Antibiotic-free fermented feed for sows and preparation method of antibiotic-free fermented feed

By using antibiotic-free fermented feed formulation and fermentation process, the problem of intestinal microbial imbalance caused by feeding sows roughage is solved, improving feed intake and immunity in sows and piglets, and enhancing piglet survival rate and growth performance.

CN121400528APending Publication Date: 2026-01-27ANIMAL HUSBANDRY RES INST OF HEILONGJIANG ACADEMY OF AGRI SCI
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Patent Information

Application Number
CN202511609242.5
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2025-11-05
Publication Date
2026-01-27

AI Technical Summary

Technical Problem

Feeding sows untreated roughage disrupts the balance of gut microbiota, leads to insufficient feed intake, affects milk production, and consequently reduces piglet survival rate and growth performance.

Method used

An antibiotic-free fermented feed formula is used, which includes corn, wheat, wheat bran, soybean meal, dicalcium phosphate, sodium chloride, soybean oil, lysine, threonine, premix, and compound traditional Chinese medicine. The fermented feed is rich in probiotics and improves the balance of intestinal microbiota through fermentation with lactic acid bacteria, yeast, and Bacillus subtilis.

Benefits of technology

It can increase feed intake in sows and piglets, enhance sow immunity, maintain intestinal flora balance, increase milk production, improve piglet survival rate and growth performance, and at the same time avoid the negative effects of antibiotics on the intestines.

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Abstract

The invention provides an antibiotic-free fermented feed for sows and a preparation method thereof, and relates to the technical field of feeds for sows, the antibiotic-free fermented feed for sows and the preparation method thereof comprise 30-35% of corn, 26-28% of wheat, 10-15% of bran and 12-15% of soybean meal. The feed is prepared from the following raw materials in percentage by weight: 0.5-1% of calcium phosphate, 0.5-1% of calcium hydrophosphate, 0.2-0.5% of sodium chloride, 1-2% of soybean oil, 0.2-0.5% of lysine, 0.1-0.3% of threonine, 1-2% of premix and 0.6-1.2% of compound Chinese herbal medicine through a fermentation process. The fermented feed is free of antibiotics, avoids the situation that the balance of animal intestinal microorganisms is damaged by abuse of antibiotics, is good in palatability and high in nutrient substance utilization rate, can improve the intestinal microflora, can increase the feed intake of lactating sows and piglets, reduces the number of escherichia coli in fecal microorganisms, increases the number of probiotics, and further has the effects of improving the yield of the lactating sows and the piglets. And the added composite Chinese herbal medicine agent can enhance the immunity of the sows and improve the defense resistance of the body when the sows eat the feed, which means that the sows have better disease resistance.
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Description

Technical Field

[0001] This invention relates to the field of sow feed technology, specifically to an antibiotic-free fermented feed for sows and its preparation method. Background Technology

[0002] Fermented feed is feed made from roughage through microbial fermentation. This process enriches roughage with crude fiber and protein, such as cellulose, hemicellulose, pectin, and lignin. However, these components are difficult for animals to digest and absorb directly, which can increase the burden on their intestines and cause intestinal diseases. Fermentation transforms feed ingredients into a single biological fermented feed that integrates microbial cell protein, bioactive small peptide amino acids, microbial active probiotics, and compound enzyme preparations. This not only compensates for the amino acids that are easily lacking in conventional feeds but also enables the rapid conversion of nutrients from other roughage ingredients, thereby enhancing digestibility and absorption.

[0003] Therefore, the frequent use of untreated roughage by sows can lead to sub-health and reproductive disorders, which in turn disrupts the balance of their intestinal microbiota, causing dysbiosis and directly affecting the economic benefits of pig farming. Since sow's milk is the main source of nutrition for suckling piglets, there is a significant negative correlation between feed intake and weight loss during lactation. Reduced feed intake leads to insufficient milk production, which in turn affects the survival rate and growth performance of piglets. To address this, we provide an antibiotic-free fermented feed for sows and its preparation method. Summary of the Invention

[0004] (a) Technical problems to be solved

[0005] To address the shortcomings of existing technologies, this invention provides an antibiotic-free fermented feed for sows and its preparation method, which solves the problem of the disruption of intestinal microbial balance caused by feeding sows roughage, resulting in insufficient milk production and reduced piglet survival rates due to insufficient feed intake.

