Background technology
Pelteobagrus fulvidraco (Pelteobagrus fulvidraco Rich) is under the jurisdiction of SILURIFORMES, Crocodylidae, Pelteobagrus fulvidraco genus, have another name called yellow loud, high-pitched sound, yellow Buddhist nun, Huang Lading etc., being distributed widely in China the Changjiang river, the Yellow River, the Zhujiang River and Heilongjiang river, is common small-sized fresh water bottom economic fish in the waters such as China's rivers, lake, reservoir, irrigation canals and ditches.
Natural Pelteobagrus fulvidraco belongs to the gentle carnivorous small fishes of bottom, and its edibility is higher, also has certain medical value.In recent years, along with the increase of people to the Pelteobagrus fulvidraco demand, wild Pelteobagrus fulvidraco can not have been satisfied the demand in market, and people begin to adopt agalactous method to culture Pelteobagrus fulvidraco.Pelteobagrus fulvidraco to the postlarva stage, behind its membrane 5 days, generally be to culture with the feed (as wheel animalcule, Copepods, chironomus larvas etc.) of yolk and so on, but the Pelteobagrus fulvidraco ubiquity aquaculture cost of propagating artificially is higher, fish bulk-growth speed is slow and the not high phenomenons of quality such as body colour is turned white, burnt hair by ingest zooplankter and artificial feeding.
Chinese invention patent 200610040418.0 " Yellow cartfish adult feedstuff " (the open date: on October 11st, 2006), " 200610040419.5 the feed of a kind of Pelteobagrus fulvidraco " (open date: all disclose a kind of body colour guarantor look that is used to realize Pelteobagrus fulvidraco on October 11st, 2006), thereby improve the artifical compound feed of its commercial value, wherein patent of invention " Yellow cartfish adult feedstuff " is by add cupric in feed, iron, manganese, the salt of zinc, patent of invention " feed of a kind of Pelteobagrus fulvidraco " are to reach the purpose of protecting look by a certain amount of corn protein powder of adding and shrimp shell meal in feed.The disclosed Pelteobagrus fulvidraco mixed feed of these two patents, patent of invention " Yellow cartfish adult feedstuff " is a fish meal 18%~26%, dregs of beans 12%~20%, the dish dregs of rice 6%~15%, cotton dregs 6%~12%, wheat bran 10%~16%, inferior powder 0%~15%, shrimp shell meal 2%~5%, corn protein powder 4v~10%, corn 4v~10%, soya-bean oil 1%, rape oil 1%, calcium dihydrogen phosphate 2%, additive 1%, patent of invention " feed of a kind of Pelteobagrus fulvidraco " is a fish meal 20%~30%, dregs of beans 10%~20%, the dish dregs of rice 5%~15%, cotton dregs 5%~10%, wheat bran 6%~18%, inferior powder 0%~10%, blood meal 0%~5%, shrimp shell meal 8%~10%, corn protein powder 5%~10%, corn 8%~10%, soya-bean oil 1%, rape oil 1%, calcium dihydrogen phosphate 2%, additive 1%, but it is when concrete the use, when particularly using, exist following deficiency in the area, Fujian:
1, fish meal is the favorite feedstuff of aquatic livestock.Pelteobagrus fulvidraco belongs to the bottom predacious fish, likes the feed of ingestion animal, and the content of fish meal is on the low side in the above-mentioned patent, has reduced protein and amino acid whose content in the feed, and the attractant of feed is had certain influence.
2, Fujian belongs to the deficient relatively area of agricultural resource, raw materials such as the dish dregs of rice are less relatively, the fish culture enterprise in area, Fujian generally all selects the processing byproduct (as brewer's yeast, flour etc.) of the enterprises engaged in processing agricultural products (as beer enterprise, grain and oil enterprise etc.) suitable, that price is low relatively, that the quantity quality is secure to be used as the breeding feed raw material of fish nearby, thereby reaches the purpose that reduces cost.
3, above-mentioned patent is main by soya-bean oil, rape oil to providing of fish energy is provided, but the content of contained unrighted acid is on the low side in the soya-bean oil, rape oil, a little less than energy provides.
