CN112617033A

CN112617033A - Feed for improving intestinal health of weaned piglets and preparation method thereof

Info

Publication number: CN112617033A
Application number: CN202011463261.9A
Authority: CN
Inventors: 何伟先; 佘宁
Original assignee: Qiquan Nongmu Group Ltd
Current assignee: Qiquan Nongmu Group Ltd
Priority date: 2020-12-14
Filing date: 2020-12-14
Publication date: 2021-04-09

Abstract

The invention provides a feed for improving intestinal health of weaned pigs and a preparation method thereof. The preparation method comprises the following steps: uniformly mixing the Nuobida, the macleaya cordata powder, the compound vitamins for pigs, the organic trace element compound package, the lysine, the piglet compound enzyme, the coated zinc oxide and the antioxidant to obtain a premixed feed additive; uniformly mixing corn, wheat flour, puffed soybean meal, fermented soybean meal, enzymatic soybean meal, puffed soybean, fish meal, white sugar, whole milk powder, dietary fiber, an acidifier, coconut oil powder, choline chloride, calcium formate, calcium dihydrogen phosphate and a premixed feed additive to obtain the feed. The feed comprises the feed prepared by the method. The piglet feed can reduce the gastrointestinal tract stress response of piglets, reduce the occurrence of weaning diarrhea of the piglets, has comprehensive and high content of nutrition in the piglet feed, is fast in absorption and transformation, and can reduce the gastrointestinal digestion burden of the piglets, improve the immunity of the piglets and improve the growth speed and the survival rate of the piglets.

Description

Feed for improving intestinal health of weaned piglets and preparation method thereof

Technical Field

The invention relates to the technical field of animal husbandry, and particularly relates to a feed for improving intestinal health of weaned piglets and a preparation method thereof.

Background

In order to realize high production efficiency of modern pig raising production, the technology of early weaning piglets is more and more widely applied, but how to reduce stress caused by weaning and reduce the death rate of weaned piglets which are converted from mother milk to solid feed becomes the key for realizing high-efficiency production of live pigs. According to estimation, the number of dead piglets per year of weaned piglets in China exceeds 4000 million due to diarrhea, the economic loss reaches 600 hundred million yuan, the PSY of sows in China is reduced by at least 1 due to the phenomenon, the average PSY of sows in a national pig farm is about 18, and the average PSY of some European countries reaches 30-32. The death of the piglets after weaning is mainly caused by intestinal diseases, the digestive tract of the piglets is greatly stressed when the liquid milk is changed into the solid feed during the weaning period of the piglets, and the solid feed contains natural anti-nutritional factors, non-starch polysaccharides and the like, so that environmental differences are caused by group transfer, and gastrointestinal microecological flora is directly disturbed to cause diarrhea. Before 7, 1 and 7 months in 2020, the industry mostly adopts the combined use of antibiotics, and high dosage of zinc oxide is superposed to solve the problem, according to the requirements of industry management regulations, after 7, 1 and 2020, resistance and zinc reduction are forbidden for all livestock and poultry feeds, how to feed weaned piglets in a new situation reduces the gastrointestinal tract stress response of the weaned piglets to reduce weaning diarrhea, and the research of high-efficiency absorption and conversion of nutrition and improvement of nutrition immunity in piglet feeds has important economic significance for improving the growth speed and the survival rate of the weaned piglets.

Disclosure of Invention

In view of the deficiencies in the prior art, it is an object of the present invention to address one or more of the problems in the prior art as set forth above. For example, it is an object of the present invention to provide a method for improving the intestinal health of weaned piglets.

In order to achieve the above objects, the present invention provides, in one aspect, a feed for improving intestinal health of weaned piglets.

The feed comprises the following components in parts by weight: 400-500 parts of corn, 50-100 parts of wheat flour, 60-80 parts of puffed soybean meal, 40-50 parts of fermented soybean meal, 50-75 parts of enzymolysis soybean meal, 60-100 parts of puffed soybean, 30-50 parts of fish meal, 20-40 parts of white sugar, 25-50 parts of whole milk powder, 5-10 parts of dietary fiber, 5-10 parts of an acidifier, 20-30 parts of coconut oil powder, 0.5-1 part of choline chloride, 5-8 parts of calcium formate and 7-10 parts of monocalcium phosphate.

