阅读说明：本技术 纳米复合抗病毒饲料添加剂及其制备方法 (Nano composite antiviral feed additive and preparation method thereof ) 是由 何新桥 于 2020-02-18 设计创作，主要内容包括：本发明涉及纳米复合抗病毒饲料添加剂及其制备方法,该饲料添加剂包括以下组分：以重量份计,稻草粉35～60份、青芦苇粉35～50份、氨基酸衍生物1.5～3.5份、复合氨基酸1～4份、胡萝卜素0.5～3.5份、0.5～1.5份维生素B1、0.5～1.5份维生素B2、0.5～1.5份维生素B5、0.5～1.5份维生素C、螺旋藻粉2～10份、熟黄豆粉2～8份、矿物质钙0.06～0.16份、磷0.06～0.16份、镁0.06～0.16份、钾0.06～0.16份、钠0.06～0.16份、硫0.03～0.14份、氯0.03～0.14份、硒0.02～0.12份、碘0.02～0.12份、铬0.02～0.12份、枯草杆菌0.5～2.5份。该饲料添加剂能增强动物自身免疫力,有效杀灭多种病毒。(The invention relates to a nano composite antiviral feed additive and a preparation method thereof, wherein the feed additive comprises the following components: 35-60 parts of rice straw powder, 35-50 parts of reed powder, 1.5-3.5 parts of amino acid derivatives, 1-4 parts of compound amino acids, 0.5-3.5 parts of carotene, 0.5-1.5 parts of vitamin B1, 0.5-1.5 parts of vitamin B2, 0.5-1.5 parts of vitamin B5, 0.5-1.5 parts of vitamin C, 2-10 parts of spirulina powder, 2-8 parts of cooked soybean powder, 0.06-0.16 part of mineral calcium, 0.06-0.16 part of phosphorus, 0.06-0.16 part of magnesium, 0.06-0.16 part of potassium, 0.06-0.16 part of sodium, 0.03-0.14 part of sulfur, 0.03-0.14 part of chlorine, 0.02-0.12 part of selenium, 0.02-0.12 part of iodine, 0.02-0.12 part of bacillus subtilis, 0.12 part of chromium and 0.5-2.5-5 parts of hay. The feed additive can enhance animal immunity and effectively kill various viruses.)

1. The nano composite antiviral feed additive is characterized by comprising the following components: 35-60 parts of rice straw powder, 35-50 parts of reed powder, 1.5-3.5 parts of amino acid derivatives, 1-4 parts of compound amino acids, 0.5-3.5 parts of carotene, 0.5-1.5 parts of vitamin B1, 0.5-1.5 parts of vitamin B2, 0.5-1.5 parts of vitamin B5, 0.5-1.5 parts of vitamin C, 2-10 parts of spirulina powder, 2-8 parts of cooked soybean powder, 0.06-0.16 part of mineral calcium, 0.06-0.16 part of phosphorus, 0.06-0.16 part of magnesium, 0.06-0.16 part of potassium, 0.06-0.16 part of sodium, 0.03-0.14 part of sulfur, 0.03-0.14 part of chlorine, 0.02-0.12 part of selenium, 0.02-0.12 part of iodine, 0.02-0.12 part of bacillus subtilis, 0.12 part of chromium and 0.5-2.5-5 parts of hay.

2. The nanocomposite antiviral feed additive according to claim 1 comprising the following components: 38-45 parts of straw powder, 38-45 parts of reed powder, 1.6-2.2 parts of amino acid derivatives, 1.2-3 parts of compound amino acids, 1-2.5 parts of carotene, 0.6-1.3 parts of vitamin B1, 0.6-1.3 parts of vitamin B2, 0.6-1.3 parts of vitamin B5, 0.6-1.3 parts of vitamin C, 3.5-6.5 parts of spirulina powder, 2-5 parts of cooked soybean powder, 0.08-0.12 part of mineral calcium, 0.08-0.12 part of phosphorus, 0.08-0.12 part of magnesium, 0.08-0.12 part of potassium, 0.08-0.12 part of sodium, 0.05-0.13 part of sulfur, 0.05-0.13 part of chlorine, 0.03-0.11 part of selenium, 0.03-0.11 part of iodine, 0.11 part of chromium, 0.03-0.11 part of bacillus subtilis and 2-2.8 parts of bacillus subtilis.

