low dissolved oxygen period feeds low nutrient level feed, and the high dissolved oxygen period feeds Gao Ying
Support horizontal feed.
Further scheme is:
The grass carp set meal method fed according to water body dissolved oxygen natural change law, specifically:
Four meal are fed daily, and morning 8:00~11:00 water body dissolved oxygen amount gradually rises but totality is still lower, and feed in the morning
First and second meal, the first and second meal feed low nutrient level feed；Afternoon, dissolved oxygen level persistently rose, and 15:00 peaks, and 19:
00 is still maintained at higher level, feeds third and fourth meal afternoon, third and fourth meal feeds high-plane of nutrition feed.
Further scheme is:
The grass carp set meal method fed according to water body dissolved oxygen natural change law is to be applied to pond grass carp to be bred as
Phase cultivation stages, i.e. grass carp weight 150g or more.
Further scheme is:
The grass carp set meal method fed according to water body dissolved oxygen natural change law is as follows:
The Feeding time of first, second, third and fourth meal is respectively 8:00,11:00,14:00 and 17:00, and the first and second meal is fed
Amount is that whole day feeds the 25~45% of total amount, third and fourth meal feeding volume is that whole day feeds the 55~75% of total amount.
Further scheme is:
The low nutrient level feed, including following raw materials in parts by weight: 18~32 parts of dregs of beans, rapeseed meal 12~
25 parts, 3~8 parts of corn protein powder, 5~10 parts of domestic DDGS, 4~12 parts of rice bran, 2~5 parts of soybean oil, 15~25 parts of flour,
1.5~2.5 parts of calcium dihydrogen phosphate, 0.15~0.3 part of 98.5% lysine, can sharp 0.01~0.03 part of health, vitamin premix
0.4 part, 2 parts of microelement pre-mix material, 0.12 part of mould inhibitor.Trophic level is crude protein 25~27%, and crude fat 3~4% relies
Propylhomoserin 1.0~1.2%.
The high-plane of nutrition feed, including following raw materials in parts by weight: 3~8 parts of powder of pork level-one, dregs of beans
15~26 parts, 10~25 parts of rapeseed meal, 3~8 parts of corn protein powder, 5~10 parts of domestic DDGS, 5~10 parts of rice bran, soybean oil 2~
5 parts, 15~25 parts of flour, 1.5~2.5 parts of calcium dihydrogen phosphate, 0.2~0.3 part of 98.5% lysine, can sharp health 0.01~0.03
Part, 0.4 part of vitamin premix, 2 parts of microelement pre-mix material, 0.12 part of mould inhibitor.Trophic level is crude protein 28~30%,
Crude fat 5%, lysine 1.3~1.5%.
It is of the present invention can sharp health can be produced for Beijing Sang Pu biochemistry corporation,Ltd..Main component is that carnitine etc. is protected
Liver protects gallbladder ingredient, has and promotes fat metabolism, prevents fatty liver, increases choleresis, keep biliary tract unimpeded, eliminates bile and becomes silted up
It is stagnant, strong liver cholagogic.
Vitamin premix of the present invention is that (such as Tongwei Co., Ltd. Sichuan premixes for conventional vitamin premix
Expect the omnivorefish vitamin premix of factory)；The microelement pre-mix material is conventional vitamin premix (such as logical prestige stock
The omnivorefish microelement pre-mix material of Sichuan premix factory of part Co., Ltd).
Low nutrient level feed and high-plane of nutrition feed are all buoyancy expanding in grass carp set meal mode of the present invention
Feed.According to grass carp different weight stage and weather condition, feeding rate is the 1~4% of grass carp weight.According to grass carp nature bore
It selects suitable particle diameter (feed suitable particle diameter ≈ nature bore × 25%), recommends partial size 2.0mm~7.0mm.