In one or more exemplary embodiments of the feed for improving intestinal health of weaned piglets according to the present invention, the feed may further include 8 to 12 parts by weight of a premix feed additive, and the premix feed additive may include: the mass ratio is 2-4: 3-5: 3-4: 8-10: 30-50: 8-10: 15-20: 2-3 of nobinda, macleaya cordata powder, compound vitamins for pigs, organic trace element compound bags, lysine, piglet compound enzymes, coated zinc oxide and antioxidants.

In one or more exemplary embodiments of the feed for improving intestinal health of weaned piglets according to the present invention, the coated zinc oxide can be a backbone-coated zinc oxide.

In one or more exemplary embodiments of the feed for improving intestinal health of weaned piglets, the organic trace element composite package can comprise a mixture of 3-5: 50-55: 25-35: 12-18 parts of copper glycine, iron glycine, zinc glycine and manganese glycine.

In one or more exemplary embodiments of the feed for improving intestinal health of weaned pigs, the acidulant can comprise a mixture of 0.8-1.2: 0.8 to 1.2 of benzoic acid and fumaric acid.

The invention also provides a preparation method of the feed for improving the intestinal health of the weaned pigs.

The preparation method can comprise the following steps: and (2) mixing the following components in a mass ratio of: 3-5: 3-4: 8-10: 30-50: 8-10: 15-20: 2-3 of norbida, macleaya cordata powder, compound vitamins for pigs, organic trace element compound bags, lysine, piglet compound enzymes, coated zinc oxide and an antioxidant are uniformly mixed to obtain a premixed feed additive; according to the weight parts, 400-500 parts of corn, 50-100 parts of wheat flour, 60-80 parts of expanded soybean meal, 40-50 parts of fermented soybean meal, 50-75 parts of enzymolysis soybean meal, 60-100 parts of expanded soybean, 30-50 parts of fish meal, 20-40 parts of white sugar, 25-50 parts of whole milk powder, 5-10 parts of dietary fiber, 5-10 parts of an acidifier, 20-30 parts of coconut oil powder, 0.5-1 part of choline chloride, 5-8 parts of calcium formate, 7-10 parts of monocalcium phosphate and 8-12 parts of a premixed feed additive are uniformly mixed to obtain the feed.

In one or more exemplary embodiments of the present methods of preparing a feed for improving gut health of weaned piglets, the method may further comprise the steps of: the obtained feed is steam-conditioned and then pressed into pellets.

In one or more exemplary embodiments of the method for preparing the feed for improving the intestinal health of the weaned piglets, the steam modulation can comprise steam modulation at 70-90 ℃, and the starch gelatinized modulation material can be obtained after the steam modulation.

In one or more exemplary embodiments of the method for preparing the feed for improving the intestinal health of weaned pigs, the grain size of the feed after being pressed into granules can be 2-4 mm, for example 3 mm.

In one or more exemplary embodiments of the method for preparing the feed for improving the intestinal health of weaned piglets, the organic trace element composite package can comprise the following components in a mass ratio of 3-5: 50-55: 25-35: 12-18 parts of copper glycine, iron glycine, zinc glycine and manganese glycine.

In one or more exemplary embodiments of the method for preparing a feed for improving intestinal health of weaned piglets according to the present invention, the coated zinc oxide may be skeleton-coated zinc oxide.

In one or more exemplary embodiments of the method for preparing the feed for improving intestinal health of weaned piglets, the acidulant may comprise a mixture of 0.8-1.2: 0.8 to 1.2 of benzoic acid and fumaric acid.

In one or more exemplary embodiments of the method for preparing a feed for improving intestinal health of weaned piglets according to the present invention, the piglet complex enzyme may be rich in xylanase, protease, alpha-amylase, beta-glucanase, pectinase.

