CN113598281A

CN113598281A - Production method of coated slow-release microelement premix for poultry

Info

Publication number: CN113598281A
Application number: CN202110738711.9A
Authority: CN
Inventors: 刘志国; 战晓燕; 薛德林
Original assignee: Liaoning Weilan Biotechnology Industry Innovation Research Institute Co ltd
Current assignee: Liaoning Weilan Biotechnology Industry Innovation Research Institute Co ltd
Priority date: 2021-06-30
Filing date: 2021-06-30
Publication date: 2021-11-05

Abstract

The invention discloses a method for producing coated slow-release microelement premix for poultry, and relates to the field of premix for poultry feed. The production method of the coated slow-release microelement premix for poultry is characterized by comprising the following steps: the weight ratio of the gastric-soluble coating layer on the outer layer to the pellet core on the inner layer is 8-18: 80-100, and the particle size of the coated slow-release trace element premix is 1.700mm (10 meshes) to 0.550mm (30 meshes). Compared with the prior microelement application technical product, the coated slow-release microelement poultry premix produced by the invention can reduce the addition of the microelement in the feed by 60 percent or more, thereby reducing the environmental pollution, and is a novel high-efficiency, safe, environment-friendly and green poultry feed additive.

Description

Production method of coated slow-release microelement premix for poultry

Technical Field

The invention relates to a method for producing coated slow-release microelement poultry premix, in particular to the field of poultry feed premix or poultry feed additive.

Background

The animal microelement premix comprises various microelements such as zinc, ferrum, manganese, copper, calcium, selenium, etc. Is a mixed substance prepared by mixing various trace mineral element compounds and a carrier according to a certain proportion. It is a kind of trace or trace nutrient element necessary for animal growth and reproduction. The trace element premix is added into the daily animal feed, so that the animal health can be effectively maintained, the animal production performance can be obviously improved, and the economic benefit of cultivation is improved.

At present, trace element premix products used in feed cultivation mostly exist in a powder state, inorganic acid salts or organic complexes which are not coated and treated are mixed with chelate products as main raw materials, and the products have a plurality of defects in actual production.

1) The micro dust is much: when feed producers do the work for a long time, dust is sucked into the lung of the body to cause damage to the body; the dust can cause pollution to the production environment; sodium selenite and the like belong to dangerous goods; the dust can fly to cause poisoning of human body; the fine dust can cause explosion when exposed to fire, and is very dangerous if not managed in place.

2) Poor stability: some trace elements in the premix are volatile, and are easy to volatilize and lose if potassium iodide is used, so that the effective iodine content in the premix is reduced, and some elements are easy to generate oxidation-reduction reaction to cause failure of book making ash. The feed quality is unstable, for example, ferrous salt is easy to oxidize after contacting with light air or moisture and becomes ferric iron to lose efficacy, and the factors can cause the reduction of the actual trace element content in the feed and influence the production performance of animals.

3) Has destructive effect on vitamins: common trace elements such as copper, iron, zinc, manganese and the like have destructive effects on vitamins in the compound feed, especially the loss in a high-concentration premix is more serious and is a main factor of the loss of the vitamins, and the trace elements are also catalysts for oxidation and putrefaction of feed fat, can accelerate the oxidation and the rancidity of unsaturated fatty acid, deteriorate the feed, reduce the efficiency of the compound feed and cause the generation of toxicity, such as the increase of diarrhea and the reduction of disease resistance of animals.

4) Has an effect on the feed intake of animals: the trace elements contain high sulfate, chlorine, magnesium ions and the like, are dissolved in water, have bitter and astringent tastes, influence the palatability of the compound feed and reduce the feed intake of animals. The production performance is reduced; the compound feed oil rancidity and feed putrefaction caused by the catalysis are increased, and the animal refusal can be caused.

5) The utilization rate is low: common inorganic salt is easily combined into insoluble substance by non-degradable viscous polysaccharide and other antioxidant nutritional factors to be lost, and the actual utilization rate of trace elements is reduced.

6) And (3) pollution to the environment: in order to improve the performance of animal production, trace element loss is avoided. The feed factory and farm generally adds trace elements in excess, and most of the premix cannot be effectively utilized by animals and discharged out of the body, so that heavy metal environmental pollution is caused, and social public nuisance is gradually caused.

7) The organic micro-mineral which is widely popularized in the market at present is organic micro-mineral which mainly comprises complex salt amino acid and chelated trace elements, and the production of the product also has some problems: (1) lack of complete production process standard; (2) the product components and the compound structure are unclear, and the theoretical basis and data support are lacked; (3) the production process is complex in link and unstable in product; (4) the amino acid complex with an accurate structure has high production cost and high price; (5) the practical use effect is unstable, and the comprehensive cost performance is low, so that the wide application and popularization are limited.

The coated slow-release microelement premix compound product produced by the invention has a plurality of advantages in practical production and application:

1) no phase change, little damage and long shelf life: the invention adopts special coating and slow release process technology, avoids the direct contact of trace elements and easily oxidized and deteriorated nutrient elements such as grease, vitamins, amino acid and the like, slowly disintegrates and releases in the stomach of animals, and can effectively eliminate the oxidation and damage of the trace elements to the nutrient components of the trace elements, thereby reducing the loss of the essential nutrient elements of the animals such as unsaturated fatty acid, vitamins and the like and preventing the activity of the feed enzyme from being damaged; the feed using period can be effectively prolonged, the feed utilization rate is improved, the feed cost is reduced, the palatability is improved, and the feed intake is increased;

2) no stimulation, no damage and good ingestion: by adopting a special coating process technology, the product has stable neutral property in neutral and weak acid and alkali aqueous solutions and is not dissociated and released. Has no damage to digestive tract mucous membrane, no adverse reaction of in vivo consumption and metabolism, good feed palatability, and increased animal feed intake.

