CN112401089A - Novel feed capable of improving bighead carp breeding density and preparation method thereof - Google Patents

Novel feed capable of improving bighead carp breeding density and preparation method thereof Download PDF

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CN112401089A
CN112401089A CN202011453429.8A CN202011453429A CN112401089A CN 112401089 A CN112401089 A CN 112401089A CN 202011453429 A CN202011453429 A CN 202011453429A CN 112401089 A CN112401089 A CN 112401089A
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parts
feed
vitamin
meal
bighead
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邢孔萍
倪冬姣
向江波
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Foshan Boen Biotechnology Co ltd
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Foshan Boen Biotechnology Co ltd
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    • A23—FOODS OR FOODSTUFFS; TREATMENT THEREOF, NOT COVERED BY OTHER CLASSES
    • A23K—FODDER
    • A23K10/00—Animal feeding-stuffs
    • A23K10/30—Animal feeding-stuffs from material of plant origin, e.g. roots, seeds or hay; from material of fungal origin, e.g. mushrooms
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    • A23—FOODS OR FOODSTUFFS; TREATMENT THEREOF, NOT COVERED BY OTHER CLASSES
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    • A23K20/00—Accessory food factors for animal feeding-stuffs
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    • A23K20/158—Fatty acids; Fats; Products containing oils or fats
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    • A23K—FODDER
    • A23K20/00—Accessory food factors for animal feeding-stuffs
    • A23K20/10—Organic substances
    • A23K20/174—Vitamins
    • A—HUMAN NECESSITIES
    • A23—FOODS OR FOODSTUFFS; TREATMENT THEREOF, NOT COVERED BY OTHER CLASSES
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    • A23V2400/00—Lactic or propionic acid bacteria
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Abstract

The invention provides a novel feed capable of improving bighead carp breeding density and a preparation method thereof, and belongs to the field of aquaculture fish feeds. The feed comprises the following components in parts by weight: 10-20 parts of biological fermentation feed, 35-45 parts of fish meal, 20-30 parts of bone meal, 25-35 parts of dried trash fish, 30-40 parts of fly maggot powder, 5-10 parts of leech powder, 20-30 parts of flour, 45-55 parts of soybean meal (CP 46%), 200 parts of rapeseed meal 100-containing materials, 50-100 parts of cottonseed meal, 4-6 parts of soybean phospholipid oil, 4-6 parts of fish oil, 4-6 parts of choline chloride (60%), 4-6 parts of monocalcium phosphate, 2-4 parts of lysine (70%), 1-3 parts of methionine, 4.5-8.5 parts of composite multi-mineral, 2-3 parts of composite multi-vitamin, 1-3 parts of salt and 4-6 parts of antioxidant. Wherein the biological fermentation feed strain comprises Clostridium butyricum, Saccharomyces cerevisiae, Lactobacillus plantarum and Bifidobacterium lactis. The feed can enhance the intestinal health of the bighead carps, improve the nutrient digestion, absorption and utilization rate of the feed, promote the bighead carps to be separately raised fishes by changing the intercropping status of the bighead carps, improve the culture density of the bighead carps and promote the mass production of the bighead carps; meanwhile, the water quality can be improved, and the method has important significance for sustainable development of green aquaculture.

Description

Novel feed capable of improving bighead carp breeding density and preparation method thereof
Technical Field
The invention relates to the field of aquaculture fish feed, in particular to novel feed capable of improving bighead carp culture density and a preparation method thereof.
Background
Bighead carp (aristichtys nobilis) is also called spotted silver carp, fat head fish, baotou fish, big head fish, black silver carp, spotted silver carp and also called male fish, and is one of the four Chinese carps. According to the statistics of '2020 Chinese fishery statistics yearbook', the total yield of bighead carps in the whole country in 2019 is about 310.16 ten thousand tons, and the yield is second to that of grass carp and silver carp. The bighead carp has extremely large head, short and round kisses, wide front part, longer head than body, flat side, round abdomen in front of the base of ventral fin, and narrow ventral ridge from the back to the front of anus. Bighead carp is born with mild nature and does not like jumping. The bighead carp has short food chain, less diseases and high growth speed, the head of the bighead carp is rich in various unsaturated fatty acids, can reduce cholesterol, has delicious taste and is deeply loved by consumers.