4, traditional mixed feed is bigger to the pollution of breeding water body, and it is relatively poor to culture digesting and assimilating of fish.And emerging expanded pellet feed because have that production cost is low, digestive utilization ratio is high, aquaculture cost is low, to breeding water body pollute less, advantage such as raw material source is extensive, demonstrate huge market potential gradually in the fish feed field.
In a word, though protecting on the look in the Pelteobagrus fulvidraco body colour, the foregoing invention patent has certain effect, but aspect the contaminative of the growth performance of culturing the fish body, breeding water body certain deficiency is being arranged, the breed user in area, Fujian relatively particularly, its production cost is higher, aquaculture cost is also higher.
Summary of the invention
The cost that the object of the present invention is to provide a kind of production cost integral body lower, Pelteobagrus fulvidraco when using to culture is also lower, and the higher swelling granular mixed feed for postlarva of pelteobagrus fulvidraco that is suitable for Pelteobagrus fulvidraco postlarva stage breeding of the Pelteobagrus fulvidraco quality of culturing out.
For achieving the above object, the present invention is suitable for feeding the Pelteobagrus fulvidraco in postlarva stage, be that body weight restrains to the Pelteobagrus fulvidraco in the postlarva stages of 2 grams 0.2, it is a kind of mixture of being made by the processing method of expanded pellet feed by each raw material components, and its each raw material components and content comprise:
Fish meal 50%~55%
Flour 18.48%~20.4%
Cotton dregs 1%~2.5%
Dregs of beans 11%~15%
Corn protamine 1%~2%
Fish oil 2.5%~3.5%
Brewer's yeast 4%~5.5%
Mineral matter 0.9%~1.5%
Choline Chloride 0.4%~0.7%
Multidimensional 0.2%
All percentages are percetage by weight.
The feed formula of aquatic products of the same race is along with different choice, its proportioning of raw material are different.But finally all be with reference to certain standard, Pelteobagrus fulvidraco has the standard (SC/T 1070-2004) on the industry, has stipulated the various nutritive index limit values in the mixed feed.Generally speaking, require nutritive index (protein, fat etc.) and safety and sanitation index to meet standard.Employed which kind of raw material in the prescription there is not concrete requirement.But the final method of checking prescription is still in actual production, and it all is important indicators of judging that aquatic products use back fast growth, feed efficiency height, the death rate low, good in economic efficiency etc.
As Feed Enterprise, reduce cost, generating profit maximization is one of important target.The present invention compares with existing mixed feed, all has obvious benefit on the determining of the selection of its raw material components and proportioning:
1, increases the content of fish meal, be higher than the content of fish meal in patent of invention " Yellow cartfish adult feedstuff " and " feed of a kind of Pelteobagrus fulvidraco ", can increase Protein content in the feed like this, enriched amino acid whose content, improved the attractant of feed; Simultaneously since the Pelteobagrus fulvidraco in postlarva stage to the having relatively high expectations of crude protein, so the content of the fish meal among the present invention relatively other in stage Pelteobagrus fulvidraco content higher, be 52.5%~55%.
2, owing to all use fish meal can increase the production cost and the aquaculture cost of feed greatly,, reach the purpose that reduces the production of fodder cost so the present invention selects can increase equally dregs of beans, corn protamine, the cotton dregs of dietary protein level; The corn protamine is also more remarkable to the pigmentation of Pelteobagrus fulvidraco body colour simultaneously.But because the assorted dregs of rice such as cotton dregs are unfavorable for the digestion of Pelteobagrus fulvidraco postlarva, therefore the content of controlling cotton dregs is 1%~2.5%, the content of dregs of beans is 11%~15%, the content of corn protamine is 1%~2%, all is lower than the content of cotton dregs, dregs of beans and corn protamine in patent of invention " Yellow cartfish adult feedstuff " and " feed of a kind of Pelteobagrus fulvidraco ".
3, in the raw material of feed, selected the processing byproduct (as brewer's yeast, flour etc.) of the more enterprises engaged in processing agricultural products (as beer enterprise, grain and oil enterprise etc.) in area, Fujian, belong to the raw material of agricultural product category and abandoned the area, Fujian than the deficient dish dregs of rice, wheat bran, corn etc., thereby ensured price, the quality and quantity of feedstuff.Wherein brewer's yeast mainly provides protein sources, and peptic function.