3) No loss, more absorption and low dosage: the special coating engineering technology is adopted to eliminate the oxidation reaction and denaturation loss of trace element metal ions in the feed production process. Avoids precipitation by anions such as phytic acid and the like, loss of inactivation and directional release, improves the absorption utilization rate, and reduces the addition amount to one third of the addition amount before coating.

4) Fast dissolution, no gas production and healthy stomach: the coating material adopted by the product is high in dissolution speed in gastric juice, the active ingredients are dissolved out quickly and released completely, the coating material is not dissolved to generate gas, gastric acid is unchanged, and the feed is small in absorption.

5) Small particle, no dust, cleaner: the product adopts a special coating process, is uniform particles, has good fluidity, is not classified after being added, has no dust after being coated, improves the production environment, avoids heavy metal pollution and improves the sanitary standard of feed.

6) Low consumption, less discharge and more environmental protection: by adopting a special coating process technology, the product has small usage amount, is completely absorbed in vivo, reduces the emission of heavy metals and trace elements in the environment, and better meets the requirement of environmental protection compared with the product before coating, and is applied to the product.

The invention relates to a method for producing poultry premix coated with slow-release trace elements and other products, which has essential differences of 3:

1) the process is good, electronic weighing, mechanical mixing, twice mixing and coating, and uniform mixing and coating are carried out; there are standards, which are strictly enforced by quality standards; the product is good, and the application effect is good;

2) the coating material of the outer gastric-soluble coating layer is good, the adopted organic materials are all selected and are basically used for human medical use, such as dextrin, xanthan gum, carboxymethyl cellulose, sodium alginate, polylactic acid and the like; has good dispersibility, and can be disintegrated and released in stomach.

3) The contents of the pill core comprise trace elements, zinc, iron, manganese, copper and selenium, and also comprise enteritis prevention essential oil: origanum oil, malus micromalus oil, and fructus Hippophae oil; increasing feed intake of essential oil: chili oil, pepper oil and mustard sesame oil. The additive can supplement trace elements, has better effect on preventing and treating gastroenteritis of poultry and young livestock, and can greatly stimulate olfactory sensation, increase feed intake and promote biomass increase by adopting chili oil, pepper oil and mustard sesame oil.

4) The product has special effect when applied to poultry. The quality of the eggshell is improved, and the color of the yolk is improved; the absorption and utilization rate of the feed is improved; can obviously increase the fat tenderness between ketone bodies of the broiler chickens, reduce the drip loss of muscles and improve the quality of the meat. The application effect of the product is obviously better than other coated trace element products and organic trace products which do not contain the essential oil for preventing enteritis and increasing feed intake. Plays the role of 1+1 being more than 2 and the role of 1+1+1 being more than 3, and has obvious technical effect.

Disclosure of Invention

The invention aims to provide a method for producing a poultry premix coated with slow-release trace elements, which is characterized in that a coating layer coated with a gastric-soluble coating layer is used for coating the premix coated with the trace elements of a pill core, and the coated slow-release trace element premix can ensure that all components in the trace element premix for animals are distributed more uniformly and are not volatilized, layered, caking and pollution-free, and meanwhile, the trace elements are prevented from damaging nutrient substances in the feed, and the feed is ensured to be high in stability, quality and efficiency. The addition of the trace element premix in feed production and animal breeding is greatly reduced, the production performance of animals is improved, and the pressure on environmental pollution is effectively reduced.

The invention relates to a coated slow-release microelement premix which consists of an outer gastric-soluble coating layer and an inner microelement premix pill core. The weight ratio of the outer gastric-soluble coating layer to the inner pellet core is 8-18: 80-100; the grain diameter of the trace elements is 0.270mm (50 meshes) to 0.212(70 meshes); the grain diameter of the pellet core is 0.830mm (20 meshes) to 0.380mm (40 meshes), and the grain diameter of the slow release microelement poultry premix is 0.1700(10 meshes) to 0.550mm (30 meshes).

The poultry premix with the slow release trace elements is coated, and the outer gastric-soluble coating layer comprises: 1.5-3.0% of dextrin, 0.5-1.5% of xanthan gum, 1.5-3.0% of talcum powder, 1.5-3.0% of sodium carboxymethylcellulose, 1.5-3.0% of Arabic gum, 0.5-1.5% of sodium alginate, 0.5-1.5% of polylactic acid and 0.5-1.5% of polyacrylic acid;

the poultry premix coated with the slow-release trace elements comprises an inner layer pill core containing: 25.0-28.0% of zinc sulfate, 33.0-38.0% of ferric glycinate, 6.0-8.0% of copper sulfate, 5.0-7.0% of manganese sulfate, 5.0-7.0% of 1% sodium selenite and 2.0-5.0% of calcium lactate; 3.5-5.7% of enteritis preventing essential oil: (wherein, 1.5 to 2.7 percent of origanum oil, 1.0 to 1.5 percent of cliff-birchleaf oil and 1.0 to 1.5 percent of seabuckthorn fruit oil); the feed intake of the essential oil is increased by 0.50-1.30% (wherein the capsicum oil is 0.2-0.5%, the pepper oil is 0.2-0.5%, and the mustard oil is 0.1-0.3%).

The inventor discovers and proves through a large number of scientific experiments that the preferable coating slow-release microelement premix consists of an outer gastric-soluble coating layer and an inner pellet core, wherein the weight ratio of the outer gastric-soluble coating layer to the inner pellet core is 10: 90; the grain diameter of the trace elements is 0.250mm (60 meshes); the grain diameter of the pill core is 550mm (30 meshes), and the grain diameter of the coated sustained-release microelement poultry premix is 830mm (20 meshes).

The inventor discovers and proves that the addition amount of the coated slow-release microelement poultry premix on poultry is 300-600 g/ton, and preferably 300 g/ton.

