A production method for coated slow-release trace element poultry premix

Abstract

The invention discloses a method for producing a coated slow-release trace element poultry premix, and relates to the field of poultry feed premix. The method for producing the coated slow-release trace element poultry premix is ​​characterized in that: the outer gastric-soluble coating layer and the inner pellet core are 8-18:80-100 in weight ratio, and the particle size of the coated slow-release trace element premix is ​​1.700 mm (10 mesh) to 0.550 mm (30 mesh). Compared with the current trace element application technology products, the coated slow-release trace element poultry premix produced by the invention can reduce the amount of trace elements added in feed by 60% or more, thereby reducing environmental pollution. The coated slow-release trace element poultry premix is ​​a new type of poultry feed additive that is efficient, safe, environmentally friendly and green.

Description

Technical Field

[0001] The invention relates to a production method of a poultry premix coated with slow-release trace elements, and in particular to the field of poultry feed premixes or poultry feed additives. Background Art

[0002] Trace element premixes for animals are composed of various trace elements such as zinc, iron, manganese, copper, calcium, and selenium. It is a mixture of various trace mineral element compounds and carriers in a certain proportion. It is a variety of trace or trace nutrients necessary for animal growth and reproduction. Adding trace element premixes to daily animal feed can effectively maintain animal health, significantly improve animal production performance, and thus improve the economic benefits of breeding.

[0003] At present, most of the trace element premix products used in feed breeding are in powder form, and are mixed with inorganic acid salts or organic complexes and chelate products that have not been coated as the main raw materials. This kind of product has many disadvantages in actual production.

[0004] 1) Lots of fine dust: Feed production workers have been engaged in this work for a long time, and inhaling dust into the lungs can cause damage to the body; dust can pollute the production environment; sodium selenite and other dangerous goods are dangerous goods; flying dust can cause human poisoning; fine dust can cause explosions when encountering open flames, which is very dangerous if not properly managed.

[0005] 2) Poor stability: Some trace elements in the premix are easy to volatilize, such as potassium iodide, which is easy to volatilize and lose, reducing the effective iodine content in the premix. Some elements are prone to redox reactions and become ineffective. This causes unstable feed quality. For example, divalent iron salts are easily oxidized when exposed to light, air or moisture, turning into trivalent iron and becoming ineffective. These factors will reduce the actual trace element content in the feed and affect the production performance of animals.

[0006] 3) Destructive effects on vitamins: Common trace elements such as copper, iron, zinc, and manganese have destructive effects on vitamins in compound feeds, especially in high-concentration premixes where the loss is more serious. They are the main factor in the loss of vitamins. Trace elements are also catalysts for the oxidation and corruption of feed fats, which accelerate the oxidation and rancidity of unsaturated fatty acids, causing feed deterioration, and reducing the effectiveness of compound feeds, and leading to the production of poisoning, such as increased diarrhea in animals and decreased disease resistance.

[0007] 4) Impact on animal feed intake: trace elements contain high levels of sulfate, chlorine, magnesium ions, etc., and are soluble in water, and have a bitter taste, which affects the palatability of compound feed and reduces animal feed intake. Production performance declines; catalytic effects lead to the rancidity of compound feed fats and the increase of feed corruption, which can cause animals to refuse to eat.

[0008] 5) Low utilization rate: Ordinary inorganic salts are easily combined with non-degradable viscous polysaccharides and other antioxidant nutritional factors to become insoluble substances and be lost, thereby reducing the actual utilization rate of trace elements.

[0009] 6) Pollution to the environment: In order to improve the performance of animal production and avoid the loss of trace elements, feed mills and farms generally add excessive trace elements to feed. Most of the premixes cannot be effectively used by animals and are excreted from the body, causing heavy metal environmental pollution and gradually becoming a social nuisance.

[0010] 7) The organic trace minerals that are being vigorously promoted in the market are mainly organic trace minerals based on complex salt amino acids and chelated trace elements. There are also some problems in their production: (1) Lack of complete production process standards; (2) The product ingredients and compound structures are unclear, and there is a lack of theoretical basis and data support; (3) The production process is complicated and the products are unstable; (4) The production cost and price of amino acid complexes with accurate structures are high; (5) The actual use effect is unstable and the overall cost performance is low, which limits their widespread use and promotion.

[0011] Correspondingly, the coated slow-release trace element poultry premix product produced by the present invention has many advantages in actual production and application:

[0012] 1) No contact, less damage, long shelf life: The present invention adopts special coating and slow-release technology to prevent trace elements from direct contact with nutrients such as fats, vitamins, amino acids, etc. that are easily oxidized and deteriorated, and slowly disintegrates and releases in the animal's stomach, which can effectively eliminate the oxidation and damage of trace elements to their nutrients, thereby reducing the loss of unsaturated fatty acids, vitamins and other essential nutrients for animals, and protecting feed enzyme activity from damage; it can effectively extend the use period of feed, improve feed utilization, reduce feed costs, improve palatability, and increase feed intake;

[0013] 2) No irritation, no damage, good feed intake: Using special coating technology, the product is stable in neutral and weak acid and alkali aqueous solutions, and does not dissociate and release. It does not damage the digestive tract mucosa, has no adverse reactions to consumption and metabolism in the body, has good feed palatability, and increases the feed intake of animals.

[0014] 3) No loss, high absorption, low dosage: Adopt special coating engineering technology to eliminate the oxidation reaction and denaturation loss of trace element metal ions in the feed production process. Avoid precipitation and inactivation loss by anions such as phytic acid, directional release, improve absorption and utilization rate, and reduce the amount of addition to one third of the amount before coating.

