JP7423999B2 - Feed composition, coated particles, method for producing feed composition - Google Patents

Description

The present invention relates to coated particles obtained by coating glucose particles as a core substance with powdered lipids, a feed composition for ruminants containing the coated particles, and a method for producing a feed composition for ruminants.

In ruminant animals such as cows, as in monogastric animals, glucose is the most important substance as an energy source for living organisms, and can be obtained by decomposing carbohydrates and cellulose in feed. However, in ruminants such as cattle, carbohydrates and cellulose are broken down by microorganisms in the rumen into volatile fatty acids and other organic acids, which have a molecular weight even smaller than glucose, and are used as nutrients by the microorganisms. , almost no glucose can be absorbed from the digestive tract beyond the abomasum. Therefore, in ruminant animals such as cows, glucose is synthesized in the liver by gluconeogenesis from substances other than sugar, and the blood glucose concentration is maintained. Glucose is used by the cranial nerves and skeletal muscles, and also serves as an energy source for the fetus during pregnancy and as a raw material for the synthesis of lactose contained in breast milk, so glucose utilization increases especially before and after childbirth. Therefore, gluconeogenesis alone cannot cover the required amount of glucose, leading to hypoglycemia, which may lead to serious diseases. Therefore, there is a need to feed glucose from the outside world and efficiently absorb it within the rumen without being broken down.
In order to avoid the effects of microbial fermentation within the rumen, compositions have been developed in which glucose is coated with oil and fat to provide rumen bypass performance.
For example, Patent Document 1 discloses a method for preventing darkening of the color of meat due to stress during transportation, etc. by feeding glucose coated with oil and fat 20 to 50 hours before slaughter. Further, Patent Document 1 discloses a method of coating glucose with oil and fat, in which glucose, hydrogenated soybean oil, and rice bran wax are put into a rolling granulator and kneaded at a temperature of 50°C. In this method, fats and oils are thought to melt at a temperature of 50° C. and form a uniform layer of fats and oils on the surface of glucose. Further, Patent Document 2 discloses a feed composition for cattle in which a mixture of a small amount of glucose, ascorbic acid, and inorganic ions mixed with fat and oil is fed for 2 to 4 weeks before slaughter to improve the quality of meat. ing. Although this document does not specifically disclose a method for producing fat-and-oil-coated glucose, it does disclose that a uniform layer of fat and oil is formed on the surface of glucose in FIG. 1A. Further, Patent Document 3 describes a rumen bypass preparation characterized in that nutrients are dispersed in a melt of hardened oil and fat, which is a coating material, and the melt containing the nutrients is injected into cooled air to solidify. A manufacturing method is disclosed. The coating methods disclosed in these documents all involve coating a core substance such as glucose with molten fat or oil.

Japanese Unexamined Patent Publication No. 7-95853 Japanese Patent Application Publication No. 2002-306085 International Publication No. 2018/030528

When glucose is coated using the conventional coating method, a uniform layer of fat and oil is formed on the glucose surface, thereby preventing the influence of microorganisms in the rumen. However, conventional coated particles have a problem in that it takes time to digest fats and oils after passing through the rumen, and the glucose in the coated particles passes through the digestive tract and is excreted without being eluted.

An object of the present invention is to provide a feed composition for ruminants that can be sufficiently dissolved in the digestive tract while suppressing the decomposition of glucose in the rumen.

As a result of intensive studies to solve the above problems, the present inventors found that by mixing glucose particles and powdered lipids at a temperature below the melting point of the powdered lipids and coating the surface of the glucose particles with the powdered lipids. The inventors have discovered that the above problems can be solved, and have completed the present invention.
That is, the present invention is as follows.

[1]
A feed composition for ruminants, comprising coated particles formed by coating the surfaces of glucose particles with a coating material,
The coating material is a powdered lipid with a melting point of 40°C or higher and 90°C or lower,
A feed composition, wherein the coated particles have an average particle diameter of 100 to 1000 μm.
[2]
The feed composition according to [1], wherein the content of the glucose particles is 40 to 97% by mass.
[3]
The feed composition according to [1] or [2], wherein the coated particles have a glucose dissolution rate of 10 to 30% by mass after 15 minutes in a dissolution test using water at 37°C.
[4]
A coated particle formed by coating the surface of a glucose particle with a coating material, the coated particle for use in a feed composition for ruminants,
The coating material is a powdered lipid with a melting point of 40°C or higher and 90°C or lower,
The coated particles have an average particle size of 100 to 1000 μm.
[5]
A method for producing a feed composition for ruminants, comprising coated particles formed by coating the surface of glucose particles with a coating material, the method comprising:
The average particle size of the glucose particles is 100 to 1000 μm,
The coating material is a powdered lipid with a melting point of 40°C or higher and 90°C or lower,
A method for producing a feed composition, wherein the step of obtaining the coated particles includes a step of mixing the glucose particles and the powdered lipid at a temperature equal to or lower than the melting point of the powdered lipid.