Bring advantageous effects of the present invention are as follows:
1, the present invention solve pond culture grass carp in the prior art account for it is leading in the case where, finishing period grass carp whole day is fed
The unmatched feature of grass carp digestive system digestion power under single feed, with natural dissolved oxygen changing rule.I.e. low dissolved oxygen period grass
Fish is in low stress situation, and the feed for high-plane of nutrition of ingesting aggravates its digestion burden, exacerbation stress, do not digested sufficiently
Feed is discharged into breeding water body, is aggravated water body burden, is increased water quality adjustment difficulty and cost input.Equally in high dissolved oxygen period grass
Fish physiological status is in best, and the items physiological function such as digestion and metabolism is also at most preferably, and ingesting low nutrient level feed cannot
Give full play to the growth potential of grass carp.Therefore the present invention proposes finishing period grass carp according to pond whole day nature dissolved oxygen changing rule
Set meal mode precisely meets the psychological need under grass carp difference physiological status.
2, grass carp set meal mode of the present invention feeds four meal daily, first (8 points of morning), the second meal (at 11 points in the morning) feeds low
Trophic level feed accounts for whole day feeds total amount 25~45%；Third (2 pm), the 4th meal (afternoon 5:00) feed Gao Ying
Horizontal feed is supported, accounts for whole day feeds total amount 55~75%.It feeds four meal raisers to be easily done, pond grass carp is daily at present
Feed 4 times more generally, rationally, the distribution of every meal feeding volume, which is also based on, largely investigates statistics knot for set meal mode design of the present invention
It is drawn on the basis of fruit.
3, the crude protein 25~27% of grass carp set meal mode low nutrient level feed of the present invention, crude fat 3~4% rely ammonia
Acid 1.0~1.2%；Slightly below grass carp finishing period dietary nutritional standard, for daily first meal (8:00), the second meal (11:00).
This period water body dissolved oxygen is gradually increasing, overall still lower, grass carp is in low stress situation, affects digestion, metabolic organ
The normal performance of function, digestive ferment hyposecretion.It is appropriate to reduce dietary nutritional standard, the control in conjunction with feeding volume, it can reduce grass
Fish is not thorough because digesting caused by digestive ferment hyposecretion, mitigates alimentary canal burden, is conducive to fish body health.
4, the crude protein 28~30% of grass carp set meal mode high-plane of nutrition feed of the present invention, crude fat 5%, lysine
1.3~1.5%, slightly above grass carp finishing period dietary nutritional standard, for third meal (2 pm), the 4th meal (afternoon 5:00).
This period water body dissolved oxygen has risen to higher level, and the ability of the digestive organs secretion digestive ferment of grass carp reaches best.It ingests height
The feed of trophic level had not only agreed with its digestive physiology demand, but also can overcome the disadvantages that the meal low nutrient level feed of the morning first and second is always sought
Support the deficiency of intake, it is ensured that Growth of Grass Carps Ctenopharyngodon Idellus speed is unaffected.High and low trophic level feed arrangement uses, and it is raw not influence grass carp
Under the premise of long performance, integrated culture cost, especially feed cost can be reduced to greatest extent, and it is latent to play its growth to greatest extent
Power improves the composite culture benefit of grass carp.
5, in feed of the present invention addition can Li Kang, can promote fat metabolism, effectively avoid finishing period grass carp fat liver problem.
6, all buoyancy expanding feeds of grass carp set meal mode feed of the present invention, buoyancy expanding feed is through high temperature high pressure process
Energy aging starch, the peptide bond of crack protein matter, convenient for being absorbed and utilized for grass carp.The feeding shape of fish is directly observed convenient for raiser
Condition adjusts feeding amount in time, and the feed fed is eaten up by fish substantially, and residual bait is less, and feed investment is avoided excessively to cause water quality dirty
Dye, ensure that the pure and fresh of cultivation water environment.
7, the present invention accounts for 80% or so of pond grass carp aquaculture cost for feed cost and the oxygenation electricity charge, utilizes from reasonable
Natural dissolved oxygen changing rule improves feed of grass carp utilization efficiency, reduces feed of grass carp coefficient, reduces aquaculture cost, improves cultivation
Comprehensive benefit.
Specific embodiment
Embodiment 1
A kind of grass carp set meal method fed according to water body dissolved oxygen natural change law, respectively in the morning 8:00 and 11:00
Low nutrient level feed is fed, afternoon, 2:00 and 5:00 fed high-plane of nutrition feed, and day feeding rate is 1~4%, low nutrition water
Flat feed dosage is that whole day feeds total amount 30%, and the feeding volume of high-plane of nutrition feed is that whole day feeds the 70% of total amount.