The inventor discovers and proves that the preferable poultry premix coated with the slow-release trace elements through a large number of scientific experiments, and the outer gastric-soluble coating layer comprises: 1.5% of dextrin, 1.0% of xanthan gum, 1.5% of talcum powder, 1.5% of sodium carboxymethyl cellulose, 1.5% of Arabic gum, 1.0% of sodium alginate, 1.0% of polylactic acid and 1.0% of polyacrylic acid. The inventor discovers and proves that the inner layer pill core of the preferred poultry premix coated with the slow-release trace elements comprises the following trace elements: 27.0% of zinc sulfate, 37.0% of glycine iron, 7.0% of copper sulfate, 6.0% of manganese sulfate, 5.0% of sodium selenite and 4.0% of calcium lactate; 3.5% of essential oil for preventing enteritis: (wherein the origanum oil is 1.5 percent, the malus micromalus oil is 1.0 percent, and the seabuckthorn fruit oil is 1.0 percent); the feed intake is increased by 0.5%: (wherein the oil content of Capsici fructus is 0.2%, pepper oil is 0.2%, and mustard oil is 0.1%). The coated slow-release microelement premix can be widely applied to livestock aquaculture of pigs, horses, cattle, sheep, fish, shrimps, turtles, crabs and the like, and is mainly applied to poultry aquaculture of broilers, laying hens, meat ducks, egg ducks and swiftlets. The sources of the adopted trace elements are various national approved trace element monomer additives for animals or human, including inorganic salts, complexes, chelates and the like of the trace elements, and the main sources of the trace element monomer include the following trace elements and synthetic substances thereof, which are all in the allowable use range of national policies.

The materials of the outer gastric-soluble coating layer coated with the slow-release trace element premix comprise natural or synthetic or semi-synthetic materials which can be dissolved in the stomach, and are medicinal or edible coating materials, and the skilled person can effectively select the materials according to the common knowledge in the field.

The nutrient formula adopted by the pellet core can be formulated by persons in the field according to the actual requirements of animals according to the common general knowledge in the field, and the types and the dosage of the composite trace elements are selected. And selecting essential oil for preventing enteritis (wherein the amount of oregano oil, malus johnsonii oil and seabuckthorn fruit oil is controlled below 3.5%) and essential oil for increasing feed intake (the amount of capsicum oil, pepper oil and mustard sesame oil is controlled below 0.5%). The person skilled in the art can make a preferred choice based on common general knowledge in the art.

Zinc such as zinc sulfate, zinc chloride, zinc oxide, zinc acetate, zinc lactate, zinc methionine, and zinc glycinate.

The iron is ferrous sulfide, ferrous fumarate, ferrous chloride, ferrous acetate, ferrous lactate, ferrous glycinate, etc.

Selenium including sodium selenite, selenium methionine, selenium yeast, carrageenin selenide, sodium selenide and selenomethionine.

Copper is selected from copper sulfate, copper phosphate, copper carbonate, copper chloride, copper formate, copper lysine, copper methionine, copper glycinate, and copper yeast.

Manganese sources include manganese oxide, manganese sulfate, manganese dioxide, manganese formate, manganese acetate, manganese lactate, manganese methionine and the like.

The auxiliary materials in the pill core preferably at least comprise starch, dextrin, talcum powder, carboxymethyl cellulose, Arabic gum, polyacrylic acid and the like.

Essential oil for preventing gastroenteritis: origanum oil, malus micromalus oil, and fructus Hippophae oil;

increasing feed intake of essential oil: pepper oil, mustard sesame oil, etc:

the invention also aims to provide a preparation method of the coated slow-release trace element premix. The method comprises the following steps:

step 1): putting the composite trace elements into a grinder for grinding;

step 2): putting the outer gastric-soluble coating layer (coating material) into a reaction kettle, heating to 50-60 ℃, and mixing to obtain a gastric-soluble coating material;

step 3): putting the compound trace elements obtained in the step 1) and the enteritis preventing essential oil and the feed intake increasing essential oil into a high-speed mixing granulator, adding water accounting for 10-15% of the weight of the outer gastric-soluble coating layer and sodium carboxymethyl cellulose accounting for 2-4% of the weight of the outer gastric-soluble coating layer, mixing, stirring, granulating, and then entering a spheronizer for spheronization;

step 4): putting the poultry premix subjected to mixing, granulating and spheronizing in the step 3) into a coating machine, spraying the poultry premix subjected to slow release of trace elements in the step 2) to obtain a gastric-soluble coating material, performing rolling coating, and putting the poultry premix into a tunnel type drying furnace to dry until the safe moisture content (the water content is 8-12%, and is preferably 10%) of the feed additive;

step 5): and (3) preparing the poultry premix subjected to shaping and drying in the step 4), putting the poultry premix into a three-dimensional vibrating screen grading sieving machine, vibrating, grading, sieving, weighing and packaging. The poultry premix coated with the slow-release trace elements is obtained through the steps, and the product is a novel poultry feed additive which is efficient, safe, environment-friendly and green.

Compared with the prior art, the coating slow-release microelement premix has the following advantages:

1) the components in the coated slow-release trace element premix are distributed more uniformly and are not layered, so that the effect of the feeding land is ensured.

2) Due to the coating layer, the loss of the nutrition value effect caused by the oxidation of ferrous ions in the premix into ferric ions can be effectively prevented.

3) The coating layer can prevent the volatilization and the content reduction of some volatile trace elements from influencing the feeding effect.

4) The premix for coating the slow-release trace elements with proper particle size and the thickness of the coating layer can ensure that the effective trace elements are not lost and cannot generate side effects before reaching the stomach. When reaching the stomach contraction position, the trace elements can be completely absorbed and released, thereby greatly improving the utilization rate of the trace elements, greatly reducing the addition of the trace elements and ensuring the production of animals.

