CN106359940A - Herbivorous animal mixed feed and preparation method thereof - Google Patents

Abstract

The invention belongs to the technical field of feed processing, and in particular relates to mixed feed for herbivores. The mixed feed consists of the following raw materials in parts by weight: 120-140 parts of straw, 10-18 parts of corn flour, 8-15 parts of soybean meal, and 5-5 parts of distiller's grain powder. 12 parts, 6-10 parts of pine needles, 4-8 parts of yeast powder, 2-6 parts of sucrose molasses, 2-6 parts of premix and 0.2-0.8 parts of rumen-passed methionine. The raw materials of the mixed feed are weighed, and then the straw pretreatment, mixing treatment, aging of the mixed powder, granulation and packaging are carried out in sequence to obtain the finished mixed feed. The mixed feed of the present invention has low cost, high benefit, comprehensive nutritional value and high cellulose content , good palatability, and easy to store and transport without deterioration.

Description

Herbivore mixed feed and preparation method thereof

technical field

The invention belongs to the technical field of feed processing, and in particular relates to a herbivore mixed feed and a preparation method thereof.

Background technique

With the rapid development of my country's aquaculture industry, the market for feed raw materials is in short supply, especially the shortage of protein feed grains. By making full use of various straw resources, we have developed straw feed for herbivores, which can not only improve the nutritional value of straw, but also turn waste into waste. Treasure, reduce feeding costs, improve the breeding benefits of herbivores, promote the overall development of the breeding industry, and have good economic, social and ecological benefits.

The so-called Total Mixed Ration (TMR for short) is a formula provided according to nutritional standards for crude protein, energy, crude fiber, minerals and vitamins, etc., according to the nutritional needs of ruminants (cattle, sheep, etc.), adding certain After nutrient composition, through a special production process, it is made into a mixed pellet feed for herbivores. Currently, the feeds for cattle, cattle, rabbits, and grass carp on the market do not use plant fiber suitable for the digestion of herbivores as the main raw material. Corn, soybean meal and other non-plant fibers are used as the main raw materials, and the fiber content is very small, which is not suitable for the digestion of herbivores, nor can it meet the requirements of herbivores to absorb comprehensive nutrition.

Contents of the invention

The object of the present invention is to provide herbivore mixed feed and preparation method thereof. The mixed feed of the present invention has comprehensive nutritional value, high cellulose content and good palatability. In order to achieve the above-mentioned purpose of the invention, the technical scheme adopted in the present invention is as follows:

According to one aspect of the present invention, a mixed feed for herbivores is provided. The mixed feed is composed of the following raw materials in parts by weight: 120-140 parts of straw, 10-18 parts of corn flour, 8-15 parts of soybean meal, 5-12 parts of distiller's grains 6-10 parts of pine needles, 4-8 parts of yeast powder, 2-6 parts of sucrose molasses, 2-6 parts of premix and 0.2-0.8 parts of rumen-passed methionine.

Preferably, the mixed feed consists of the following raw materials in parts by weight: 130 parts of straw, 15 parts of corn flour, 12 parts of soybean meal, 8 parts of distiller's grain powder, 8 parts of pine needles, 6 parts of yeast powder, 4 parts of sucrose molasses, 5 parts of mixed material and 0.5 part of rumen-passed methionine.

Preferably, the straw is one or more of grass, corn straw, sugarcane leaf tail straw, peanut straw, cassava straw, alfalfa straw, sorghum straw, wheat straw, soybean straw, cotton straw, and the sucrose molasses The sugar content is: 46% to 55%, high-grade sucrose molasses containing 0.2 to 20,000 to 20,000 beneficial microorganisms/g; sucrose molasses is rich in protein, organic acids, natural minerals and multivitamins, which can quickly It is digested and absorbed by herbivores, which promotes the nutrient metabolism of animals, and its unique sweetness improves the palatability of herbivores, increases the caloric value of feed, improves the aroma of feed, thereby increasing the animal's appetite for feed and improving the quality of feed pellets. The effect and quality of the pellet feed, while improving the dust rate of the pellet feed during transportation, storage, transportation and feeding, resulting in waste of feed, at the same time as a binder for granulation, it also improves the variation of the mixing uniformity of the pellet feed coefficient.