4, flour (promptly formerly " the inferior powder " described in the patent) belongs to the feed of energy aspect, and content of starch is higher, has viscosity.The content of flour is higher among the present invention, be 18.48%~20.4%, the content that is higher than flour in patent of invention " Yellow cartfish adult feedstuff " and " feed of a kind of Pelteobagrus fulvidraco " the content and energy of carbohydrate, has also utilized the viscosity of flour in improving feed.Because the present invention adopted expanded processing technology, do not scatter when making expanded feed, and stability is preferably arranged in water, just need to add the strong raw material of viscosity; In addition, the flour price is relatively low, under the prerequisite that reaches nutritive index requirement and processing technology, can be used as the fine setting filler of proportioning.
5, fish oil is rich in unrighted acid, can also provide lot of energy simultaneously, in actual production, compares with vegetable oil, and fish oil all is better than vegetable oil at aspects such as growth promotion, raising aquatic product qualities; Fish oil is also more remarkable to the pigmentation of Pelteobagrus fulvidraco body colour simultaneously.Wang Jiteng etc. have studied seawater fish oil and vegetable oil is formed cobio juvenile growth, body and the influence of tissue fat acid composition, find that the vegetable oil feed has reduced the quality of cobio product; Fat source has produced remarkable influence to the growth of cobio, the fish oil feed has maximum rate of body weight gain and best feed conversion rate, be significantly higher than vegetable oil feed group (p<0.05) and (see " Wang Jiteng; Han Tao; work such as Tian Lixia; " influence that 3 vegetable oil sources are formed cobio growth, body composition and aliphatic acid " [J], Oceanography Institute Of Zhejiang's journal (natural science edition), 2007,26 (3): the 237-244 page or leaf).Therefore raw material of the present invention has been selected fish oil for use, and has abandoned vegetable oil such as soya-bean oil, rape oil.
6, mineral matter, Choline Chloride and the multidimensional etc. in the raw material of the present invention play the effect of extra-nutrition all as additive, and fish body trace elements necessary is provided, and promote the metabolism of fish body, and its addition is all not high.Simultaneously because technology of the present invention is bulking process, need carry out the high temperature modulation, high-pressure extrusion is expanded, and is bigger to the loss of vitamin, therefore increased the content of multidimensional, to satisfy the demand of Pelteobagrus fulvidraco to vitamin.
Above-mentioned various raw material components all can be purchased on market.
For improving the service time of product of the present invention, can in material composition of the present invention, add mould inhibitor, its content is 0.1%.Mould inhibitor mainly plays the killing fungus effect, so its content must reach certain amount and just work, and excessively also can cause adverse effect to Pelteobagrus fulvidraco but add.
For making product efficacy of the present invention better, can add calcium dihydrogen phosphate in addition in its raw material components, its content is 0.25~0.35%; Liver protectant, its content are 0.1%~0.15%; Antioxidant, its content are 0.02%.Wherein, calcium dihydrogen phosphate is mainly used in additional calcium, P elements; Liver protectant can effectively be alleviated the disease in the liver and gallbladder of Pelteobagrus fulvidraco because of ingesting in a large number and growing and cause fast, improves survival rate of Pelteobagrus fulvidraco and raiser's economic benefit; Antioxidant is mainly used in and prevents raw material such as protein, fatty oxidized in the feed.Above-mentioned each raw material components is trace to be added.
Add man-hour, generally adopt bile acid as liver protectant, antioxidant then generally adopts ethoxyquinoline.
Also can be on the basis of corn protamine and fish oil in the raw material components of the present invention, other is added with the additive that is beneficial to pigment deposition, makes to culture the Pelteobagrus fulvidraco body colour near natural effect, and this additive is the sea-tangle powder, and its content is 1%~2%; Shrimp shell meal, its content are 1%~1.2%.