Compared with the prior art, the beneficial effects of the invention can include: the piglet feed can reduce gastrointestinal tract stress reaction of piglets, reduce the occurrence of piglet weaning diarrhea, has comprehensive and high content of nutrition in the piglet feed, is fast in absorption and transformation, and can reduce the gastrointestinal digestion burden of piglets, improve the immunity of piglets and improve the growth speed and the survival rate of piglets.

Detailed Description

Hereinafter, the feed for improving intestinal health of weaned piglets and the preparation method thereof according to the present invention will be described in detail with reference to the exemplary embodiments.

The invention provides a feed for improving the intestinal health of weaned pigs.

In an exemplary embodiment of the feed of the invention for improving gut health of weaned piglets, the following components may be included per kg of feed:

400-500 g/kg of corn, 50-100 g/kg of wheat flour, 60-80 g/kg of expanded soybean meal, 40-50 g/kg of fermented soybean meal, 50-75 g/kg of enzymolysis soybean meal (such as HP300), 60-100 g/kg of expanded soybean, 30-50 g/kg of fish meal, 20-40 g/kg of white sugar, 25-50 g/kg of whole milk powder, 5-10 g/kg of dietary fiber, 5-10 g/kg of acidifier, 20-30 g/kg of coconut oil powder, 0.5-1 g/kg of choline chloride, 5-8 g/kg of calcium formate, 7-10 g/kg of monocalcium phosphate and 0.8-1.2% of premixed feed additive, namely 8-12 g/kg of premixed feed additive.

Wherein, the premixed feed additive comprises the following components in percentage by weight:

2-4% of norbiddata (oregano phenol), 3-5% of macleaya cordata powder, 3-4% of composite vitamins for pigs, 8-10% of organic trace element composite package, 30-50% of lysine, 8-10% of TP100 (piglet composite enzyme), 15-20% of coated zinc oxide and 2-3% of antioxidant.

In this embodiment, the whole milk powder may include whole milk powder, whey powder, or the like; the acidulant may comprise benzoic acid and fumaric acid, for example in a mass ratio of 1: 1 benzoic acid and fumaric acid.

In this embodiment, the organic trace element composite package may include copper glycine, iron glycine, zinc glycine, and manganese glycine.

In this example, HP300 was able to reduce the amount of indigestible oligosaccharides in the gut, limiting the amount of oligosaccharides that could be utilized by fermentation by pathogenic bacteria, which produce gases harmful to the pig and which would lead to intestinal disease in the pig by increasing the proliferation of the bacteria.

The content of stachyose, raffinose, trypsin inhibitor and beta-conglycinin in PH300 is far lower than that of corresponding substances in soybean meal. For example, stachyose in pH300 may be present in an amount of 0.4%, raffinose in an amount of 0.1%, trypsin inhibitor in an amount of 2.3mg/kg, beta-conglycinin in an amount of 1mg/kg, and stachyose in soybean meal in an amount of 4.2%, raffinose in an amount of 1.3%, trypsin inhibitor in an amount of 5.9mg/kg, and beta-conglycinin in an amount of 49 mg/kg.

The use amount of the soybean meal can be reduced by adding PH300, the content of antinutritional factors in the feed can be greatly reduced, and the harm of the antinutritional factors to the intestinal health of piglets is reduced.

In this example, the main ingredients of coconut oil fat powder (also known as coconut oil powder): lauric acid, the content of which is 45 to 51 percent (mass percentage). The sow milk also contains a large amount of lauric acid. The coconut oil powder is rich in medium-chain fatty acids and short-chain fatty acids, has smaller molecular weight than long-chain fatty acids of other grease, is easy to digest and absorb by piglets, does not need a pancreas digestive enzyme system for digesting the coconut oil, has smaller pressure on enzyme and liver, further promotes the health of the piglets and improves the metabolism efficiency.