[0015] 4) Fast dissolution, no gas production, and healthy stomach: The coating material used in this product dissolves quickly in gastric juice, the effective ingredients dissolve quickly and are released completely, the coating material dissolves without producing gas, there is no change in gastric acid, and the feed absorption is good.

[0016] 5) Small particles, no dust, cleaner: This product adopts a special coating process, the product is uniform particles, good fluidity, added without classification, no dust after coating, improves the production environment, avoids heavy metal pollution, and improves the hygiene standards of feed.

[0017] 6) Low dosage, less emission, more environmentally friendly: Using special coating technology, the product usage is small, it is completely absorbed by the body, and the emission of heavy metals and trace elements in the environment is reduced. Compared with before coating, it is more in line with environmental protection requirements and is suitable for product applications.

[0018] The production method of the coated slow-release trace element poultry premix of the present invention has three essential differences from other products:

[0019] 1) Good process, electronic weighing, mechanical mixing, two-time mixing and coating, uniform mixing and coating; there are standards, and they are strictly implemented in accordance with the quality standards; the product is good and the application effect is good;

[0020] 2) The coating material of the outer gastric-soluble coating layer is good, and the organic materials used are carefully selected, basically for human medical use, such as dextrin, xanthan gum, carboxymethyl cellulose, sodium alginate, polylactic acid, etc.; it has good dispersibility, disintegrates in the stomach and releases slowly.

[0021] 3) The contents of the pellet core include trace elements, such as zinc, iron, manganese, copper, and selenium, as well as essential oils for preventing enteritis: oregano oil, tamanu oil, and sea buckthorn fruit oil; essential oils for increasing feed intake: chili oil, pepper oil, and mustard oil. In addition to supplementing trace elements, it also has the effect of preventing and treating gastroenteritis, and is more effective for poultry and young livestock. The chili oil, pepper oil, and mustard oil used can greatly stimulate the sense of smell, increase feed intake, and promote the increase of biomass.

[0022] 4) The product has a special effect on poultry. It improves the quality of eggshells and yolk color; it improves the absorption and utilization rate of feed; it can significantly increase the tenderness of keto-body intermuscular fat in broilers, reduce muscle drip loss, and improve the quality of meat. Its application effect is significantly better than other coated trace element products and organic trace products that do not contain essential oils for preventing enteritis and increasing feed intake. It has the effect of 1+1 greater than 2 and 1+1+1 greater than 3, with obvious technical effects. Summary of the invention

[0023] The purpose of the present invention is to provide a method for producing a coated slow-release trace element poultry premix, which is a premix of coated slow-release trace elements with a pellet core of trace elements coated with an outer gastric-soluble coating layer. The coated slow-release trace element premix can make the distribution of various components in the trace element premix for animals more uniform, non-volatile, non-stratified, non-agglomerated, non-powdered, and non-polluting, while avoiding the destruction of nutrients in feed by trace elements, ensuring high stability, high quality, and high efficiency of feed. The addition amount of trace element premix in feed production and animal breeding is greatly reduced, which not only improves the production performance of animals, but also effectively reduces the pressure on environmental pollution.

[0024] The coated slow-release trace element premix of the present invention is composed of an outer gastric-soluble coating layer and an inner trace element premix pellet core. The weight ratio of the outer gastric-soluble coating layer to the inner pellet core is 8-18:80-100; the particle size of the trace element is 0.270 mm (50 mesh) to 0.212 (70 mesh); the particle size of the pellet core is 0.830 mm (20 mesh) to 0.380 mm (40 mesh), and the particle size of the coated slow-release trace element poultry premix is ​​0.1700 (10 mesh) to 0.550 mm (30 mesh).

[0025] The coated slow-release trace element poultry premix, the outer gastric soluble coating layer contains: dextrin 1.5-3.0%, xanthan gum 0.5-1.5%, talcum powder 1.5-3.0%, sodium carboxymethyl cellulose 1.5-3.0%, gum arabic 1.5-3.0%, sodium alginate 0.5-1.5%, polylactic acid 0.5-1.5%, polyacrylic acid 0.5-1.5%;

[0026] The coated slow-release trace element poultry premix has an inner pellet core containing: 25.0-28.0% zinc sulfate, 33.0-38.0% glycine iron, 6.0-8.0% copper sulfate, 5.0-7.0% manganese sulfate, 5.0-7.0% 1% sodium selenite, 2.0-5.0% calcium lactate; 3.5-5.7% essential oils for preventing enteritis (including 1.5-2.7% oregano oil, 1.0-1.5% taenia oil, 1.0-1.5% sea buckthorn fruit oil); 0.50-1.30% essential oils for increasing feed intake (including 0.2-0.5% chili oil, 0.2-0.5% pepper oil, 0.1-0.3% mustard oil).

[0027] The inventors have discovered and proved through a large number of scientific experiments that the preferred coated slow-release trace element premix consists of an outer gastric-soluble coating layer and an inner pellet core, the weight ratio of the outer gastric-soluble coating layer to the inner pellet core is 10:90; the particle size of the trace element is 0.250 mm (60 mesh); the particle size of the pellet core is 550 mm (30 mesh), and the particle size of the coated slow-release trace element poultry premix is ​​830 mm (20 mesh).

[0028] The inventors have discovered and proved through a large number of scientific experiments that the amount of the coated slow-release trace element poultry premix added to poultry is 300-600 g / ton, and preferably the amount of the coated slow-release trace element poultry premix added to poultry is 300 g / ton.