5) The coating layer can prevent some volatile microelements from affecting the feeding effect due to the reduction of the volatile content, and the coating slow-release microelement premix with proper particle size and the thickness of the coating layer can ensure that the effective microelements reach the stomach. The premise is not lost, the loss is avoided, no side effect is generated,

6) on the basis of guaranteeing the production performance of animals, compared with the prior art, the feed additive can improve the addition of trace elements in unit feed and reduce 30 to 70 or more, thereby reducing the pressure on the environment, so that the feed additive is a green feed additive and is a five-effective prevention. The iron, copper and zinc ions have catalytic and oxidizing effects on fat vitamins, the loss of vitamins is reduced, the rancidity of fat is prolonged, the quality guarantee period of the feed is six, moisture absorption and caking are avoided, the color of blocks is not changed, the quality guarantee period of the trace element premix is prolonged, and the effect is more stable.

7) Improves the palatability of the feed, reduces the stimulation of sulfate ions and metal ions on the digestive tract, and improves the feed intake.

8) No dust, safety to human and livestock, and no pollution to environment.

9) The addition amount of the trace elements is reduced, and the excessive trace elements are prevented from being discharged out of the body. Causing pollution of water and soil and affecting agricultural production. Compared with amino acid chelated trace elements, the coated slow-release trace element premix has the advantages of low cost, stable performance and high cost performance.

The invention adopts special coating and slow release process technology, can separate trace elements from easily oxidized and deteriorated nutrient elements such as grease, vitamins, amino acid and the like, avoid direct contact, slowly disintegrate and release in animal stomach, and effectively eliminate the oxidation of the trace elements to the nutrient components thereof, thereby reducing the loss of the essential nutrient elements of animals such as unsaturated fatty acid, vitamins and the like, preventing the activity of the feed enzyme from being influenced, and prolonging the service life of the feed; the feed utilization rate can be effectively improved, the feed cost is reduced, the palatability is improved, and the feed intake is increased; can effectively prevent gastrointestinal diseases such as gastroenteritis and the like; when the feed is applied to poultry animals, the quality of eggshells can be obviously improved, the color of egg yolks is improved, the digestion, absorption and utilization rate of the feed is improved, the tenderness of fat between muscles of broiler chickens is increased, the drip loss of the muscles is reduced, and the quality of the meat is improved. Compared with the prior microelement application technical product, the coated slow-release microelement poultry premix produced by the invention can reduce the addition of the microelement in the feed by 60 percent or more, thereby reducing the environmental pollution, and is a novel high-efficiency, safe, environment-friendly and green poultry feed additive.

Detailed Description

The following further illustrates the invention, but is not intended to limit the invention.

Example 1

The production method of the poultry premix coated with the slow-release trace elements is characterized by comprising the following steps: the preparation method comprises the following steps:

1) crushing the composite trace elements;

2) mixing gastric coating materials;

3) mixed coating of composite trace elements and gastric soluble coating materials;

4) granulating and drying the compound trace elements;

5) sieving the compound trace element premix in stages, weighing and packaging;

putting the composite trace elements obtained in the step 1) into a micro-pulverizer to pulverize; putting the gastric-soluble coating material obtained in the step 2) into a reaction kettle for mixing; putting the composite trace elements and the gastric soluble coating material obtained in the step 3) into a high-speed mixing coating machine for mixed coating; putting the composite trace elements obtained in the step 4 into a granulating dryer for granulating and drying; putting the composite microelement premix obtained in the step 5) into a molecular vibration sieve for grading sieving, weighing and packaging; the poultry premix coated with the slow-release trace elements obtained by the steps is a novel poultry feed additive which is efficient, safe, environment-friendly and green.

The source of the poultry microelement premix raw material, the dosage and the source of the organic microelement are as follows in the following table 1:

TABLE 1 formula of premix of trace elements for poultry

76-93% of trace elements, 3.5-5.7% of essential oil for preventing enteritis and 0.5-1.3% of essential oil for increasing feed intake;

*: the inner layer pill core comprises trace elements, essential oil for preventing enteritis and increasing feed intake, and the proportion of the essential oil is as follows: 80-100 parts.

The optimal dosage formula of the organic trace through repeated process experiments and feeding experiments is as follows:

the inner layer pill core comprises the following trace elements: 27.0% of zinc sulfate, 37.0% of glycine iron, 7.0% of copper sulfate, 6.0% of manganese sulfate, 5.0% of sodium selenite and 4.0% of calcium lactate; 3.5% of essential oil for preventing enteritis: (wherein the origanum oil is 1.5 percent, the malus micromalus oil is 1.0 percent, and the seabuckthorn fruit oil is 1.0 percent); the feed intake is increased by 0.5%: (wherein the weight ratio of Capsici fructus oil 0.2%, pepper oil 0.2%, and mustard oil 0.1%) is preferably 90.0,

the gastric coating layer (coating material) of the outer layer comprises: 1.5-3.0% of dextrin, 0.5-1.5% of xanthan gum, 1.5-3.0% of talcum powder, 1.5-3.0% of sodium carboxymethylcellulose, 1.5-3.0% of Arabic gum, 0.5-1.5% of sodium alginate, 0.5-1.5% of polylactic acid and 0.5-1.5% of polyacrylic acid; the proportion of the gastric-soluble coating layer (coating material) of the outer layer is as follows: 8-18%.

The weight ratio of the coating layer to the inner layer pill core is 8-18: 80-100%.

The optimal dosage formula after repeated process experiments and feeding experiments is as follows:

the inner layer pill core comprises the following trace elements: 27.0% of zinc sulfate, 37.0% of glycine iron, 7.0% of copper sulfate, 6.0% of manganese sulfate, 5.0% of sodium selenite and 4.0% of calcium lactate; 3.5% of essential oil for preventing enteritis: (wherein the origanum oil is 1.5 percent, the malus micromalus oil is 1.0 percent, and the seabuckthorn fruit oil is 1.0 percent); the feed intake is increased by 0.5%: (wherein the weight ratio of Capsici fructus oil 0.2%, pepper oil 0.2%, and mustard oil 0.1%) is preferably 90.0.