Coconut oil is the most ideal energy source for piglets, is easy to digest and absorb, can quickly function as young piglets compared with other vegetable oil, avoids the body condition from being reduced, can reduce the digestion burden, reduces the occurrence of intestinal diseases, and can play a role in transition from sow milk to feed.

In the embodiment, the whole milk powder can provide lactose for intestinal lactic acid bacteria to generate lactic acid, reduce the pH value, inhibit the growth of pathogenic bacteria and maintain the intestinal health of piglets; the whole milk powder has no antigen factor, good digestion and absorption, and is rich in immunoglobulin, and can improve immunity of piglets.

In the embodiment, the whole milk powder, the white sugar and the coconut oil powder are reasonably matched, and the physiological characteristics of the piglets on the energy requirement are combined, so that a reasonable energy gradient is provided, and the piglets can better digest and absorb the feed nutrients.

In the embodiment, the calcium content in the potassium calcium acid is 30.4%, the utilization rate of piglets is high, the pH value is neutral, the water content is low, the water solubility is good and neutral, vitamins in the feed cannot be lost, free formic acid is separated out under gastric acid, the pH value of stomach is reduced, and the immunocompetence of the piglets is improved. Compared with calcium carbonate, calcium carbonate is strong in alkalinity, has large irritation to stomach, consumes a large amount of gastric acid, influences low absorption and utilization rate of feed nutrition, has high heavy metal content in calcium carbonate, and influences health of piglets.

In this example, the stability value in 2 hours in artificial gastric juice at pH 1 is about 1.5, normal zinc oxide is about 6.0, the influence of skeleton-coated zinc oxide on gastric acid is small, and the influence of normal zinc oxide on gastric acid is large. 30-50 nanometers of skeleton coated zinc oxide, 25-50 microns of common zinc oxide, 5 times of surface area of common zinc oxide, about 2 times of antibacterial effect, 4.8 percent of stomach loss of the skeleton coated zinc oxide, 69.5 percent of stomach loss of the common zinc oxide, and the same concentration of intestinal zinc oxide molecules, 540 grams of the skeleton coated zinc oxide is equal to 1000 grams of the common zinc oxide. When the same effect is achieved, the invention can reduce the emission of 45% of heavy metal zinc.

In this embodiment, the fermented soybean meal produces a large amount of organic acids during the fermentation process, and contains a large amount of beneficial live bacteria such as lactic acid bacteria, yeast and the like; after the feed raw materials are fermented, some macromolecular proteins are decomposed into small molecular proteins and oligosaccharides which are easy to digest and absorb, and digestive enzyme, small peptides and B vitamins are generated; reducing anti-nutritional factors in the soybean meal and improving the digestibility of the feed.

The fermented soybean meal can improve the feed intake; maintaining the stomach and intestine; preventing diseases and reducing drug input; the feed quality is improved, and the feed conversion rate is increased; reducing the emission of ammonia gas and optimizing the culture environment.

In this embodiment, the organic trace element composite package may include copper glycinate, iron glycinate, zinc glycinate, manganese glycinate.

If inorganic trace elements are used in the feed, a large amount of sulfate radicals are brought in, wherein the amount of sulfate radicals in each ton of feed reaches 877 g, the amount is 1270 g in terms of sodium sulfate, and the feed intake of piglets is reduced. The organic trace elements reach the same titer and have the effects of small addition amount, good bioavailability, small environmental pollution, small damage to vitamins, small oxidative stress to piglets and the like.

In this embodiment, the norbiddata (oregano phenol) has antibacterial, antioxidant, intestinal health improving, and growth promoting effects.

The Nuobida (origanol) is extracted from a pure natural plant origanum vulgare (anti-dysentery grass), is pure natural plant essential oil, contains 60-70 phenolic active substances, and a plurality of phenolic substances are synergistically added to directly act on cell membranes and combine with ergosterol on the cell membranes to change the permeability of the cell membranes, so that small molecules and ions (such as potassium ions and sodium ions) in cells are caused to permeate outwards; as their concentration increases, some of the macromolecules also extravasate, causing irreversible loss of intracellular components, leading to bacterial death.