Warp under the identical management mode condition, adopts the swelling granular mixed feed for postlarva of pelteobagrus fulvidraco of following each raw material components and content maximum with respect to its cost decline of mixed feed of routine, culture efficiency the best in same plant:
Fish meal 55%;
Flour 18.78%;
Cotton dregs 1%;
Dregs of beans 11.5%;
Corn protamine 1%;
Fish oil 3%;
Brewer's yeast 5.5%;
Mineral matter 1%;
Choline Chloride 0.5%;
Multidimensional 0.2%;
Calcium dihydrogen phosphate 0.3%;
Liver protectant 0.1%;
Antioxidant 0.02%;
Sea-tangle powder 1%;
Shrimp shell meal 1%;
Mould inhibitor 0.1%.
The schistostoma of considering the postlarva Pelteobagrus fulvidraco is less, and its feed should be fit to it to be swallowed, and therefore feed particle diameter of the present invention should be 1.6 ± 0.1mm.
Below by concrete test compared with prior art, analyze its beneficial effect with the present invention:
Test one: utilize the present invention to carry out 30 days Pelteobagrus fulvidraco culture experiment by a definite date.Found that the present invention has good stable and higher feed efficiency, can guarantee normally ingesting and growing of Pelteobagrus fulvidraco postlarva, and can improve the survival rate of Pelteobagrus fulvidraco postlarva, reduce aquaculture cost, alleviate pollution breeding water body.
1, experimental condition:
The test aquarium: the employing specification is 3 of the glass aquariums of 1m * 0.5m * 0.75m, tests to clean in previous week with potassium permanganate and sterilizes;
The test water source: 48 hours running water of aeration, about each case depth of water 0.5m;
Fish is used in test: the test fish is the Pelteobagrus fulvidraco postlarva with batch artificial incubation, hatch 20 days laggard pedestrian workers and instruct food, domestication one all backs Pelteobagrus fulvidraco energy free choice feeding man-made feeds also begin to test, select physical health, Pelteobagrus fulvidraco postlarva of the same size is the test fish, average weight is 0.4g, and every case is fed 150 tails;
Test feed: swelling granular mixed feed for postlarva of pelteobagrus fulvidraco of the present invention (its raw material components and content are: fish meal 55%, flour 18.78%, cotton dregs 1%, dregs of beans 11.5%, corn protamine 1%, fish oil 3%, brewer's yeast 5.5%, mineral matter 1%, Choline Chloride 0.5%, multidimensional 0.2%, calcium dihydrogen phosphate 0.3%, liver protectant 0.1%, antioxidant 0.02%, sea-tangle powder 1.5%, shrimp shell meal 1%, mould inhibitor 0.1%), its nutritional labeling sees Table 1.
The nutritional labeling of table 1 test feed (%)
|
Thick protein |
Crude fat |
Methionine |
Lysine |
Moisture |
Swelling granular mixed feed for postlarva of pelteobagrus fulvidraco |
45.8 |
6.9 |
1.8 |
3.5 |
9.0 |
2, process of the test:
Feedstuff feeding: after will taming good postlarva grouping, begin the swelling granular mixed feed for postlarva of pelteobagrus fulvidraco of the present invention of throwing something and feeding respectively.Throw something and feed every day 2 times (9:00 and 17:00), be as the criterion with the bait of in 30 minutes, having ingested.Unnecessary residual bait picked up weighs, and from daily ration, feeding quantity, deduct, as when time food ration.
Daily management: observe and write down the situations such as feeding activity of weather, water temperature, pH value and Pelteobagrus fulvidraco every day, as the foundation of adjusting daily ration, feeding quantity; In experimental period,, in time regulate, keep breeding water body pure and fresh according to the active situation and the water quality situation of fish body in each aquarium; The generation of sterilization to ward off disease in good time.Oxygenation in 24 hours.The duration of test water temperature is: 24.2 ℃~27.5 ℃.
3, result of the test:
End on May 25, in experimental period from 25 days to 2008 April in 2008, totally 30 days.During off-test, the test fish of each aquarium pulled out weigh, calculate rate of body weight gain and survival rate.Computing formula is:
Average growth rate (%)=net gain/starting weight * 100%;
Survival rate (%)=(initial mantissa-dead mantissa)/initial mantissa * 100%.