[0029] The inventors have discovered and proved through a large number of scientific experiments that the preferred coated sustained-release trace element poultry premix, the outer gastric-soluble coating layer contains: 1.5% dextrin, 1.0% xanthan gum, 1.5% talcum powder, 1.5% sodium carboxymethyl cellulose, 1.5% gum arabic, 1.0% sodium alginate, 1.0% polylactic acid, and 1.0% polyacrylic acid. The inventor has found and proved through a large number of scientific experiments that the preferred coated slow-release trace element poultry premix has an inner layer of pellets containing trace elements: 27.0% zinc sulfate, 37.0% glycine iron, 7.0% copper sulfate, 6.0% manganese sulfate, 5.0% sodium selenite, 4.0% calcium lactate; 3.5% essential oil for preventing enteritis: (including 1.5% oregano oil, 1.0% tamanu oil, 1.0% seabuckthorn fruit oil); 0.5% essential oil for increasing feed intake: (including 0.2% chili oil, 0.2% pepper oil, 0.1% mustard oil). The coated slow-release trace element premix of the present invention can be widely used in livestock and aquaculture such as pigs, horses, cattle, sheep, fish, shrimp, turtles, crabs, etc., and is mainly used in poultry breeding of broilers, laying hens, meat ducks, laying ducks, and swallows. The sources of trace elements used are all various trace element monomer additives for animals or humans that are permitted for use by the state, including inorganic salts, complexes, chelates, etc. of trace elements. The main sources of trace element monomers include the following trace elements and their synthetic substances, all of which are within the scope permitted by national policies.

[0030] The materials of the outer gastric-soluble coating layer for coating the sustained-release trace element premix of the present invention are all composed of natural, synthetic or semi-synthetic materials that can be dissolved in the stomach, and are all medicinal or edible coating materials. Those skilled in the art can make effective selections based on the common knowledge in the art.

[0031] Those skilled in the art can formulate the nutritional formula used in the pellet core according to the common knowledge in the art and the actual needs of the animals, select the type and amount of composite trace elements, and the general method is to crush all the various trace element monomers, weigh them according to the needs of the nutritional formula, put them into a mixer and mix them evenly to form composite trace elements. Then select essential oils for preventing enteritis (where oregano oil, tamanu oil, and seabuckthorn fruit oil are all edible and the amount is controlled to be below 3.5%) and essential oils for increasing feed intake (chili oil, pepper oil, and mustard oil are all edible and the amount is controlled to be below 0.5%). Those skilled in the art can select the best according to the common knowledge in the art.

[0032] Zinc: zinc sulfate, zinc chloride, zinc oxide, zinc acetate, zinc lactate, zinc methionine, zinc glycinate, etc.

[0033] Iron: ferrous sulfide, ferrous fumarate, ferrous chloride, ferrous acetate, ferrous lactate, ferrous glycinate, etc.

[0034] Selenium: sodium selenite, selenium methionine, yeast selenium, selenized carrageenan, sodium selenide, selenomethionine.

[0035] Copper: copper sulfate, copper phosphate, copper carbonate, copper chloride, copper chloride, copper formate, copper lysine, copper methionine, copper glycinate, yeast copper, etc.

[0036] Manganese sources: manganese oxide, manganese sulfate, manganese dioxide, manganese formate, manganese acetate, manganese lactate, manganese methionine, etc.

[0037] The auxiliary materials in the pellet core preferably include at least starch, dextrin, talcum powder, carboxymethyl cellulose, gum arabic, polyacrylic acid and the like.

[0038] Essential oils for preventing gastroenteritis: oregano oil, tamanu oil, sea buckthorn oil, etc.

[0039] Essential oils to increase food intake: pepper oil, mustard oil, etc.:

[0040] Another object of the present invention is to provide a method for preparing the coated slow-release trace element premix. The method comprises the following steps:

[0041] Step 1): Put the composite trace elements into a grinder and grind them;

[0042] Step 2): placing the outer gastric soluble coating layer (coating material) into a reaction kettle and heating it to 50-60 degrees to mix, thereby obtaining a gastric soluble coating material;

[0043] Step 3): putting the composite trace elements and enteritis prevention essential oil and food intake increase essential oil obtained in step 1) into a high-speed mixing granulator, and then adding 10-15% of water by weight of the outer gastric soluble coating layer and 2-4% of sodium carboxymethyl cellulose by weight of the outer gastric soluble coating layer, mixing, stirring, granulating, and then entering the spheronization machine for spheronization;

[0044] Step 4): put the slow-release trace element poultry premix after mixing, granulating and spheronizing in step 3) into a coating machine, spray the gastric soluble coating material obtained in step 2) for rolling coating, put it into a tunnel drying furnace and dry it to the safe moisture content of feed additives (water content 8-12%, preferably 10%);

[0045] Step 5): Put the slow-release trace element poultry premix after shaping and drying in step 4) into a three-dimensional vibration sieving machine for grading and screening, vibrating, grading, sieving, weighing and packaging. After the above steps, the coated slow-release trace element poultry premix is ​​obtained. The product of the present invention is a new type of poultry feed additive that is efficient, safe, environmentally friendly and green.

[0046] Compared with the prior art, the coated slow-release trace element premix of the present invention has the following advantages:

[0047] 1) The distribution of ingredients in the coated slow-release trace element premix is ​​more uniform and non-stratified, thus ensuring the feeding effect.

[0048] 2) Due to the coating layer, the divalent iron ions in the premix can be effectively prevented from being oxidized into trivalent iron ions and losing their nutritional value.

[0049] 3) The coating layer can prevent some volatile trace elements from volatilizing and reducing their content, which would affect the feeding effect.

[0050] 4) The appropriate particle size of the coated slow-release trace element premix and the thickness of the coating layer can ensure that the effective trace elements will not be lost or have side effects before reaching the stomach. When reaching the stomach, they can be fully absorbed and released, thereby greatly improving the utilization rate of trace elements and greatly reducing the amount of trace elements added, ensuring animal production.