In the embodiment, the macleaya cordata powder has the effects of resisting bacteria, diminishing inflammation, stimulating appetite and promoting growth.

The macleaya cordata powder can reduce the occurrence of inflammation of an organism, reduce energy loss caused by inflammation and improve the net energy of feed production; a large amount of free radicals generated by an organism are eliminated, the oxidative damage of the organism is reduced, the repair of epithelial cells of an intestinal tract is accelerated, and the integrity of intestinal tract tissues is maintained; inhibiting the propagation of pathogenic bacteria, preventing bacterial enteritis and diarrhea and ensuring the health of piglet groups.

In this example, TP100 is rich in xylanase, protease, alpha-amylase, beta-glucanase, pectinase. During the piglet nursing period, digestive enzymes secreted by intestinal tracts are seriously insufficient and are not suitable for digesting solid nutrients, and the nutrient absorption capacity is reduced due to the change of intestinal villi before and after the piglet is weaned; the feed raw materials of corn and soybean meal inevitably contain substances which cannot be digested by piglets, such as crude fiber, beta-glucan, pectin and the like, and the substances increase the viscosity of intestinal contents in intestinal tracts of the piglets, stimulate epithelial cells of the intestinal tracts, form inflammatory factors and harm the health of the intestinal tracts. Xylanase, alpha-amylase and beta-glucosaccharase in TP100 are specially used for aiming at adverse factors in the feed to reduce the harm, and pectinase and protease in TP100 can improve the digestibility of soybean meal in the feed.

In the embodiment, the dietary fiber is rich in soluble fiber and insoluble fiber, does not contain mycotoxin, is easy to absorb water and ferment, has an expansion coefficient of 8 times, and can reduce the digestion pressure of intestinal tracts of piglets, improve the digestion of feed nutrients and reduce the harm of excessive nutrient fermentation at the rear end of the intestinal tracts to the health of the piglets.

In another exemplary embodiment of the feed for improving intestinal health of weaned pigs, the feed is prepared from the following raw materials in parts by weight:

400-500 parts of corn, such as 410, 450, 49 parts;

50-100 parts of wheat flour, such as 60, 80 and 95 parts;

60-80 parts of expanded soybean meal, such as 65, 70 and 75 parts;

40-50 parts of fermented soybean meal, such as 42, 45 and 49 parts;

50-75 parts of enzymolysis soybean meal, such as 55, 65 and 70 parts;

60-100 parts of puffed soybeans, such as 65, 85, 90 and 95 parts;

30-50 parts of fish meal, such as 35, 40 and 45 parts;

20-40 parts of white sugar, such as 25, 30 and 35 parts;

25-50 parts of whole milk powder, such as 30, 35, 40 and 48 parts;

5-10 parts of dietary fiber, such as 6, 7, 8 and 9 parts;

5-10 parts of an acidifying agent, for example 6, 7, 9 parts;

20-30 parts of coconut oil powder, such as 21, 23, 26 and 29 parts;

0.5-1 parts of choline chloride, such as 0.6, 0.7, 0.8, 0.9 parts;

5-8 parts of calcium formate, such as 6, 6.5 and 7.5 parts;

7-10 parts of monocalcium phosphate, such as 7.5, 8, 9 and 9.5 parts;

8-12 parts of premixed feed additive, such as 9, 10, 11 parts and the like.

In this embodiment, the premix feed additive may be prepared from the following raw materials in parts by weight:

2-4 parts of norbiddant, such as 2.5, 3, 3.5 parts;

3-5 parts of macleaya cordata powder, such as 3.5, 4 and 4.5 parts;

3-4 parts of pig multivitamin, such as 3.2, 3.5 and 3.8 parts;

8-10 parts of organic trace element compound package, such as 8.2, 9, 9.5 and 9.8 parts;

30-50 parts of lysine, such as 32, 35, 45 and 48 parts;

8-10 parts of piglet compound enzyme, such as 8.2, 9, 9.5 and 9.8 parts;

15-20 parts of coated zinc oxide, such as 16, 17, 18 and 19 parts of coated zinc oxide, wherein the coated zinc oxide can be framework coated zinc oxide;

2-3 parts of antioxidant, such as 2.2, 2.5 and 2.8 parts.

