CN114601049A

CN114601049A - Feed for improving milk protein rate of dairy cows, preparation method of feed and dairy cow feeding method

Info

Publication number: CN114601049A
Application number: CN202210398963.6A
Authority: CN
Inventors: 李婉; 王伟; 王岗; 赵军; 刘桂瑞
Original assignee: Beijing Jiuzhou Dadi Biological Technology Group Co ltd
Current assignee: Beijing Jiuzhou Dadi Biological Technology Group Co ltd
Priority date: 2022-04-16
Filing date: 2022-04-16
Publication date: 2022-06-10

Abstract

The application relates to the technical field of dairy cow feeding, and particularly discloses a feed for improving the milk protein rate of a dairy cow, a preparation method of the feed and a dairy cow feeding method. The feed comprises the following raw materials in parts by weight: 2-8 parts of Chinese wildrye, 20-30 parts of corn silage, 18-26 parts of alfalfa hay, 15-27 parts of corn, 8-18 parts of soybean meal, 2-6 parts of cottonseed, 0.3-0.6 part of premix, 0.2-1 part of salt and 5-15 parts of milk quality improving particles; the milk quality improving granule comprises the following components: 0.0001-0.0015 part of bakuchiol, 25-46 parts of isobutyric maltol ester and 1-13 parts of enteric coating material; the method for feeding the dairy cows comprises the following steps: comprises the step of feeding the feed 30-60 days before the perinatal period, the perinatal period and at least one stage of the lactation period of the dairy cattle. The feed and the feeding method have the advantages of obviously improving the milk yield and the milk lactoprotein content.

Description

Feed for improving milk protein rate of dairy cows, preparation method of feed and dairy cow feeding method

Technical Field

The application relates to the technical field of dairy cow feeding, in particular to a feed for improving the milk protein rate of a dairy cow, a preparation method thereof and a dairy cow feeding method.

Background

Milk protein and milk fat content are important criteria for assessing the quality of milk. The proteins in milk are mainly casein and whey proteins, wherein casein includes alpha-casein, beta-casein and gamma-casein, and whey proteins include beta-lactoglobulin and alpha-lactalbumin. Casein is the most important component of milk protein, and accounts for 85% of crude protein and 90% of true protein. At present, the development of the milk industry of European countries is more advanced, the milk protein content in the milk is higher, and the milk protein content in the current milk of China is still at a medium-low level.

The level of milk protein in milk is related to various factors, such as the amino acid level of the ration, the protein content, the energy level of the ration, the type and content of hormones, the type of forage grass of the ration, trace elements and vitamins, etc. In the related research aiming at improving the milk yield of the dairy cows and the content of the milk protein in the milk, the rumen bypass protein is added into the feed to improve the content of the milk protein in the milk; the milk quality is improved by adding vitamins such as folic acid, selenium and the like and trace elements; the milk protein rate of the milk is improved by adjusting the feeding method of the milk cow.

However, the milk obtained by the method has milk yield and milk protein rate which are still not comparable with foreign milk; therefore, the improvement of milk production and milk protein content in milk is still a research and effort.

Disclosure of Invention

In order to further improve the milk yield of the dairy cow and the milk albumin rate in the milk, the application provides the feed for improving the milk albumin rate of the dairy cow, the preparation method thereof and the dairy cow feeding method.

In a first aspect, the application provides a feed for improving the milk protein rate of a cow, which adopts the following technical scheme:

the feed for improving the milk protein rate of the dairy cows comprises the following raw materials in parts by weight:

2-8 parts of Chinese wildrye, 20-30 parts of corn silage, 18-26 parts of alfalfa hay, 15-27 parts of corn, 8-18 parts of soybean meal, 2-6 parts of cottonseed, 0.3-0.6 part of premix, 0.2-1 part of salt and 5-15 parts of milk quality improving particles;

taking the weight of the milk quality improving particles as a reference, the milk quality improving particles comprise the following raw materials: 0.0001-0.0015 part of bakuchiol, 25-46 parts of isobutyric maltol ester and 1-13 parts of enteric coating material.