[0051] 5) The coating layer can prevent some volatile trace elements from affecting the feeding effect due to the reduced volatile content. The coated slow-release trace element premix with appropriate particle size and the thickness of the coating layer can ensure that the effective trace elements reach the stomach. The premise is no loss, no loss, no side effects,

[0052] 6) On the basis of ensuring the production performance of animals, compared with the existing technology, it can increase the amount of trace elements added in unit feed, reducing 30 to 70 or more, thereby reducing the pressure on the environment, so it is a green feed additive, and effectively prevents the catalysis and oxidation of iron, copper and zinc ions on fat and vitamins, reducing the loss of vitamins and the rancidity of fats, extending the shelf life of feed, not absorbing moisture, not caking, and not changing color, so that the shelf life of trace element premixes is extended and the effect is more stable.

[0053] 7) It improves the palatability of feed, reduces the irritation of sulfate ions and metal ions on the digestive tract, and increases feed intake.

[0054] 8) No dust, safe for humans and animals, and no pollution to the environment.

[0055] 9) Reduce the amount of trace elements added to prevent excess trace elements from being excreted from the body. Cause water and soil pollution, and affect agricultural production. The cost is relatively low. Compared with amino acid chelated trace elements, the coated slow-release trace element premix of the present invention is low in price, stable in performance, and high in cost performance.

[0056] The present invention adopts a special coating and slow-release process technology, which can separate trace elements from nutrient elements such as fats, vitamins, amino acids, etc. that are easy to oxidize and deteriorate, avoid direct contact, and slowly disintegrate and release in the animal's stomach, which can effectively eliminate the oxidation of trace elements to their nutrients, thereby reducing the loss of unsaturated fatty acids, vitamins and other essential nutrient elements for animals, so that the activity of feed enzymes is not affected, and the feed service life is extended; it can effectively improve feed utilization, reduce feed costs, improve palatability, and increase feed intake; it can effectively prevent digestive tract diseases such as gastroenteritis; when applied to poultry animals, it can also significantly improve eggshell quality, improve egg yolk color, improve feed digestion and absorption utilization, increase the tenderness of keto body muscle and intramuscular fat of broilers, reduce muscle drip loss, and improve meat quality. Compared with the current trace element application technology products, the coated slow-release trace element poultry premix produced by the present invention can reduce the amount of trace elements added in the feed by 60% or more, thereby reducing environmental pollution. The coated slow-release trace element poultry premix is ​​a new type of poultry feed additive that is efficient, safe, environmentally friendly and green. DETAILED DESCRIPTION

[0057] The following is a further description of the present invention, but not a limitation of the present invention.

[0058] Example 1

[0059] The production method of coated slow-release trace element poultry premix is ​​characterized in that: the preparation method is as follows:

[0060] 1) Crushing of compound trace elements;

[0061] 2) Mixing of gastric soluble coating materials;

[0062] 3) Mixed coating of complex trace elements and gastric soluble coating materials;

[0063] 4) Granulation and drying of composite trace elements;

[0064] 5) Grading, screening, weighing and packaging of composite trace element premixes;

[0065] Put the composite trace elements in step 1) into a micronizer for crushing; put the gastric soluble coating in step 2) into a reactor for mixing; put the composite trace elements and the gastric soluble coating in step 3) into a high-speed mixing and coating machine for mixing and coating; put the composite trace elements in step 4 into a granulating and drying machine for granulation and drying; put the composite trace element premix in step 5) into a molecular vibration screen for grading, sieving, weighing and packaging; the coated slow-release trace element poultry premix obtained through the above steps is a new type of poultry feed additive that is efficient, safe, environmentally friendly and green.

[0066] The sources of raw materials, dosage and sources of organic trace elements for poultry trace element premixes are shown in Table 1:

[0067] Table 1. Formula of trace element premix for poultry

[0068]

[0069]

[0070] *: Trace elements 76-93%, essential oils for preventing enteritis 3.5-5.7%, essential oils for increasing feed intake 0.5-1.3%;

[0071] *: The inner core of the pill includes trace elements, essential oils for preventing enteritis, and essential oils for increasing food intake, with a ratio of 80 to 100.

[0072] After repeated process experiments and feeding tests, the optimal dosage formula of organic trace elements is as follows:

[0073] The inner layer of the pill core includes trace elements: 27.0% zinc sulfate, 37.0% glycine iron, 7.0% copper sulfate, 6.0% manganese sulfate, 5.0% sodium selenite, 4.0% calcium lactate; 3.5% essential oil for preventing enteritis: (including 1.5% oregano oil, 1.0% tamanu oil, 1.0% sea buckthorn fruit oil); 0.5% essential oil for increasing food intake: (including 0.2% chili oil, 0.2% pepper oil, 0.1% mustard oil), and the total weight ratio is 90.0, which is the best.

[0074] The outer gastric-soluble coating layer (coating material) includes: 1.5-3.0% dextrin, 0.5-1.5% xanthan gum, 1.5-3.0% talc, 1.5-3.0% sodium carboxymethyl cellulose, 1.5-3.0% gum arabic, 0.5-1.5% sodium alginate, 0.5-1.5% polylactic acid, and 0.5-1.5% polyacrylic acid; the proportion of the outer gastric-soluble coating layer (coating material) is 8-18%.

[0075] The weight ratio of the coating layer to the inner layer of the pellet core is 8-18:80-100%.

[0076] After repeated process experiments and feeding tests, the optimal dosage formula is as follows:

[0077] The inner layer of the pill core includes trace elements: 27.0% zinc sulfate, 37.0% glycine iron, 7.0% copper sulfate, 6.0% manganese sulfate, 5.0% sodium selenite, 4.0% calcium lactate; 3.5% essential oil for preventing enteritis: (including 1.5% oregano oil, 1.0% malus oil, 1.0% sea buckthorn fruit oil); 0.5% essential oil for increasing food intake: (including 0.2% chili oil, 0.2% pepper oil, 0.1% mustard oil), and the total weight ratio is 90.0, which is the best.