The growth of bighead carps under natural conditions mainly depends on filter feeding of zooplankton, the traditional bighead carp breeding mode is to fertilize and culture plankton in a pond, then bighead carps filter feeding of plankton, and because the number of plankton is limited, bighead carps are generally bred as intercropped fishes, the breeding density per mu is about 40 fish, and the yield is low; in recent years, China has less plankton in water after completely 'fertilizer forbidding' on the water surface, and the yield of bighead carps is more insufficient. However, with the improvement of living standard of people, the demand of bighead carp is continuously increased, and the yield is far from meeting the market demand only by depending on the culture mode of plankton in filter-feeding water. The feeding of the bighead carp compound feed is an effective way for improving the yield of the bighead carps.
At present, the market demand prompts the bighead carp breeding scale to be continuously expanded, but the corresponding bighead carp feed on the market is few and few, most of the feed is mainly used for feeding residual feed for mainly breeding the bighead carp, so that the feed nutrition proportion is not suitable, the feed utilization rate is low, the growth performance is reduced, the bighead carp is difficult to be fed as independently bred fish, and the breeding density cannot be improved; in addition, improper material type selection also causes adverse effects of eutrophication of aquaculture water bodies.
The invention develops a novel feed containing a biological fermentation feed and capable of improving the bighead carp breeding density, can enhance the intestinal health of the bighead carp, improves the nutrient digestion and absorption utilization rate of the feed, improves the bighead carp breeding density by promoting the bighead carp to be a separately bred fish by changing the bighead carp intercropping status and has a propulsion effect on the mass production of the bighead carp; meanwhile, the water quality can be improved, and the method has important significance for sustainable development of green aquaculture.
Disclosure of Invention
The invention aims to overcome the defects and provide a novel feed capable of improving the bighead carp breeding density.
The invention also aims to provide a preparation method of the novel feed capable of improving the bighead carp breeding density.
In order to achieve the purpose, the invention provides the following technical scheme:
the novel feed capable of improving the bighead carp breeding density is characterized in that the nutritional raw materials comprise the following components in parts by weight: 10-20 parts of biological fermentation feed (fermentation strains are clostridium butyricum, saccharomyces cerevisiae, lactobacillus plantarum and bifidobacterium lactis), 35-45 parts of fish meal, 20-30 parts of bone meal, 25-35 parts of dried trash fish, 30-40 parts of fly maggot powder, 5-10 parts of leech powder, 20-30 parts of flour, 45-55 parts of soybean meal (CP 46%), 200 parts of rapeseed meal 100, 50-100 parts of cottonseed meal, 4-6 parts of soybean phospholipid oil, 4-6 parts of fish oil, 4-6 parts of choline chloride (60%), 4-6 parts of calcium dihydrogen phosphate, 2-4 parts of lysine (70%), 1-3 parts of methionine, 4.5-8.5 parts of composite multi-mineral, 2-3 parts of composite multi-vitamin, 1-3 parts of salt and 4-6 parts of antioxidant.
The biological fermentation feed is characterized in that plant agricultural and sideline products are used as main raw materials under artificial controllable conditions, part of macromolecular materials such as polysaccharide, protein and fat are degraded through the metabolism of microorganisms, and micromolecular substances such as organic acid, soluble small peptide and the like are generated, so that the biological feed with rich nutrition, good palatability and high content of beneficial live bacteria is formed, the nutrition of the feed is rich, the digestion and absorption are easy, and the growth of animals is better. The biological fermentation feed has good safety and also has the function of improving water quality.
Among them, Clostridium butyricum is also called butyric acid bacteria, Clostridium butyricum, butyric acid bacteria. The bacillus subtilis is an obligate anaerobic gram-positive bacillus, the diameter of the bacillus subtilis is (0.6-1.2) × (3.0-7.0) mum, the two ends of the bacillus subtilis are blunt, the middle part of the bacillus subtilis slightly swells, the bacillus subtilis is in a straight rod shape or slightly bent shape, and the bacillus subtilis is single or in pairs, short-chain, occasionally has filamentous thalli, and can move around as flagella. Hydrolyzed gelatin, which does not digest serum proteins, can ferment carbohydrates such as glucose, sucrose, fructose, lactose, etc. to produce acids, and one notable feature is the production of amylase, which hydrolyzes starch but not cellulose. The final metabolites of hydrolyzed starch and sugars are butyric, acetic and lactic acids, with small amounts of propionic and formic acids also being found. Has the functions of raising animal intestinal pH and reducing intestinal toxin.