By adopting the technical scheme, the bakuchiol has certain medicinal effects of diminishing inflammation, resisting bacteria and inhibiting viruses, improving skin effect and the like. However, the application finds that the ordinary substances with similar functions do not have obvious effects of promoting and improving the milk yield and the lactation function of the dairy cows after being independently added into the feed. Maltol isobutyrate, however, is often used as an essence to improve the taste of the feed and thus to increase the feeding interest of the cows. However, the applicant found in experiments that the mutual combination of bakuchiol and maltol isobutyrate can significantly improve the milk yield of cows and the milk protein content in milk by adding both bakuchiol and maltol isobutyrate to the feed. In addition, the milk quality improving pellet added to the feed can have an excellent effect of improving milk quality within the above-mentioned amount range. In addition, in the research, a certain amount of enteric coating materials are added into the milk quality improving particles, so that the milk quality improving particles are endowed with the characteristic of being digested and absorbed mainly in the intestinal tract, and the feed can have more excellent effect of improving the milk protein rate in milk.

In this embodiment, an enteric coating refers to a material that is not or not completely digested and absorbed in the stomach of the animal, but is digested and absorbed in the intestine. The material of the enteric coating is selected from one or more of acrylic resin, cellulose acetate phthalate, polyvinyl alcohol phthalate, cellulose acetate trimellitate and the like. The acrylic resin can be acrylic resin No. I, acrylic resin No. II, acrylic resin No. III, acrylic resin EuS100 or acrylic resin Eu 1100. The enteric coating material in the application can be obtained in a market way, and can also be prepared from different raw materials and methods.

Optionally, the milk quality improving particle has a particle size of 0.1-1.2 mm.

By adopting the technical scheme, the particle size of the milk quality improving particle with the particle size is not very large, and the milk quality improving particle is not easy to be damaged by physical external force in the process of chewing the feed by the dairy cow, so that the milk quality improving particle can enter intestines and stomach in a complete particle shape for digestion and absorption. In addition, the milk quality improving granule with the particle size range can be well eaten by the dairy cow, otherwise, if the particle size of the milk quality improving granule is larger, the eating interest of the dairy cow can be directly influenced.

Optionally, the milk quality improving particle is prepared by a method comprising the following steps:

I. mixing bakuchiol and maltol isobutyrate to obtain an inner core mixture for later use;

taking enteric coating materials for later use;

II. Spray drying the inner core mixture and the enteric coating material to obtain the milk quality improving granule.

In the scheme, the bakuchiol and the maltol isobutyrate are mixed to form an inner core layer, and the enteric coating material is coated outside the inner core layer to form a coating layer. After the dairy cow eats the feed, the milk quality improving granule can be digested and absorbed in the stomach of the dairy cow as little as possible, wherein the substances (bakuchiol and maltol isobutyrate) in the inner core layer can enter the intestinal tract of the dairy cow more to be digested and absorbed. The applicant has found that such milk quality improving pellets, when added to a feed, give a better performance in promoting milk production and increasing the rate of milk, such as protein.

Optionally, the temperature of spray drying is 40-70 ℃.

Optionally, the raw material of the milk quality improving particle further comprises 0.0002 to 0.0014 part of 5-hydroxytryptamine by weight of the milk quality improving particle.

By adopting the technical scheme, the 5-hydroxytryptamine is a substance capable of enabling people to feel happy, and the applicant finds that after a proper amount of 5-hydroxytryptamine is added, the 5-hydroxytryptamine can act together with maltol isobutyrate; after the dairy cow eats the feed, the milk protein content in the milk is further improved.

Optionally, with reference to the weight of the enteric coating material, the enteric coating material comprises the following raw materials in parts by weight: 55-75 parts of alkaline gelatin, 6-15 parts of xanthan gum and 20-35 parts of glycerol.

I. mixing bakuchiol with 60-80wt% maltol isobutyrate to obtain an inner core mixture for later use;

mixing 5-hydroxytryptamine and the rest maltol isobutyrate to obtain a coating mixture for later use;

taking enteric coating materials for later use;

II. Spray drying the inner core mixture and the enteric coating material to obtain a crude milk quality improving granule;

and III, mixing the outer coating mixture with the milk quality improving particle crude product, and drying to obtain the milk quality improving particle.

By adopting the above technical scheme, in the scheme, the obtained milk quality improving particle comprises an inner core layer (formed by taking an inner core mixture, namely psoralen and maltol isobutyrate as raw materials), a coating layer (formed by taking an enteric coating mixture, namely alkaline gelatin, xanthan gum and glycerol as raw materials) and an outer coating layer (formed by taking an outer coating mixture, namely 5-hydroxytryptamine and maltol isobutyrate as raw materials). Wherein the substances of the outer coating layer (5-hydroxytryptamine and maltol isobutyrate) are digested and absorbed in stomach to expose the coating layer, but the coating layer is not digested and absorbed in stomach; after the milk quality improving granule containing the coating layer and the inner core layer gradually enters the intestinal tract, the coating layer is decomposed in the intestinal tract to expose the inner core layer; the substances of the inner core layer (bakuchiol and maltol isobutyrate) are digested and absorbed in intestinal tract. In this way, different components are digested and absorbed by intestinal tract and stomach part respectively, and milk yield of cow and milk protein content can be further improved.