Result of the test sees Table 2.
Table 2 expanding compound feed is to the influence of Pelteobagrus fulvidraco postlarva growth
Project |
Swelling granular mixed feed for postlarva of pelteobagrus fulvidraco |
Initial average weight (g) |
0.4 |
Finish average weight (g) |
2.7 |
Average net gain (g) |
2.3 |
Average growth rate (%) |
575 |
Initial mantissa's (tail) |
450 |
Dead mantissa's (tail) |
9 |
Survival rate (%) |
98.0 |
The result shows that the Pelteobagrus fulvidraco postlarva that mixed feed of the present invention is fed has good average growth rate and survival rate:
(1) in process of the test, the test fish has preferably and ingests, and growth performance is good, and average growth rate reaches 575%, and the postlarva body colour is natural; Aspect survival rate, added certain immunopotentiator in the feed formula, improved the fish body anti-stress and resistance against diseases, survival rate of this test postlarva reaches 98.0%.
(2), be added with liver protectant among the present invention, can effectively alleviate the burden that quick growth brings blue Pelteobagrus fulvidraco liver and gall, reduce the disease of liver and gall aspect, reduce the death rate of Pelteobagrus fulvidraco.
(3) after the present invention drops in the water, be dispersed in the bigger water surface, be easy to the Pelteobagrus fulvidraco postlarva and ingest, go to fight for and needn't expensively get energy, reduced the consumption of Pelteobagrus fulvidraco postlarva self-energy, this has also improved growth performance to a certain extent; There are not problems such as feed scatters and disappears in the present invention simultaneously, and helps the sustainable development that Pelteobagrus fulvidraco is cultured.
4, test brief summary:
Growth result: under this experimental condition, the test fish average growth rate of the expanded material of throwing something and feeding reaches 575%, shows the normal growth of the present invention's energy guarantee test fish;
Survival rate: under this experimental condition, the survival rate of Pelteobagrus fulvidraco postlarva shows comprehensive nutrition of the present invention up to 98%, has strengthened the immunity of Pelteobagrus fulvidraco postlarva, has improved the adaptive capacity of Pelteobagrus fulvidraco postlarva to environment;
The situation of ingesting: after this on-test, the Pelteobagrus fulvidraco postlarva expanded material of can ingesting well, and speed is very fast, and ingesting in 30 minutes basically finishes, and illustrates that the present invention can adapt to the custom of ingesting of Pelteobagrus fulvidraco;
Economic benefit: the test fish ingests behind the product of the present invention, and body colour is natural, has increased the economic worth of Pelteobagrus fulvidraco postlarva.
Test two: by carry out 40 days breed by a definite date in plant, obtained good effect, the present invention's 2007 annual value of production reach tens thousand of units, and the user is reflected well, has reached the result of use of expection.
1, experimental condition:
Test place---fishing ground, thing lake, Wuhan City, Hubei Province;
Test feed---swelling granular mixed feed for postlarva of pelteobagrus fulvidraco of the present invention (its raw material components and content are: fish meal 55%, flour 18.78%, cotton dregs 1%, dregs of beans 11.5%, corn protamine 1%, fish oil 3%, brewer's yeast 5.5%, mineral matter 1%, Choline Chloride 0.5%, multidimensional 0.2%, calcium dihydrogen phosphate 0.3%, liver protectant 0.1%, antioxidant 0.02%, sea-tangle powder 1.5%, shrimp shell meal 1%, mould inhibitor 0.1%);
Test period---in May, 2008~2008 year June.
2, process of the test: having carried out at the used test feed in above-mentioned test site is that 40 days Pelteobagrus fulvidraco postlarva is cultured.
3, check and accept: newly-increased Pelteobagrus fulvidraco postlarva output reaches 600,000 tails, and the test Pelteobagrus fulvidraco ingests in order, stablizes, and culture experiment water quality is good, the Pelteobagrus fulvidraco physical health, and the body colour nature is cultured easy to use.