[0078] The outer gastric coating layer (coating material) includes: 1.5% dextrin, 1.0% xanthan gum, 1.5% talc, 1.5% sodium carboxymethyl cellulose, 1.5% gum arabic, 1.0% sodium alginate, 1.0% polylactic acid, and 1.0% polyacrylic acid. The total weight ratio is 10.0, which is the best.

[0079] The optimal weight ratio of the coating layer to the inner layer of the pellet core is 10.0:90.0.

[0080] Example 2

[0081] The optimal poultry coated slow-release trace element premix dosage formula obtained in Example 1 was used for feeding test on broiler chickens.

[0082] 1) Test method:

[0083] One-day-old healthy broiler chickens of similar weight were selected, half male and half female. A single-factor completely randomized design was used, and a total of 600 experimental animals were randomly divided into 4 groups, with 5 replicates in each group and 30 animals in each replicate.

[0084] The experiment was divided into a control group and an experimental group. The experimental group was fed with an experimental diet (pellet feed before 21 days of age. Powder feed from 22 to 42 days of age).

[0085] 2) Experimental arrangement:

[0086] Test group 1: This patented product (600g per ton) + daily feed

[0087] Test group 2: This patented product (300 g per ton) + daily feed

[0088] Test group 3: This patented product (but without diarrhea prevention essential oil, other formulas are the same) (300g per ton) + daily feed

[0089] Test group 4: This patented product (but without the essential oil for increasing feed intake, other formulas are the same) (300 per ton) + daily feed

[0090] Control group: Inorganic compound trace elements (2000g per ton) + daily feed with the same other formula

[0091] 3) Feeding and management:

[0092] The trial lasted for 42 days, and all broilers had free access to food and water. The trial started on September 24, 2020 and ended on November 5, 2020.

[0093] 4) Measurement indicators and methods

[0094] The health status of the chickens was recorded every day during the test period. The empty stomach weight of the experimental chickens was weighed at 07:00 on days 21 and 42 of age. The body weight, average daily weight gain (ADG), average daily feed intake (ADFI), feed-to-weight ratio (F / G) and survival rate (%) were calculated based on the test records and repeated.

[0095] 5) Test results

[0096] The experimental results of the effect of poultry coated slow-release trace element premix on the growth performance of broilers at 11-21 days of age are shown in Table 2-1 below.

[0097] Table 2-1. Effects of poultry coated slow-release trace element premix on growth performance of broilers at 11-21 days of age

[0098]

[0099] During the growth test stage of broiler chickens at 11-21 days of age, compared with the control group, the average daily weight gain of experimental groups 1, 2, and 3 increased by 1.02g, 0.91g, 0.55g, and 0.47g respectively; the average daily feed intake increased by 1.39g, 0.55g, 0.62g, and 0.51g respectively; the feed-to-weight ratio decreased by 0.01, 0.03, 0.01, and 0.01 respectively; the diarrhea index decreased by 1.82, 1.98, 1.56, and 1.87 respectively; and the survival rate increased by 0.33, 0.29, 0.24, and 0.29 respectively.

[0100] In this phase of the experiment, the daily weight gain test was compared with the control test and the daily feed intake test was compared with the control: test group 2 ≥ test group 1 ≥ test group 4 ≥ test group 3 ≥ control group. Feed-to-meat ratio test was compared with the control: test group ≥ test group 1, test group 3, test group 4 ≥ control group. Diarrhea index test was compared with the control: test group 2 ≥ test group 4 ≥ test group 1 ≥ test group 3 ≥ control group

[0101] Comparison of survival rate test with control: test group 1 ≥ test group 2 and test group 4 ≥ test group 3 ≥ control group. It can be seen that the addition of essential oil for preventing diarrhea in test group 4 is effective.

[0102] The test results of the effect of this patented product, poultry coated slow-release trace element premix, on the growth performance of broilers at 22-42 days of age are shown in Table 2-2 below.

[0103] Table 2-2. Effects of poultry coated slow-release trace element premix on growth performance of broilers at 22-42 days of age

[0104]

[0105] During the growth test stage of broiler chickens at 22-41 days of age, compared with the control group, the average daily weight gain of experimental groups 1, 2, 3, and 4 increased by 2.11g, 1.73g, 1.19g, and 0.39g, respectively; the average daily feed intake increased by 1.97g, 1.64gg, 1.37g, and 2.05g, respectively; and the feed-to-weight ratio decreased by 0.03, 0.02, 0.01, and 0.01, respectively.

[0106] The test results of the effect of this patented product, poultry coated slow-release trace element premix, on the growth performance of broilers at 22-42 days of age are shown in Table 2-3 below.

[0107] Table 2-3. Effect of poultry coated slow-release trace element premix on growth performance of broilers from 1 to 42 days of age

[0108]

[0109] During the growth test stage of broiler chickens from 1 to 42 days of age, compared with the control group, the average daily weight gain of experimental groups 1, 2, and 3 increased by 1.73g, 1.68g, 0.81g, and 0.60g, respectively; the average daily feed intake increased by 1.02g, 0.61g, 1.58g, and 0.33g, respectively; and the feed-to-weight ratio decreased by 0.04, 0.05, 0.00, and 0.01, respectively.