In a second aspect, the application provides a preparation method of a feed for increasing the milk protein rate of a cow, which adopts the following technical scheme:

a preparation method of a feed for improving the milk protein rate of dairy cows comprises the following steps:

uniformly mixing the leymus chinensis, corn silage, alfalfa hay, corn, soybean meal, cottonseed, premix, salt and the milk quality improving particles to obtain the feed.

In a third aspect, the application provides a dairy cow feeding method for improving the milk protein rate of dairy cows, which adopts the following technical scheme:

a method for raising milk cow to increase milk protein rate of milk cow comprises feeding the feed 30-60 days before perinatal period, perinatal period and at least one stage of lactation period.

Optionally, 20-40wt% of the feed for dairy cows fed 30-60 days before the perinatal period is the feed, and 60-80wt% of the feed is traditional feed; 80-90wt% of the feed for dairy cows fed in the perinatal period is the feed, and 10-20wt% of the feed is the traditional feed; the milk cow feed fed in the lactation period is the feed.

In the scheme, the meaning that 20-40wt% of the feed for the dairy cattle fed 30-60 days before the perinatal period is the feed is as follows: in the 30-60 days before the perinatal period, in the feed for feeding the dairy cows each time, the total weight of the feed for feeding the dairy cows each time is 100 percent by weight, wherein 20-40 percent by weight of the feed is the feed (the feed is the feed for improving the milk protein rate of the dairy cows), and 60-80 percent by weight of the feed is the traditional feed different from the feed.

In the feeding method, the feed prepared by the method is matched with the traditional feed to feed the dairy cattle, and the feed amount of the dairy cattle fed each time is the sum of the feed amount of the feed prepared by the method and the feed amount of the traditional feed; namely: the amount of the dairy cattle feed is the amount of the feed prepared by applying and the amount of the traditional feed.

Optionally, the traditional feed comprises the following components in parts by weight based on the weight of the traditional feed: 2-8 parts of Chinese wildrye, 20-30 parts of corn silage, 18-26 parts of alfalfa hay, 15-27 parts of corn, 8-18 parts of soybean meal, 2-6 parts of cottonseed, 0.3-0.6 part of premix and 0.2-1 part of salt.

In summary, the present application has the following beneficial effects:

1. the application adds the milk quality improving particles into the feed for feeding the dairy cows, the milk quality improving particles are expected to be digested and absorbed in intestinal tracts, and the bakuchiol and the maltol isobutyrate are used as main effective substances, and the two raw materials interact with each other to realize the effect of effectively improving the milk yield of the dairy cows and the content of milk protein in the milk.

2. In the scheme of the application, 5-hydroxytryptamine can be added into the raw materials of the milk quality improving particles to further improve the milk yield of the dairy cows and the milk protein content of the milk.

3. When the milk quality improving particle is prepared, the prepared milk quality improving particle has a three-layer structure, an outer coating layer is prepared by coating a coating layer with part of maltol isobutyrate and 5-hydroxytryptamine as raw materials, the coating layer is prepared by an enteric mixture, and an inner core layer is coated in the coating layer; the purpose of this treatment is that 5-hydroxytryptamine and maltol isobutyrate interact and are digested and absorbed in the stomach; the malaytea scurfpea phenol and the maltol isobutyrate are digested and absorbed in the intestinal tract, so that the digestion and absorption process can further improve the milk yield of the dairy cows and the content of milk protein in the milk.

Detailed Description

The present application will be described in further detail with reference to examples.

The raw materials referred to in this application are, unless otherwise specified, commonly available.

All the following preparation examples and examples, comparative examples are provided only as an example of preparation, and if there is insufficient amount of raw materials to satisfy the amount of feeding in practical use, the amount of raw materials of each component may be prepared multiple times or expanded in equal proportion to prepare the amount required for feeding.

Preparation of milk quality improving granule

Milk quality improving granule production example 1

Preparation of milk quality improving granules:

I. 0.1g of bakuchiol, 25kg of maltol isobutyrate and 1kg of enteric coating material were prepared. The enteric coating material is prepared from the following raw materials: 1.1kg of alkaline gelatin, 0.12kg of xanthan gum and 0.4kg of glycerol; the preparation method comprises the following steps of mixing the above-mentioned dosage of alkaline gelatin, xanthan gum and glycerol, and then measuring 1kg of the obtained enteric coating material for preparing the dairy product improving granule. The raw materials for preparing the enteric coating material comprise B type alkali bovine bone gelatin which is commercially obtained and is a medicinal type. Wherein the psoralen is CAS 10309-37-2.