The grass carp set meal mode low nutrient level feed includes following raw materials in parts by weight: 25 parts of dregs of beans,
18 parts of rapeseed meal, 5 parts of corn protein powder, 8 parts of domestic DDGS, 9 parts of rice bran, 3 parts of soybean oil, 20 parts of flour, 2 parts of calcium dihydrogen phosphate,
98.5% 0.2 part of lysine, can sharp 0.02 part of health, 0.4 part of vitamin premix, 2 parts of microelement pre-mix material, mould inhibitor 0.12
Part.
High-plane of nutrition feed includes following raw materials in parts by weight in the grass carp set meal mode: powder of pork 5
Part, 22 parts of dregs of beans, 20 parts of rapeseed meal, 5 parts of corn protein powder, 8 parts of domestic DDGS, 8 parts of rice bran, 4 parts of soybean oil, 22 parts of flour, phosphorus
2 parts of acid dihydride calcium, 0.25 part of 98.5% lysine, can sharp 0.03 part of health, 0.4 part of vitamin premix, microelement pre-mix material 2
Part, 0.12 part of mould inhibitor.
Embodiment 2
A kind of grass carp set meal method fed according to water body dissolved oxygen natural change law, respectively in the morning 8:00 and 11:00
Low nutrient level feed is fed, afternoon, 2:00 and 5:00 fed high-plane of nutrition feed, and day feeding rate is 1~4%, low nutrition water
Flat feed dosage is that whole day feeds total amount 35%, and the feeding volume of high-plane of nutrition feed is that whole day feeds the 65% of total amount.
The grass carp set meal mode low nutrient level feed includes following raw materials in parts by weight: 23 parts of dregs of beans,
20 parts of rapeseed meal, 6 parts of corn protein powder, 9 parts of domestic DDGS, 6 parts of rice bran, 2.5 parts of soybean oil, 20 parts of flour, calcium dihydrogen phosphate 2
Part, 0.3 part of 98.5% lysine, can sharp 0.02 part of health, 0.4 part of vitamin premix, 2 parts of microelement pre-mix material, mould inhibitor
0.12 part.
High-plane of nutrition feed includes following raw materials in parts by weight in the grass carp set meal mode: powder of pork 4
Part, 18 parts of dregs of beans, 23 parts of rapeseed meal, 7 parts of corn protein powder, 8 parts of domestic DDGS, 10 parts of rice bran, 3.5 parts of soybean oil, flour 22
Part, 2 parts of calcium dihydrogen phosphate, 0.3 part of 98.5% lysine, can sharp 0.03 part of health, 0.4 part of vitamin premix, microelement it is pre-
2 parts of mixing, 0.12 part of mould inhibitor.
Embodiment 3
A kind of grass carp set meal method fed according to water body dissolved oxygen natural change law, respectively in the morning 8:00 and 11:00
Low nutrient level feed is fed, afternoon, 2:00 and 5:00 fed high-plane of nutrition feed, and day feeding rate is 1~4%, low nutrition water
Flat feed dosage is that whole day feeds total amount 40%, and the feeding volume of high-plane of nutrition feed is that whole day feeds the 60% of total amount.
The grass carp set meal mode low nutrient level feed includes following raw materials in parts by weight: 28 parts of dregs of beans,
15 parts of rapeseed meal, 4 parts of corn protein powder, 5 parts of domestic DDGS, 7 parts of rice bran, 3.5 parts of soybean oil, 22 parts of flour, calcium dihydrogen phosphate 2
Part, 0.25 part of 98.5% lysine, can sharp 0.03 part of health, 0.4 part of vitamin premix, 2 parts of microelement pre-mix material, mould inhibitor
0.12 part.
High-plane of nutrition feed includes following raw materials in parts by weight in the grass carp set meal mode: powder of pork 8
Part, 18 parts of dregs of beans, 22 parts of rapeseed meal, 4 parts of corn protein powder, 7 parts of domestic DDGS, 8 parts of rice bran, 4 parts of soybean oil, 20 parts of flour, phosphorus
2.5 parts of acid dihydride calcium, 0.3 part of 98.5% lysine, can sharp 0.03 part of health, 0.4 part of vitamin premix, microelement pre-mix material
2 parts, 0.12 part of mould inhibitor.