The gastric coating layer (coating material) of the outer layer comprises: dextrin 1.5%, xanthan gum 1.0%, pulvis Talci 1.5%, sodium carboxymethylcellulose 1.5%, acacia 1.5%, sodium alginate 1.0%, polylactic acid 1.0%, and polyacrylic acid 1.0%, preferably 10.0% in total weight ratio.

The weight ratio of the coating layer to the inner layer pill core is 10.0:90.0, which is the best.

Example 2

The optimal poultry coating slow-release microelement premix formula obtained in example 1 is used for feeding experiments on broiler chickens.

1) The test method comprises the following steps:

healthy broiler chickens with the age of 1 day and similar body weight are selected, and the broiler chickens are half of the cock and half of the mother. A single-factor completely random design was used, with a total of 600 animals tested, randomly divided into 4 groups of 5 replicates each, with 30 replicates each.

The test is divided into a control group and a test group, and the test group is fed with test daily ration (granular feed is fed before 21 days of age, and powder feed is fed at 22-42 days of age).

2) Test arrangement:

test group 1: the product of the patent (600 g added per ton) + daily feed

Test group 2: the patent product (300 g/ton) plus daily feed

Test group 3: the product of the patent (but does not contain essential oil for preventing diarrhea, and the formula is the same as other formulas) (300 g is added in each ton of the product) + daily feed

Test group 4: the product of the patent (but does not contain essential oil for increasing food intake, and the formula is the same with other formulas) (300 is added in each ton) + daily feed

Control group: under the condition of the same other formula, inorganic composite trace elements (2000 g of inorganic composite trace elements are added in each ton of the feed) and daily feed

3) Feeding management:

the test period is 42 days, and all broilers eat and drink water freely. Test time: beginning at 24 months of 2020 and ending at 5 months of 2020 and 11.

4) Index and method of measurement

The health status of the chickens was recorded daily during the test period. 21. The fasting weight of the test chickens at 42 days of age 07:00 was measured in units of replicates. The body weight, Average Daily Gain (ADG), Average Daily Feed Intake (ADFI) and feed/weight ratio (F/G) and survival (%) were calculated in the unit of repetition according to the test record.

5) Test results

The experimental results of the influence of the poultry coated slow-release trace element premix on the growth performance of the broiler chickens at the age of 11-21 days are shown in the following tables 2-1.

TABLE 2-1 influence of poultry coated slow-release microelement premix on growth performance of broiler chickens 11-21 days old

In the growth test stage of 11-21 days old broiler chickens, the average daily gain of the test groups 1, 2 and 3 is respectively increased by 1.02g, 0.91g, 0.55g and 0.47g compared with that of a control group; the average daily food intake is respectively increased by 1.39g, 0.55g, 0.62g and 0.51 g; the material weight ratio is respectively reduced by 0.01, 0.03, 0.01 and 0.01; the diarrhea index is respectively reduced by 1.82, 1.98, 1.56 and 1.87, and the survival rate is respectively improved by 0.33, 0.29, 0.24 and 0.29.

The stage of the test, the daily gain test and the control are compared, and the daily feed intake test and the control are compared: the test group 2 is more than or equal to the test group 1, more than or equal to the test group 4, more than or equal to the test group 3 and more than or equal to the control group. The feed conversion ratio test and the control are compared: the test group is more than or equal to the test group 1, the test group 3 and the test group 4 is more than or equal to the control group. Diarrhea index test compared to control: test group 2 is more than or equal to test group 4 is more than or equal to test group 1 is more than or equal to test group 3 is more than or equal to control group

Survival rate test and comparison: the test group 1 is more than or equal to the test group 2, and the test group 4 is more than or equal to the test group 3 is more than or equal to the control group. It can be seen that the addition of the essential oil for preventing diarrhea in test group 4 has an effect.

The test results of the influence of the poultry coated slow-release trace element premix on the growth performance of 22-42-day-old broilers are shown in tables 2-2 below.

TABLE 2-2 influence of poultry coated slow-release microelement premix on growth performance of broiler chickens of 22-42 days old

In the growth test stage of 22-41 days old broiler, the average daily gain of test groups 1, 2, 3 and 4 is respectively increased by 2.11g, 1.73g, 1.19g and 0.39g compared with that of a control group; the average daily feed intake is respectively improved by 1.97g, 1.64gg, 1.37g and 2.05 g; the material weight ratio is respectively reduced by 0.03, 0.02, 0.01 and 0.01.

The test results of the influence of the poultry coated slow-release trace element premix on the growth performance of 22-42-day-old broilers are shown in tables 2-3 below.

TABLE 2-3 growth performance of poultry coated slow-release microelement premix on broiler chickens of 1-42 days old

In the growth test stage of 1-42 days old broiler, the average daily gain of test groups 1, 2 and 3 is respectively increased by 1.73g, 1.68g, 0.81g and 0.60g compared with that of a control group; the average daily food intake is respectively increased by 1.02g, 0.61g, 1.58g and 0.33 g; the material weight ratio is respectively reduced by 0.04, 0.05, 0.00 and 0.01.

Discussion of the experiments

In the growth test stage of the broiler chickens of 1-42 days old, the test groups 1, 2, 3 and 4 are compared with the control group: the average daily gain amplitude is 1.02-2.11-1.73 respectively; 0.91 to 1.73 to 1.68; 0.55 to 1.19 to 0.81, 0.47 to 0.39 to 0.60. The weight gain sequence test group 1 is more than or equal to the test group 2 and more than or equal to the test group 3 and more than or equal to the control group.

The average daily feed intake is respectively improved by 1.39g to 1.97g to 1.02 g; 0.55g to 1.64g to 0.61 g; 0.62-1.37-1.58 g and 0.51-2.05-0.33 g. The average daily food intake is respectively increased, and the sequence test group 2 is more than or equal to the test group 1 and more than or equal to the test group 3 and more than or equal to the test group 4 control group.