Mixing the above amount of bakuchiol and maltol isobutyrate to obtain an inner core mixture for later use;

taking the enteric coating material with the dosage for standby;

II. Spray drying the inner core mixture and the enteric coating material at 40 deg.C to obtain milk quality improving granule with particle diameter of 0.5-1.2 mm.

Milk quality improving granule preparation example 2

Preparation of milk quality improving granules:

I. 1.5g of bakuchiol, 46kg of maltol isobutyrate and 13kg of enteric coating material were prepared. The enteric coating material is prepared from the following raw materials: 15kg of alkaline gelatin, 3kg of xanthan gum and 7kg of glycerol; mixing the above amount of alkali gelatin, xanthan gum and glycerol, and measuring 13kg from the prepared enteric coating material for preparing the dairy product improving granule. The selection of the raw materials for preparing the enteric coating material was the same as that in preparation example 1.

taking the enteric coating material with the dosage for standby;

II. Spray drying the inner core mixture and the enteric coating material at 70 deg.C to obtain milk quality improving granule with particle diameter of 0.1-0.8 mm.

Milk quality improving granule preparation example 3

Preparation of milk quality improving granules:

I. 1g of bakuchiol, 35kg of maltol isobutyrate and 5kg of enteric coating material were prepared. The enteric coating material is prepared from the following raw materials: 5kg of alkaline gelatin, 1kg of xanthan gum and 2.5kg of glycerol; the preparation method comprises the following steps of mixing the above-mentioned dosage of alkaline gelatin, xanthan gum and glycerol, and then measuring 5kg of the prepared enteric coating material for preparing the dairy product improving granule. The selection of the raw materials for preparing the enteric coating material was the same as that in preparation example 1.

taking the enteric coating material with the dosage for standby;

II. Spray drying the inner core mixture and the enteric coating material at 55 deg.C to obtain milk quality improving granule with particle diameter of 0.6-1.0 mm.

Milk quality improving granule preparation example 4

The difference between this preparation example and preparation example 3 is that the raw material for preparing the milk quality improving granule further contains 0.8g of 5-hydroxytryptamine, and the other steps are the same as those of preparation example 3.

The preparation method of the milk quality improving particles of the preparation example comprises the following steps:

I. 1g of bakuchiol, 35kg of maltol isobutyrate, 5kg of enteric coating material and 0.8g of 5-hydroxytryptamine were prepared. Wherein the enteric coating material is the same as the preparation example 3.

Mixing the above-mentioned doses of bakuchiol, maltol isobutyrate and 5-hydroxytryptamine to obtain an inner core mixture for later use; taking the enteric coating material with the dosage for standby;

II. The same as in preparation example 3.

Milk quality improving granule preparation example 5

The difference between the present production example and production example 4 is that the production method of the milk quality improving granule is different, and the other production examples are the same as production example 4.

I. 1g of bakuchiol, 35kg of maltol isobutyrate, 5kg of enteric coating material and 0.8g of 5-hydroxytryptamine were prepared. Wherein the enteric coating material is the same as the preparation example 4.

Mixing the above amount of bakuchiol with 24.5kg maltol isobutyrate to obtain an inner core mixture for later use;

mixing the 5-hydroxytryptamine with the above amount and 10.5kg maltol isobutyrate to obtain a coating mixture for later use;

taking the enteric coating material with the dosage for standby;

II. The same as in preparation example 4.

Milk quality improving granule preparation example 6

The difference between the present preparation example and preparation example 3 is that the raw materials for preparing the milk quality improving granule do not contain the enteric coating material, and specifically, the raw materials include 1g of bakuchiol and 35kg of maltol isobutyrate. In addition, the preparation methods of the milk quality improving granules are also different, and the preparation method of the milk quality improving granules in the preparation example specifically comprises the following steps: mixing the raw materials of 1g of bakuchiol and 35kg of maltol isobutyrate in the amount to obtain milk quality improving granules; in the present production example, the milk quality improving particles obtained were in the form of a powder having a shape that is not distinct.

Milk quality improving granule production example 7

The difference between the present preparation example and preparation example 3 is that the raw materials for preparing the milk quality improving granule do not contain bakuchiol, specifically, 35kg of maltol isobutyrate and 5kg of enteric coating material. The selection of the enteric coating material was the same as that of preparation example 3.