Embodiment 4
A kind of grass carp set meal method fed according to water body dissolved oxygen natural change law, respectively in the morning 8:00 and 11:00
Low nutrient level feed is fed, afternoon, 2:00 and 5:00 fed high-plane of nutrition feed, and day feeding rate is 1~4%, low nutrition water
Flat feed dosage is that whole day feeds total amount 45%, and the feeding volume of high-plane of nutrition feed is that whole day feeds the 55% of total amount.
The grass carp set meal mode low nutrient level feed includes following raw materials in parts by weight: 20 parts of dregs of beans,
20 parts of rapeseed meal, 6 parts of corn protein powder, 9 parts of domestic DDGS, 9 parts of rice bran, 3 parts of soybean oil, 21 parts of flour, calcium dihydrogen phosphate 2.5
Part, 0.3 part of 98.5% lysine, can sharp 0.02 part of health, 0.4 part of vitamin premix, 2 parts of microelement pre-mix material, mould inhibitor
0.12 part.
High-plane of nutrition feed includes following raw materials in parts by weight in the grass carp set meal mode: powder of pork 7
Part, 20 parts of dregs of beans, 18 parts of rapeseed meal, 5 parts of corn protein powder, 7 parts of domestic DDGS, 6 parts of rice bran, 5 parts of soybean oil, 22 parts of flour, phosphorus
2.5 parts of acid dihydride calcium, 0.25 part of 98.5% lysine, can sharp 0.03 part of health, 0.4 part of vitamin premix, trace element premix
2 parts, 0.12 part of mould inhibitor of material.
Embodiment 5
In order to more preferably illustrate advantages of the present invention, it is illustrated below with reference to culture experiment.
6 mouthfuls of the pond of logical 3.2~3.6 mu of prestige share proving ground is selected, mid-March is put by 105kg per acre and is weighed about
155g/ tail grass carp, grass carp all inject viral diseases vaccine.Two kinds of selection feeds mode, and one kind is 4 basis of the embodiment of the present invention
The grass carp set meal method that water body dissolved oxygen natural change law is fed is denoted as T as test group；Another feed formula is embodiment
Low nutrient level feed described in 4 kinds and high-plane of nutrition feed formula each 1/2 are produced, entirely by test group feed same process
It feeds, and day feeding rate is identical as test group, as a control group, is denoted as C.Oxygenator in pond power, device for feeding fish bait outfit are close, often
Kind materials mode sets 3 repetitions, supports to fish is sold successively by the end of September, makes 3 batches of testing materials during cultivation altogether, specification is respectively
3.0mm, 5.0mm and 7.0mm.
1 set meal of embodiment of the present invention mode of table and whole day feed a kind of normal mode of material to pond Growth of Grass Carps Ctenopharyngodon Idellus performance
It influences
As shown in Table 1, for test group (T) compared with control group (C), last weight, survival rate, the feed coefficient of grass carp are obvious excellent
In control group.Table 2 lists the economic efficiency contrast of test group and control group, using more incomes of grass carp per acre of the embodiment of the present invention
712 yuan, 40% or more is increased income than control mu.Secondly grass carp hepatopathy incidence also decreases, and dispensing is reduced, and cultivation grass carp is more strong
Health.
The normal mode that 2 set meal of embodiment of the present invention mode of table and whole day feed a kind of material imitates pond grass carp culturing economic
Benefit comparison
| Control group (C) | Test group (T, embodiment 4) | Effect | |
| Average product (pound/acre) | 2264 | 2345 | |
| Average fish weight gain (pound/acre) | 1589 | 1675 | + 86 pounds/acre |
| Feed coefficient | 1.67 | 1.58 | -0.09 |
| Hepatopathy (flower liver) disease incidence | 17% | 8% | Low 9 percentage points |
| The average electricity charge, expenses for medicine investment (member/mu) | 870 | 638 | - 232 yuan/mu |
| Jin fish weight gain feed cost (member/jin) | 3.92 | 3.74 | - 0.18 yuan/jin |
| Benefit of breeding fish (member/mu) | 1636 | 2348 | + 712 yuan/mu |
Remarks: hepatopathy disease incidence is that whether there is or not flower livers for 45 tail fish random samplings observation when selling fish.