3. The nanocomposite antiviral feed additive according to claim 2 comprising the following components: 39 parts of straw powder, 41 parts of reed powder, 1.8 parts of amino acid derivatives, 1.4 parts of compound amino acid, 1.5 parts of carotene, 0.7 part of vitamin B1, 0.7 part of vitamin B2, 0.7 part of vitamin B5, 0.7 part of vitamin C, 4 parts of spirulina powder, 2.5 parts of cooked soybean powder, 0.09 part of mineral calcium, 0.09 part of phosphorus, 0.09 part of magnesium, 0.09 part of potassium, 0.09 part of sodium, 0.06 part of sulfur, 0.06 part of chlorine, 0.05 part of selenium, 0.05 part of iodine, 0.05 part of chromium and 1.2 parts of bacillus subtilis.

4. The nanocomposite antiviral feed additive according to claim 2 comprising the following components: the feed comprises, by weight, 40 parts of straw powder, 40 parts of reed powder, 2 parts of amino acid derivatives, 2 parts of compound amino acids, 2 parts of carotene, 1 part of vitamin B1, 1 part of vitamin B2, 1 part of vitamin B5, 1 part of vitamin C, 5 parts of spirulina powder, 3 parts of cooked soybean powder, 0.1 part of each of mineral calcium, phosphorus, magnesium, potassium, sodium, sulfur, chlorine, selenium, iodine and chromium, and 1 part of bacillus subtilis.

5. The nanocomposite antiviral feed additive according to claim 2 comprising the following components: 42 parts of straw powder, 44 parts of reed powder, 2.1 parts of amino acid derivatives, 2.5 parts of compound amino acids, 2.3 parts of carotene, 1.2 parts of vitamin B1, 1.2 parts of vitamin B2, 1.2 parts of vitamin B5, 1.2 parts of vitamin C, 6 parts of spirulina powder, 5 parts of cooked soybean powder, 0.12 part of mineral calcium, 0.12 part of phosphorus, 0.12 part of magnesium, 0.12 part of potassium, 0.12 part of sodium, 0.11 part of sulfur, 0.11 part of chlorine, 0.08 part of selenium, 0.08 part of iodine, 0.08 part of chromium and 1.5 parts of bacillus subtilis.

6. A method for preparing the nano composite antiviral feed additive according to any one of claims 1 to 5, which comprises the following steps:

mixing the straw powder and the reed powder according to the set proportion, and then carrying out first heating stirring to obtain a first mixture after the first heating stirring is carried out uniformly;

adding the amino acid derivative, compound amino acid, carotene, vitamin B1, vitamin B2, vitamin B5, vitamin C, spirulina powder, cooked soybean meal, mineral calcium, phosphorus, magnesium, potassium, sodium, sulfur, chlorine, selenium, iodine and chromium into the first mixture for second stirring, and forming a second mixture after uniform stirring;

cooking the second mixture;

after the second mixture is cooled, adding yeast for fermentation to obtain a first-grade semi-finished product;

adding the primary semi-finished product into a plant dispersant and purified water for grinding to obtain a secondary semi-finished product;

spray drying the second-level semi-finished product to obtain a third-level semi-finished product;

and mixing the third-stage semi-finished product with the bacillus subtilis, and then carrying out third stirring to obtain a finished product of the nano composite antiviral feed additive after uniform mixing.

7. The method for preparing a nano composite antiviral feed additive according to claim 6,

adding the straw powder and the green reed powder in a set ratio into a high-speed stirring tank for first heating and stirring, and forming a first mixture after uniform stirring;

adding the amino acid derivative, compound amino acid, carotene, vitamin B1, vitamin B2, vitamin B5, vitamin C, spirulina powder, cooked soybean meal, mineral calcium, phosphorus, magnesium, potassium, sodium, sulfur, chlorine, selenium, iodine and chromium into the high-speed stirring tank for second stirring, and forming a second mixture after uniform stirring;

placing the second mixture in a steamer for steaming;

after the second mixture is cooled, adding yeast into the second mixture, and placing the mixture into a wooden barrel for fermentation to obtain a first-grade semi-finished product;

placing the primary semi-finished product into a sand mill, adding the plant dispersing agent and purified water, and grinding to obtain a secondary semi-finished product;

placing the second-level semi-finished product in spray drying equipment for spray drying to obtain a third-level semi-finished product;

and adding the third-stage semi-finished product and the bacillus subtilis into a stirring tank for third stirring, and forming a finished product of the nano composite antiviral feed additive after uniform stirring.