The preparation method of the milk quality improving particles comprises the following steps:

I. preparing 35kg of maltol isobutyrate and 5kg of enteric coating material;

II. Spray-drying maltol isobutyrate and enteric coating material at 55 deg.C, and sieving to obtain milk quality improving granule with particle diameter of 0.5-1.1 mm.

Milk quality improving granule preparation example 8

The difference between this preparation example and preparation example 5 is that the amount of bakuchiol used is different; the specific raw materials comprise 2g of bakuchiol, 35kg of isobutyric acid maltol ester, 5kg of enteric coating material and 0.8g of 5-hydroxytryptamine.

The preparation method of the milk quality improving granule in the preparation example comprises the following steps:

I. 2g of bakuchiol, 35kg of maltol isobutyrate, 5kg of enteric coating material and 0.8g of 5-hydroxytryptamine were prepared. Wherein the enteric coating material is the same as the preparation example 5.

mixing the 5-hydroxytryptamine with 10.5kg maltol isobutyrate to obtain a coating mixture for later use;

taking the enteric coating material with the dosage for standby;

II. The same as in preparation example 5.

Milk quality improving granule preparation example 9

The difference between this preparation example and preparation example 5 is that psoralen phenol was replaced with an equal weight of tangeretin; the specific raw materials comprise 1g of tangeretin, 35kg of maltol isobutyrate, 5kg of enteric coating material and 0.8g of 5-hydroxytryptamine; the rest is the same as in preparation example 5. Wherein the tangeretin is an tangeretin extract containing tangeretin 45-65 wt%; the tangeretin is a main antibacterial and anti-inflammatory substance; citrus flavones were obtained commercially from Seisan xiancao plant science and technology, Inc.

Milk quality improving granule preparation example 10 (comparative preparation example-comparative example)

The difference between the preparation example and the preparation example 5 is that the bakuchiol is replaced by the bacteriostatic agent for the dairy cows with equal weight; the specific raw materials comprise 1g of bacteriostatic agent for dairy cows, 35kg of maltol isobutyrate, 5kg of enteric coating material and 0.8g of 5-hydroxytryptamine; the rest is the same as in preparation example 5. Wherein, the core component of the antibacterial agent for cow is a saturated medium-chain fatty acid, the C chain length of the medium-chain fatty acid is 6-12, and the medium-chain fatty acid comprises caproic acid (C6), caprylic acid (C8), capric acid (C8) and lauric acid (C12); the medium-chain fatty acid has excellent antibacterial and anti-inflammatory effects; the bacteriostatic drug is commercially available, contains caproic acid, caprylic acid, capric acid, lauric acid, isoamyl acetate and the like, and is purchased from Vitamet company of Belgium.

Examples of feeds

Feed example 1

A feed for improving the milk protein rate of dairy cows comprises the following raw materials: 2kg of Chinese wildrye, 20kg of corn silage, 18kg of alfalfa hay, 15kg of corn, 8kg of soybean meal, 2kg of cottonseed, 0.3kg of premix, 0.2kg of salt and 5kg of milk quality improving particles. The raw materials are mixed and stirred evenly to obtain the feed. Wherein the milk quality improving granule is prepared by milk quality improving granule preparation example 1; the premix is commercially available and purchased from milk-producing cows of the great eagle farming and animal husbandry limited company of Beijing.

Feed example 2

A feed for improving the milk protein rate of dairy cows comprises the following raw materials: 8kg of Chinese wildrye, 30kg of corn silage, 26kg of alfalfa hay, 27kg of corn, 18kg of soybean meal, 6kg of cottonseed, 0.6kg of premix, 1kg of salt and 15kg of milk quality improving particles. The raw materials are mixed and stirred evenly to obtain the feed. The milk quality improving granule was prepared from milk quality improving granule preparation example 2, and the other examples were the same as example 1.

Feed example 3

A feed for improving the milk protein rate of dairy cows comprises the following raw materials: 6kg of Chinese wildrye, 26kg of corn silage, 22kg of alfalfa hay, 21kg of corn, 12kg of soybean meal, 4kg of cottonseed, 0.4kg of premix, 0.7kg of salt and 11kg of milk quality improving particles. The raw materials are mixed and stirred evenly to obtain the feed. The milk quality improving granule was prepared from milk quality improving granule preparation example 3, and the other examples were the same as example 1.

Feed example 4

This example is different from example 3 in that milk quality improving granules were prepared from milk quality improving granule preparation example 4, and the other example was the same as example 3.