[0006] (II) Technical Solution

[0007] To achieve the above objectives, the present invention provides the following technical solution: an antibiotic-free fermented feed for sows, which is made from the following raw materials in the indicated weight ratios through a fermentation process: 30-35% corn, 26-28% wheat, 10-15% wheat bran, 12-15% soybean meal, 0.5-1% dicalcium phosphate, 0.2-0.5% sodium chloride, 1-2% soybean oil, 0.2-0.5% lysine, 0.1-0.3% threonine, 1-2% premix, and 0.6-1.2% compound traditional Chinese medicine.

[0008] Preferably, the antibiotic-free fermented feed for sows is made from the following raw materials in the indicated weight ratios through a fermentation process: 30% corn, 26% wheat, 10% wheat bran, 12% soybean meal, 0.5% dicalcium phosphate, 0.2% sodium chloride, 1% soybean oil, 0.2% lysine, 0.1% threonine, 1% premix, and 0.6% compound traditional Chinese medicine.

[0009] Preferably, the antibiotic-free fermented feed for sows is made from the following raw materials in the indicated weight ratios through a fermentation process: 32% corn, 27% wheat, 12% wheat bran, 13% soybean meal, 0.7% dicalcium phosphate, 0.3% sodium chloride, 1.5% soybean oil, 0.3% lysine, 0.2% threonine, 1.5% premix, and 0.9% compound traditional Chinese medicine preparation.

[0010] Preferably, the compound herbal preparation contains two or three of the following: plantain 3-5%, mugwort 1-2%, purslane 5-8%, and dandelion 2-3%.

[0011] Preferably, the fermentation strains used in the antibiotic-free fermented feed for sows are a mixed microbial agent consisting of lactic acid bacteria (4.97×10⁹ CFU / g), yeast (4.63×10⁹ CFU / g), and Bacillus subtilis (1.90×10¹⁰ CFU / g).

[0012] Preferably, a method for preparing antibiotic-free fermented feed for sows includes the following steps:

[0013] 1) Weigh the raw materials according to the formula of antibiotic-free fermented feed for sows, crush and sieve them, and then mix them evenly for later use. (Note: The compound Chinese herbal medicine should be dried, ground and crushed at 65℃, sieved through a 40-mesh sieve, and then mixed evenly with other raw materials for later use.)

[0014] 2) Dissolve the mixed bacterial agent in distilled water, then add glucose solution to make a sugar-containing bacterial solution for later use;

[0015] 3) Spray the sugar-containing bacterial solution evenly onto the feed raw materials that have been sterilized by ultraviolet light while mixing. Put the mixed fermented feed into the fermentation tank, compact the material, and then use a wooden stick to make holes in the fermented feed down to the bottom. Then, cover it with plastic film, seal it, and let it ferment naturally.

[0016] Preferably, the weight ratio of the feed ingredients to the sugar-containing bacterial water is 1:0.4.

[0017] Preferably, the fermentation cycle is 5-15 days at a temperature ≤25℃, and 3-5 days at a temperature >25℃.

[0018] (III) Beneficial Effects

[0019] This invention provides an antibiotic-free fermented feed for sows and its preparation method. It has the following beneficial effects:

[0020] 1. The antibiotic-free fermented feed for sows provided by this invention has the advantages of good palatability and high nutrient utilization. Its rich probiotics can improve the intestinal microbiota and maintain the balance of the intestinal flora. Feeding fermented feed can increase the feed intake of lactating sows and piglets, while reducing the number of Escherichia coli in fecal microorganisms and increasing the number of probiotics.

[0021] 2. The antibiotic-free fermented feed for sows provided by this invention does not contain antibiotics, thus avoiding the problem of antibiotic abuse disrupting the balance of animal intestinal microorganisms, affecting the animal's ability to digest nutrients and its growth performance. At the same time, it can prevent meat containing antibiotics from entering the human body through the food chain and causing unavoidable harm to the human body.

[0022] 3. The preparation method for the fermented feed provided by this invention clarifies the preparation process of the feed raw materials, clarifies the fermentation conditions of the fermented feed, ensures the smooth fermentation of the fermented feed, maximizes the release of effective components and active substances in traditional Chinese medicine, and modifies the active components of traditional Chinese medicine to produce new active substances, ensuring that more protein, reducing sugar and probiotics are produced during fermentation while effectively inhibiting the production of Escherichia coli.