Since the feed composition for ruminants of the present invention has a low elution rate of glucose in the rumen, most of the glucose in the feed composition can pass through the rumen without being decomposed. Further, the feed composition for ruminants of the present invention releases glucose in the digestive tract after the abomasum, and therefore can sufficiently absorb glucose.
Therefore, according to the feed composition for ruminants of the present invention, the feed composition can efficiently increase blood glucose concentration and improve hypoglycemic conditions by providing it as feed to cows at risk of hypoglycemic conditions. can be provided.

FIG. 1 is a schematic explanatory diagram showing the structure of coated particles of the present invention. FIG. 2 is a schematic explanatory diagram showing the structure of conventional coated particles.

[Feed composition]
The feed composition for ruminants of the present invention is characterized by containing coated particles formed by coating glucose particles as a core substance with powdered lipid as a coating material. According to the feed composition for ruminants of the present invention, since it contains specific coated particles, it is possible to suppress glucose decomposition in the rumen and promote glucose absorption in the digestive tract.
Each component contained in the coated particles will be described below.

<Powdered lipid>
As the powdered lipid, a lipid having a melting point of 40°C or more and 90°C or less can be used. The lower limit of the melting point of the powdered lipid is preferably 50°C or higher, more preferably 60°C or higher. Further, the upper limit of the melting point of the powdered lipid is preferably 80°C or lower. The melting point is measured according to the standard oil and fat analysis test method "2.2.4.2 Melting point (increased melting point)".

The material for the powdered lipid is not particularly limited, and examples thereof include vegetable oils and fats such as corn oil, rapeseed oil, soybean oil, cottonseed oil, safflower oil, rice oil, sesame oil, olive oil, coconut oil, cacao butter, and palm oil; Animal fats and oils such as beef tallow, lard, fish oil, and whale oil; vegetable waxes such as rice bran wax, sugar cane wax, carnauba wax, and wheat wax; animal waxes such as beeswax and wool wax; higher alcohols; higher fatty acids, etc. . Moreover, powdered lipids can be obtained by hydrogenating these lipids so that their melting points are 40° C. or higher and 90° C. or lower, and then powdering them. These lipids can be used alone or in combination of two or more. When the melting point is less than 40° C., it is easy to melt, especially in summer, and the coated particles cannot be maintained in a powder state when stored.
As the above-mentioned powdered lipid, it is preferable to use a highly hydrogenated oil in which the double bonds in the constituent fatty acids are almost saturated by hydrogenation. The use of extremely hardened oil has the effect of improving the oxidation stability of the coating material. Examples of extremely hardened oils include extremely hardened rapeseed oil (melting point 67°C), extremely hardened palm oil (melting point 60°C), highly hydrogenated rapeseed oil (melting point 59°C), and extremely hardened soybean oil (melting point 67°C). , extremely hardened beef tallow oil (melting point: 59°C), extremely hardened pork fat oil (melting point: 60°C), and the like.

The average particle size of the powdered lipid is preferably smaller than the glucose particles serving as the core material. By making the average particle size of the powdered lipid that is the coating material smaller than the average particle size of the glucose particles that are the core material, attachment of the powdered lipid to the surface of the glucose particles can be promoted.

Further, the average particle size of the powdered lipid is not particularly limited, but is preferably 1 to 100 μm. The lower limit of the average particle size of the powdered lipid is more preferably 5 μm or more. Further, the upper limit of the average particle size of the powdered lipid is more preferably 50 μm or less. By adjusting the average particle size of the powdered lipid to the above range, the elution rate of glucose will be in a suitable range, and the effect of the present invention of suppressing the decomposition of glucose in the rumen and sufficient elution in the gastrointestinal tract can be achieved. You can perform even more.