8. The method for preparing a nano composite antiviral feed additive according to claim 6,

the temperature of the first heating and stirring is controlled to be 85-90 ℃, and the time is controlled to be 50-80 minutes;

the second stirring time is controlled to be 12-25 minutes;

the cooking time is controlled to be 10-30 minutes;

the fermentation time is controlled to be 150-180 hours;

the grinding time is controlled to be 72-90 minutes;

and the time of the third stirring is controlled to be 30-45 minutes.

9. The method for preparing a nanocomposite antiviral feed additive according to claim 8,

the temperature of the first heating and stirring is controlled to be 90 ℃, and the time is controlled to be 60 minutes;

the time of the second stirring is controlled to be 15 minutes;

the cooking time is controlled to be 15 minutes;

the fermentation time is controlled at 168 hours;

the grinding time is controlled to be 84 minutes;

the time of the third stirring was controlled to 30 minutes.

10. The method for preparing a nanocomposite antiviral feed additive according to claim 7,

in the first heating and stirring process, the rotating speed of the high-speed stirring tank is controlled to be 3200 revolutions per minute;

in the second stirring process, the rotating speed of the high-speed stirring tank is controlled to be 1000 revolutions per minute;

in the third stirring process, the stirring speed is controlled to be 120 revolutions per minute;

the additive amount of the yeast is 12-18 parts by weight, the additive amount of the plant additive is 80-120 parts by weight, and the additive amount of the purified water is 900-1200 parts by weight.

Technical Field

The invention relates to the technical field of biological products, in particular to a nano-composite antiviral feed additive and a preparation method thereof.

Background

After crops are harvested, straw treatment is a big problem faced by farmers and governments, the environment is seriously polluted by burning straws, the farmers rely on government supervision and fine, and the criminal farmers are the lower policy of treating symptoms but not root causes, and the planting is influenced by not burning the straws.

With the rapid development of the feed industry, a large number of synthetic feed additives, such as antibiotics, growth promoters, insect repellents, hormones, flavors and modifiers, preservatives, etc., are commonly added to feeds. The application of these additives has a great promoting effect on the development of animal husbandry, but also brings negative effects, and especially the problems of bacterial drug resistance and veterinary drug residues in animal products are increasingly serious due to the large use of chemicals represented by antibiotics, so that attention and worry of wide consumers are caused. The addition of antibiotics to feed has now been banned or restricted by legislative means in some countries and regions.

The straw stalk and the reed belong to the herbaceous family, have medicinal value, if the straw stalk and the reed can be synthesized into a novel feed additive with a plurality of amino acids, a plurality of vitamins and a plurality of mineral substances by utilizing the biotechnology to replace the traditional feed additive, the development of the animal husbandry to the green and healthy direction can be promoted, and the feed additive has obvious market prospect and economic value.

Disclosure of Invention

The invention provides a nano composite antiviral feed additive and a preparation method thereof, solves the technical problem that the traditional feed additive in the prior art contains antibiotics, hormones and the like and is not beneficial to green development of animal husbandry, and realizes the technical effects of synthesizing a novel feed additive by utilizing biotechnology, enhancing the autoimmunity of animals and effectively killing various viruses.

The invention provides a nano composite antiviral feed additive, which comprises the following components: 35-60 parts of rice straw powder, 35-50 parts of reed powder, 1.5-3.5 parts of amino acid derivatives, 1-4 parts of compound amino acids, 0.5-3.5 parts of carotene, 0.5-1.5 parts of vitamin B1, 0.5-1.5 parts of vitamin B2, 0.5-1.5 parts of vitamin B5, 0.5-1.5 parts of vitamin C, 2-10 parts of spirulina powder, 2-8 parts of cooked soybean powder, 0.06-0.16 part of mineral calcium, 0.06-0.16 part of phosphorus, 0.06-0.16 part of magnesium, 0.06-0.16 part of potassium, 0.06-0.16 part of sodium, 0.03-0.14 part of sulfur, 0.03-0.14 part of chlorine, 0.02-0.12 part of selenium, 0.02-0.12 part of iodine, 0.02-0.12 part of bacillus subtilis, 0.12 part of chromium and 0.5-2.5-5 parts of hay.