Feed example 5

This example differs from example 3 in that milk quality improving granules were prepared from milk quality improving granule preparation example 5, and the other examples are the same as example 3.

Feed example 6

This example differs from example 5 in that the amount of milk quality improving particles used was 5 kg; namely, the feed of the embodiment comprises the following raw materials: 6kg of Chinese wildrye, 26kg of corn silage, 22kg of alfalfa hay, 21kg of corn, 12kg of soybean meal, 4kg of cottonseed, 0.4kg of premix, 0.7kg of salt and 5kg of milk quality improving particles; the rest is the same as example 5.

Feed example 7

This example differs from example 5 in that the amount of milk quality improving particles was 15 kg; namely, the feed of the embodiment comprises the following raw materials: 6kg of Chinese wildrye, 26kg of corn silage, 22kg of alfalfa hay, 21kg of corn, 12kg of soybean meal, 4kg of cottonseed, 0.4kg of premix, 0.7kg of salt and 15kg of milk quality improving particles; the rest is the same as example 5.

Comparative feed

Comparative feed example 1

The present comparative example differs from example 5 in that milk quality improving granules were prepared from milk quality improving granule preparation example 6, and the other examples are the same as example 5.

Comparative feed example 2

The present comparative example differs from example 5 in that milk quality improving granules were prepared from milk quality improving granule preparation example 7, and the other examples are the same as example 5.

Comparative feed example 3

The present comparative example differs from example 5 in that milk quality improving particles were prepared from milk quality improving particle preparation example 8, and the other examples are the same as example 5.

Comparative feed example 4

The present comparative example differs from example 5 in that milk quality improving granules were prepared from milk quality improving granule preparation example 9, and the other examples are the same as example 5.

Comparative feed example 5

The present comparative example differs from example 5 in that milk quality improving particles were prepared from milk quality improving particle preparation example 10, and the other examples are the same as example 5.

Comparative feed example 6

The present comparative example differs from example 5 in that the raw materials for preparing the feed do not contain the milk quality improving pellets, that is, the feed of the present comparative example has the following composition of raw materials: 6kg of Chinese wildrye, 26kg of corn silage, 22kg of alfalfa hay, 21kg of corn, 12kg of soybean meal, 4kg of cottonseed, 0.4kg of premix and 0.7kg of salt; the rest is the same as example 5.

Comparative feed example 7

The present comparative example differs from example 5 in that the amount of the milk quality improving particles was 2 kg; namely, the feed of the embodiment comprises the following raw materials: 6kg of Chinese wildrye, 26kg of corn silage, 22kg of alfalfa hay, 21kg of corn, 12kg of soybean meal, 4kg of cottonseed, 0.4kg of premix, 0.7kg of salt and 2kg of milk quality improving particles; the rest is the same as example 5.

Comparative feed example 8

The present comparative example differs from example 5 in that the amount of milk quality improving particles was 18 kg; namely, the feed of the embodiment comprises the following raw materials: 6kg of Chinese wildrye, 26kg of corn silage, 22kg of alfalfa hay, 21kg of corn, 12kg of soybean meal, 4kg of cottonseed, 0.4kg of premix, 0.7kg of salt and 18kg of milk quality improving particles; the rest is the same as example 5.

Embodiments of a method for raising dairy cows

Example 1 cow raising method

A method for raising dairy cows to improve the milk protein rate of the dairy cows comprises the following steps of feeding 20wt% of the feed prepared in the feed example 1 and 80wt% of the feed prepared in the traditional feed in the dairy cow feed which is fed 30 days before the perinatal period; then 80wt% of the feed prepared in feed example 1 and 20wt% of the feed of the dairy cattle fed in the perinatal period are traditional feeds; the dairy cattle feed fed in the lactation period is the feed prepared in the feed example 1.

The traditional feed comprises the following components in parts by weight: 2kg of Chinese wildrye, 20kg of corn silage, 18kg of alfalfa hay, 15kg of corn, 8kg of soybean meal, 2kg of cottonseed, 0.3kg of premix and 0.2kg of salt. The traditional feed is obtained by uniformly mixing the raw materials.

Example 2 of cow raising method

A method for raising milk cow for increasing milk protein rate of milk cow comprises feeding milk cow 30 days before perinatal period with 40wt% of feed prepared in feed example 2 and 60 wt% of conventional feed; then 90wt% of the cow feed fed in the perinatal period is the feed prepared in feed example 2, and 10 wt% is the traditional feed; the dairy cattle feed fed in the lactation period is the feed prepared in the feed example 2.