The content of powdered lipid contained in the coated particles is not particularly limited, but is, for example, 3 to 60% by mass. The lower limit of the powdered lipid content is preferably 5% by mass or more, more preferably 10% by mass or more, still more preferably 20% by mass or more, particularly preferably 30% by mass or more. Moreover, the upper limit of the content of powdered lipid is preferably 50% by mass or less, more preferably 40% by mass or less. By adjusting the content of the powdered lipid within the above range, the elution rate of glucose is within a suitable range, and the effect of the present invention of suppressing the decomposition of glucose in the rumen and sufficient elution in the gastrointestinal tract can be further enhanced. able to demonstrate.

<Glucose particles>
As the glucose particles used as the core material of the coated particles, particle powder having an average particle size of 100 to 1000 μm can be used. The lower limit of the average particle size of glucose particles is preferably 150 μm or more. Moreover, the upper limit of the average particle diameter of glucose particles is preferably 500 μm or less. When the average particle size is less than 100 μm, the surface area of the coated particles coated with the powdered lipid serving as the coating material becomes large, so that glucose is easily eluted and decomposition of glucose in the rumen cannot be sufficiently suppressed. On the other hand, when the average particle size is larger than 1000 μm, the coated particles become large, which causes cracking of the particles and peeling of powdered lipids attached to the glucose surface, making it easier for glucose to elute.

Glucose particles are white powdery crystals at normal temperature and pressure (25° C., 1 atm), and are mainly produced from starch by hydrolysis. The glucose particles used in the present invention can be adjusted to the above average particle size by granulating a portion of the produced crystals.

The content of glucose particles contained in the coated particles is not particularly limited, but is, for example, 40 to 97% by mass. The lower limit of the content of glucose particles is preferably 50% by mass or more, more preferably 60% by mass or more. Further, the upper limit of the content of glucose particles is preferably 95% by mass or less, more preferably 90% by mass or less, still more preferably 80% by mass or less, particularly preferably 70% by mass or less. . By adjusting the lower limit of the content of glucose particles within the above range, coated particles containing a large amount of glucose can be obtained. Further, by adjusting the upper limit of the content of glucose particles within the above range, a suitable powdery lipid coating can be formed.

<Coated particles>
The coated particles of the present invention are formed by coating glucose particles as a core substance with powdered lipid as a coating material. FIG. 1 shows a schematic illustration of the structure of coated particles of the present invention. As shown in FIG. 1, the coated particles 1 have powdered lipids attached to the surface of glucose particles, which are core substances, to form a film. Further, FIG. 2 shows a schematic explanatory diagram of the structure of a conventional coated particle. FIG. 2(A) shows a coated particle in which each core substance particle is coated with a coating material, and FIG. 2(B) shows a coated particle in which a plurality of core substances are coated with a coating material dispersed therein. show.

In conventional coated particles, since the core substance is completely covered with the coating material, the particles pass through the digestive tract and are excreted without being eluted from the coating material. Note that conventional coated particles include coated particles that are incompletely coated because it is difficult to uniformly coat the surface of the core substance because the coated particles are coated with a molten coating material. Therefore, although some incompletely coated particles elute, the glucose in all the coated particles cannot be utilized. In addition, as shown in FIG. 2(B), when multiple core substances exist in a dispersed state in the coating material, the core substances located on the surface of the coated particle are eluted, but the core substances located inside the coating material are dissolved. The substance does not elute.
On the other hand, in the coated particles of the present invention, the powdered lipid is uniformly attached to the surface of each particle of the core material, so that the coating performance is constant for all particles. Since the core substance of the coated particles of the present invention is gradually eluted from small gaps in the powdered lipid, it can exhibit the effect of being sufficiently eluted within the digestive tract while passing through the lumen.

The coated particles of the present invention preferably have a glucose elution rate of 10 to 30% by mass after 15 minutes in an elution test using water at 37°C. Further, it is preferable that the elution rate of glucose after 30 minutes is 15 to 50% by mass. By setting the elution rate within this range, the effect of the present invention of suppressing the decomposition of glucose in the rumen and sufficiently dissolving it in the digestive tract can be further exhibited. The elution rate can be set by adjusting the average particle diameter of glucose particles and powdered lipid, the mass ratio of glucose particles and powdered lipid, and the like. The dissolution rate is measured using purified water at 37°C based on the second dissolution test method (paddle method) of the Japanese Pharmacopoeia.