Preferably, the following components are included: 38-45 parts of straw powder, 38-45 parts of reed powder, 1.6-2.2 parts of amino acid derivatives, 1.2-3 parts of compound amino acids, 1-2.5 parts of carotene, 0.6-1.3 parts of vitamin B1, 0.6-1.3 parts of vitamin B2, 0.6-1.3 parts of vitamin B5, 0.6-1.3 parts of vitamin C, 3.5-6.5 parts of spirulina powder, 2-5 parts of cooked soybean powder, 0.08-0.12 part of mineral calcium, 0.08-0.12 part of phosphorus, 0.08-0.12 part of magnesium, 0.08-0.12 part of potassium, 0.08-0.12 part of sodium, 0.05-0.13 part of sulfur, 0.05-0.13 part of chlorine, 0.03-0.11 part of selenium, 0.03-0.11 part of iodine, 0.11 part of chromium, 0.03-0.11 part of bacillus subtilis and 2-2.8 parts of bacillus subtilis.

Preferably, the following components are included: 39 parts of straw powder, 41 parts of reed powder, 1.8 parts of amino acid derivatives, 1.4 parts of compound amino acid, 1.5 parts of carotene, 0.7 part of vitamin B1, 0.7 part of vitamin B2, 0.7 part of vitamin B5, 0.7 part of vitamin C, 4 parts of spirulina powder, 2.5 parts of cooked soybean powder, 0.09 part of mineral calcium, 0.09 part of phosphorus, 0.09 part of magnesium, 0.09 part of potassium, 0.09 part of sodium, 0.06 part of sulfur, 0.06 part of chlorine, 0.05 part of selenium, 0.05 part of iodine, 0.05 part of chromium and 1.2 parts of bacillus subtilis.

Preferably, the following components are included: the feed comprises, by weight, 40 parts of straw powder, 40 parts of reed powder, 2 parts of amino acid derivatives, 2 parts of compound amino acids, 2 parts of carotene, 1 part of vitamin B1, 1 part of vitamin B2, 1 part of vitamin B5, 1 part of vitamin C, 5 parts of spirulina powder, 3 parts of cooked soybean powder, 0.1 part of each of mineral calcium, phosphorus, magnesium, potassium, sodium, sulfur, chlorine, selenium, iodine and chromium, and 1 part of bacillus subtilis.

Preferably, the following components are included: 42 parts of straw powder, 44 parts of reed powder, 2.1 parts of amino acid derivatives, 2.5 parts of compound amino acids, 2.3 parts of carotene, 1.2 parts of vitamin B1, 1.2 parts of vitamin B2, 1.2 parts of vitamin B5, 1.2 parts of vitamin C, 6 parts of spirulina powder, 5 parts of cooked soybean powder, 0.12 part of mineral calcium, 0.12 part of phosphorus, 0.12 part of magnesium, 0.12 part of potassium, 0.12 part of sodium, 0.11 part of sulfur, 0.11 part of chlorine, 0.08 part of selenium, 0.08 part of iodine, 0.08 part of chromium and 1.5 parts of bacillus subtilis.

Based on the same inventive concept, the application also provides a preparation method of the nano-composite antiviral feed additive, which comprises the following steps:

mixing the straw powder and the reed powder according to the set proportion, and then carrying out first heating stirring to obtain a first mixture after the first heating stirring is carried out uniformly;

adding the amino acid derivative, compound amino acid, carotene, vitamin B1, vitamin B2, vitamin B5, vitamin C, spirulina powder, cooked soybean meal, mineral calcium, phosphorus, magnesium, potassium, sodium, sulfur, chlorine, selenium, iodine and chromium into the first mixture for second stirring, and forming a second mixture after uniform stirring;

cooking the second mixture;

after the second mixture is cooled, adding yeast for fermentation to obtain a first-grade semi-finished product;

adding the primary semi-finished product into a plant dispersant and purified water for grinding to obtain a secondary semi-finished product;

spray drying the second-level semi-finished product to obtain a third-level semi-finished product;

and mixing the third-stage semi-finished product with the bacillus subtilis, and then carrying out third stirring to obtain a finished product of the nano composite antiviral feed additive after uniform mixing.

