CN114617196A - Supplementary feed concentrate capable of increasing milk yield of yaks and preparation method thereof - Google Patents

Supplementary feed concentrate capable of increasing milk yield of yaks and preparation method thereof Download PDF

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CN114617196A
CN114617196A CN202210353542.1A CN202210353542A CN114617196A CN 114617196 A CN114617196 A CN 114617196A CN 202210353542 A CN202210353542 A CN 202210353542A CN 114617196 A CN114617196 A CN 114617196A
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姜南
巴桑旺堆
张强
洛桑顿珠
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Institute of Animal Husbandry and Veterinary Medicine of Tibet Academy of Agriculture and Animal Husbandry Sciences
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    • A23FOODS OR FOODSTUFFS; TREATMENT THEREOF, NOT COVERED BY OTHER CLASSES
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    • A23FOODS OR FOODSTUFFS; TREATMENT THEREOF, NOT COVERED BY OTHER CLASSES
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    • A23K10/10Animal feeding-stuffs obtained by microbiological or biochemical processes
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    • AHUMAN NECESSITIES
    • A23FOODS OR FOODSTUFFS; TREATMENT THEREOF, NOT COVERED BY OTHER CLASSES
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    • A23FOODS OR FOODSTUFFS; TREATMENT THEREOF, NOT COVERED BY OTHER CLASSES
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    • A23K20/10Organic substances
    • A23K20/158Fatty acids; Fats; Products containing oils or fats
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    • A23K20/00Accessory food factors for animal feeding-stuffs
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    • A23K20/174Vitamins
    • AHUMAN NECESSITIES
    • A23FOODS OR FOODSTUFFS; TREATMENT THEREOF, NOT COVERED BY OTHER CLASSES
    • A23KFODDER
    • A23K20/00Accessory food factors for animal feeding-stuffs
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    • AHUMAN NECESSITIES
    • A23FOODS OR FOODSTUFFS; TREATMENT THEREOF, NOT COVERED BY OTHER CLASSES
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    • A23K20/00Accessory food factors for animal feeding-stuffs
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    • A23K20/22Compounds of alkali metals
    • AHUMAN NECESSITIES
    • A23FOODS OR FOODSTUFFS; TREATMENT THEREOF, NOT COVERED BY OTHER CLASSES
    • A23KFODDER
    • A23K20/00Accessory food factors for animal feeding-stuffs
    • A23K20/20Inorganic substances, e.g. oligoelements
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Abstract

The invention discloses a supplementary feed concentrate capable of improving the milk yield of yaks and a preparation method thereof, wherein the formula comprises the following components: compound Chinese medicine extract, compound additive and carrier; the preparation method comprises the steps of firstly, preparing a compound traditional Chinese medicine extract; step two, preparing a composite additive; step three, preparing a finished product; step four, bagging and storing; the formula of the invention adopts the compound traditional Chinese medicine extract with the efficacy of tonifying qi and promoting lactation, so that the milk yield of the consumed cows can be effectively improved, and the safety of the milk is ensured; according to the invention, the flavoring agent and the flavoring agent are added into the compound additive, so that the palatability of the concentrate is improved, the feed intake of the yak is increased, the immunity of the yak is enhanced by adding the compound vitamin and the beneficial bacteria, and the quality of milk is ensured; according to the invention, the finished supplementary feeding concentrate is made into water-soluble powder, so that the supplementary feeding concentrate can be better and uniformly mixed with the basic feed, and excessive or too little supplementary feeding concentrate is prevented from being consumed by cattle.

Description

Supplementary feed concentrate capable of increasing milk yield of yaks and preparation method thereof
Technical Field
The invention relates to the technical field of yak feed, in particular to supplementary feed concentrate capable of improving milk yield of yaks and a preparation method thereof.