The saccharomyces cerevisiae has a developed enzyme system, can generate more than ten kinds of biological enzymes such as protease, lipase and the like and coenzyme, contains abundant nucleotide, amino acid and small peptide in a cell protoplasm, and can enhance the immunity of animals.
The optimal growth temperature of the lactobacillus plantarum is 30-35 ℃, the lactobacillus plantarum is anaerobic or facultative anaerobic, can produce a large amount of acid, can keep the pH value stable in a water body, can well inhibit the rotting of fish manure residual bait in the water body, reduces the increase of ammonia nitrogen in the water body, keeps the water body clean, and achieves the purpose of healthy and green cultivation.
The bifidobacterium lactis is an anaerobic bacterium which is lactic acid generating, gram positive, free of sporulation and motionless, can survive through gastrointestinal tracts, can maintain healthy gastrointestinal tract flora, has excellent acid bile tolerance, contains bile salt hydrolase, has strong adhesion, can inhibit pathogenic bacteria, enhance barrier function and immunity, and has important significance for reducing or replacing antibiotics, reducing medicine residues in animal meat and ensuring animal health.
The fish meal is a high-protein feed raw material which is prepared by using one or more fishes as raw materials and carrying out deoiling, dehydration and crushing processing. The fish meal does not contain substances such as cellulose and the like which are difficult to digest, has high crude fat content and high effective energy value. Contains abundant vitamins, especially B vitamins. Fish meal is also a good source of minerals, has high contents of calcium and phosphorus and proper proportion, and all phosphorus can be utilized. In addition, fish meal also contains growth factors, which can stimulate the growth and development of animals.
The soybean lecithin oil is extracted from oil residue in soybean oil production, and mainly contains lecithin, cephalin, inositol phospholipid, etc. The soybean phospholipid oil also contains abundant unsaturated fatty acid milk linolenic acid and linoleic acid, and can reduce subcutaneous fat deposition of animal body and enhance immunity of organism.
Further, the strain added into the biological fermentation feed comprises: the viable count of clostridium butyricum, saccharomyces cerevisiae, lactobacillus plantarum and bifidobacterium lactis is not less than 3 multiplied by 109CFU/g。
Furthermore, the content of organic acid in the biological fermentation feed is more than or equal to 3 percent, and the number of effective viable bacteria is more than or equal to 3 multiplied by 109CFU/g。
The invention also discloses a preparation method of the novel feed capable of improving the bighead carp breeding density, which comprises the following steps:
1. under the conditions that the temperature is 36-38 ℃ and the water content is 41-50%, 2-6 parts of clostridium butyricum, 1-3 parts of saccharomyces cerevisiae, 2-6 parts of lactobacillus plantarum, 2-6 parts of bifidobacterium lactis, 550 parts of bean pulp, 500 parts of rapeseed meal, 310 parts of cotton meal and 200 parts of cotton meal are hermetically fermented for 7-14 days to prepare the biological fermentation feed for later use.
2. 35 parts of methionine chelated zinc with the mass fraction of 15%, 30 parts of ferrous fumarate with the mass fraction of 30%, 2 parts of saccharomyces cerevisiae selenium with the mass fraction of 50%, 18 parts of methionine copper with the mass fraction of 15%, 30 parts of glycine manganese with the mass fraction of 22% and 40 parts of carrier are placed in a three-dimensional mixer to be uniformly mixed for 180 seconds, and the uniformity is less than 5%, so that the composite multi-mineral is prepared for later use.
3. Placing 40 parts of vitamin A, 40 parts of vitamin E, 45 parts of vitamin C, 330 parts of vitamin D, 5 parts of vitamin K, 20 parts of vitamin E, 16 parts of vitamin B, 216 parts of vitamin B, 65 parts of vitamin B1230 parts of vitamin B, 32 parts of calcium pantothenate, 80 parts of biotin, 30 parts of nicotinic acid, 50 parts of nicotinic acid, 25 parts of folic acid and 60 parts of carrier in a three-dimensional mixer, and uniformly mixing for 180 seconds with the uniformity being less than 5% to prepare the compound multivitamin for later use.
4. 35-45 parts of fish meal, 20-30 parts of bone meal, 25-35 parts of dried trash fish, 30-40 parts of fly maggot powder, 5-10 parts of leech powder, 20-30 parts of flour, 45-55 parts of soybean meal (CP 46%), 200 parts of rapeseed meal, 50-100 parts of cottonseed meal, 4-6 parts of soybean phospholipid oil, 4-6 parts of fish oil, 4-6 parts of choline chloride (60%), 4-6 parts of monocalcium phosphate, 2-4 parts of lysine (70%), 1-3 parts of methionine, 1-3 parts of salt and 4-6 parts of antioxidant, and uniformly mixing 10-20 parts of the prepared biological fermentation feed, 4.5-8.5 parts of compound multi-mineral and 2-3 parts of compound multi-vitamin, and granulating by equipment to obtain the novel feed capable of improving the bighead carp breeding density.