The weight parts in the premixed feed additive are only used to indicate the mass ratio of each raw material in the premixed feed additive, and are not related to the weight parts in other places, for example, the weight parts in the feed raw materials.

The kinds of raw materials in the present exemplary embodiment may be the same as those in the previous exemplary embodiment.

On the other hand, the invention provides a preparation method of the feed for improving the intestinal health of weaned pigs.

In one exemplary embodiment of the method for preparing the feed for improving intestinal health of weaned piglets according to the present invention, the method comprises: the raw materials are uniformly mixed to obtain the feed.

In another exemplary embodiment of the method for preparing a feed for improving intestinal health of weaned piglets according to the present invention, the method may comprise:

(1) various raw materials in the 1% premixed feed additive are mixed to prepare the 1% premixed feed additive for standby.

(2) Mixing puffed semen Maydis, soybean meal, fermented soybean meal, puffed semen glycines, fish powder, dietary fiber, white sugar, whey powder, acidifier (benzoic acid and fumaric acid), oleum Cocois powder, choline chloride, calcium formate, calcium dihydrogen phosphate, and 1% premix at a certain proportion.

Wherein the raw materials in the preparation steps (1) and (2) may be the same as those in the above exemplary embodiment for improving the intestinal health of weaned piglets.

Further, the method may further comprise the steps of: and (3) performing steam modulation on the obtained feed at 70-90 ℃, and then pressing into granules.

In order that the above-described exemplary embodiments of the invention may be better understood, further description thereof with reference to specific examples is provided below.

Example 1

Preparing an experimental group feed, namely preparing the feed for improving the intestinal health of the weaned piglets, wherein the feed is prepared from the following raw materials in parts by weight: 45 parts of corn, 10 parts of wheat flour, 4 parts of fish meal, 3006 parts of HP, 10 parts of puffed soybean meal, 5 parts of fermented soybean meal, 10 parts of puffed soybean, 2.5 parts of whole milk, 2 parts of white sugar, 3 parts of coconut oil powder, 0.1 part of choline chloride, 1 part of dietary fiber, 0.5 part of calcium formate, 1 part of monocalcium phosphate, 0.9 part of compound premix, 0.3 part of benzoic acid and 0.3 part of fumaric acid. Wherein the compound premix comprises the following components in a mass ratio of 2: 3.5: 3.2: 9: 4: 9: 17: 2.4 of Nuobida, macleaya cordata powder, compound vitamins for pigs, organic trace element compound packages, lysine, piglet compound enzymes, skeleton coated zinc oxide and antioxidants, wherein the organic trace element compound packages comprise, by mass, 4: 52: 29: 15 copper glycinate, iron glycinate, zinc glycinate and manganese glycinate.

The conventional piglet feed required by a control group is prepared from the following raw materials in parts by weight: 55 parts of corn, 23 parts of expanded soybean meal, 5 parts of expanded soybean, 3.7 parts of wheat middling, 4 parts of fish meal, 2.5 parts of whey powder, 2 parts of white sugar, 2 parts of soybean oil, 0.8 part of calcium carbonate, 1 part of calcium hydrophosphate and 1 part of compound premix.

The preparation method of the two feeds comprises the following steps:

(1) the raw materials are uniformly mixed by a mixer.

(2) The mixture is conditioned by a conditioner with steam at 80-85 ℃.

(3) The diameter of the hole is 3.0, and the compression ratio of the ring die is 4: 1, granulating.

(4) And (6) cooling.

In a Sichuan Jinlv farming and pasturing No. 3 field, 100 piglets, 2 columns of daily ration for an experimental group and a control group are counted, wherein the piglets of the experimental group eat the experimental group feed prepared by the invention, and the piglets of the control group eat the conventional piglet feed; the piglets are all 30 days old and are all 7.5 kg in weight. The results of the application are shown in Table 1.