Background
Yaks are mainly distributed in 5 provinces in the west, such as Qinghai, Tibet, Gansu, Sichuan, Xinjiang and Yunnan, the traditional breeding is mainly in a grazing mode, production and living necessities such as meat, milk, hair and excrement are provided for the Tibetan population, and the yaks cannot be replaced; the natural conditions in cold seasons are severe, the body condition of grazed yaks is poor, the fertility is reduced, and the natural pasture cannot meet the nutritional requirements of the grazed yaks; the supplementary feeding concentrate can effectively supplement nutrient substances required by the growth of yaks, but the existing supplementary feeding concentrate is rough in production method and raw materials are not finished, so that the absorption effect is poor, and the milk yield of the yaks cannot be effectively improved by the existing supplementary feeding concentrate; most of the conventional supplementary feeding concentrate products are large-particle feeds, and most of farmers adopt manual stirring during feed preparation, so that the supplementary feeding concentrate and the basic feed are not uniformly mixed, and the supplementary feeding effect is influenced by too much or too little supplementary feeding concentrate consumed by cattle; the existing supplementary feeding concentrate only focuses on nutrition and ignores palatability, so that the feed intake of cattle can not be increased, and even the feed intake of cattle can be reduced.
Disclosure of Invention
The invention aims to provide a supplementary feeding concentrate capable of improving the milk yield of yaks and a preparation method thereof, and aims to solve the problems in the background technology.
In order to achieve the purpose, the invention provides the following technical scheme: a supplementary feed concentrate capable of improving milk yield of yaks comprises the following components: the composite traditional Chinese medicine composition comprises a composite traditional Chinese medicine extract, a composite additive and a carrier, wherein the mass percentage of each component is as follows: 30-40% of compound traditional Chinese medicine extract, 20-30% of compound additive and 30-50% of carrier.
Preferably, the mass percentage of each component is as follows: 35% of compound traditional Chinese medicine extract, 25% of compound additive and 40% of carrier.
A preparation method of supplementary feed concentrate capable of improving milk yield of yaks comprises the steps of preparing a compound traditional Chinese medicine extract; step two, preparing a composite additive; step three, preparing a finished product; step four, bagging and storing;
wherein in the first step, the preparation of the composite traditional Chinese medicine extract comprises the following steps:
1) weighing the raw materials according to the formula proportion of the compound traditional Chinese medicine, placing the raw materials in a boiling pot, adding a proper amount of purified water, soaking for 60min at 60 ℃, then heating to 80-100 ℃, and decocting for 1h under the pressure of 0.12MPa to obtain a liquid medicine;
2) filtering the medicinal liquid with 0.65 μm filter, and heating and concentrating the filtrate under 0.02MPa to obtain concentrated solution;
3) cooling the concentrated solution to below 60 ℃, conveying the concentrated solution to an alcohol precipitation tank for alcohol precipitation, and reacting for 1 hour to obtain an alcohol precipitation solution;
4) filtering the alcohol precipitation solution through a 0.45-micron filter, and heating the filtered alcohol precipitation solution under the condition of 0.04MPa to collect alcohol to obtain an extracting solution;
5) spray drying the extractive solution to obtain compound Chinese medicinal extract;
in the second step, the raw materials are weighed according to the formula proportion of the composite additive, placed in a stirrer and uniformly mixed and stirred to obtain the composite additive;
in the third step, the compound traditional Chinese medicine extract prepared in the first step and the compound additive prepared in the second step are taken, the compound traditional Chinese medicine extract, the compound additive and the carrier are weighed according to the formula proportion of the supplementary feeding concentrate, the mixture is placed in a stirrer and uniformly mixed and stirred to obtain the supplementary feeding concentrate;
in the fourth step, the supplementary feeding concentrate prepared in the third step is weighed according to the specification parameters of the product, vacuum-packaged by adopting an aluminum foil bag, and stored in a dry, low-temperature, light-proof and ventilated environment.
Preferably, in the step 1), the mass percentages of the components of the compound traditional Chinese medicine are as follows: 30% of motherwort, 25% of cowherb seed, 15% of ricepaper pith, 10% of astragalus membranaceus, 5% of angelica, 5% of codonopsis pilosula, 5% of bighead atractylodes rhizome and 5% of uniflower swisscentaury root.
Preferably, in the step one 3), the mass content of the ethanol in the ethanol precipitation tank is 95%.
Preferably, in the step one 5), the temperature parameters of the spray drying are as follows: the temperature of the air inlet is 160 ℃, and the temperature of the air outlet is 80 ℃.