Preferably, the straw powder and the green reed powder in a set ratio are added into a high-speed stirring tank for first heating and stirring, and a first mixture is formed after the first heating and stirring are uniform;

adding the amino acid derivative, compound amino acid, carotene, vitamin B1, vitamin B2, vitamin B5, vitamin C, spirulina powder, cooked soybean meal, mineral calcium, phosphorus, magnesium, potassium, sodium, sulfur, chlorine, selenium, iodine and chromium into the high-speed stirring tank for second stirring, and forming a second mixture after uniform stirring;

placing the second mixture in a steamer for steaming;

after the second mixture is cooled, adding yeast into the second mixture, and placing the mixture into a wooden barrel for fermentation to obtain a first-grade semi-finished product;

placing the primary semi-finished product into a sand mill, adding the plant dispersing agent and purified water, and grinding to obtain a secondary semi-finished product;

placing the second-level semi-finished product in spray drying equipment for spray drying to obtain a third-level semi-finished product;

and adding the third-stage semi-finished product and the bacillus subtilis into a stirring tank for third stirring, and forming a finished product of the nano composite antiviral feed additive after uniform stirring.

Preferably, the temperature of the first heating and stirring is controlled to be 85-90 ℃, and the time is controlled to be 50-80 minutes;

the second stirring time is controlled to be 12-25 minutes;

the cooking time is controlled to be 10-30 minutes;

the fermentation time is controlled to be 150-180 hours;

the grinding time is controlled to be 72-90 minutes;

and the time of the third stirring is controlled to be 30-45 minutes.

Preferably, the temperature of the first heating and stirring is controlled to be 90 ℃, and the time is controlled to be 60 minutes;

the time of the second stirring is controlled to be 15 minutes;

the cooking time is controlled to be 15 minutes;

the fermentation time is controlled at 168 hours;

the grinding time is controlled to be 84 minutes;

the time of the third stirring was controlled to 30 minutes.

Preferably, in the first heating and stirring process, the rotating speed of the high-speed stirring tank is controlled to be 3200 revolutions per minute;

in the second stirring process, the rotating speed of the high-speed stirring tank is controlled to be 1000 revolutions per minute;

in the third stirring process, the stirring speed is controlled to be 120 revolutions per minute;

the additive amount of the yeast is 12-18 parts by weight, the additive amount of the plant additive is 80-120 parts by weight, and the additive amount of the purified water is 900-1200 parts by weight.

One or more technical solutions provided in the embodiments of the present application have at least the following technical effects or advantages:

by applying biotechnology, the novel feed additive is synthesized by reasonably proportioning straw stalks, reeds, various amino acids, various vitamins and various mineral substances through a scientific preparation process, so that the recycling of crop resources is realized, meanwhile, the drug abuse and residue caused by antibiotics and hormones are avoided, the animal immunity can be enhanced, various viruses are effectively killed, and the green and healthy development of animal husbandry is promoted.

Drawings

Fig. 1 is a schematic flow chart of a preparation method of a nanocomposite antiviral feed additive provided in an embodiment of the present application.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more apparent, embodiments of the present invention will be described in detail with reference to the accompanying drawings.

The invention provides a nano composite antiviral feed additive, which comprises the following components: 35-60 parts of rice straw powder, 35-50 parts of reed powder, 1.5-3.5 parts of amino acid derivatives, 1-4 parts of compound amino acids, 0.5-3.5 parts of carotene, 0.5-1.5 parts of vitamin B1, 0.5-1.5 parts of vitamin B2, 0.5-1.5 parts of vitamin B5, 0.5-1.5 parts of vitamin C, 2-10 parts of spirulina powder, 2-8 parts of cooked soybean powder, 0.06-0.16 part of mineral calcium, 0.06-0.16 part of phosphorus, 0.06-0.16 part of magnesium, 0.06-0.16 part of potassium, 0.06-0.16 part of sodium, 0.03-0.14 part of sulfur, 0.03-0.14 part of chlorine, 0.02-0.12 part of selenium, 0.02-0.12 part of iodine, 0.02-0.12 part of bacillus subtilis, 0.12 part of chromium and 0.5-2.5-5 parts of hay.

The straw stalk and reed belong to the herbaceous family and have medicinal value. Carotene has effects of suppressing immunoreaction of immunocompetent cells, quenching peroxide causing immunosuppression, maintaining fluid fluidity of membrane, maintaining membrane receptor state necessary for immunologic function, and releasing immunoregulatory molecule. The spirulina powder can be classified into feed grade, food grade, special purpose, etc. The feed-grade spirulina powder can be used for aquaculture and livestock breeding, and the food-grade spirulina powder is used for health food and added into other foods for people to eat. The cooked soybean powder is powder prepared by frying and grinding soybeans, and the contained unsaturated fatty acid and soybean lecithin can increase the elasticity of blood vessels and prevent the blood vessels from being broken due to the aging of the blood vessels; the cooked soybean powder contains dietary fiber which can increase satiety of human body and promote defecation, and contains high-quality vegetable protein which can supplement amino acid required by human body.