4, analysis of experiments: in fry specification price 1500 yuan/ten thousand tails,
Ten thousand yuan of new output values=newly-increased Pelteobagrus fulvidraco output * fry price=1500 * 60=9;
Culture per ten thousand tail costs and need 700 yuan approximately, it is 800 yuan that per ten thousand tails are cultured profit;
Ten thousand yuan of the new profits=breed profit * newly-increased Pelteobagrus fulvidraco output=800 * 60=4.8.
5, test brief summary: use the present invention to be used for the Pelteobagrus fulvidraco postlarva and culture, the new profit has reduced the pollution to water environment simultaneously effectively effectively, can obtain good social benefit and economic benefit.
In sum, the present invention has the following advantages:
1, comprehensive nutrition: various essential amino acids, trace element, special-purpose minerals and vitamins etc. are rich in the present invention, satisfy Pelteobagrus fulvidraco in the postlarva stage demand to various nutritional labelings, the feed conversion rate height is easier to be digested, absorb and utilize.
2, survival rate height: product comprehensive nutrition of the present invention, effectively killed pathogenic bacteria in the process, reduced the morbidity risk rate of postlarva; Add aquatic products special immune reinforcing agent in the prescription, improved the resistance against diseases of fish body.
3, few to the breeding water body pollution: the present invention's nutrient in water body does not run off, and is few to the pollution of breeding water body, protects water resource effectively, helps the healthy sustainable development of Pelteobagrus fulvidraco aquaculture.
4, green non-pollution: it is natural that the Pelteobagrus fulvidraco of the product of the present invention of ingesting has body colour, and fish body health, medication are few, and characteristics such as it is fast to grow can be brought higher economic benefit, social benefit and ecological benefits for this enterprise and raiser.
The specific embodiment
Below the present invention is described in further detail by specific embodiment, but the present invention is not limited to following examples.
Less than 2g, feed particle diameter of the present invention is generally 1.6 ± 0.1mm at the body weight of the Pelteobagrus fulvidraco postlarva that the present invention cultured.
Embodiment 1: basic raw materials component of the present invention and content comprise:
Fish meal 50%;
Flour 20.4%;
Cotton dregs 2.5%;
Dregs of beans 15%;
Corn protamine 1.5%;
Fish oil 3.5%;
Brewer's yeast 5%;
Mineral matter 1.2%;
Choline Chloride 0.6%;
Multidimensional 0.2%;
Mould inhibitor 0.1%.
Adopt this example feed to culture the Pelteobagrus fulvidraco postlarva in Fujian Tianma Feedstuff Co., Ltd. aquaculture laboratory, culturing time is totally 30 days in March, 2008 to April, implements 6 of experiment aquariums.Ingesting the Pelteobagrus fulvidraco postlarva of present embodiment feed can normal growth, and survival rate is higher.
Embodiment 2: raw material components and content that the present invention adds behind an amount of additive comprise:
Fish meal 50%;
Flour 19.08%; ,
Cotton dregs 2%;
Dregs of beans 15%;
Corn protamine 2%;
Fish oil 2.5%;
Brewer's yeast 4%; ,
Mineral matter 1.5%;
Choline Chloride 0.7%;
Multidimensional 0.2%;
Calcium dihydrogen phosphate 0.25%;
Liver protectant 0.15%;
Antioxidant 0.02%;
Sea-tangle powder 1.5%;
Shrimp shell meal 1%;
Mould inhibitor 0.1%.
Adopt this example feed to culture the Pelteobagrus fulvidraco postlarva in Wuhan Han Nan area, culturing time is totally 40 days in May, 2008 to June, implements to cultivate 100 square metres in pond.Compare with conventional mixed feed, the Pelteobagrus fulvidraco postlarva speed of growth of the present embodiment feed of ingesting is very fast, and body colour is near nature, and the incidence of disease is low.
Embodiment 3: raw material components and content that the present invention adds behind an amount of additive comprise:
Fish meal 52.5%;
Flour 18.98%;
Cotton dregs 1%;
Dregs of beans 13%;
Corn protamine 1.5%;
Fish oil 3%;
Brewer's yeast 4.5%;
Mineral matter 0.9%;
Choline Chloride 0.6%;
Multidimensional 0.2%;
Calcium dihydrogen phosphate 0.35%;
Liver protectant 0.15%;
Antioxidant 0.02%;
Sea-tangle powder 2%;
Shrimp shell meal 1.2%;
Mould inhibitor 0.1%.