Preferably, the premix contains salt, calcium hydrogen phosphate, vitamin premix, and baking soda, and the specific gravity of the salt, calcium hydrogen phosphate, vitamin premix, and baking soda is 4-7:22-27 :3～6:1～3. The vitamin premix contains fat-soluble and water-soluble vitamin components (vitamins A, D, E, K and vitamins B1, B2, B12, niacin, pantothenic acid, biotin, etc.), which can supplement vitamins that cannot be synthesized by animals themselves. , to promote animal growth and development.

Preferably, the content of calcium in the calcium hydrogen phosphate is 25.00%-28.00%, and the content of phosphorus is 18.00%-22.00%.

According to another aspect of the present invention, a method for preparing a herbivore mixed feed is provided, comprising the following steps:

a. Weigh the raw materials of the mixed feed by parts by weight: straw, corn flour, soybean meal, distiller's grain powder, pine needles, yeast powder, sucrose molasses, premix and rumen-passed methionine;

b. Straw pretreatment: Cut the fresh straw into small pieces, then send the cut straw into the rotatable drying cylinder for the first drying, and the moisture content will reach 38.00% to 45.00%. The dried straw is crushed into granules of 0.5cm~1cm, and then the straw crushed into granules is sent to the rotating drying drum for the second drying to a moisture content of 27%~32%, and the pretreated straw material is obtained ;

c. Mixing treatment: first dry the fresh pine needles to a moisture content of 25% to 35%, and then crush them into powder to obtain pine needle powder. In the pretreated straw material, corn flour, soybean meal, distiller's grains powder, pine needle powder, Feed the yeast powder, premix and rumen-passed methionine into the mixer, and mix and stir for 3-8 minutes to obtain a uniform mixed powder;

d. Aging of the mixed powder: send the mixed powder into the conditioning chamber of high-pressure steam for 30-60 seconds for curing, so that the degree of curing is 22.00%-28.00%, and then sieve and pulverize into particles of 0.5mm-1.5mm, and then Cool to normal temperature to obtain mixed clinker;

e. Granulation and packaging: Dry the mixed clinker until the moisture content reaches 10% to 15%, then extrude and granulate, and then carry out vacuum cooling. When the cooling temperature of the mixed pellet feed is -1°C to 10°C , implementing packaging treatment to obtain the finished herbivore mixed feed product.

Preferably, in the straw pretreatment in the step a, the straw cut into small pieces is sent into the rotating drying drum for the first drying, and high-temperature air is used for drying, and high-temperature air is used for the first drying. The temperature during drying is 380°C-450°C, the length of the straw cut into small pieces is 2cm-6cm, and the rotation speed of the drying cylinder is 50rpm/min-70rpm/min;

Preferably, in the straw pretreatment in the step a, the straw crushed into particles is sent to the rotating drying drum again for the second drying, and high-temperature air is used for drying, and high-temperature air is used for the second drying. The temperature during drying is 400°C-500°C, the rotating speed of the drying cylinder is 60rpm/min-90rpm/min, the chain motor adopted in the present invention is connected with the rotary bearing at the inlet end of the drying cylinder to drive the rotation, At the entrance of one end of the drying cylinder, the feed and high-temperature air are sent into the drying cylinder at the same time, and the other end of the drying cylinder is respectively provided with a discharge port and a hot gas collection port. The length of the drying cylinder is not less than 18m. The inlet end of the drying cylinder is larger than the outlet end and is in the shape of a circular platform. The motor drives the drying cylinder to rotate, so that the feed is fully and evenly distributed from the inlet end to the outlet end. Drying, and the feed can be automatically discharged from the outlet end of the drying cylinder, and the feed is evenly dispersed.

Preferably, the speed of mixing in step c is 300-400 rpm/min, and the coefficient of variation of mixing uniformity of the uniformly mixed powder is 2.5%-4%.

Preferably, in the step e, the mixed clinker is dried with high-temperature air, the temperature of the high-temperature air is 350°C-400°C, and the particle size during extrusion granulation is 3mm-10mm .