[0110] Experimental Discussion

[0111] During the growth test period of broiler chickens from 1 to 42 days of age, the average daily weight gain of experimental groups 1, 2, 3, and 4 was compared with that of the control group: 1.02-2.11-1.73; 0.91-1.73-1.68; 0.55-1.19-0.81, 0.47-0.39-0.60. The weight gain order was experimental group 1 ≥ experimental group 2 ≥ experimental group 3 ≥ control group.

[0112] The average daily feed intake increased by 1.39g~1.97g~1.02g; 0.55g~1.64g~0.61g; 0.62g~1.37g~1.58g, 0.51g~2.05g~0.33g respectively. The average daily feed intake increased in the order of experimental group 2 ≥ experimental group 1 ≥ experimental group 3 ≥ experimental group 4 control group.

[0113] The feed-to-weight ratio was reduced by 0.01-0.03-0.04, 0.03-0.02-0.05, 0.01-0.01-0.00, 0.01-0.01-0.01. The feed-to-weight ratio was reduced in the order of experimental group 2 ≥ experimental group 1 ≥ experimental group 4 ≥ experimental group 3 ≥ control group.

[0114] The diarrhea index and survival rate of broiler chickens at 11-21 days of age were investigated: the diarrhea index decreased by 1.82, 1.98, 1.56, and 1.87, and the survival rate increased by 0.33, 0.29, 0.24, and 0.29, respectively. The order of diarrhea degree was control group ≥ test group 2 ≥ test group 4 ≥ test group 1 ≥ test group 3. The survival rate increased by test group 1 ≥ test group 2 ≥ test group 3 ≥ control group.

[0115] Test conclusion: The application amount of this patented product is 300g / ton to 600g / ton. The effect of using 600g / ton is better than 300g / ton, but the cost of use is doubled, so 300g / ton is still the best usage. This patented product does not add essential oils to prevent diarrhea, and the degree of diarrhea is significantly higher than that of this patented product. This patented product adds attractant essential oils, which increases daily feed intake and has a significant attractant effect. The use amount of this patented product is 300g / ton, and the effect is significantly better than that of inorganic composite trace elements (2000g added per ton).

[0116] Example 3

[0117] The optimal poultry coated slow-release trace element premix dosage formula obtained in Example 1 was used for feeding test on laying hens.

[0118] 1) Test arrangement:

[0119] Test group 1: 300g / ton of this patented product, poultry coated slow-release trace element premix + daily feed;

[0120] Test group 2: 500g / ton of this patented product, poultry coated slow-release trace element premix + daily feed;

[0121] Experimental group 3: New Hope Company's inorganic composite trace element premix 2000g / ton addition + daily feed;

[0122] Experimental group 4: amino acid chelated trace element premix 1000g / ton addition + daily feed;

[0123] Control group: feed (without trace elements added);

[0124] Daily feed is feed of the same formula and weight.

[0125] The total weight of the experimental groups 1-4 and the control group was the same.

[0126] 2) Test results:

[0127] Table 3. Effects of poultry coated slow-release trace element premix on egg production rate and feed-egg ratio of 428-460 laying hens (total pool)

[0128]

[0129]

[0130] 3) Results, discussion and conclusion:

[0131] The poultry coated slow-release trace element premix was added to the broiler diet at a rate of 300g / ton to 500g / ton. After a 32-day feeding test, the results showed that compared with the test group 1, the average feed intake of the test group 2 increased, the egg production rate decreased slightly, and the feed-egg ratio was slightly the same, but the egg-laying cost was high. Therefore, the comprehensive results showed that the test group 1 was better than the test group 2, that is, the addition rate of 300g / ton of the poultry coated slow-release trace element premix was the best. All indicators of the test groups 1 and 2 were better than those of the test groups 3, 4 and the control group.

[0132] Compared with experimental group 3 and the control group, the average feed intake and egg production rate of experimental group 4 increased slightly, and the feed-egg ratio remained slightly the same, but the egg-laying cost was low. Therefore, its various indicators were better than those of experimental group 3 and the control group, indicating that the addition of amino acid chelated trace element premix at a dosage of 1000g / ton was better than that of inorganic composite trace element premix at a dosage of 2000g / ton.

[0133] To this end, the test results show that the poultry coated slow-release trace element premix of the present invention is best added in the broiler diet at 300g / ton, and its various indicators are better than the poultry coated slow-release trace element premix at an addition amount of 500g / ton, the amino acid chelated trace element premix at an addition amount of 1000g / ton, and the New Hope Company's composite trace element premix at an addition amount of 2000g / ton. Test groups 1, 2, 3, and 4 are all better than ordinary feed without added trace elements.

[0134] The product test groups 1, 2 and 4 of this patent all showed soft feces, light yellow color, reduced odor, and significantly improved breeding environment.

[0135] Embodiment 4:

[0136] The optimal poultry coated slow-release trace element premix dosage formula obtained in Example 1 was used for feeding test on broiler chickens.

[0137] 1) Test arrangement:

[0138] Test group 1: This patented product, poultry coated slow-release trace element premix, 300g / ton addition + feed

[0139] Test group 2: 300g / ton of this patented product, slow-release trace element premix for poultry (without essential oils to increase feed intake) + daily feed

[0140] Test group 3: 300g / ton of this patented product, poultry coated slow-release trace element premix (without essential oil for preventing and treating gastroenteritis) + daily feed

[0141] Test group 4: This patented product, poultry coated slow-release trace element premix (without essential oils for increasing feed intake and essential oils for preventing and treating gastroenteritis), 300g / ton addition + daily feed

[0142] Control group: same total weight of feed as test groups 1-4 (without adding any trace elements)

[0143] Daily feed is feed of the same formula and weight.

[0144] 2) Test results:

[0145] The results of the effects of poultry coated slow-release trace element premix on broiler feed intake, weight gain rate, feed-to-meat ratio, and diarrhea severity are shown in Table 4.