Preferably, in the second step, the mass percentage of each component of the composite additive is as follows: 25% of compound vitamin, 2% of flavoring agent, 6% of beneficial bacteria, 12% of flavoring agent, 2% of mildew preventive, 40% of energy additive and 13% of amino acid.
Preferably, the compound vitamin is formed by compounding vitamin A, vitamin D, vitamin E and beta-carotene; the flavoring agent is composed of two or more of sodium glutamate, sodium chloride, citric acid, lactose and maltose; the mildew preventive is sodium diacetate; the energy additive is fatty acid calcium.
Preferably, in the third step, the carrier is beneficial powder.
Compared with the prior art, the invention has the beneficial effects that: the formula of the invention adopts the compound traditional Chinese medicine extract with the efficacy of tonifying qi and promoting lactation, so that the milk yield of the consumed cows can be effectively improved, and the safety of the milk is ensured; according to the invention, the flavoring agent and the flavoring agent are added into the compound additive, so that the palatability of the concentrate is improved, the feed intake of the yak is increased, the immunity of the yak is enhanced by adding the compound vitamin and the beneficial bacteria, and the quality of milk is ensured; according to the invention, the finished supplementary feeding concentrate is made into water-soluble powder, so that the supplementary feeding concentrate can be better and uniformly mixed with the basic feed, and excessive or too little supplementary feeding concentrate is prevented from being consumed by cattle.
Drawings
FIG. 1 is a flow chart of the method of the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1, a technical solution provided by the present invention:
example 1:
a supplementary feed concentrate capable of improving milk yield of yaks comprises the following components: the composite traditional Chinese medicine composition comprises a composite traditional Chinese medicine extract, a composite additive and a carrier, wherein the mass percentage of each component is as follows: 35% of compound traditional Chinese medicine extract, 25% of compound additive and 40% of carrier.
A preparation method of supplementary feed concentrate capable of improving milk yield of yaks comprises the steps of preparing a compound traditional Chinese medicine extract; step two, preparing a composite additive; step three, preparing a finished product; step four, bagging and storing;
wherein in the first step, the preparation of the composite traditional Chinese medicine extract comprises the following steps:
1) weighing the raw materials according to the formula proportion of the compound traditional Chinese medicine, placing the raw materials in a boiling pot, adding a proper amount of purified water, soaking for 60min at 60 ℃, then heating to 80-100 ℃, and decocting for 1h under the pressure of 0.12MPa to obtain a liquid medicine; the composite traditional Chinese medicine comprises the following components in percentage by mass: 30% of motherwort, 25% of cowherb seed, 15% of ricepaper pith, 10% of astragalus, 5% of angelica, 5% of codonopsis pilosula, 5% of bighead atractylodes rhizome and 5% of uniflower swisscentaury root;
2) filtering the medicinal liquid with 0.65 μm filter, and concentrating the filtrate under 0.02MPa to obtain concentrated solution;
3) cooling the concentrated solution to below 60 ℃, conveying the concentrated solution to an alcohol precipitation tank for alcohol precipitation, and reacting for 1 hour to obtain an alcohol precipitation solution; the mass content of ethanol in the ethanol precipitation tank is 95 percent;
4) filtering the alcohol precipitation solution through a 0.45-micron filter, and heating the filtered alcohol precipitation solution under the condition of 0.04MPa to collect alcohol to obtain an extracting solution;
5) spray drying the extractive solution to obtain compound Chinese medicinal extract; the temperature parameters of the spray drying were: the temperature of the air inlet is 160 ℃, and the temperature of the air outlet is 80 ℃;
in the second step, the raw materials are weighed according to the formula proportion of the composite additive, placed in a stirrer and uniformly mixed and stirred to obtain the composite additive; the composite additive comprises the following components in percentage by mass: 25% of compound vitamin, 2% of flavoring agent, 6% of beneficial bacteria, 12% of flavoring agent, 2% of mildew preventive, 40% of energy additive and 13% of amino acid; the compound vitamin is formed by compounding vitamin A, vitamin D, vitamin E and beta-carotene; the flavoring agent is composed of two or more of sodium glutamate, sodium chloride, citric acid, lactose and maltose; the mildew preventive is sodium diacetate; the energy additive is fatty acid calcium;
in the third step, the compound traditional Chinese medicine extract prepared in the first step and the compound additive prepared in the second step are taken, the compound traditional Chinese medicine extract, the compound additive and the carrier are weighed according to the formula proportion of the supplementary feeding concentrate, the carrier is the supplement powder, then the supplementary feeding concentrate is placed in a stirrer, and the supplementary feeding concentrate is obtained after uniform mixing and stirring;
in the fourth step, the supplementary feeding concentrate prepared in the third step is weighed according to the specification parameters of the product, is packaged in a vacuum mode by adopting an aluminum foil bag, and is stored in a dry, low-temperature, light-proof and ventilated environment.