TABLE 1

As can be seen from Table 1, the feed of the present invention is beneficial for improving intestinal health of piglets. After the experimental piglet eats the feed, the average diarrhea rate is obvious, the excrement forming degree is obviously improved, the intestinal villus height is obviously increased, the intestinal crypt depth is obviously reduced, the intestinal villus height is longer, the intestinal crypt depth is shallower, the nutrition absorption is more facilitated, and the intestinal tract more meets the physiological health requirements of the piglet.

Example 2

Preparing an experimental group feed, namely preparing the feed for improving the intestinal health of the weaned piglets, wherein the feed is prepared from the following raw materials in parts by weight: 47 parts of corn, 8 parts of wheat flour, 4 parts of fish meal, 3005 parts of HP, 10 parts of puffed soybean meal, 6 parts of fermented soybean meal, 10 parts of puffed soybean, 3 parts of whole milk powder, 2 parts of white sugar, 3 parts of coconut oil powder, 0.1 part of choline chloride, 0.5 part of dietary fiber, 0.5 part of calcium formate, 1 part of monocalcium phosphate, 0.9 part of compound premix, 0.4 part of benzoic acid and 0.4 part of fumaric acid. Wherein, the compound premix comprises 3: 4.5: 3.7: 8.5: 45: 8.5: 18: 2.6 of Nuobida, macleaya cordata powder, compound vitamins for pigs, an organic trace element compound package, lysine, piglet compound enzymes, skeleton coated zinc oxide and an antioxidant, wherein the organic trace element compound package comprises the following components in a mass ratio of 4.2: 53: 31: 14 copper glycinate, iron glycinate, zinc glycinate and manganese glycinate.

The conventional piglet feed required by a control group is prepared from the following raw materials in parts by weight: 54 parts of corn, 22 parts of expanded soybean meal, 5 parts of expanded soybean, 3.5 parts of wheat middling, 3.8 parts of fish meal, 2.6 parts of whey powder, 2.1 parts of white sugar, 2.1 parts of soybean oil, 0.9 part of calcium carbonate, 0.95 part of calcium hydrophosphate and 1 part of compound premix.

The preparation method of the two feeds specifically comprises the following steps:

(1) the raw materials are uniformly mixed by a mixer.

(2) The mixture is conditioned by a conditioner with steam at 80-85 ℃.

(4) And (6) cooling.

The feed for the experimental group prepared by the invention is eaten by the piglets of the experimental group, and the control group eats the conventional piglet feed; the piglets are all 30 days old and are all 7.4 kg in weight. The results of the application are shown in Table 2.

TABLE 2

As can be seen from Table 2, the feed of the present invention is beneficial to improving intestinal health of piglets. After the experimental piglet eats the feed, the average diarrhea rate is obvious, the excrement forming degree is obviously improved, the intestinal villus height is obviously increased, the intestinal crypt depth is obviously reduced, the intestinal villus height is longer, the intestinal crypt depth is shallower, the nutrition absorption is more facilitated, and the intestinal tract more meets the physiological health requirements of the piglet.

In summary, the advantages of the feed for improving intestinal health of weaned piglets and the preparation method thereof according to the present invention may include at least one of the following:

(1) the probability of intestinal diseases of piglets is reduced;

(2) the intestinal villus height of the piglets is increased, and the intestinal crypt depth is reduced;

(3) the feed is easy to digest and absorb, so that the digestion burden of piglets is reduced;

(4) inhibiting the growth of pathogenic bacteria, improving the immunity of piglets, preventing diseases and reducing the treatment cost;

(5) improving the micro-ecological environment of the gastrointestinal tract of the piglet and promoting the growth;

(6) can resist bacteria, diminish inflammation and reduce inflammatory reaction of organisms;

(7) the feed intake of the piglet feed is improved, the feed quality is improved, the feed conversion rate is improved, the emission of ammonia gas is reduced, and the breeding environment is optimized;

(8) the preparation method of the feed is simple.