The material weight ratio is respectively reduced by 0.01-0.03-0.04; 0.03 to 0.02 to 0.05; 0.01 to 0.00, 0.01 to 0.01. The material weight ratio is respectively reduced, and the sequence test group 2 is more than or equal to the test group 1 and more than or equal to the test group 4 and more than or equal to the test group 3 and more than or equal to the control group.

And the diarrhea index condition and the survival rate condition in the growth test stage of the broiler chickens of 11-21 days are considered: the diarrhea index is respectively reduced by 1.82, 1.98, 1.56 and 1.87, and the survival rate is respectively improved by 0.33, 0.29, 0.24 and 0.29. The diarrhea degree sequence control group is more than or equal to the test group 2, more than or equal to the test group 4, more than or equal to the test group 1, more than or equal to the test group 3, and the survival rate is respectively improved for the test group 1, more than or equal to the test group 2, more than or equal to the test group 3, more than or equal to the control group.

And (4) test conclusion: the application amount of the product is 300 g/ton to 600 g/ton, the effect of the application amount of 600 g/ton is better than 300 g/ton, but the use cost is doubled, so that the application amount of 300 g/ton is the optimal use amount. The product of the patent is not added with essential oil for preventing diarrhea, and the diarrhea degree is obviously higher than that of the product of the patent. The addition increases phagostimulant essential oil in this patent product, and daily food intake increases, has obvious phagostimulant effect, and this patent product use amount is 300 grams per ton, and the effect is obviously better than inorganic compound microelement (2000 grams are added to per ton).

Example 3

The optimal poultry coating slow-release microelement premix formula obtained in the example 1 is used for feeding experiments on laying hens.

1) Test arrangement:

test group 1: the product of the patent is poultry coated slow-release microelement premix with the addition amount of 300 g/ton and daily feed;

test group 2: the product of the patent is poultry coated with the slow release microelement premix with the addition of 500 g/ton and daily feed;

test group 3: the addition amount of the inorganic composite trace element premix of the new hope company is 2000 g/ton plus daily feed;

test group 4: 1000 g/ton addition amount of the amino acid chelated trace element premix and daily feed;

control group: feed (no trace elements added);

the daily feed has the same formula and weight.

The total weight of the test groups 1-4 and the control group was the same.

2) And (3) test results:

TABLE 3 influence of premix for poultry coated with slow-release trace elements on the laying rate and feed-egg ratio of 428-one 460 laying hens (pool total)

3) Discussion of results and conclusions:

the poultry coated slow-release microelement premix is added into the daily ration feed for broilers according to the addition amount of 300-500 g/ton, and the result of a feeding test for 32 days shows that: compared with the test group 1, the test group 2 has the advantages that the average feed intake is increased, the laying rate is slightly reduced, the feed-egg ratio is slightly kept level, but the egg-laying cost is high, therefore, the comprehensive result evaluation test group 1 is better than the test group 2, namely, the poultry coated slow-release microelement premix has the best addition amount of 300 g/ton. The indexes of the test group 1 and the test group 2 are better than those of the test group 3, the test group 4 and the control group.

Compared with the test group 3 and the control group, the test group 4 has slightly increased average feed intake, slightly increased laying rate and slightly leveled feed-egg ratio, but the egg-making cost is low, so that all indexes are better than those of the test group 3 and the control group, which shows that the addition amount of the amino acid chelated trace element premix is 1000 g/ton, and the result is better than that of the inorganic composite trace element premix 2000 g/ton.

For this reason, the test results show that: the poultry coated slow-release microelement premix of the invention is optimal in the daily ration of broiler according to the addition of 300 g/ton, and each index is better than that of 500 g/ton of poultry coated slow-release microelement premix, 1000 g/ton of amino acid chelated microelement premix and 2000 g/ton of composite microelement premix of a new hope company, and test groups 1, 2, 3 and 4 are better than common feeds without added microelements.

The product test group 1, test group 2 and test group 4 of this patent all show that excrement and urine is soft, and the colour is light yellow, and the stink alleviates, and the breed environment obviously improves.

Example 4:

1) Test arrangement:

test group 1: the product of the patent is poultry coating slow release microelement premix with 300 g/ton addition amount and feed

Test group 2: the product of the patent is poultry coated slow-release microelement premix (without essential oil for increasing feed intake) with the addition of 300 g/ton and daily feed

Test group 3: the product of the patent is poultry coated slow-release microelement premix (without essential oil for preventing and treating gastroenteritis) with the addition amount of 300 g/ton and daily feed

Test group 4: the product of the patent is poultry coated slow-release microelement premix (does not contain essential oil for increasing feed intake and essential oil for preventing and treating gastroenteritis) with the addition of 300 g/ton and daily feed

Control group: the total weight of the feed was the same as that of test groups 1 to 4 (no trace elements added)

The daily feed has the same formula and weight.

2) And (3) test results:

the results of the poultry coating slow release microelement premix on the feed intake, the weight gain rate, the feed-meat ratio and the diarrhea degree of the broilers are shown in table 4.

Table 4 influence of poultry coated slow-release microelement premix on broiler feed intake, weight gain rate, feed-meat ratio and diarrhea degree

*: the number of test days of the broiler chickens is 30 days; the number of tested chickens in each group is 500;

*：

3) discussion and conclusions:

as seen from table 4: the average feed intake of test groups 1, 2, 3 and 4 are respectively as follows: 107.89g, 107.50g, 107.77g and 107.50g, 107.44g as a control group, and the ingestion effect is as follows: the test group 1 is more than or equal to the test group 3 is more than or equal to the test group 2 is more than or equal to the test group 4 is more than or equal to the control group. The test group 1 and the test group 3 have obvious food calling effect.

The average daily gain of the test groups is respectively as follows: 71.90g, 71.60g, 71.40g and 71.12 percent of average daily gain of a control group of 70.00g, the average daily gain of the test group and the average daily gain of the control group are respectively 2.70 percent, 2.30 percent, 2.00 percent and 1.40 percent, and the sequence of the gain is as follows: the test group 1 is more than or equal to the test group 2, more than or equal to the test group 3, more than or equal to the test group 4 and more than or equal to the control group. The weight gain rate of the test group 1 and the test group 2 is more than 2.0 percent, and the weight gain effect is obvious.