Example 2:
a supplementary feed concentrate capable of improving milk yield of yaks comprises the following components: the composite traditional Chinese medicine composition comprises a composite traditional Chinese medicine extract, a composite additive and a carrier, wherein the mass percentage of each component is as follows: 30% of compound traditional Chinese medicine extract, 30% of compound additive and 40% of carrier.
A preparation method of supplementary feed concentrate capable of improving milk yield of yaks comprises the steps of preparing a compound traditional Chinese medicine extract; step two, preparing a composite additive; step three, preparing a finished product; step four, bagging and storing;
wherein in the first step, the preparation of the composite traditional Chinese medicine extract comprises the following steps:
1) weighing the raw materials according to the formula proportion of the compound traditional Chinese medicine, placing the raw materials in a boiling pot, adding a proper amount of purified water, soaking for 60min at 60 ℃, then heating to 80-100 ℃, and decocting for 1h under the pressure of 0.12MPa to obtain a liquid medicine; the composite traditional Chinese medicine comprises the following components in percentage by mass: 30% of motherwort, 25% of cowherb seed, 15% of ricepaper pith, 10% of astragalus, 5% of angelica, 5% of codonopsis pilosula, 5% of bighead atractylodes rhizome and 5% of uniflower swisscentaury root;
2) filtering the medicinal liquid with 0.65 μm filter, and concentrating the filtrate under 0.02MPa to obtain concentrated solution;
3) cooling the concentrated solution to below 60 ℃, conveying the concentrated solution to an alcohol precipitation tank for alcohol precipitation, and reacting for 1 hour to obtain an alcohol precipitation solution; the mass content of ethanol in the ethanol precipitation tank is 95 percent;
4) filtering the alcohol precipitation solution through a 0.45-micron filter, and heating the filtered alcohol precipitation solution under the condition of 0.04MPa to collect alcohol to obtain an extracting solution;
5) spray drying the extractive solution to obtain compound Chinese medicinal extract; the temperature parameters of the spray drying were: the temperature of the air inlet is 160 ℃, and the temperature of the air outlet is 80 ℃;
in the second step, the raw materials are weighed according to the formula proportion of the composite additive, placed in a stirrer and uniformly mixed and stirred to obtain the composite additive; the composite additive comprises the following components in percentage by mass: 25% of compound vitamin, 2% of flavoring agent, 6% of beneficial bacteria, 12% of flavoring agent, 2% of mildew preventive, 40% of energy additive and 13% of amino acid; the compound vitamin is formed by compounding vitamin A, vitamin D, vitamin E and beta-carotene; the flavoring agent is composed of two or more of sodium glutamate, sodium chloride, citric acid, lactose and maltose; the mildew preventive is sodium diacetate; the energy additive is fatty acid calcium;
in the third step, the compound traditional Chinese medicine extract prepared in the first step and the compound additive prepared in the second step are taken, the compound traditional Chinese medicine extract, the compound additive and the carrier are weighed according to the formula proportion of the supplementary feeding concentrate, the carrier is the supplement powder, then the supplementary feeding concentrate is placed in a stirrer, and the supplementary feeding concentrate is obtained after uniform mixing and stirring;
in the fourth step, the supplementary feeding concentrate prepared in the third step is weighed according to the specification parameters of the product, is packaged in a vacuum mode by adopting an aluminum foil bag, and is stored in a dry, low-temperature, light-proof and ventilated environment.
Example 3:
a supplementary feed concentrate capable of improving milk yield of yaks comprises the following components: the composite traditional Chinese medicine composition comprises a composite traditional Chinese medicine extract, a composite additive and a carrier, wherein the mass percentage of each component is as follows: 40% of compound traditional Chinese medicine extract, 20% of compound additive and 40% of carrier.