The technical scheme of the invention has the following advantages:
1. the feed has reasonable formula, comprehensive nutrition, rich nitrogen, phosphorus and potassium, protein, fat, cellulose and rich organic matters, can be directly ingested by the bighead carp, can culture plankton to be indirectly eaten by the bighead carp, and can greatly improve the culture density of the bighead carp.
2. The biological fermentation feed contains a large amount of organic acids and small peptides, can reduce the pH value of intestinal tracts and increase the immunity of the intestinal tracts, in addition, the small peptides are easy to digest and absorb, the anti-nutritional factors in the feed raw materials are degraded, the nutritional value of the feed is improved, and after the feed is prepared into the bighead carp feed, the digestion and absorption of the nutritional ingredients by the bighead carp are promoted, so that the healthy and rapid growth of the bighead carp can be effectively promoted.
3. The biological fermentation feed contains various probiotics, can generate a large amount of protease, amylase and the like, and improves the digestion and utilization rate of the bighead carp on nutrient substances after entering the intestinal tract of the fish.
4. The feed provided by the invention is rich in aquatic beneficial bacteria such as clostridium butyricum, saccharomyces cerevisiae, lactobacillus plantarum and bifidobacterium lactis, and after the feed is put into a water body, the content of the beneficial bacteria in the water body is greatly improved, and the aim of purifying water quality can be achieved while the growth of bighead carps is promoted.
5. The feed provided by the invention is fed in a multi-point fixed-point automatic feeding mode, accords with the ingestion habit of bighead carps, reduces the occurrence of water eutrophication, excessive ammonia nitrogen content and other conditions caused by large-scale feeding, effectively relieves the problem of water pollution caused in the using process of the traditional rich water feed and the common feed, and promotes the development of pollution-free aquatic product breeding industry.
Detailed Description
The present invention will now be further described with reference to specific examples, but the scope of the present invention is not limited thereto, and all of them are intended to be covered by the present invention
Variations or equivalent alterations from the inventive concept are within the scope of the invention.
Example 1:
the embodiment of the invention provides a novel feed capable of improving bighead carp breeding density, which comprises the following components: 10 parts of biological fermentation feed, 35 parts of fish meal, 20 parts of bone meal, 25 parts of dried trash fish, 30 parts of fly maggot powder, 5 parts of leech powder, 20 parts of flour, 45 parts of soybean meal (CP 46%), 100 parts of rapeseed meal, 50 parts of cottonseed meal, 4 parts of soybean phospholipid oil, 4 parts of fish oil, 4 parts of choline chloride (60%), 4 parts of monocalcium phosphate, 2 parts of lysine (70%), 1 part of methionine, 5 parts of composite multi-mineral, 2 parts of composite multi-vitamin, 1 part of salt and 4 parts of antioxidant.
The biological fermentation feed comprises the following components in parts by weight: under the conditions that the temperature is 37 ℃ and the water content is 45%, 2 parts of clostridium butyricum, 1 part of saccharomyces cerevisiae, 2 parts of lactobacillus plantarum, 2 parts of bifidobacterium lactis, 450 parts of bean pulp, 310 parts of rapeseed meal and 100 parts of cottonseed meal are subjected to sealed fermentation for 7 days to prepare the biological fermented feed for later use.
Example 2:
the embodiment of the invention provides a novel feed capable of improving bighead carp breeding density, which comprises the following components: 15 parts of biological fermentation feed, 40 parts of fish meal, 25 parts of bone meal, 30 parts of dried trash fish, 35 parts of maggot powder, 8 parts of leech powder, 25 parts of flour, 50 parts of soybean meal (CP 46%), 150 parts of rapeseed meal, 75 parts of cottonseed meal, 5 parts of soybean phospholipid oil, 5 parts of fish oil, 5 parts of choline chloride (60%), 5 parts of monocalcium phosphate, 3 parts of lysine (70%), 2 parts of methionine, 6 parts of composite multi-mineral, 2.5 parts of composite multi-vitamin, 2 parts of salt and 5 parts of antioxidant.