[Method for producing feed composition]
The method for producing a feed composition of the present invention includes a step of obtaining coated particles, and the step of obtaining coated particles includes the following steps.
[I] Step of preparing glucose particles having an average particle size of 100 to 1000 μm.
[II] Step of preparing a powdered lipid having a melting point of 40°C or higher and 90°C or lower.
[III] Step of mixing glucose particles and powdered lipid.

Step [I] is a step of preparing glucose particles having an average particle size of 100 to 1000 μm. For example, the average particle size of the glucose particles can be adjusted to 100 to 1000 μm by pulverizing the glucose particles using a known pulverizing method and granulating the glucose particles using a known granulating method. Alternatively, commercially available glucose particles having an average particle size of 100 to 1000 μm may be procured.

Step [II] is a step of preparing a powdered lipid having a melting point of 40° C. or more and 90° C. or less. For example, by hydrogenating lipids to adjust the melting point of the lipids to 40°C or higher and 90°C or lower, and then powdering the lipids with adjusted melting points, powdered lipids with melting points of 40°C or higher and 90°C or lower can be obtained. Alternatively, a commercially available powdered lipid with a melting point of 40° C. or more and 90° C. or less may be procured, or a lipid with a melting point of 40° C. or more and 90° C. or less may be procured and only powdered. The lipid can be powdered by a known spray cooling method or a known pulverization method.

Step [III] is a step of mixing glucose particles and powdered lipid. In this step, the glucose particles and the powdered lipid are preferably mixed at a temperature below the melting point of the powdered lipid. By controlling the temperature during mixing to be equal to or lower than the melting point of the powdered lipid, the powdered lipid can adhere to the surface of the glucose particles in a powdered state and form a film having appropriate pores. The temperature during mixing is, for example, 10°C or lower, which is the melting point of the powdered lipid, and preferably 20°C or lower. Note that the temperature during mixing is the temperature inside the mixed powder of glucose particles and powdered lipid.

Any mixing method may be used as long as the powdered lipid is sufficiently mixed with the glucose particles and the surfaces of the glucose particles are coated with the powdered lipid. It is manufactured using a mixing device such as a ball mill, an electric mortar, or a high-efficiency powder mixer.

In the coated particles contained in the feed composition of the present invention, the entire circumferential surface of the glucose particles serving as the core substance is covered with a coating layer formed by aggregation of powdered lipids in a layered manner, unlike conventional molten fat and oil coatings. It is structurally different from the coating layer that covers the . In addition, when using molten fats and oils, a uniform layer of fats and oils is formed on the glucose surface, which prevents the influence of microorganisms within the rumen, but it takes time to digest the fats and oils after passing through the rumen. The glucose in the particles passes through the digestive tract without being eluted and is excreted. On the other hand, in the present invention, since the powdered lipid is coated on the surface of the glucose particles in a powdered state, the particles have few pores, and an appropriate elution rate can be obtained. Therefore, according to the feed composition of the present invention, it is considered that the effect of the present invention of suppressing the decomposition of glucose in the rumen and sufficiently dissolving it in the gastrointestinal tract can be further exhibited.

The feed composition of the present invention produced as described above can be used as livestock feed either as coated particles alone or in combination with other feed ingredients.

EXAMPLES The present invention will be described in more detail with reference to Examples below, but the present invention is not limited thereto.

(Example 1)
A feed composition having the composition shown in Table 1 was prepared by the following method. 80 parts by mass of glucose particles with an average particle size of 234 μm (Shiomiko Sugar Co., Ltd., trade name: Glu Final) and 20 parts by mass of powdered extremely hardened rapeseed oil with a melting point of 67°C (average particle size: 38 μm) were flowed at high speed. The mixture was charged into a mixer (manufactured by Kawata Co., Ltd., trade name: SMV-5) and treated for 30 minutes at a stirring blade rotation speed of 1000 rpm to obtain coated particles with an average particle size of 235 μm. Note that the temperature of the powder during mixing was 10 to 30°C. The obtained coated particles were used as the feed composition of Example 1.

(Example 2)
A feed composition having the composition shown in Table 1 was prepared by the following method. 60 parts by mass of glucose particles with an average particle size of 232 μm (Shinsuiko Sugar Co., Ltd., trade name: Glu Final) and 40 parts by mass of powdered extremely hardened rapeseed oil with a melting point of 67°C (average particle size: 30 μm) were used. Mixing was carried out under the same conditions as in Example 1 to obtain coated particles with an average particle size of 239 μm. The coated particles were used as the feed composition of Example 2.

