CN112544802A - Potassium magnesium sulfate composite crystal slow-release salt product for improving milk yield of dairy cows and preparation method thereof - Google Patents

Abstract

The invention provides a potassium magnesium sulfate composite crystal slow-release salt for improving milk yield of dairy cows, belonging to the technical field of livestock feed. The main components and contents of the potassium magnesium sulfate composite crystal slow-release salt are 50-60% of potassium magnesium sulfate crystal salt, 5-40% of a carrier and 5-40% of a plant extract; the preparation method comprises the following steps: stirring and mixing the potassium magnesium sulfate crystal salt and the carrier, then adding the carrier, stirring and mixing uniformly, finally adding the plant extract, stirring and mixing for 5-10 hours, and finally drying to obtain the potassium magnesium sulfate composite crystal slow-release salt product. The potassium magnesium replenisher is used as a potassium and magnesium replenisher for ruminants, is consistent with the requirement of organisms, has the characteristics of no heavy metal residue, stable performance, uniform granularity, good fluidity, good palatability and the like, and can obviously improve the milk yield of dairy cows.

Description

Potassium magnesium sulfate composite crystal slow-release salt product for improving milk yield of dairy cows and preparation method thereof

Technical Field

The invention belongs to the technical field of livestock feed, and particularly relates to a potassium magnesium sulfate composite crystal slow-release salt product for improving milk yield of dairy cows and a preparation method thereof.

Background

Numerous studies have demonstrated that potassium, magnesium and sulfur are essential nutrient elements for all animals. It has been thought in the past that in a ration, the content of these elements in the feed material itself can meet the needs of the animal. Today under intensive farming conditions, due to the continuous improvement of animal species, the increase of growth rate, the use of low quality feed stocks, and the variation of these elements in feed stocks, we must reconsider the potassium, magnesium and sulfur nutrition of animals in order to maximize the production potential of animals and maximize economic benefits. Potassium is the most mineral in the muscle, and fresh tissue of ruminants contains about 0.2% potassium; the amount of potassium deposited per kg of weight gain is practically the same for young ruminants, except for the first weeks of postnatal ontogeny (1.6-1.7 g). The milk contains about 1.5g of potassium per kg, and the potassium supplements for dairy cows on the market mainly comprise inorganic salts such as potassium chloride and the like, and potassium magnesium sulfate. The former has the advantages of rapid dissociation of potassium ions, rapid absorption and discharge by organisms, low bioavailability, 0.2% of potassium, 0.05% of magnesium and a potassium-magnesium ratio of 4:1 in animals, and the common potassium sulfate magnesium salt potassium-magnesium ratio in the market is 1.6-2:1, and the ratio is unbalanced and inconsistent with the needs of organisms.

Disclosure of Invention

Aiming at the defects of the prior art, the invention provides a potassium magnesium sulfate composite crystal slow-release salt product for improving the milk yield of dairy cows and a preparation method thereof. The invention uses minerals from the Qinghai Chaila basin Kerr sweat salt lake, and forms composite salts with slow-dissolving and slow-releasing characteristics through a special high-temperature melting crystallization process, thereby continuously providing potassium, magnesium and sulfur elements with high biological value and balanced absorption and utilization for dairy cows, improving the milk yield, and in addition, adding the codonopsis pilosula and astragalus mongholicus extracted by the company to extract pure powder, comprehensively improving the immunity, preventing mastitis, improving the milk yield and improving the milk quality; simple use and low cost.

The technical scheme of the invention is as follows:

a potassium magnesium sulfate composite crystal slow-release salt product for improving milk yield of dairy cows comprises the following raw materials in percentage by mass:

50-60% of potassium magnesium sulfate crystal salt

5 to 40 percent of carrier

5-40% of plant extract.

The molecular formula of the potassium magnesium sulfate crystal salt is K₂SO_4·MgSO_4·4H₂O。

The carrier is one or more of kaolin, bentonite, clay, medical stone or montmorillonite.

The plant extract is pure powder extracted from radix codonopsis and radix astragali.

The total sugar content of the radix codonopsitis and astragalus membranaceus extracted pure powder is more than or equal to 70 percent, and the astragaloside is more than or equal to 0.15 percent.

The total sugar is radix astragali polysaccharide and radix Codonopsis polysaccharide.

A preparation method of a potassium magnesium sulfate composite crystal slow-release salt product comprises the following specific steps:

stirring and mixing the potassium magnesium sulfate crystal salt and the carrier, then adding the carrier, stirring and mixing uniformly, finally adding the plant extract, stirring and mixing for 5-10 hours, and finally drying to obtain the potassium magnesium sulfate composite crystal slow-release salt product.

The beneficial technical effects of the invention are as follows:

the invention uses minerals from the Qinghai Chaila basin Kerr sweat salt lake to form composite salts with slow-dissolving and slow-releasing characteristics through a special high-temperature melting crystallization process, can continuously provide potassium (K), magnesium (Mg) and sulfur (S) elements with high biological value and balanced absorption and utilization for dairy cows, has a potassium-magnesium ratio of 4:1, is consistent with the requirements of dairy cows on organisms, is balanced in potassium and magnesium, has low magnesium content, and can be suitable for each stage of growth of the dairy cows. In addition, the product slowly releases mineral elements after entering the digestive tract, and compared with single mineral salt, the product has the advantages of long action time, small irritation to intestines and stomach and high bioavailability. The product is added with the codonopsis pilosula and astragalus root extracted pure powder extracted by the company, so that the immunity is comprehensively improved, the mastitis is prevented, the milk yield is improved, and the milk quality is improved.