The traditional feed comprises the following components in parts by weight: 8kg of Chinese wildrye, 30kg of corn silage, 26kg of alfalfa hay, 27kg of corn, 18kg of soybean meal, 6kg of cottonseed, 0.6kg of premix and 1kg of salt. The traditional feed is obtained by uniformly mixing the raw materials.

Example 3 of cow raising method

A method for raising milk cow for increasing milk protein rate of milk cow comprises feeding 30 wt% of milk cow feed 30 days before perinatal period as feed prepared in feed example 3, and 70 wt% as traditional feed; then 85 wt% of the feed prepared in feed example 3 is used in the dairy cattle feed fed in the perinatal period, and 15 wt% is traditional feed; the dairy cattle feed fed in the lactation period is the feed prepared in the feed example 3.

The traditional feed comprises the following components in parts by weight: 6kg of Chinese wildrye, 26kg of corn silage, 22kg of alfalfa hay, 21kg of corn, 12kg of soybean meal, 4kg of cottonseed, 0.4kg of premix and 0.7kg of salt. The traditional feed is obtained by uniformly mixing the raw materials.

Examples 4 to 7 of the cow raising method

Examples 4-7 of the cow raising method and example 3 of the cow raising method are different in the source of the feed for feeding cows in combination with a conventional feed, as shown in table 1.

TABLE 1 feed sources for feeding cows in combination with conventional feed in examples of different cow feeding methods

Comparative example of cow raising method

Comparative examples 1 to 8 of cow raising method

Comparative examples 1 to 8 of the cow raising method and example 3 of the cow raising method are different in the source of the feed for feeding cows in combination with the conventional feed, as shown in table 2.

TABLE 2 feed sources for feeding cows in combination with conventional feed in comparative examples of different cow feeding methods

Influence of different feeds on milk yield and milk protein content of cows

Selecting 180 Chinese Holstein cows with basically consistent conditions of fetal times, weight, estimated delivery period and weight; wherein the selection criteria of the dairy cows are: 25-30 days before perinatal period; the weight of the cow is 500 plus or minus 2 kg. Randomly selecting 15 heads as a test group, and dividing the test group into 15 test groups; 3 groups per test group, 4 groups per group; the 15 test groups are numbered 1-15 in sequence, and the dairy cows of the test group are fed by the methods of examples 1-7 of the dairy cow feeding method and comparative feed examples 1-8 of the dairy cow feeding method respectively, and the average value of the dry matter intake of the dairy cows is 19.23 kg/day. All cows were housed in tethered cattle pens and fed three times a day, 6:00 in the morning, 12:30 at noon, and 19:00 in the evening; and milking while feeding cows.

Then, the milk yield of 7 days (perinatal period) and 2 months (lactation period) of calving of the dairy cattle is counted, and the specific numerical values are shown in table 3.

TABLE 3 milk yield, milk protein content and milk fat content of the cows of different test groups at different stages

The cows of the test groups 1 to 7 are cows fed by the method of examples 1 to 7 of the cow feeding method, respectively, and the feeds for feeding cows by compounding with the conventional feeds are feeds prepared by the feed preparation examples 1 to 7, respectively. As seen from the results in table 3, the milk yield, milk protein content and milk fat content of the perinatal cows (i.e. cows calving 7 days) were significantly improved by feeding the feed prepared according to the present invention, compared to the test groups 8-15. Wherein, the milk yield of the dairy cows of the test groups 1-7 is 22.1-25.8 kg/day, the milk yield of the dairy cows of the test groups 8-15 is 19.2-20.7 kg/day, and the milk yield of the dairy cows of the test groups 1-7 is increased by 6.76-34.36% compared with the milk yield of the dairy cows of the test groups 8-15; the milk protein content in the milk of the test groups 1-7 is increased by 1.64-18.71% compared with the milk of the test groups 8-15; the milk fat content in the milk of the test groups 1-7 is increased by 2.07-40.66% compared with the milk of the test groups 8-15. In addition, the milk yield, the milk protein content and the milk fat content of the cows in the lactation period (namely, the cows during the 2-month calving period) are obviously improved by feeding the feed prepared by the application.

Compared with the test group 5 and the test group 13, the milk quality improving particles are not added in the fed feed, and the milk yield and the milk quality of the dairy cows are directly reduced. This fully demonstrates the significant effect of the feed of the present application in increasing milk production and improving milk quality (milk protein content and milk fat content) of dairy cows.