[0146] Table 4. Effects of poultry coated slow-release trace element premix on feed intake, weight gain rate, feed-to-meat ratio, and diarrhea severity of broiler chickens

[0147]

[0148] *: The broiler test lasted 30 days; the number of chickens in each group was 500;

[0149] *:

[0150] 3) Discussion and conclusion:

[0151] Table 4 shows that the average feed intake of experimental groups 1, 2, 3, and 4 were 107.89g, 107.50g, 107.77g, and 107.50g, respectively, and that of the control group was 107.44g. The feeding effect was: experimental group 1 ≥ experimental group 3 ≥ experimental group 2 ≥ experimental group 4 ≥ control group. Experimental groups 1 and 3 had obvious feeding effects.

[0152] The average daily weight gain of the experimental group was 71.90g, 71.60g, 71.40g, and 71.12%, respectively, and the average daily weight gain of the control group was 70.00g. The average daily weight gain rates of the experimental group and the control group were 2.70%, 2.30%, 2.00%, and 1.40%, respectively. The order of weight gain rate was: experimental group 1 ≥ experimental group 2 ≥ experimental group 3 ≥ experimental group 4 ≥ control group. The weight gain rates of experimental group 1 and experimental group 2 were above 2.0%, and the weight gain effect was significant.

[0153] The diarrhea index of the test group was 1.10, 1.15, 3.08, and 3.10, respectively, and that of the control group was 6.52. The effect of treating diarrhea: test group 1 ≥ test group 2 ≥ test group 3 ≥ test group 4 ≥ control group. There was basically no diarrhea in test group 1 and test group 2. The test results showed that diarrhea could be prevented and treated, and the anti-inflammatory effect was good. Diarrhea occurred in test group 3 and test group 4, and severe diarrhea occurred in the control group.

[0154] The feed-to-weight ratios of the experimental groups 1, 2, 3, and 4 were 1.501:1, 1.500:1, and 1.504; 1, 1.509:1, and 1.512:1, respectively, and the feed-to-weight ratio of the control group was 1.534:1. The feed-to-meat ratio of the experimental groups decreased by 5.1%, 4.7%, 2.6%, and 4.3%, respectively. During the experiment, the feed-to-meat ratios of the experimental groups were significantly different from those of the control group.

[0155] Through the 30-day test on broilers, it can be seen that the poultry coated slow-release trace element premix has a good effect on the feed intake, weight gain rate, feed-to-meat ratio and diarrhea degree of broilers. It is obvious that the essential oil that increases the feed intake among the trace elements can have an appetite-inducing effect, and the essential oil that prevents and treats gastroenteritis can increase the weight gain rate and survival rate, and reduce the feed-to-meat ratio. The three can promote each other and play a role of 1+1+1≥3.

[0156] Example 5

[0157] The optimal poultry coated slow-release trace element premix dosage formula obtained in Example 1 was used for a 35-day feeding test on laying hens.

[0158] 1) Experimental design (raw materials not mentioned in the present invention are assumed to be the same and in the same proportion):

[0159] Test group 1: 300g / ton of the patented product of poultry coated slow-release trace element premix + daily feed; Test group 2: 300g / ton of the patented product of poultry coated slow-release trace element premix (without essential oil to increase feed intake) + daily feed;

[0160] Test group 3: Pump patented product poultry coated slow-release trace element premix (without essential oil for preventing and treating gastroenteritis)

[0161] 300g / ton addition + daily feed;

[0162] Test group 4: 300g / ton addition of the patented product poultry coated slow-release trace element premix (without essential oil for increasing feed intake and essential oil for preventing and treating gastroenteritis) + feed;

[0163] Control group: The total weight of feed was the same as that of experimental groups 1-4 (without adding any kind of trace elements).

[0164] Daily feed is feed of the same formula and weight.

[0165] Test results:

[0166] The results of the effects of poultry coated slow-release trace element premix on the production performance of sea blue brown laying hens are shown in Table 5.

[0167] Table 5. Effects of poultry coated slow-release trace element premix on production performance of 12-16 week old sea blue brown laying hens

[0168]

[0169] *: The broiler test lasted 35 days; the number of chickens in each group was (287);

[0170] *:

[0171] 3) Discussion and conclusion:

[0172] It can be seen from Table 5 that after 35 days of trial period, the egg production rates of the sea blue brown shell laying hens in the test groups 1, 2, 3 and 4 were 77.40%, 77.26%, 76.83% and 76.20%, respectively, and that of the control group was 75.39%. In comparison, the egg production rates increased by 2.01%, 1.87%, 1.44% and 0.81%, respectively; the daily egg production increased by 1.44g / hen, 1.32g / hen, 1.04g / hen and 0.60g / hen, the mortality rate decreased by 1.79%, 1.13%, 1.62% and 1.09%, the feed-egg ratio decreased by 0.06, 0.04, 0.03 and 0.02, and the total egg production increased by 15.40kg, 11.57kg, 2.83kg and 5.24kg, respectively.

[0173] Through the analysis of Table 5, it can be concluded that: the average egg production rate of the experimental group is compared with that of the control group: the egg production rate and daily egg production increase effect: experimental group 1 ≥ experimental group 2 ≥ experimental group 3 ≥ experimental group 4 ≥ control group, this patented product has a significant effect on improving the egg production rate.

[0174] In terms of feed consumption and feed-egg ratio, test group 1≥test group 2≥test group 3≥test group 4≥control group. The magnitude of the reduction in feed-egg ratio and mortality rate: test group 1≥test group 2≥test group 3≥test group 4≥control group. The results show that the effect of poultry coated slow-release trace element premix on the production performance of sea blue brown laying hens can improve the production performance of laying hens, improve feed utilization, and reduce mortality rate. Poultry coated slow-release trace elements can significantly improve the quality of eggshells, and make the eggshells harder, brighter, more shiny, and more uniform in color, chicken manure is formed, odor and ammonia odor are reduced, and the breeding environment is significantly improved.