(Example 3)
A feed composition having the composition shown in Table 1 was prepared by the following method. A tumbling flow granulation coating device FD-MP-01 (manufactured by Powrex Co., Ltd.) was charged with 700 g of hydrated crystalline glucose (manufactured by Sanei Saccharification Co., Ltd., average particle size 95 μm), and a 5% by mass solution of hydrated crystalline glucose was added. It was dried while spraying 500 g. The operating conditions were: supply air temperature: 80°C, supply air flow rate: 1 m ³ /min, rotor rotation speed: 300 rpm, and spray liquid rate: 15 g/min, and glucose granules with an average particle size of 172 μm were obtained. 60 parts by mass of the obtained glucose granules and 40 parts by mass of powdered extremely hardened palm oil with a melting point of 60°C (average particle size: 25 μm) were mixed under the same conditions as in Example 1, and the average particle size was 174 μm. coated particles were prepared. The coated particles were used as the feed composition of Example 3.

(Comparative example 1)
A feed composition was prepared in which glucose particles were not coated with powdered lipid. Glucose particles (manufactured by Shiomiko Sugar Co., Ltd., trade name: Glu Final) with an average particle size of 232 μm were evaluated as they were.

(Comparative example 2)
A feed composition was prepared by processing under the same conditions as in Example 1 except that the average particle size of the glucose particles was set to 35 μm, which is outside the range of the present invention.

(Comparative example 3)
A feed composition was prepared by setting the particle size of the glucose particles to 1517 μm, which is outside the range of the present invention, and otherwise treating under the same conditions as in Example 1.

(Comparative example 4)
A feed composition was prepared by processing under the same conditions as in Example 1 except that the melting point of the powdered lipid serving as the coating material was 35° C., which is outside the range of the present invention.

[Measurement method and evaluation method]
The samples of Examples 1 to 3 and the samples of Comparative Examples 1 to 4 were measured by the following method.
(Average particle size)
The average particle diameters of the glucose particles, powdered lipids, and coated particles were evaluated using a laser dry particle size distribution analyzer (trade name: SALD-2100, manufactured by Shimadzu Corporation). Data processed with a built-in program (Wing-1) was used.

(Elution resistance test)
Based on the elution test method 2 (paddle method) of the Japanese Pharmacopoeia, approximately 100 mg of the feed composition was accurately weighed, placed in a container filled with 900 mL of purified water, and the glucose concentration in the solution was measured over time at 37°C. It was measured. The glucose concentration in the solution was measured using a glucose analysis kit (manufactured by Fuji Film Wako Pure Chemical Industries, Ltd., trade name: Glucose CII Test Wako). As an index of coating efficiency, the glucose concentration in the solution 15 minutes and 30 minutes after the start of the test was determined as the dissolution rate.
(Evaluation of elution resistance)
Based on the results of the above test, the elution resistance was evaluated as follows.
○: The elution rate after 15 minutes is 30% or less, and the elution rate after 30 minutes is 40% or less. △: The elution rate after 15 minutes is more than 30% and 50% or less, and the elution rate after 30 minutes is 40% or less. More than 40% but not more than 60% ×; Dissolution rate after 15 minutes is over 50% and dissolution rate after 30 minutes is over 60%

The elution resistance of the feed compositions obtained in Examples 1 to 3 showed good results. Specifically, the dissolution rate after 15 minutes was 10 to 30% by mass, and the dissolution rate after 30 minutes was 40% by mass or less. This shows that in the present invention, a feed composition with appropriate glucose elution resistance could be prepared.

On the other hand, in Comparative Example 1 in which the glucose particles were not coated with powdered hydrogenated oil, 100% by mass of glucose was eluted after 15 minutes, indicating that there was no elution resistance at all unless the glucose particles were coated with powdered lipid. did not show.
In Comparative Example 2, in which the particle size of the glucose particles was outside the range of the present invention (less than 100 μm), a high elution rate was shown after 15 minutes and 30 minutes, and the effect of lipid coating was not sufficient. .
In Comparative Example 3, in which the particle size of glucose particles was outside the range of the present invention (1000 μm or more), a high elution rate was shown after 15 minutes and 30 minutes, and the effect of lipid coating was not sufficient. .
In the case of Comparative Example 4 in which the melting point of the hydrogenated oil to be coated was outside the range of the present invention (35°C), a high dissolution rate was shown after 15 minutes and 30 minutes, and the effect of lipid coating was not sufficient. Ta.