Detailed Description

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

Example 1

A potassium magnesium sulfate composite crystal slow-release salt product and a preparation method thereof are as follows:

55 percent of potassium magnesium sulfate crystal salt

20 percent of bentonite

25% of plant extract;

stirring and mixing potassium sulfate magnesium sulfate composite crystal salt and a carrier, adding the carrier, stirring and mixing uniformly, finally adding a plant extract, stirring and mixing for 5 hours, and finally drying to obtain the potassium sulfate magnesium sulfate composite crystal slow-release salt product.

Example 2

A potassium magnesium sulfate composite crystal slow-release salt product and a preparation method thereof are as follows:

60 percent of potassium magnesium sulfate crystal salt

20 percent of kaolin

20% of plant extract;

stirring and mixing potassium sulfate magnesium sulfate composite crystal salt and a carrier, adding the carrier, stirring and mixing uniformly, finally adding a plant extract, stirring and mixing for 8 hours, and finally drying to obtain the potassium sulfate magnesium sulfate composite crystal slow-release salt product.

Example 3

A potassium magnesium sulfate composite crystal slow-release salt product and a preparation method thereof are as follows:

50 percent of potassium magnesium sulfate crystal salt

Montmorillonite 30%

20% of plant extract;

stirring and mixing potassium sulfate magnesium sulfate composite crystal salt and a carrier, adding the carrier, stirring and mixing uniformly, finally adding a plant extract, stirring and mixing for 10 hours, and finally drying to obtain the potassium sulfate magnesium sulfate composite crystal slow-release salt product.

Comparative example 1

In comparison with the potassium magnesium sulfate complex crystal slow release salt product obtained in example 1, the difference in comparison is that the comparative example has no plant extract, and the raw materials and the preparation method thereof are as follows:

stirring and mixing potassium chloride, magnesium oxide and a carrier, adding the carrier, stirring and mixing uniformly, finally adding the plant extract, stirring and mixing for 5 hours, and finally drying to obtain the potassium magnesium sulfate composite crystal slow-release salt product.

Comparative example 2

In comparison with the potassium magnesium sulfate complex crystal slow release salt product obtained in example 1, the difference in comparison is that the comparative example has no plant extract, and the raw materials and the preparation method thereof are as follows:

heating, stirring and mixing potassium carbonate, magnesium oxide and a carrier, adding the carrier, stirring and mixing uniformly, finally adding the plant extract, stirring and mixing for 5 hours, and finally drying to obtain the potassium magnesium sulfate composite crystal slow-release salt product.

Test example

After calving of 2-4 Holstein cows, 150 cows are born, the average weight is 585kg, the cows are divided into 3 groups and are continuously fed, 5 kg/ton of potassium chloride is additionally added in the group 1 (comparative example 1), 5 kg/ton of potassium-rich treasure is additionally added in the group 2 (example 1), and 5 kg/ton of potassium carbonate + oxidase is additionally added in the group 3 (comparative example 2), and the results are shown in table 1:

TABLE 1 Effect of different magnesium potassium sources on Heat-stressed milk production/kg

The same row data is marked with the same letter to indicate that the difference is not significant (P > 0.05); the data in the same row are marked with different lower case letters to show that the difference is significant (P < 0.05); it can be seen that the group added in example 1 reaches 23.85kg of milk yield and the difference between the other two groups is significant, which indicates that the group significantly improves the milk yield of the cow.

Claims (7)

1. The potassium magnesium sulfate composite crystal slow-release salt product for improving the milk yield of dairy cows is characterized by comprising the following raw materials in percentage by mass:

50-60% of potassium magnesium sulfate crystal salt

5 to 40 percent of carrier

5-40% of plant extract.

2. The potassium magnesium sulfate composite crystalline slow release salt product of claim 1, wherein the potassium magnesium sulfate crystalline salt has a molecular formula of K₂SO_4·MgSO_4·4H₂O。

3. The potassium magnesium sulfate composite crystalline slow-release salt according to claim 1, wherein the carrier is one or more of kaolin, bentonite, clay, medical stone or montmorillonite.

4. The potassium magnesium sulfate composite crystalline slow release salt product of claim 1, wherein the plant extract is a Codonopsis pilosula and Astragalus membranaceus extract pure powder.

5. The potassium magnesium sulfate composite crystal slow-release salt product as claimed in claim 4, wherein the total sugar content in the radix codonopsitis and radix astragali extracted pure powder is not less than 70%, and the astragaloside IV is not less than 0.15%.

6. The potassium magnesium sulfate composite crystalline slow release salt product of claim 5, wherein the total sugars are astragalus polysaccharides and codonopsis polysaccharides.

7. A method for preparing the potassium magnesium sulfate composite crystalline slow-release salt product as claimed in any one of claims 1 to 6, which is characterized by comprising the following steps:

stirring and mixing the potassium magnesium sulfate crystal salt and the carrier, then adding the carrier, stirring and mixing uniformly, finally adding the plant extract, stirring and mixing for 5-10 hours, and finally drying to obtain the potassium magnesium sulfate composite crystal slow-release salt product.