The biological fermentation feed comprises the following components in parts by weight: 5 parts of clostridium butyricum, 2 parts of saccharomyces cerevisiae, 3 parts of lactobacillus plantarum, 3 parts of bifidobacterium lactis, 500 parts of bean pulp, 400 parts of rapeseed meal and 150 parts of rapeseed meal are subjected to sealed fermentation for 8 days at the temperature of 37 ℃ and the water content of 41 percent.
Example 3:
20 parts of biological fermentation feed, 45 parts of fish meal, 30 parts of bone meal, 35 parts of dried trash fish, 40 parts of fly maggot powder, 10 parts of leech powder, 30 parts of flour, 55 parts of soybean meal (CP 46%), 200 parts of rapeseed meal, 100 parts of cottonseed meal, 6 parts of soybean phospholipid oil, 6 parts of fish oil, 6 parts of choline chloride (60%), 6 parts of monocalcium phosphate, 4 parts of lysine (70%), 3 parts of methionine, 8.5 parts of composite multi-mineral, 3 parts of composite multi-vitamin, 3 parts of salt and 6 parts of antioxidant.
The biological fermentation feed comprises the following components in parts by weight: and (2) sealing and fermenting 6 parts of clostridium butyricum, 3 parts of saccharomyces cerevisiae, 6 parts of lactobacillus plantarum, 6 parts of bifidobacterium lactis, 550 parts of soybean meal, 500 parts of rapeseed meal and 200 parts of cottonseed meal for 14 days under the conditions that the temperature is 37 ℃ and the water content is 42%.
Comparative example: 2 common compound feeds are available on the market.
Examples 1-3 were validated by specific breeding experiments:
5000 tails of healthy bighead carps with the average weight of 60.05 +/-0.13 g are selected and randomly divided into 5 treatment groups, and each group has 1000 tails. The initial body weight was statistically analyzed and the differences among groups were not significant (P > 0.05); grouping conditions are as in table 1:
TABLE 1 grouping and treatment of bighead carp
Grouping Feed composition
Control group 1 Broken feed for bighead carps on market
Control group 2 Expanded feed for bighead carp in market
Experimental group 1 Example 1 novel feed for bighead carp
Experimental group 2 Example 2 novel feed for bighead carp
Experimental group 3 Example 3 novel Bighead feed
The domestication is carried out for 7 days before the test, and the test period is 56 days. The test is carried out in an earth pond of a Huanji base of the Sonn group, and the water temperature is 25-32 ℃ during the test;
recording the initial weight and the final weight of 5 groups of bighead carps before and after the test, and calculating the weight gain rate, the feed coefficient and the specific growth rate to investigate the influence of the feed on the growth performance of the bighead carps, wherein the results are shown in a table 2;
recording the indexes of the water quality condition of the soil pond, such as pH value, total ammonia nitrogen and nitrite before and after the test, and the results are shown in a table 3:
TABLE 2 Effect of feed on growth Performance of Aristichthys nobilis
Index (I) Control group 1 Control group 2 Experimental group 1 Experimental group 2 Experimental group 3
Initial body weight, g 60.05±0 .13 61.05±0 .20 60.38±0 .21 60.01±0 .13 59.97±0 .10
Terminal body weight, g 100.28±0.66 105.12±0.53 136±0.46* 133±0.30* 137±0.39*
Weight gain ratio,% 66.99 72.19 125.24 121.62 128.44
Coefficient of feed 2.01 1.90 1.60 1.56 1.53
Specific growth rate,%/d 0.92 0.97 1.45 1.42 1.48
TABLE 3 Effect of feed on Water quality
Figure 146343DEST_PATH_IMAGE002
Indicates significant difference compared to control group (P < 0.05).
As shown in Table 2, the weight of five groups of bighead carps increased greatly after the test, but compared with the control group, the terminal weight, the weight gain rate and the specific growth rate of the bighead carps increased greatly, and the difference reaches a significant level (P < 0.05).
Test results show that the bighead feed produced by the biological fermentation feed has balanced nutrition and digestibility, can effectively replace expensive animal and plant protein raw materials such as fish meal and digestion promoting additives, obviously improves the production performance, ensures healthy and rapid growth of bighead carp, and effectively improves the bighead carp breeding density.
As can be seen from Table 3, the novel bighead carp feed disclosed by the invention can be used for excellently improving water quality and reducing ammonia nitrogen and nitrite, has a certain purification effect on water quality, and can be popularized as a green and healthy aquaculture feed.