Adopt this example feed to culture the Pelteobagrus fulvidraco postlarva in the Jingzhou Prefecture, Hubei, culturing time is totally 40 days in May, 2008 to June, implements to cultivate 120 square metres in pond.Compare the Pelteobagrus fulvidraco postlarva body colour nature of the present embodiment feed of ingesting, survival rate height, fast growth with conventional mixed feed.
Embodiment 4: raw material components and content that the present invention adds behind an amount of additive comprise:
Fish meal 55%;
Flour 18.48%;
Cotton dregs 1%;
Dregs of beans 11%;
Corn protamine 2%;
Fish oil 3%;
Brewer's yeast 5%;
Mineral matter 1%;
Choline Chloride 0.4%;
Multidimensional 0.2%;
Calcium dihydrogen phosphate 0.3%;
Liver protectant 0.1%;
Antioxidant 0.02%;
Sea-tangle powder 1.2%;
Shrimp shell meal 1.2%;
Mould inhibitor 0.1%.
Adopt this example feed to culture the Pelteobagrus fulvidraco postlarva in the changde, hunan area, culturing time is totally 40 days in May, 2008 to June, implements to cultivate 100 square metres in pond.Compare with conventional mixed feed, the Pelteobagrus fulvidraco physical health of the present embodiment feed of ingesting, the body colour nature, fast growth, disease incident is low.
Embodiment 5: the raw material components and the content of culture efficiency the best of the present invention comprise:
Fish meal 55%;
Flour 18.78%;
Cotton dregs 1%;
Dregs of beans 11.5%;
Corn protamine 1%;
Fish oil 3%;
Brewer's yeast 5.5%;
Mineral matter 1%;
Choline Chloride 0.5%;
Multidimensional 0.2%;
Calcium dihydrogen phosphate 0.3%;
Liver protectant 0.1%;
Antioxidant 0.02%;
Sea-tangle powder 1%;
Shrimp shell meal 1%;
Mould inhibitor 0.1%.
Adopt this example feed to culture the Pelteobagrus fulvidraco postlarva in area, thing lake, Wuhan, culturing time is totally 40 days in May, 2008 to June, implements to cultivate 100 square metres in pond.Compare with conventional mixed feed, the Pelteobagrus fulvidraco physical health of the present embodiment feed of ingesting is moved about rapidly, and it is vigorous to ingest, and body colour is natural, survival rate height, fast growth; Compare with preceding 4 embodiment feeds, the Pelteobagrus fulvidraco postlarva of the present embodiment feed of ingesting ingests more vigorous, and the speed of growth is the fastest, and survival rate is the highest, body colour nature, economic benefit maximum.
The present invention is a kind of mixture of being made by the processing method of expanded pellet feed by each raw material components, and above-mentioned various raw material components all can be purchased on market, and all the other components except that fish meal are general raw material.Because the processing technology of fish meal is: fishing → freezing → boiling → squeezing → drying → grind → pack wherein in drying process, mainly is divided into straight fiery drying and steam drying according to its drying process difference.Steam drying refers to steam fish meal be carried out drying, and this technological temperature is lower, and is less to the nutrition destruction of fish meal, can make the fish meal comparatively fresh.Adopt the steam drying fish meal in the present invention, the source of this fish meal mainly relies on state's imports such as Chile, Peru.Adding man-hour, generally adopting bile acid as liver protectant, antioxidant then generally adopts ethoxyquinoline.
As shown in Figure 1, the present invention adds the technological process of production in man-hour and is: big part raw material and smallclothes mixture are dropped into hopper 1 → screen scarifier 2 removal of impurities primary dcreening operation → mixers 3 mixings → pulverizer 4 ultramicro grinding → mixer mixing → screening machine 6 postsearch screenings 5 second time → modified case 7 modified → granulator 8 extrusion granulation → dryers 9 oven dry → dust removal machines 10 dedustings → oil-injection machine 11 oil spouts → cooler bin 12 cooling → screening machines 13 packing of sieving → weigh for the first time.