The diarrhea index of the test group is 1.10, 1.15, 3.08 and 3.10 respectively, and the diarrhea index of the control group is 6.52. The effect of treating diarrhea is as follows: the test group 1 is more than or equal to the test group 2, more than or equal to the test group 3, more than or equal to the test group 4 and more than or equal to the control group. The test group 1 and the test group 2 have no diarrhea basically, the test result is that the diarrhea can be prevented and treated, the anti-inflammation effect is good, the test group 3 and the test group 4 have diarrhea, and the control group has severe diarrhea.

The weight ratios of the materials in test groups 1, 2, 3 and 4 are respectively as follows: 1.501: 1. 1.500: 1. 1.504; 1. 1.509: 1. 1.512: 1, the weight ratio of the reference group material is 1.534: 1. the feed-meat ratio of the test group is respectively reduced by 5.1%, 4.7%, 2.6% and 4.3%. Compared with a control group, the test group has obvious difference in feed-meat ratio in the test process.

As can be seen by the broiler 30-day test: the poultry coated slow-release microelement premix has good influence on the feed intake, the weight gain rate, the feed-meat ratio and the diarrhea degree of the broilers. Obviously, the essential oil with increased feed intake in the trace elements can play a food calling role, the essential oil for preventing and treating gastroenteritis can improve the weight gain rate and the survival rate, and the feed conversion ratio is reduced, so that the three can mutually promote to play a role of more than or equal to 3 by 1+1+ 1.

Example 5

The optimal poultry coating slow-release microelement premix formula obtained in the example 1 is used for 35-day feeding tests on laying hens.

1) Experimental design (the raw materials which are not mentioned in the invention, namely default are the same, and the proportion is the same):

test group 1: the product of the patent is poultry coated slow-release microelement premix with the addition amount of 300 g/ton and daily feed; test group 2: the product of the patent is poultry coated slow-release microelement premix (without essential oil for increasing feed intake) with the addition of 300 g/ton and daily feed;

test group 3: pump patent product poultry coating slow-release microelement premix (does not contain essential oil for preventing and treating gastroenteritis)

300 g/ton addition amount plus daily feed;

test group 4: the product of the patent is poultry coated slow-release microelement premix (does not contain essential oil for increasing feed intake and essential oil for preventing and treating gastroenteritis) with the addition amount of 300 g/ton and feed;

control group: the total weight of the feed was the same as that of the test groups 1-4 (no trace elements of any kind were added).

The daily feed has the same formula and weight.

And (3) test results:

the results of the effect of the poultry coated slow-release microelement premix on the production performance of the bluish brown laying hen groups are shown in table 5.

TABLE 5 influence of poultry coated slow-release microelement premix on the production performance of 12-16 weeks old bluish brown laying hen flocks

*: the number of test days of the broiler chickens is 35 days; the number of the tested chickens in each group is (287);

*：

3) discussion and conclusions:

from table 5 it can be derived: the laying hens with the blue brown shells have the laying rates of test groups 1, 2, 3 and 4 respectively after 35 days of test period: 77.40%, 77.26%, 76.83% and 76.20% of the control group, and the laying rate is respectively improved by 2.01%, 1.87%, 1.44% and 0.81% compared with the control group; the daily unit yield is improved by 1.44 g/unit, 1.32 g/unit, 1.04 g/unit and 0.60 g/unit, the death and culling rate is reduced by 1.79%, 1.13%, 1.62% and 1.09%, the material-egg ratio is reduced by 0.06, 0.04, 0.03 and 0.02, and the total egg yield is respectively improved by 15.40kg, 11.57kg, 2.83kg and 5.24 kg.

Analysis by table 5 yields: the average laying rate of the test group is compared with that of the control group: the laying rate and daily yield increase effect: the test group 1 is more than or equal to the test group 2, more than or equal to the test group 3, more than or equal to the control group 4, and the product of the patent has the effect of obviously improving the laying rate.

In terms of material consumption and material-egg ratio, the test group 1 is more than or equal to the test group 2, more than or equal to the test group 3, more than or equal to the test group 4 and more than or equal to the control group. The amplitude effects of material-egg ratio reduction and death-elutriation rate reduction are as follows: the test group 1 is more than or equal to the test group 2, more than or equal to the test group 3, more than or equal to the test group 4 and more than or equal to the control group. The result shows that the influence of the poultry coated slow-release trace element premix on the production performance of the blue-brown laying hen group can improve the production performance of the laying hen, improve the feed utilization rate and reduce the death and culling rate. The poultry coating slow-release trace elements can obviously improve the quality of the eggshells, and the eggshells have the advantages of enhanced hardness, brightness, good luster, uniform and consistent color, chicken manure molding, reduced odor and ammonia odor, and obviously improved breeding environment.

The poultry coated slow-release microelement premix has the advantages of improving the feed intake, weight gain rate, feed-meat ratio and diarrhea degree of broilers, enhancing the hardness of eggshells, brightening the eggshells, improving the luster, ensuring uniform and consistent color, forming chicken manure, reducing odor and ammonia odor and obviously improving the culture environment. Has good influence.

The difference from the examples 1 to 5 is that the production period is shortened in order to improve the product quality.

Example 6

The optimal poultry coated slow-release microelement premix formula obtained in the embodiment 1 is used for feeding a broiler chicken for 30 days.

The same formula components are added into the same daily feed in different adding amounts

Test group 1: the patent product (per ton adding: 200 g) + daily feed

Test group 2: the patent product (300 g/ton) plus daily feed

Test group 3: the product of the patent (400 g added in each ton) + daily feed

Test group 4: the patent product (500 g per ton) plus daily feed

Test group 5: the product of the patent (600 g added per ton) + daily feed

Test group 6: the product of the patent (700 g added in each ton) + daily feed

Test group 7: the product of the patent (1000 g added in each ton) + daily feed

Feeding management:

the test period is 30 days, and all broilers eat and drink water freely. Test time: beginning at 24 months 9 in 2020 and ending at 24 months 10 in 2020.