Although reference be made herein to invention has been described for explanatory embodiment of the invention, and above-described embodiment is only this hair
Bright preferable embodiment, embodiment of the present invention are not limited by the above embodiments, it should be appreciated that those skilled in the art
Member can be designed that a lot of other modification and implementations, these modifications and implementations will fall in principle disclosed in the present application
Within scope and spirit.
Claims (8)
1. a kind of grass carp set meal method fed according to water body dissolved oxygen natural change law, it is characterised in that be according to daily pond
Water body dissolved oxygen level height determines that daily grass carp feeds set meal mode, and the low dissolved oxygen period feeds low nutrient level feed, high dissolved oxygen
Period feeds high-plane of nutrition feed.
2. the grass carp set meal method fed according to claim 1 according to water body dissolved oxygen natural change law, it is characterised in that
Specifically:
Feed four meal daily, morning 8:00~11:00 water body dissolved oxygen amount gradually rises but overall still lower, and feed the in the morning
One, two meal, the first and second meal feed low nutrient level feed；Afternoon, dissolved oxygen level persistently rose, and 15:00 peaks, 19:00
It is still maintained at higher level, feeds third and fourth meal afternoon, third and fourth meal feeds high-plane of nutrition feed.
3. the grass carp set meal method fed according to claim 2 according to water body dissolved oxygen natural change law, it is characterised in that:
The Feeding time of first, second, third and fourth meal is respectively 8:00,11:00,14:00 and 17:00, and the first and second meal feeding volume is
Whole day feeds the 25~45% of total amount, third and fourth meal feeding volume is that whole day feeds the 55~75% of total amount.
4. the grass carp set meal method fed according to Claims 2 or 3 according to water body dissolved oxygen natural change law, feature exist
In:
The low nutrient level feed, including following raw materials in parts by weight: 18~32 parts of dregs of beans, rapeseed meal 12~25
Part, 3~8 parts of corn protein powder, 5~10 parts of domestic DDGS, 4~12 parts of rice bran, 2~5 parts of soybean oil, 15~25 parts of flour, phosphorus
1.5~2.5 parts of acid dihydride calcium, 0.15~0.3 part of 98.5% lysine, can sharp 0.01~0.03 part of health, vitamin premix 0.4
Part, 2 parts of microelement pre-mix material, 0.12 part of mould inhibitor；Trophic level is crude protein 25~27%, and crude fat 3~4% relies ammonia
Acid 1.0~1.2%.
5. the grass carp set meal method fed according to Claims 2 or 3 according to water body dissolved oxygen natural change law, feature exist
In:
The high-plane of nutrition feed, including following raw materials in parts by weight: 3~8 parts of powder of pork level-one, dregs of beans 15~
26 parts, 10~25 parts of rapeseed meal, 3~8 parts of corn protein powder, 5~10 parts of domestic DDGS, 5~10 parts of rice bran, 2~5 parts of soybean oil,
15~25 parts of flour, 1.5~2.5 parts of calcium dihydrogen phosphate, 0.2~0.3 part of 98.5% lysine, can sharp 0.01~0.03 part of health,
0.4 part of vitamin premix, 2 parts of microelement pre-mix material, 0.12 part of mould inhibitor；Trophic level is crude protein 28~30%, slightly
Fat 5%, lysine 1.3~1.5%.
6. the grass carp set meal method fed according to Claims 2 or 3 according to water body dissolved oxygen natural change law, feature exist
In:
The low nutrient level feed and high-plane of nutrition feed are all buoyancy expanding feed, feeding rate be grass carp weight 1~
4%, suitable particle diameter is selected according to grass carp nature bore.
7. the grass carp set meal method fed according to claim 6 according to water body dissolved oxygen natural change law, it is characterised in that:
The partial size is 2.0mm~7.0mm.
8. the grass carp set meal method fed according to claim 1 according to water body dissolved oxygen natural change law, it is characterised in that:
The grass carp set meal method fed according to water body dissolved oxygen natural change law is to be applied to pond grass carp finishing period to support
It grows the stage, i.e. grass carp weight 150g or more.
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