[0023] 4. The compound Chinese herbal medicine added to the antibiotic-free fermented feed for sows provided by this invention can enhance the immunity of sows and improve their body's defense and resistance when they consume this feed, meaning that the sows themselves have better disease resistance. Detailed Implementation

[0024] The technical solutions in the embodiments of the present invention will be clearly and completely described below. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0025] Example 1:

[0026] This invention provides an antibiotic-free fermented feed for sows and its preparation method, comprising the following steps: the antibiotic-free fermented feed for sows is made from the following raw materials in the indicated weight ratios through a fermentation process: 30% corn, 26% wheat, 10% wheat bran, 12% soybean meal, 0.5% dicalcium phosphate, 0.2% sodium chloride, 1% soybean oil, 0.2% lysine, 0.1% threonine, 1% premix, and 0.6% compound traditional Chinese medicine (the compound traditional Chinese medicine consists of 3% plantain, 1% artemisia, and 5% purslane).

[0027] Then, weigh the raw materials according to the formula of antibiotic-free fermented feed for sows, crush and sieve them, and mix them evenly for later use (Note: the compound Chinese herbal medicine is dried and ground at 65℃, sieved through a 40-mesh sieve, and then mixed evenly with other raw materials for later use); dissolve the mixed bacterial agent of 4.97×10⁹ CFU / g lactic acid bacteria, 4.63×10⁹ CFU / g yeast, and 1.90×10¹⁰ CFU / g Bacillus subtilis in distilled water, and then add glucose solution to make sugar-containing bacterial water for later use; spray the sugar-containing bacterial water evenly on the feed raw materials after UV sterilization, with the weight ratio of feed raw materials to sugar-containing bacterial water being 1:0.4 while mixing and sprinkling, put the mixed fermented feed into the fermentation tank, compact the material, and then use a wooden stick to make holes in the fermented feed down to the bottom of the feed. Then, cover it with plastic film, seal it, and let it ferment naturally. The fermentation cycle is 5 days at 25℃ and 3 days at 30℃.

[0028] Example 2:

[0029] This antibiotic-free fermented feed for sows is made from the following raw materials in the indicated weight ratios through a fermentation process: 32% corn, 27% wheat, 12% wheat bran, 13% soybean meal, 0.7% dicalcium phosphate, 0.3% sodium chloride, 1.5% soybean oil, 0.3% lysine, 0.2% threonine, 1.5% premix, and 0.9% compound traditional Chinese medicine (5% plantain, 2% mugwort, and 3% dandelion).

[0030] Then, weigh the raw materials according to the formula of antibiotic-free fermented feed for sows, crush and sieve them, and mix them evenly for later use (Note: the compound Chinese herbal medicine is dried and ground at 65℃, sieved through a 40-mesh sieve, and then mixed evenly with other raw materials for later use); dissolve the mixed bacterial agent of 4.97×10⁹ CFU / g lactic acid bacteria, 4.63×10⁹ CFU / g yeast, and 1.90×10¹⁰ CFU / g Bacillus subtilis in distilled water, and then add glucose solution to make sugar-containing bacterial water for later use; evenly spray the sugar-containing bacterial water onto the feed raw materials that have been sterilized by ultraviolet light, with a weight ratio of feed raw materials to sugar-containing bacterial water of 1:0.4 while mixing and sprinkling, put the mixed fermented feed into the fermentation tank, compact the material, and then use a wooden stick to make holes in the fermented feed down to the bottom of the feed. Then, cover it with plastic film, seal it, and let it ferment naturally. The fermentation cycle is 10 days at 20℃ and 3 days at 30℃.

[0031] Example 3:

[0032] This antibiotic-free fermented feed for sows is made from the following raw materials in the indicated weight ratios through a fermentation process: 35% corn, 28% wheat, 5% wheat bran, 15% soybean meal, 1% dicalcium phosphate, 0.5% sodium chloride, 2% soybean oil, 0.5% lysine, 0.3% threonine, 2% premix, and 1.2% compound traditional Chinese medicine (5% plantain, 8% purslane, and 3% dandelion).