Through tests, the indexes of growth performance such as weight gain rate, feed conversion ratio, diarrhea rate, survival rate and the like and the ecological environment of cultivation are comprehensively considered, and the obtained conclusion is that: 1. test group 2, test group 3, test group 4 and test group 5 are the best; in examples 2 to 5, the amount of 300 g/ton and 600 g/ton used were further examined because the indexes in the examination of test group 1, test group 6, and test group 7 were not satisfactory.

Claims

1. The production method of the poultry premix coated with the slow-release trace elements is characterized by comprising the following steps: an outer gastric coating layer and an inner pellet core;

the gastric coating layer (coating material) of the outer layer comprises: dextrin, xanthan gum, fossil powder, carboxymethyl cellulose, arabic gum, sodium alginate, polylactic acid and polyacrylic acid;

the pill core of the inner layer comprises: trace elements, essential oil for preventing gastroenteritis, and essential oil for increasing feed intake; the trace elements include: zinc sulfate, glycine iron, copper sulfate, manganese sulfate, sodium selenite and calcium lactate; the essential oil for preventing gastroenteritis comprises: origanum oil, malus micromalus oil, and fructus Hippophae oil; the essential oil for increasing the feed intake comprises: capsicum oil, pepper oil, mustard oil;

the weight ratio of the gastric-soluble coating layer on the outer layer to the pill core on the inner layer is 8-18: 80-100; the grain size of the trace elements is 0.270 mm-0.212; the grain diameter of the pill core is 0.830 mm-0.380 mm, and the grain diameter of the coated slow-release microelement poultry premix is 1.700 mm-0.550 mm.

2. The method for producing the coated sustained-release trace element premix for poultry according to claim 1, wherein:

the gastric coating layer (coating material) of the outer layer comprises: 1.5-3.0% of dextrin, 0.5-1.5% of xanthan gum, 1.5-3.0% of talcum powder, 1.5-3.0% of sodium carboxymethylcellulose, 1.5-3.0% of Arabic gum, 0.5-1.5% of sodium alginate, 0.5-1.5% of polylactic acid and 0.5-1.5% of polyacrylic acid;

the pill core of the inner layer comprises the following trace elements: 25.0-28.0% of zinc sulfate, 33.0-38.0% of ferric glycinate, 6.0-8.0% of copper sulfate, 5.0-7.0% of manganese sulfate, 5.0-7.0% of 1% sodium selenite and 2.0-5.0% of calcium lactate; 3.5-5.7% of enteritis preventing essential oil: (wherein, 1.5 to 2.7 percent of origanum oil, 1.0 to 1.5 percent of malus micromalus linne oil and 1.0 to 1.5 percent of seabuckthorn fruit oil); the feed intake of the essential oil is increased by 0.50-1.30% (wherein the capsicum oil is 0.2-0.5%, the pepper oil is 0.2-0.5%, and the mustard oil is 0.1-0.3%).

3. The method for producing the coated sustained-release trace element premix for birds according to claim 1 or 2, wherein:

the gastric coating layer (coating material) of the outer layer comprises: 1.5% of dextrin, 1.0% of xanthan gum, 1.5% of talcum powder, 1.5% of sodium carboxymethyl cellulose, 1.5% of Arabic gum, 1.0% of sodium alginate, 1.0% of polylactic acid and 1.0% of polyacrylic acid.

4. The method for producing the coated sustained-release trace element premix for birds according to claim 1 or 2, wherein:

the inner layer pill core comprises the following trace elements: 27.0% of zinc sulfate, 37.0% of glycine iron, 7.0% of copper sulfate, 6.0% of manganese sulfate, 5.0% of sodium selenite and 4.0% of calcium lactate; 3.5% of essential oil for preventing enteritis: (wherein the origanum oil is 1.5 percent, the malus micromalus oil is 1.0 percent, and the seabuckthorn fruit oil is 1.0 percent); the feed intake is increased by 0.5%: (wherein the oil content of Capsici fructus is 0.2%, pepper oil is 0.2%, and mustard oil is 0.1%).

5. The method for producing the coated sustained-release trace element premix for poultry according to claim 1, wherein: the weight ratio of the gastric-soluble coating layer on the outer layer to the pill core on the inner layer is 10.0: 90.0; the grain size of the trace elements is 0.250 mm; the grain diameter of the pill core is 550mm, and the grain diameter of the coated slow-release microelement poultry premix is 0.830 mm.

6. The method for producing the coated sustained-release trace element premix for poultry according to claim 1, wherein: the preparation method comprises the following steps:

step 1): putting the composite trace elements into a grinder for grinding;

step 2): placing the outer gastric-soluble coating layer (coating material) into a reaction kettle, heating to 50-60 ℃, and mixing;

step 3): putting the compound trace elements obtained in the step 1) and the enteritis preventing essential oil and the feed intake increasing essential oil into a high-speed mixing granulator, adding 10-15% of purified water and 2-4% of sodium carboxymethyl cellulose by weight of an outer gastric-soluble coating layer, mixing, stirring, granulating, and then putting into a spheronizer for spheronization;

step 4): putting the poultry premix subjected to mixing, granulating and spheronizing in the step 3) into a coating machine, spraying gastric-soluble coating material liquid for rolling coating, and putting into a tunnel type drying furnace for drying until the safe moisture content (the water content is 10%) of the feed additive;

7. The method for producing the coated sustained-release trace element premix for poultry according to claim 1, wherein: the addition amount of the coated slow-release microelement premix for poultry on the poultry is 300-600 g/ton,

preferably, the addition amount of the poultry premix coated with the slow release trace elements on the poultry is 300 g/ton.