A preparation method of supplementary feed concentrate capable of improving milk yield of yaks comprises the steps of preparing a compound traditional Chinese medicine extract; step two, preparing a composite additive; step three, preparing a finished product; step four, bagging and storing;
wherein in the first step, the preparation of the composite traditional Chinese medicine extract comprises the following steps:
1) weighing the raw materials according to the formula proportion of the compound traditional Chinese medicine, placing the raw materials in a boiling pot, adding a proper amount of purified water, soaking for 60min at 60 ℃, then heating to 80-100 ℃, and decocting for 1h under the pressure of 0.12MPa to obtain a liquid medicine; the composite traditional Chinese medicine comprises the following components in percentage by mass: 30% of motherwort, 25% of cowherb seed, 15% of ricepaper pith, 10% of astragalus, 5% of angelica, 5% of codonopsis pilosula, 5% of bighead atractylodes rhizome and 5% of uniflower swisscentaury root;
2) filtering the medicinal liquid with 0.65 μm filter, and concentrating the filtrate under 0.02MPa to obtain concentrated solution;
3) cooling the concentrated solution to below 60 ℃, conveying the concentrated solution to an alcohol precipitation tank for alcohol precipitation, and reacting for 1h to obtain an alcohol precipitation solution; the mass content of ethanol in the ethanol precipitation tank is 95 percent;
4) filtering the alcohol precipitation solution through a 0.45-micron filter, and heating the filtered alcohol precipitation solution under the condition of 0.04MPa to collect alcohol to obtain an extracting solution;
5) spray drying the extractive solution to obtain compound Chinese medicinal extract; the temperature parameters of the spray drying were: the temperature of the air inlet is 160 ℃, and the temperature of the air outlet is 80 ℃;
in the second step, the raw materials are weighed according to the formula proportion of the composite additive, placed in a stirrer and uniformly mixed and stirred to obtain the composite additive; the composite additive comprises the following components in percentage by mass: 25% of compound vitamin, 2% of flavoring agent, 6% of beneficial bacteria, 12% of flavoring agent, 2% of mildew preventive, 40% of energy additive and 13% of amino acid; the compound vitamin is formed by compounding vitamin A, vitamin D, vitamin E and beta-carotene; the flavoring agent is composed of two or more of sodium glutamate, sodium chloride, citric acid, lactose and maltose; the mildew preventive is sodium diacetate; the energy additive is fatty acid calcium;
in the third step, the composite traditional Chinese medicine extract prepared in the first step and the composite additive prepared in the second step are taken, the composite traditional Chinese medicine extract, the composite additive and the carrier are weighed according to the formula proportion of the supplementary feeding concentrate, the carrier is the additive powder, then the supplementary feeding concentrate is placed in a stirring machine, and the supplementary feeding concentrate is obtained after uniform mixing and stirring;
in the fourth step, the supplementary feeding concentrate prepared in the third step is weighed according to the specification parameters of the product, is packaged in a vacuum mode by adopting an aluminum foil bag, and is stored in a dry, low-temperature, light-proof and ventilated environment.
The properties of the examples are compared in the following table:
Figure BDA0003581804670000091
based on the above, the formula of the invention adopts the compound traditional Chinese medicine, so that the invention has the functions of tonifying qi, promoting blood circulation, promoting lactation and promoting digestion, and can effectively improve the milk yield of the consumed cattle; the compound additive improves the palatability of concentrate by adding the flavoring agent and the flavoring agent, and improves the immunity of the yak by adding the compound vitamin and the beneficial bacteria; the finished product prepared by the invention is water-soluble powder, and can be better mixed with basic feed after being dissolved in water, so that the feed is ensured to be uniformly mixed.
It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Claims (9)

1. A supplementary feed concentrate capable of improving milk yield of yaks comprises the following components: the compound traditional Chinese medicine extract, the compound additive and the carrier are characterized in that: the weight percentage of each component is as follows: 30-40% of compound traditional Chinese medicine extract, 20-30% of compound additive and 30-50% of carrier.