Although the present invention has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that various changes may be made and equivalents may be substituted without departing from the scope of the invention as defined in the claims.

Claims (7)

1. The novel feed capable of improving the bighead carp breeding density is characterized in that the nutritional raw materials comprise the following components in parts by weight: 10-20 parts of biological fermentation feed (fermentation strains are clostridium butyricum, saccharomyces cerevisiae, lactobacillus plantarum and bifidobacterium lactis), 35-45 parts of fish meal, 20-30 parts of bone meal, 25-35 parts of dried trash fish, 30-40 parts of fly maggot powder, 5-10 parts of leech powder, 20-30 parts of flour, 45-55 parts of soybean meal (CP 46%), 200 parts of rapeseed meal 100, 50-100 parts of cottonseed meal, 4-6 parts of soybean phospholipid oil, 4-6 parts of fish oil, 4-6 parts of choline chloride (60%), 4-6 parts of calcium dihydrogen phosphate, 2-4 parts of lysine (70%), 1-3 parts of methionine, 4.5-8.5 parts of composite multi-mineral, 2-3 parts of composite multi-vitamin, 1-3 parts of salt and 4-6 parts of antioxidant.
2. The novel feed capable of improving bighead carp breeding density according to claim 1, wherein the biologically fermented feed comprises the following components in parts by weight: 2-6 parts of clostridium butyricum, 1-3 parts of saccharomyces cerevisiae, 2-6 parts of lactobacillus plantarum, 2-6 parts of bifidobacterium lactis, 550 parts of bean pulp, 500 parts of rapeseed meal and 200 parts of cottonseed meal.
3. The strain added to the biological fermentation feed according to claim 2: the viable count of clostridium butyricum, saccharomyces cerevisiae, lactobacillus plantarum and bifidobacterium lactis is not lower than that of clostridium butyricum, saccharomyces cerevisiae, lactobacillus plantarum and bifidobacterium lactis3×109CFU/g。
4. The novel feed capable of improving bighead carp culture density according to claims 1-2, wherein the content of organic acid in the biological fermentation feed is more than or equal to 3%, and the number of effective viable bacteria is more than or equal to 3 x 109CFU/g。
5. The novel feed capable of improving bighead carp breeding density according to claim 1, wherein the composite polymineral is composed of the following components in parts by weight: 35 parts of methionine chelated zinc with the mass fraction of 15%, 30 parts of ferrous fumarate with the mass fraction of 30%, 2 parts of saccharomyces cerevisiae selenium with the mass fraction of 50%, 18 parts of methionine copper with the mass fraction of 15%, 30 parts of glycine manganese with the mass fraction of 22% and 40 parts of carrier.
6. The novel feed capable of improving bighead carp breeding density according to claim 1, wherein the composite multivitamins are composed of the following components in parts by weight: 40 parts of vitamin A, 40 parts of vitamin E, 45 parts of vitamin C, 330 parts of vitamin D, 5 parts of vitamin K, 20 parts of vitamin E, 16 parts of vitamin B, 216 parts of vitamin B, 65 parts of vitamin B1230 parts of calcium pantothenate, 80 parts of biotin, 30 parts of nicotinic acid, 50 parts of nicotinic acid, 25 parts of folic acid and 60 parts of carrier.
7. A preparation method of a novel feed capable of improving bighead carp breeding density is characterized by comprising the following steps:
(1) weighing the components according to the proportion of the biological fermentation feed of claim 2;
(2) uniformly mixing the components in the step (1), adjusting the water content to be 41-50%, and fermenting for 7-14 days in a sealing way at the temperature of 36-38 ℃;
(3) weighing the components according to the compound multimineral proportion of claim 4, and placing the components in a mixer to mix uniformly for 180 seconds to ensure that the mixing uniformity is below 5%;
(4) weighing the components according to the compound multi-dimensional proportion of claim 5, and placing the components in a mixer to be uniformly mixed for 180 seconds to ensure that the mixing uniformity is below 5%;
(5) uniformly mixing the biological fermentation feed, the composite multi-mineral and the composite multi-vitamin prepared in the steps (2), (3) and (4) with the other components as described in the claim 1, and granulating to obtain a novel feed capable of improving the bighead carp breeding density.
CN202011453429.8A 2020-12-12 2020-12-12 Novel feed capable of improving bighead carp breeding density and preparation method thereof Pending CN112401089A (en)

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Application publication date: 20210226