An amino acid is a compound in which a hydrogen atom on a carbon atom of a carboxylic acid is substituted with an amino group, and the amino acid molecule contains both amino and carboxyl functional groups. Amino acids, like hydroxy acids, can be classified as α -, β -, γ -, w-amino acids according to the position of the amino group attached to the carbon chain, but the amino acids obtained after proteolysis are all α -amino acids, and only twenty, which are the basic units constituting proteins.

Minerals are compounds or natural elements naturally occurring in the crust of the earth. Also called inorganic salt, is a general term for inorganic substances in human and animals. Is a general term for various elements which are necessary for forming tissues of human bodies and animals and maintaining normal physiological functions, and is one of seven essential nutrients for human bodies and animals. Minerals, like vitamins, are essential elements for the human body.

The bacillus subtilis is active substances such as subtilin, polymyxin, nystatin, gramicidin and the like generated in the growth process of bacillus subtilis and has obvious inhibiting effect on pathogenic bacteria or conditional pathogenic bacteria of endogenous infection. The Bacillus subtilis can stimulate the growth and development of animal immune organs, activate T, B lymphocytes, increase immunoglobulin and antibody levels, enhance cellular immunity and humoral immunity, and improve population immunity.

The novel feed additive is synthesized by reasonably proportioning the straw stalks and the reeds with various amino acids, various vitamins and various mineral substances, so that the recycling of crop resources is realized, meanwhile, the drug abuse and residue caused by antibiotics and hormones are avoided, the animal immunity can be enhanced, and various viruses, especially hog cholera viruses, can be effectively killed.

Further, the nano composite antiviral feed additive comprises the following components: 38-45 parts of straw powder, 38-45 parts of reed powder, 1.6-2.2 parts of amino acid derivatives, 1.2-3 parts of compound amino acids, 1-2.5 parts of carotene, 0.6-1.3 parts of vitamin B1, 0.6-1.3 parts of vitamin B2, 0.6-1.3 parts of vitamin B5, 0.6-1.3 parts of vitamin C, 3.5-6.5 parts of spirulina powder, 2-5 parts of cooked soybean powder, 0.08-0.12 part of mineral calcium, 0.08-0.12 part of phosphorus, 0.08-0.12 part of magnesium, 0.08-0.12 part of potassium, 0.08-0.12 part of sodium, 0.05-0.13 part of sulfur, 0.05-0.13 part of chlorine, 0.03-0.11 part of selenium, 0.03-0.11 part of iodine, 0.11 part of chromium, 0.03-0.11 part of bacillus subtilis and 2-2.8 parts of bacillus subtilis.

As a first preferred embodiment, the nanocomposite antiviral feed additive comprises the following components: 39 parts of straw powder, 41 parts of reed powder, 1.8 parts of amino acid derivatives, 1.4 parts of compound amino acid, 1.5 parts of carotene, 0.7 part of vitamin B1, 0.7 part of vitamin B2, 0.7 part of vitamin B5, 0.7 part of vitamin C, 4 parts of spirulina powder, 2.5 parts of cooked soybean powder, 0.09 part of mineral calcium, 0.09 part of phosphorus, 0.09 part of magnesium, 0.09 part of potassium, 0.09 part of sodium, 0.06 part of sulfur, 0.06 part of chlorine, 0.05 part of selenium, 0.05 part of iodine, 0.05 part of chromium and 1.2 parts of bacillus subtilis.

As a second preferred embodiment, the nanocomposite antiviral feed additive comprises the following components: the feed comprises, by weight, 40 parts of straw powder, 40 parts of reed powder, 2 parts of amino acid derivatives, 2 parts of compound amino acids, 2 parts of carotene, 1 part of vitamin B1, 1 part of vitamin B2, 1 part of vitamin B5, 1 part of vitamin C, 5 parts of spirulina powder, 3 parts of cooked soybean powder, 0.1 part of each of mineral calcium, phosphorus, magnesium, potassium, sodium, sulfur, chlorine, selenium, iodine and chromium, and 1 part of bacillus subtilis.