2. The supplementary feed concentrate for increasing the milk yield of yaks according to claim 1, which is characterized in that: the weight percentage of each component is as follows: 35% of compound traditional Chinese medicine extract, 25% of compound additive and 40% of carrier.
3. A preparation method of supplementary feed concentrate capable of improving milk yield of yaks comprises the steps of preparing a compound traditional Chinese medicine extract; step two, preparing a composite additive; step three, preparing a finished product; step four, bagging and storing; the method is characterized in that:
wherein in the first step, the preparation of the composite traditional Chinese medicine extract comprises the following steps:
1) weighing the raw materials according to the formula proportion of the compound traditional Chinese medicine, placing the raw materials into a boiling pot,
adding appropriate amount of purified water, soaking at 60 deg.C for 60min, heating to 80-100 deg.C, and decocting under 0.12MPa for 1 hr to obtain medicinal liquid;
2) filtering the medicinal liquid with 0.65 μm filter, and concentrating the filtrate under 0.02MPa to obtain concentrated solution;
3) cooling the concentrated solution to below 60 ℃, conveying the concentrated solution to an alcohol precipitation tank for alcohol precipitation, and reacting for 1h to obtain an alcohol precipitation solution;
4) filtering the alcohol precipitation solution through a 0.45-micron filter, and heating the filtered alcohol precipitation solution under the condition of 0.04MPa to obtain an extracting solution;
5) spray drying the extractive solution to obtain compound Chinese medicinal extract;
in the second step, the raw materials are weighed according to the formula proportion of the composite additive, placed in a stirrer and uniformly mixed and stirred to obtain the composite additive;
in the third step, the compound traditional Chinese medicine extract prepared in the first step and the compound additive prepared in the second step are taken, the compound traditional Chinese medicine extract, the compound additive and the carrier are weighed according to the formula proportion of the supplementary feeding concentrate, the mixture is placed in a stirrer and is uniformly mixed and stirred to obtain the supplementary feeding concentrate;
in the fourth step, the supplementary feeding concentrate prepared in the third step is weighed according to the specification parameters of the product, is packaged in a vacuum mode by adopting an aluminum foil bag, and is stored in a dry, low-temperature, light-proof and ventilated environment.
4. The preparation method of the supplementary feed capable of improving the milk yield of yaks according to claim 3, which is characterized by comprising the following steps: in the step 1), the mass percentage of each component of the composite traditional Chinese medicine is as follows: 30% of motherwort, 25% of cowherb seed, 15% of ricepaper pith, 10% of astragalus membranaceus, 5% of angelica, 5% of codonopsis pilosula, 5% of bighead atractylodes rhizome and 5% of uniflower swisscentaury root.
5. The preparation method of the supplementary feed concentrate for increasing the milk yield of yaks according to claim 3, which is characterized in that: in the step one 3), the mass content of the ethanol in the ethanol precipitation tank is 95%.
6. The preparation method of the supplementary feed concentrate for increasing the milk yield of yaks according to claim 3, which is characterized in that: in the step one 5), the temperature parameters of spray drying are as follows: the temperature of the air inlet is 160 ℃, and the temperature of the air outlet is 80 ℃.
7. The preparation method of the supplementary feed capable of improving the milk yield of yaks according to claim 3, which is characterized by comprising the following steps: in the second step, the composite additive comprises the following components in percentage by mass: 25% of compound vitamin, 2% of flavoring agent, 6% of beneficial bacteria, 12% of flavoring agent, 2% of mildew preventive, 40% of energy additive and 13% of amino acid.
8. The preparation method of the supplementary feed concentrate for increasing the milk yield of yaks according to claim 7, which is characterized in that: the compound vitamin is formed by compounding vitamin A, vitamin D, vitamin E and beta-carotene; the flavoring agent is composed of two or more of sodium glutamate, sodium chloride, citric acid, lactose and maltose; the mildew preventive is sodium diacetate; the energy additive is fatty acid calcium.
9. The preparation method of the supplementary feed concentrate for increasing the milk yield of yaks according to claim 3, which is characterized in that: in the third step, the carrier is the beneficial powder.
CN202210353542.1A 2022-04-06 2022-04-06 Supplementary feed concentrate capable of increasing milk yield of yaks and preparation method thereof Pending CN114617196A (en)

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Application publication date: 20220614