Although the present invention has been described above in connection with exemplary embodiments, it will be apparent to those skilled in the art that various modifications and changes may be made to the exemplary embodiments of the present invention without departing from the spirit and scope of the invention as defined in the appended claims.

Claims

1. The feed for improving the intestinal health of weaned piglets is characterized by comprising the following components in parts by weight:

400-500 parts of corn, 50-100 parts of wheat flour, 60-80 parts of puffed soybean meal, 40-50 parts of fermented soybean meal, 50-75 parts of enzymolysis soybean meal, 60-100 parts of puffed soybean, 30-50 parts of fish meal, 20-40 parts of white sugar, 25-50 parts of whole milk powder, 5-10 parts of dietary fiber, 5-10 parts of an acidifier, 20-30 parts of coconut oil powder, 0.5-1 part of choline chloride, 5-8 parts of calcium formate and 7-10 parts of monocalcium phosphate.

2. The feed for improving intestinal health of weaned pigs according to claim 1, wherein the feed further comprises 8-12 parts by weight of a premixed feed additive, the premixed feed additive comprising:

the mass ratio is 2-4: 3-5: 3-4: 8-10: 30-50: 8-10: 15-20: 2-3 of nobinda, macleaya cordata powder, compound vitamins for pigs, organic trace element compound bags, lysine, piglet compound enzymes, coated zinc oxide and antioxidants.

3. The feed for improving intestinal health of weaned pigs according to claim 2, wherein said coated zinc oxide is skeleton coated zinc oxide.

4. The feed for improving intestinal health of weaned pigs according to claim 2, wherein said organic trace element complex package comprises:

the mass ratio is 3-5: 50-55: 25-35: 12-18 parts of copper glycine, iron glycine, zinc glycine and manganese glycine.

5. The feed for improving intestinal health of weaned pigs according to claim 1, wherein the acidifier comprises the components in a mass ratio of 0.8-1.2: 0.8 to 1.2 of benzoic acid and fumaric acid.

6. The preparation method of the feed for improving the intestinal health of weaned pigs is characterized by comprising the following steps:

and (2) mixing the following components in a mass ratio of: 3-5: 3-4: 8-10: 30-50: 8-10: 15-20: 2-3 of norbida, macleaya cordata powder, compound vitamins for pigs, organic trace element compound bags, lysine, piglet compound enzymes, coated zinc oxide and an antioxidant are uniformly mixed to obtain a premixed feed additive;

according to the weight parts, 400-500 parts of corn, 50-100 parts of wheat flour, 60-80 parts of expanded soybean meal, 40-50 parts of fermented soybean meal, 50-75 parts of enzymolysis soybean meal, 60-100 parts of expanded soybean, 30-50 parts of fish meal, 20-40 parts of white sugar, 25-50 parts of whole milk powder, 5-10 parts of dietary fiber, 5-10 parts of an acidifier, 20-30 parts of coconut oil powder, 0.5-1 part of choline chloride, 5-8 parts of calcium formate, 7-10 parts of monocalcium phosphate and 8-12 parts of a premixed feed additive are uniformly mixed to obtain the feed.

7. The method of preparing a feed for improving gut health of weaned piglets according to claim 6, wherein the method further comprises the steps of: the obtained feed is steam-conditioned and then pressed into pellets.

8. The method for preparing a feed for improving intestinal health of weaned pigs according to claim 6, wherein the organic trace element compound package comprises: the mass ratio is 3-5: 50-55: 25-35: 12-18 parts of copper glycine, iron glycine, zinc glycine and manganese glycine;

the coated zinc oxide is framework coated zinc oxide.

9. The preparation method of the feed for improving intestinal health of weaned pigs according to claim 6, wherein the acidifier comprises the components with the mass ratio of 0.8-1.2: 0.8 to 1.2 of benzoic acid and fumaric acid.

10. The method for preparing feed for improving intestinal health of weaned pigs according to claim 6, wherein said compound enzyme for piglets is rich in xylanase, protease, alpha-amylase, beta-glucanase, and pectinase.