Among the raw materials used in the present invention, straw can use fiber raw materials as the main feed raw material for herbivores, which is determined according to the digestion characteristics of herbivores, which is obviously different from traditional herbivore feeds that do not use fibrous raw materials as main raw materials, and is more It conforms to the digestive characteristics of herbivores and the digestion and absorption of nutrients, and avoids the major problems of animal anorexia and death that are not caused by not using fibrous raw materials as the main raw material; corn flour can supplement energy for animals; Soybean meal can increase the protein content of feed and supplement protein to animals; distiller's grains powder can help animals digest and increase some nutrients such as amino acids; yeast powder can effectively improve the digestive environment of animals' stomachs and speed up the fermentation, decomposition and digestion of feed; premix The material can supplement vitamins and trace elements to animals, balance nutrition, and meet the needs of animals for vitamins and trace elements; rumen-passed methionine can effectively prevent the microorganisms in the animal stomach from consuming the necessary amino acids for animals, and it is an amino acid that animals can absorb and utilize; pine needles It is a low-energy, high-protein raw material rich in amino acids, vitamins and various trace elements necessary for the growth and development of animals. It can overcome the shortcomings of low protein content and high digestibility in feed, and can effectively stimulate the growth and development of animals. Appetite, promote the digestion and absorption and metabolism of herbivores, improve feed utilization, accelerate the growth and development of herbivores, enhance animal disease resistance and improve reproductive function, etc. More mellow and more effective in improving the palatability of the feed.

Due to the adoption of the above-mentioned technical scheme, the present invention has the following technical effects:

1. Low cost and high benefit. The herbivore mixed feed produced by the present invention is prepared based on plant straws, which not only solves the problem of straws being destroyed in the fields or directly incinerated to pollute the environment, but also reduces the feed cost of breeding animals under intensive house feeding conditions, and improves the economic benefits of breeding , ecological and social benefits.

2. Comprehensive nutritional value, high cellulose content and good palatability. The preparation method of the invention chops, dries and pulverizes the straw, adds a certain proportion of nutrients and mixes it to make pellet feed, the volume ratio is reduced, the hardness of the straw is improved, the loss and waste of feed is effectively reduced, and the utilization of feed is improved. High efficiency, palatability and nutritional value. Straw accounts for more than 60% to 70% of the total raw materials, and the total protein content in it is 10% to 12%. It has comprehensive nutritional value, high cellulose content, and good palatability. It is suitable for cattle , sheep, rabbits and other animals in various growth stages are eaten.

3. It is easy to store and transport, and will not deteriorate. The invention can better control the water content in the feed during the processing process, and the prepared granular feed has strong mildew resistance, is not easy to mildew, and can be stored for a long time at a temperature of -10°C to 40°C for 1 to 10 minutes. In 2 years, the problem of feed for large-scale intensive farming of herbivores was effectively solved.

detailed description

In order to make the object, technical solution and advantages of the present invention clearer, preferred embodiments are given below to further describe the present invention in detail. However, it should be noted that many of the details listed in the specification are only for readers to have a thorough understanding of one or more aspects of the present invention, and these aspects of the present invention can be implemented even without these specific details.

One, preparation embodiment

Example 1:

According to one aspect of the present invention, a mixed feed for herbivores is provided. The mixed feed is composed of the following raw materials in parts by weight: 140 parts of straw, 10 parts of corn flour, 8 parts of soybean meal, 5 parts of distiller's grains powder, 6 parts of pine needles, yeast powder 4 parts, 2 parts of sucrose molasses, 2 parts of premix and 0.2 part of rumen-passed methionine; the premix includes salt, calcium hydrogen phosphate, vitamin premix, baking soda, and the salt, calcium hydrogen phosphate, vitamin The specific gravity of the premix and baking soda is 4:22:6:3, and the sugar content of the sucrose molasses is 46%, which contains 20,000 beneficial microbes/g high-grade sucrose molasses.