Compared with the test group 3 and the test group 8, the milk yield of the dairy cows in the perinatal period and the lactation period, the content of milk protein in the milk and the content of milk fat in the milk are all obviously reduced. In the test group 3, bakuchiol and maltol isobutyrate are coated by an enteric coating material, so that the bakuchiol and maltol isobutyrate interact in the intestinal direction and are digested and absorbed; in test group 8, the bakuchiol and maltol isobutyrate were directly mixed and added to the feed (i.e., without being coated with an enteric coating), and the bakuchiol and maltol isobutyrate were easily digested and absorbed in the stomach of the cow. The result shows that the malaytea scurfpea phenol and the maltol isobutyrate are digested and absorbed in the intestinal tract to better exert the effect of promoting the milk yield of the dairy cows in the perinatal period and the lactation period, and the milk protein content and the milk fat content in the milk in the two periods are improved.

The comparison of the data results of test group 3 and test group 9 shows the importance of the addition of bakuchiol in the preparation of milk quality improving granules. If maltol isobutyrate is coated only in the enteric coating as in test group 9, the effect of the obtained feed on promoting milk production of cows, increasing the milk protein content and the milk fat content in milk will be significantly reduced.

In addition, it can be seen by comparing the data results of the test groups 3 and 4 that when the milk quality improving granule is prepared, the enteric coating material is coated with a certain amount of 5-hydroxytryptamine while the psoralen and the maltol isobutyrate are coated, wherein the 5-hydroxytryptamine plays a certain role in improving the mood of the milk cow, and the 5-hydroxytryptamine further interacts with the psoralen and the maltol isobutyrate to jointly improve the milk yield of the milk cow, the milk protein content in the milk and the milk fat content.

The applicant found, in further studies, that a method for producing milk quality improving granules, namely, milk quality improving granule production example 5, which is based on milk quality improving granule production example 4, was a milk quality improving granule having a three-layer structure, wherein an outer coating layer was formed by coating a coating layer with a partially isobutyric acid maltol ester and 5-hydroxytryptamine as raw materials, a coating layer was formed by coating an enteric mixture, and an inner core layer was formed by coating a coating layer with the remaining isobutyric acid maltol ester and psoralen as raw materials. After the milk quality improving particles enter the intestines and stomach of the dairy cow, firstly, 5-hydroxytryptamine and maltol isobutyrate interact with each other and are digested and absorbed in the stomach; subsequently, bakuchiol and maltol isobutyrate were digested and absorbed in the intestinal tract, and such a digestion and absorption process could further increase the milk yield of cows and the milk protein content in milk (compare test group 4 and test group 5).

In addition, the data results of the test group 5 and the test groups 11-12 show that the conventional raw materials with the antibacterial and anti-inflammatory effects are used for replacing bakuchiol, and the prepared feed cannot achieve the effect of obviously improving the milk yield and the milk quality of the dairy cows.

The present embodiment is only for explaining the present application, and it is not limited to the present application, and those skilled in the art can make modifications of the present embodiment without inventive contribution as needed after reading the present specification, but all of them are protected by patent law within the scope of the claims of the present application.

Claims

1. The feed for improving the milk protein rate of the dairy cows is characterized by comprising the following raw materials in parts by weight:

2. The feed of claim 1, wherein the milk quality improving pellet is prepared by a method comprising the steps of:

taking enteric coating materials for later use;

3. The feed according to claim 1, wherein the raw material of the milk quality improving granule further comprises 0.0002 to 0.0014 parts of 5-hydroxytryptamine, by weight of the milk quality improving granule.

4. The feed according to claim 3, wherein the milk quality improving pellet is prepared by a method comprising the steps of:

taking enteric coating materials for later use;

5. The feed according to any one of claims 1 to 4, wherein the enteric coating comprises the following raw materials in parts by weight, based on the weight of the enteric coating: 55-75 parts of alkaline gelatin, 6-15 parts of xanthan gum and 20-35 parts of glycerol.

6. A process for the preparation of the feed according to any one of claims 1 to 5, characterized in that it comprises the following steps:

7. A method of raising a cow to increase the milk protein rate of the cow comprising the step of feeding the feed of any one of claims 1 to 5 at least one of 30 to 60 days before the perinatal period, the perinatal period and the lactation period of the cow.

8. The method of feeding cows according to claim 7, wherein 20-40wt% of the feed for cows fed 30-60 days before the perinatal period is the feed, and 60-80wt% is a conventional feed; 80-90wt% of the feed for dairy cows fed in the perinatal period is the feed, and 10-20wt% of the feed is the traditional feed; the milk cow feed fed in the lactation period is the feed.