[0175] The poultry coated slow-release trace element premix has a very good effect on the feed intake, weight gain rate, feed-to-meat ratio, diarrhea degree of broilers, and eggshell hardness is enhanced, bright, glossy, uniform color, chicken manure formation, odor and ammonia odor are reduced, and the breeding environment is significantly improved.

[0176] The difference from Examples 1-5 is that the product quality is improved and the production cycle is shortened.

[0177] Example 6

[0178] The present invention uses the optimal poultry coated slow-release trace element premix dosage formula obtained in Example 1 to conduct a 30-day feeding test on broilers.

[0179] The same formula components are added to the same daily feed in different amounts

[0180] Test group 1: this patented product (200g per ton) + daily feed

[0181] Test group 2: This patented product (300 g per ton) + daily feed

[0182] Test group 3: This patented product (400 g per ton) + daily feed

[0183] Test group 4: this patented product (500g per ton) + daily feed

[0184] Test group 5: This patented product (600g per ton) + daily feed

[0185] Test group 6: This patented product (700 g per ton) + daily feed

[0186] Test group 7: This patented product (1000g per ton) + daily feed

[0187] Feeding and management:

[0188] The trial period was 30 days, and all broilers had free access to food and water. The trial period started on September 24, 2020 and ended on October 24, 2020.

[0189] Through the experiment, a comprehensive investigation was conducted on the growth performance indicators such as weight gain rate, feed-to-meat ratio, diarrhea rate and survival rate and the ecological environment of breeding, and the conclusion was drawn that: 1. Experimental group 2, experimental group 3, experimental group 4 and experimental group 5 were the best; the investigation indicators of experimental group 1, experimental group 6 and experimental group 7 were not ideal. Therefore, in Examples 2-5, further investigation was conducted on the addition of 300 grams per ton and 600 grams per ton.

Claims

1. A method for producing a coated slow-release trace element poultry premix, characterized in that: An outer gastro-soluble coating layer and an inner pellet core; The outer gastric soluble coating layer, i.e., the coating material, includes: dextrin 1.5-3.0%, xanthan gum 0.5-1.5%, talc 1.5-3.0%, sodium carboxymethyl cellulose 1.5-3.0%, gum arabic 1.5-3.0%, sodium alginate 0.5-1.5%, polylactic acid 0.5-1.5%, polyacrylic acid 0.5-1.5%; The inner layer of the pill core includes trace elements including: zinc sulfate 25.0-28.0%, glycine iron 33.0-38.0%, copper sulfate 6.0-8.0%, manganese sulfate 5.0-7.0%, 1% sodium selenite 5.0-7.0%, calcium lactate 2.0-5.0%; essential oils for preventing enteritis 3.5-5.7%, including oregano oil 1.5-2.7%, tamanu oil 1.0-1.5%, sea buckthorn fruit oil 1.0-1.5%; essential oils for increasing food intake 0.50-1.30%, including chili oil 0.2-0.5%, pepper oil 0.2-0.5%, mustard oil 0.1-0.3%; The weight ratio of the outer gastric coating layer to the inner pellet core is 8-18:80-100; the particle size of the trace element is 0.270mm-0.212mm; the particle size of the pellet core is 0.830mm-0.380mm, and the particle size of the coated slow-release trace element poultry premix is ​​1.700mm-0.550mm; The preparation method is as follows: Step 1): Put the composite trace elements into a grinder and grind them; Step 2): Place the outer gastric soluble coating layer, i.e. the coating material, into a reaction kettle and heat to 50-60°C for mixing; Step 3): Put the composite trace elements and enteritis prevention essential oil and food intake increase essential oil obtained in step 1) into a high-speed mixing granulator, then add 10-15% of the weight of the outer gastric soluble coating layer and 2-4% of sodium carboxymethyl cellulose, mix, stir, granulate, and then put into a spheronizer for spheronization; Step 4): Put the slow-release trace element poultry premix after mixing, granulating and spheronizing in step 3) into a coating machine, spray the gastric soluble coating material liquid into it for rolling coating, and put it into a tunnel drying furnace to dry it to the safe moisture content of feed additives, that is, the moisture content is 8-12%; Step 5): The slow-release trace element poultry premix that has been shaped and dried in step 4) is placed in a three-dimensional vibration sieving machine for grading and screening, vibrating, grading, screening, weighing and packaging. After the above steps, the coated slow-release trace element poultry premix is ​​obtained.

2. The method for producing the coated slow-release trace element poultry premix according to claim 1, characterized in that: The outer gastric coating layer, i.e., the coating material, includes: 1.5% dextrin, 1.0% xanthan gum, 1.5% talcum powder, 1.5% sodium carboxymethyl cellulose, 1.5% gum arabic, 1.0% sodium alginate, 1.0% polylactic acid, and 1.0% polyacrylic acid.

3. The method for producing the coated slow-release trace element poultry premix according to claim 1, characterized in that: The inner core of the pill includes trace elements including: 27.0% zinc sulfate, 37.0% glycine iron, 7.0% copper sulfate, 6.0% manganese sulfate, 5.0% sodium selenite, and 4.0% calcium lactate; 3.5% essential oils for preventing enteritis: 1.5% oregano oil, 1.0% tamanu oil, and 1.0% sea buckthorn fruit oil; 0.5% essential oils for increasing food intake: 0.2% chili oil, 0.2% pepper oil, and 0.1% mustard oil.

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