[0033] Then, weigh the raw materials according to the formula of antibiotic-free fermented feed for sows, crush and sieve them, and mix them evenly for later use (Note: the compound Chinese herbal medicine is dried and ground at 65℃, sieved through a 40-mesh sieve, and then mixed evenly with other raw materials for later use); dissolve the mixed bacterial agent of 4.97×10⁹ CFU / g lactic acid bacteria, 4.63×10⁹ CFU / g yeast, and 1.90×10¹⁰ CFU / g Bacillus subtilis in distilled water, and then add glucose solution to make sugar-containing bacterial water for later use; evenly spray the sugar-containing bacterial water onto the feed raw materials that have been sterilized by ultraviolet light, with a weight ratio of feed raw materials to sugar-containing bacterial water of 1:0.4 while mixing and sprinkling, put the mixed fermented feed into the fermentation tank, compact the material, and then use a wooden stick to make holes in the fermented feed down to the bottom of the feed. Then, cover it with plastic film, seal it, and let it ferment naturally. The fermentation cycle is 15 days at 15℃ and 3 days at 30℃.

[0034] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising a reference structure" does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0035] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. An antibiotic-free fermented feed for sows, characterized in that: This antibiotic-free fermented feed for sows is made from the following raw materials in the indicated weight ratios through a fermentation process: 30-35% corn, 26-28% wheat, 10-15% wheat bran, 12-15% soybean meal, 0.5-1% dicalcium phosphate, 0.2-0.5% sodium chloride, 1-2% soybean oil, 0.2-0.5% lysine, 0.1-0.3% threonine, 1-2% premix, and 0.6-1.2% compound traditional Chinese medicine.

2. The antibiotic-free fermented feed for sows according to claim 1, characterized in that: This antibiotic-free fermented feed for sows is made from the following raw materials in the indicated weight ratios through a fermentation process: 30% corn, 26% wheat, 10% wheat bran, 12% soybean meal, 0.5% dicalcium phosphate, 0.2% sodium chloride, 1% soybean oil, 0.2% lysine, 0.1% threonine, 1% premix, and 0.6% compound traditional Chinese medicine.

3. The antibiotic-free fermented feed for sows according to claim 1, characterized in that: This antibiotic-free fermented feed for sows is made from the following raw materials in the indicated weight ratios through a fermentation process: 32% corn, 27% wheat, 12% wheat bran, 13% soybean meal, 0.7% dicalcium phosphate, 0.3% sodium chloride, 1.5% soybean oil, 0.3% lysine, 0.2% threonine, 1.5% premix, and 0.9% compound traditional Chinese medicine.

4. The antibiotic-free fermented feed for sows according to claim 1, characterized in that: The compound herbal preparation consists of two or three of the following: plantain 3-5%, mugwort 1-2%, purslane 5-8%, and dandelion 2-3%.

5. The antibiotic-free fermented feed for sows according to claim 1, characterized in that: The fermentation strains used in the antibiotic-free fermented feed for sows are a mixed agent of lactic acid bacteria (4.97×10⁹ CFU / g), yeast (4.63×10⁹ CFU / g), and Bacillus subtilis (1.90×10¹⁰ CFU / g).

6. A method for preparing antibiotic-free fermented feed for sows, characterized in that: Includes the following steps: 1) Weigh the raw materials according to the formula of antibiotic-free fermented feed for sows, crush and sieve them, and then mix them evenly for later use. (Note: The compound Chinese herbal medicine should be dried, ground and crushed at 65℃, sieved through a 40-mesh sieve, and then mixed evenly with other raw materials for later use.) 2) Dissolve the mixed bacterial agent in distilled water, then add glucose solution to make a sugar-containing bacterial solution for later use; 3) Spray the sugar-containing bacterial solution evenly onto the feed raw materials that have been sterilized by ultraviolet light while mixing. Put the mixed fermented feed into the fermentation tank, compact the material, and then use a wooden stick to make holes in the fermented feed down to the bottom. Then, cover it with plastic film, seal it, and let it ferment naturally.

7. The method for preparing an antibiotic-free fermented feed for sows according to claim 6, characterized in that: The weight ratio of the feed ingredients to the sugar-containing bacterial water is 1:0.

4.

8. The method for preparing an antibiotic-free fermented feed for sows according to claim 6, characterized in that: The fermentation cycle is 5-15 days at temperatures ≤25℃ and 3-5 days at temperatures >25℃.