According to one aspect of the present invention, a method for preparing herbivore mixed feed is provided, comprising the following steps:

a. Weigh the raw materials of the mixed feed by parts by weight: straw, corn flour, soybean meal, pine needles, distiller's grains powder, yeast powder, sucrose molasses, premix and rumen-passed methionine;

b. Straw pretreatment: Cut the fresh straw into small pieces, and then send the cut straw into the rotatable drying cylinder for the first drying, and the moisture content will reach 45.00%. The straw is crushed into particles of 0.5 cm, and then the straw crushed into particles is sent to the rotating drying drum for the second time to dry the moisture content to 27%, so as to obtain the pretreated straw material; in this embodiment, the The straw cut into small pieces is sent into the rotating drying cylinder for the first drying, and the high-temperature air is used for drying, and the temperature for the first drying is 450°C. The length of the drying cylinder is 6cm, and the rotating speed of the drying cylinder is 50rpm/min; Drying, the temperature when using high-temperature air for the second drying is 400°C, and the rotating speed of the drying drum is 60rpm/min;

c. Mixing treatment: fresh pine needles are first dried to a moisture content of 25%, and then crushed into powder to obtain pine needle powder. In the pretreated straw material, corn flour, soybean meal, distiller's grains powder, pine needle powder, yeast powder, The premix and rumen-passed methionine are fed into the mixer, mixed and stirred for 3 minutes to obtain a uniform mixed powder, the speed of the mixing and stirred is 3000 rpm/min, and the coefficient of variation of the uniformity of the uniform mixed powder obtained is 4%;

d. Aging of the mixed powder: send the mixed powder into the conditioning chamber of high-pressure steam for 30 seconds for curing, so that the degree of curing is 22.00%, then sieve and pulverize into 0.5mm particles, and then cool to room temperature to obtain the mixed powder. clinker;

e, granulation and packaging: dry the mixed clinker until the moisture content reaches 10%, then carry out extrusion granulation, and then carry out vacuum cooling, when the temperature of the mixed pellet feed cooling is -1 ℃, implement packaging treatment, get The finished product of herbivore mixed feed; the mixed clinker is dried with high-temperature air, the temperature of the high-temperature air is 350° C., and the particle size diameter during extrusion granulation is 3 mm.

In this example, straw accounts for more than 70% of the total amount of all raw materials. The nutrient components contained in the herbivore mixed feed of this example are as follows: the total protein content is 11.4%, the total sugar content is 26%, and the cellulose content The fat content is 1.6%, the total calcium content is 0.7%, and the total phosphorus content is 0.5%.

Example 2:

According to one aspect of the present invention, a mixed feed for herbivores is provided, and the mixed feed is composed of the following raw materials in parts by weight: 120 parts of straw, 18 parts of corn flour, 15 parts of soybean meal, 12 parts of distiller's grains powder, 10 parts of pine needles, yeast powder 8 parts, 6 parts of sucrose molasses, 6 parts of premix and 0.8 part of rumen-passed methionine; the premix includes salt, calcium hydrogen phosphate, vitamin premix, baking soda, and the salt, calcium hydrogen phosphate, vitamin The specific gravity of the premix and baking soda is 7:27:3:1, and the sugar content of the sucrose molasses is 55%, high-grade sucrose molasses containing 20,000 beneficial microorganisms/g.

According to one aspect of the present invention, a method for preparing herbivore mixed feed is provided, comprising the following steps:

a. Weigh the raw materials of the mixed feed by parts by weight: straw, corn flour, soybean meal, pine needles, distiller's grains powder, yeast powder, sucrose molasses, premix and rumen-passed methionine;

b. Straw pretreatment: Cut the fresh straw into small pieces, and then send the cut straw into the rotatable drying cylinder for the first drying, and the moisture content will reach 38.00%. The stalks are crushed into granules of 1 cm, and then the stalks crushed into granules are sent to the rotating drying cylinder for the second drying to obtain a pretreated straw material; in this embodiment, the cut The small pieces of straw are sent into the rotating drying drum for the first drying, and the high temperature air is used for drying, and the temperature for the first drying is 380 °C. The length is 2cm, and the rotating speed of the drying drum is 70rpm/min; Drying, the temperature when using high-temperature air for the second drying is 500°C, and the rotating speed of the drying drum is 90rpm/min;

c. Mixing treatment: fresh pine needles are first dried to a moisture content of 35%, and then crushed into powder to obtain pine needle powder. In the pretreated straw material, corn flour, soybean meal, distiller's grains powder, pine needle powder, yeast powder, The premix and rumen-passed methionine were sent into the mixer, and mixed and stirred for 8 minutes to obtain a uniform mixed powder. The mixing speed was 400 rpm/min, and the coefficient of variation of the uniformity of the uniform mixed powder obtained was 2.5%.

d. Aging of the mixed powder: send the mixed powder into the conditioning chamber of high-pressure steam for 60 seconds for curing, so that the degree of curing is 28.00%, then sieve and pulverize into 1.5mm particles, and then cool to room temperature to obtain mixed cooked material;

e. Pelleting and packaging: dry the mixed clinker until the moisture content reaches 13%, then extrude and granulate, and then carry out vacuum cooling. When the cooling temperature of the mixed pellet feed is 10°C, carry out packaging treatment to obtain grass-fed The finished product of animal mixed feed; the mixed clinker is dried with high-temperature air, the temperature of the high-temperature air is 400° C., and the particle size and diameter during extrusion granulation are 10 mm.

In this embodiment, the straw accounts for more than 60% of the total amount of all raw materials. The nutritional components of the herbivore mixed feed of this embodiment are as follows: total protein content is 12.2%, total sugar content is 28.8%, fiber The element content is 16.2%, the fat content is 1.7%, the content of total calcium is 0.8%, and the content of total phosphorus is 0.7%.

Example 3:

According to one aspect of the present invention, a mixed feed for herbivores is provided. The mixed feed is composed of the following raw materials in parts by weight: 130 parts of straw, 15 parts of corn flour, 12 parts of soybean meal, 8 parts of distiller's grains powder, 8 parts of pine needles, yeast 6 parts of powder, 4 parts of sucrose molasses, 5 parts of premix and 0.5 part of rumen-passed methionine; the premix includes salt, calcium hydrogen phosphate, vitamin premix, baking soda, and the salt, calcium hydrogen phosphate, The ratio of the vitamin premix and baking soda is 6:25:5:2, the sugar content of the sucrose molasses is 49%-51%, and the high-grade sucrose molasses contains 12,000-15,000 beneficial microorganisms/g.

According to one aspect of the present invention, a method for preparing herbivore mixed feed is provided, comprising the following steps:

a. Weigh the raw materials of the mixed feed by parts by weight: straw, corn flour, soybean meal, pine needles, distiller's grains powder, yeast powder, sucrose molasses, premix and rumen-passed methionine;

b. Straw pretreatment: Cut the fresh straw into small pieces, and then send the cut straw into the rotatable drying cylinder for the first drying, and the moisture content will reach 42.00%. The straw is crushed into particles of 0.8 cm, and then the straw crushed into particles is sent to the rotating drying drum for the second time to dry the moisture content to 30%, and the pretreated straw material is obtained; in this embodiment, the The straw cut into small pieces is sent into the rotating drying drum for the first drying, and the high-temperature air is used for drying, and the temperature for the first drying is 420°C. The length of the drying cylinder is 4cm, and the rotating speed of the drying cylinder is 60rpm/min; Drying, the temperature when using high-temperature air for the second drying is 460°C, and the rotating speed of the drying drum is 80rpm/min;

c. Mixing treatment: fresh pine needles are first dried to a moisture content of 28% to 32%, and then crushed into powder to obtain pine needle powder. In the pretreated straw material, corn flour, soybean meal, distiller's grains powder, pine needle powder, Yeast powder, premix and rumen-passed methionine are sent into the mixer, and mixed and stirred for 6 minutes to obtain a uniform mixed powder; the speed of the mixed and stirred is 360rpm/min, and the coefficient of variation of the uniformity of mixing of the uniform mixed powder is 3.5%;

d. Aging of the mixed powder: send the mixed powder into the conditioning chamber of high-pressure steam for 45 seconds for curing, so that the degree of curing is 25.00%, then sieve and pulverize into 1.5mm particles, and then cool to room temperature to obtain mixed cooked material;

e. Pelleting and packaging: dry the mixed clinker until the moisture content reaches 12%, then extrude and granulate, and then carry out vacuum cooling. When the cooling temperature of the mixed pellet feed is 6°C, carry out packaging treatment to obtain grass-fed The finished animal mixed feed product; the mixed clinker is dried with high-temperature air, the temperature of the high-temperature air is 380° C., and the particle size of the extrusion granulation is 7 mm.

In this example, the straw accounts for 68% of the total amount of all raw materials. The nutrient components of the herbivore mixed feed of this example are as follows: a total protein content of 13.2%, a total sugar content of 29.8%, cellulose The content is 17%, the fat content is 1.5%, the content of total calcium is 0.9%, and the content of total phosphorus is 0.8%.

Embodiment 4: Safety performance experiment

(1), experimental sample: get the granular feed prepared in Example 3 as a drug sample, get the medicinal solution 0.2mL/10g of the crude drug amount 2g/mL concentration prepared by the sample, use mineral water as solvent preparation test mouse during the experiment.

(2) Experimental animals: Take 100 small healthy and normal mice, aged 6-8 weeks, with a body weight of 18-22 g. And divided into A, B, C, D three groups, 25 in each group.

(3) Experimental method

Before the experiment, fasting without food and water for 14 hours, groups A, B, and C were administered continuously for 14 weeks, once a day for the first 7 weeks, 1 mL/100g each time, twice a day for the next 6 weeks, 5 mL/100g each time, Then observe the various situations of the mice after stopping the drug for 4 weeks, wherein group C (control group) is fed normally, and the possible toxic reactions are recorded once a week. The experimental results showed that after administration, the coat color of the mice was bright, the behaviors were normal, there was no abnormal pathological reaction, and no mice died. After 4 weeks of drug withdrawal, the weight of the mice, blood picture, blood pressure, organ function and other indicators were not significantly affected. 20 mice were killed at random to observe the heart, liver, spleen, lung, kidney and other major organs, no hemorrhage, tissue degeneration, necrosis and other symptoms.

Embodiment 5: feeding effect test

In this example, 120 beef cattle and dairy cows with similar body conditions and good health were selected, among which 40 cows in the early lactation period, 40 in the middle lactation period, and 40 in the late lactation period in the dairy cow group, and 40 fattening cattle in the beef cattle group. More than 40 of 250kg, more than 40 of fattening cattle of 300kg, are randomly divided into A group and B two groups, A group adopts common feed (equivalent to conventional energy protein feed) to feed as a control group, and B group adopts herbivore mixed feed of the present invention Carry out feeding, and the feeding cycle is 150 days, and the data obtained at the end of the test are shown in Table 1 and Table 2.

Table 1: Cow feeding effect test

Table 2: Beef cattle feeding effect test

As can be seen from Table 1, when the test A group and the test B group were compared and fed, the milk yield fed by the feed of the present invention was higher than the milk yield fed by common feed, the milk quality was better, and the nutritional content was higher, as shown in Table 2 It can be seen that the growth rate of the test group B is faster than that of the test group A, the average body weight is significantly heavier, the disease-free rate is low, and the meat quality is better. It can be seen from Table 1 and Table 2 that the cost of the diet in test B is lower than that in test A group. The mixed feed of the present invention not only enables beef cattle to achieve significant weight gain, but also dairy cows to obtain better milk production benefits, and can greatly reduce the cost of feeding, and at the same time, improve the digestion and absorption rate of beef cattle and dairy cows It can reach more than 25%, improve the palatability, enhance the physique of cattle, reduce the incidence of disease and feeding costs, and reduce the waste of feed. After the straw is compressed and granulated, the volume of crop straw can be reduced by more than 85%, which greatly reduces the Feed storage and transportation costs.

The above is only a preferred embodiment of the present invention, it should be pointed out that for those of ordinary skill in the art, without departing from the principle of the present invention, some improvements and modifications can also be made, and these improvements and modifications should also be It is regarded as the protection scope of the present invention.

Claims (10)

1. Mixed feed for herbivores, characterized in that: the mixed feed consists of the following raw materials in parts by weight: 120-140 parts of straw, 10-18 parts of corn flour, 8-15 parts of soybean meal, 5-12 parts of distiller's grains powder, pine needles 6-10 parts, 4-8 parts of yeast powder, 2-6 parts of sucrose molasses, 2-6 parts of premix and 0.2-0.8 parts of rumen-passed methionine. 2. The herbivore mixed feed according to claim 1, characterized in that: said mixed feed consists of the following raw materials in parts by weight: 130 parts of straw, 15 parts of corn flour, 12 parts of soybean meal, 8 parts of distiller's grains powder, pine needles 8 parts, 6 parts of yeast powder, 4 parts of sucrose molasses, 5 parts of premix and 0.5 part of rumen-passed methionine. 3. The herbivore mixed feed according to claim 1 or 2, characterized in that: the straw is grass, corn straw, sugarcane leaf tail straw, peanut straw, cassava straw, alfalfa straw, sorghum straw, wheat straw, soybean straw One or more of straw and cotton straw, the sugar content of the sucrose molasses is: 46%-55%, high-grade sucrose molasses containing 0.2-20,000 beneficial microorganisms/g. 4. The herbivore mixed feed according to claim 1 or 2, characterized in that: said premix comprises salt, calcium hydrogen phosphate, vitamin premix, baking soda, said salt, calcium hydrogen phosphate, vitamin The specific gravity of the premix and baking soda is 4-7:22-27:3-6:1-3. 5. The herbivore mixed feed according to claim 4, characterized in that: the content of calcium in the calcium hydrogen phosphate is 25.00%-28.00%, and the content of phosphorus is 18.00%-22.00%. 6. The preparation method of herbivore mixed feed, it is characterized in that: comprise the following steps: a. Weigh the raw materials of the mixed feed by parts by weight: straw, corn flour, soybean meal, distiller's grain powder, pine needles, yeast powder, sucrose molasses, premix and rumen-passed methionine; b. Straw pretreatment: Cut the fresh straw into small pieces, then send the cut straw into the rotatable drying cylinder for the first drying, and the moisture content will reach 38.00% to 45.00%. The dried straw is crushed into granules of 0.5cm~1cm, and then the straw crushed into granules is sent to the rotating drying drum for the second drying to a moisture content of 27%~32%, and the pretreated straw material is obtained ; c. Mixing treatment: first dry the fresh pine needles to a moisture content of 25% to 35%, and then crush them into powder to obtain pine needle powder. In the pretreated straw material, corn flour, soybean meal, distiller's grains powder, pine needle powder, Feed the yeast powder, premix and rumen-passed methionine into the mixer, and mix and stir for 3-8 minutes to obtain a uniform mixed powder; d. Aging of the mixed powder: send the mixed powder into the conditioning chamber of high-pressure steam for 30-60 seconds for curing, so that the degree of curing is 22.00%-28.00%, and then sieve and pulverize into particles of 0.5mm-1.5mm, and then Cool to normal temperature to obtain mixed clinker; e. Granulation and packaging: Dry the mixed clinker until the moisture content reaches 10% to 15%, then extrude and granulate, and then carry out vacuum cooling. When the cooling temperature of the mixed pellet feed is -1°C to 10°C , implementing packaging treatment to obtain the finished herbivore mixed feed product. 7. The preparation method of herbivore mixed feed according to claim 6, characterized in that: the straw pretreatment in the step a, the straw cut into small sections is sent into the rotating drying cylinder for the first drying When drying, high-temperature air is used for drying, and the temperature when using high-temperature air for the first drying is 380°C-450°C, the length of the straw cut into small sections is 2cm-6cm, and the rotation speed of the drying drum is 50rpm/min～70rpm/min. 8. The preparation method of herbivore mixed feed according to claim 6, characterized in that: the straw pretreatment in the step a, the straw crushed into granules is sent to the rotating drying drum again for the second time High-temperature air is used for drying during drying, and the temperature for the second drying using high-temperature air is 400°C-500°C, and the rotating speed of the drying cylinder is 60rpm/min-90rpm/min. 9. The preparation method of herbivore mixed feed according to claim 6, characterized in that: the speed of mixing and stirring in the step c is 300-400 rpm/min, and the coefficient of variation of the mixing uniformity of the uniformly mixed powder is 2.5 %~4%. 10. The preparation method of herbivore mixed feed according to claim 6, characterized in that: in said step e, when drying the mixed clinker, high-temperature air is used for drying, and the temperature of said high-temperature air is 350° C. to 400° C. °C, the particle size and diameter during extrusion granulation are 3 mm to 10 mm.