In order to verify the behavior of the feed compositions produced in Examples 1 and 2 and the feed composition of Comparative Example 1 in actual cow rumen fluid, the following rumen bypass test was conducted. The results are shown in Table 2.

(in vivo lumen bypass test)
The rumen fluid collected orally from lactating cows before feeding was filtered with quadruple gauze and a funnel within 20 minutes, and buffered at a ratio of 1:1 (mass ratio) according to the method of Russell and Martin. mixed with. Furthermore, 600 mg of L-cysteine/hydrochloric acid was added per liter of buffer solution, and this was used as a culture solution. The buffer solution was K ₂ HPO ₄ (438 mg), KH ₂ PO ₄ (360 mg), (NH4) ₂ SO ₄ (720 mg), NaCl (720 mg), CaCl _{2.2H 2} O ( 96 mg), MgSO ₄ .7H ₂ O (150 mg), and Na ₂ CO ₃ (6000 mg) were dissolved and the pH was adjusted to 6.9 before use. As substrates, 100 mg of crushed roughage (Sudan grass) and concentrated feed (compound feed for dairy cows) were mixed with 30 ml of culture solution and filled into 50 ml vials. Each feed composition was added to this culture solution in an amount of 80 mg as glucose. Thereafter, the culture solution was aerated with CO ₂ gas to make the inside of the vial under anaerobic conditions, and the vial was tightly stoppered, and cultured with shaking in an anaerobic water bath at 39° C. for 0 hours, 2 hours, and 6 hours. The culture solution after culturing was disrupted for 1 minute using an ultrasonic disruptor, and then treated at 70° C. for 15 minutes. Thereafter, the glucose concentration of the supernatant obtained by centrifugation at 15,000 rpm for 10 minutes was measured using a glucose analysis kit (product name: Glucose CII Test Wako, manufactured by Fuji Film Wako Pure Chemical Industries, Ltd.), and the rumen culture The residual rate of glucose in the sample was measured.

(Evaluation of lumen bypass property)
Based on the results of the above test, the lumen bypass property was evaluated as follows.
○: The survival rate after 2 hours is 60% or more, and the survival rate after 6 hours is 30% or more. △: The survival rate after 2 hours is 30% or more and less than 60%, and the survival rate after 6 hours is 30% or more and less than 60%. 10% or more and less than 30% ×; Remaining rate after 2 hours is less than 30% and remaining rate after 6 hours is less than 10%

The feed compositions in Examples 1 and 2 had good results in that glucose decomposition was suppressed. Specifically, a certain amount or more of glucose remained in the solution 2 hours and 6 hours after starting the culture. These results showed that a feed composition with rumen bypass properties could be prepared.
On the other hand, the feed composition of Comparative Example 1 did not exhibit rumen bypass properties. Specifically, 2 hours after starting the culture, glucose was below the detection limit and glucose had been decomposed. Note that the detection limit of glucose in this test is 3.8 mg/100 ml.

From the above results, it was found that the feed composition of the present invention can moderately suppress the decomposition of glucose in the rumen of ruminants.

1, 10, 11 coated particles, 2 glucose particles, 3 powdered lipid, 20 core substance, 30 oil/fat coating

Claims (3)

A method for producing coated particles for use in a feed composition for ruminants, the coated particles being formed by coating the surface of glucose particles with a coating material,
The average particle size of the glucose particles is 100 to 1000 μm,
The coating material is a powdered lipid with a melting point of 40°C or higher and 90°C or lower,
The average particle diameter of the coated particles is 100 to 1000 μm,
The coated particles have a glucose elution rate of 10 to 30% by mass after 15 minutes in an elution test using water at 37°C,
The step of obtaining the coated particles includes:
[I] preparing the glucose particles having an average particle size of 100 to 1000 μm;
[II] Preparing the powdered lipid having a melting point of 40°C or more and 90°C or less,
[III] A method for producing coated particles, comprising a step of mixing the glucose particles and the powdered lipid at a temperature below the melting point of the powdered lipid . The method for producing coated particles according to claim 1, wherein the content of the glucose particles is 40 to 97% by mass. A method for producing a feed composition for ruminants, comprising coated particles obtained by the method for producing coated particles according to claim 1 or 2 .