As a third preferred embodiment, the nanocomposite antiviral feed additive comprises the following components: 42 parts of straw powder, 44 parts of reed powder, 2.1 parts of amino acid derivatives, 2.5 parts of compound amino acids, 2.3 parts of carotene, 1.2 parts of vitamin B1, 1.2 parts of vitamin B2, 1.2 parts of vitamin B5, 1.2 parts of vitamin C, 6 parts of spirulina powder, 5 parts of cooked soybean powder, 0.12 part of mineral calcium, 0.12 part of phosphorus, 0.12 part of magnesium, 0.12 part of potassium, 0.12 part of sodium, 0.11 part of sulfur, 0.11 part of chlorine, 0.08 part of selenium, 0.08 part of iodine, 0.08 part of chromium and 1.5 parts of bacillus subtilis.

Based on the same inventive concept, the application also provides a preparation method of the nano-composite antiviral feed additive, which comprises the following steps in the attached figure 1:

s1: mixing the straw powder and the reed powder in a set ratio, and then carrying out first heating and stirring to obtain a first mixture after the mixture is uniform;

s2: adding amino acid derivatives, compound amino acids, carotene, vitamin B1, vitamin B2, vitamin B5, vitamin C, spirulina powder, cooked soybean meal, mineral substances of calcium, phosphorus, magnesium, potassium, sodium, sulfur, chlorine, selenium, iodine and chromium into the first mixture, and stirring uniformly to form a second mixture;

s3: cooking the second mixture;

s4: after the second mixture is cooled, adding yeast for fermentation to obtain a first-grade semi-finished product;

s5: adding the primary semi-finished product into a plant dispersant and purified water for grinding to obtain a secondary semi-finished product;

s6: spray drying the second-level semi-finished product to obtain a third-level semi-finished product;

s7: and mixing the third-stage semi-finished product with bacillus subtilis, and then carrying out third stirring to obtain a finished product of the nano composite antiviral feed additive after uniform mixing.

As a preferred embodiment, the preparation method comprises the following steps:

s1: adding straw powder and reed powder in a set ratio into a high-speed stirring tank for first heating and stirring, and forming a first mixture after uniform stirring;

s2: adding amino acid derivatives, compound amino acids, carotene, vitamin B1, vitamin B2, vitamin B5, vitamin C, spirulina powder, cooked soybean meal, mineral substances of calcium, phosphorus, magnesium, potassium, sodium, sulfur, chlorine, selenium, iodine and chromium into the high-speed stirring tank for second stirring, and uniformly stirring to form a second mixture;

s3: placing the second mixture in a steamer for steaming;

s4: after the second mixture is cooled, adding yeast into the second mixture, and placing the mixture into a wooden barrel for fermentation to obtain a first-grade semi-finished product;

s5: placing the primary semi-finished product into a sand mill, adding a plant dispersant and purified water, and grinding to obtain a secondary semi-finished product;

s6: placing the second-level semi-finished product in spray drying equipment for spray drying to obtain a third-level semi-finished product;

s7: and adding the third-stage semi-finished product and the bacillus subtilis into a stirring tank for third stirring, and uniformly stirring to form a finished product of the nano composite antiviral feed additive.

Further, the temperature of the first heating and stirring is controlled to be 85-90 ℃, and the time is controlled to be 50-80 minutes; the second stirring time is controlled to be 12-25 minutes; the cooking time is controlled to be 10-30 minutes; the fermentation time is controlled to be 150-180 hours; the grinding time is controlled to be 72-90 minutes; the third stirring time is controlled to be 30-45 minutes.

As a preferred embodiment, the temperature of the first warming and stirring is controlled to be 90 ℃ and the time is controlled to be 60 minutes; the time of the second stirring is controlled to be 15 minutes; the cooking time is controlled to be 15 minutes; the fermentation time is controlled at 168 hours; the grinding time is controlled to be 84 minutes; the time for the third stirring was controlled to 30 minutes.

Further, in the first heating and stirring process, the rotating speed of the high-speed stirring tank is controlled to be 3200 revolutions per minute; in the second stirring process, the rotating speed of the high-speed stirring tank is controlled to be 1000 revolutions per minute; in the third stirring process, the stirring speed is controlled to be 120 revolutions per minute, the addition amount of the yeast is 12-18 parts by weight, the addition amount of the plant additive is 80-120 parts by weight, and the addition amount of the purified water is 900-1200 parts by weight.

The preparation method of the nanocomposite antiviral feed additive of the present application is described in detail by the following specific examples, all the raw materials are calculated by weight: