2020-10-14 Back to List
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1. Adopt advanced premix feed formula
The formula of poultry chicken pig cattle livestock premix feed is the core of the production technology. It is produced by animal nutrition experts of the specialized premix feed mill line according to the characteristics of the nutritional needs of the animals at each stage of growth and production, and the basic nutritional content of domestic feed ingredients. What to make up for what, economical and reasonable, low-value and high-efficiency as the principles, while considering the external environment and premix feed processing technology and other factors, carefully designed. On the one hand, the appropriate and appropriate amount of additive materials should be selected in combination with nutritional needs, user feeding levels and conditions; on the other hand, processing needs should be considered. For most components that do not affect safety, such as nutritional additives, mastering the appropriate amount is the formulation technology key.
The dosage and usage of medicinal feed additives and certain sensitive ingredients (such as selenium, copper, etc.) must have sufficient scientific basis and necessary practical experience. Otherwise, errors are prone to occur and the consequences are serious. The ratio of raw materials is an important factor that affects the quality of the premix. The ratio of active ingredients to diluent, the ratio of various trace elements, and the ratio of related active ingredients in the premix should be just right. The formula should not be immutable. It should constantly adjust the formula according to market feedback, local conditions, seasonal changes, the latest technology and product information, and be rigorous but flexible, and always make the pig chicken cattle livestock poultry premix feed products close to the national conditions and actual production.
2. Choose high-quality raw materials
The quality of the raw materials has a great impact on the actual utility of the premix. The most basic requirements for high-quality raw materials are high purity and no toxic and harmful substances. The most important thing is the content of active ingredients, especially vitamin A and vitamin C, which are easily destroyed. For other additives, the dosage should be determined after actual measurement. The raw materials of trace element compounds must have the characteristics of high biological potency, stable physical properties and few toxic and harmful substances. In addition, some additives, their quality and dosage form are likely to affect other additives, so special attention should be paid. For example, the hygroscopicity of ferrous sulfate heptahydrate is very strong, and it is also very destructive to vitamin A, while the effect of ferrous sulfate monohydrate on vitamin A is relatively small. If a protective agent is added, the impact is even smaller and itself The activity is very good.
China supply animal feed mills for making animal livestock horse goat duck dog cow prawn pig premix feeds should select high-quality raw materials, and accurately determine the quality and potency of the raw materials.
When choosing vitamins, pay attention to the following two points:
① Choose high biological value;
②Choose different vitamins according to climate characteristics. For example, thiamine mononitrate is better than thiamine hydrochloride in hot and humid summer. When selecting trace element raw materials, many factors such as the content of its ingredients, particle size, crystal water and the content of toxic and harmful substances should be considered.
③Medicine feed additives should also pay attention to safety issues. When using them, they must fully understand their use period, withdrawal period and precautions according to the instructions and the test materials provided by the manufacturer.
3. Use the best carrier and diluent
Carriers are particles that carry or adsorb a small amount of active ingredients, which are inactive substances in the premix. The selection of the carrier should follow the following principles: strong chemical stability, no damage to the adsorbent; moderate particle size, good mixing with complete feed; low price. The particle size of the carrier should be between 0.177~0.59mm; the density should be similar to the density of the microcomponents it carries. The carrier density in the composite premix should be the average of the density of each microcomponent; when mixing the carrier and additives, add 1.5% vegetable oil can improve the adhesion of the carrier; the water content of the carrier should be controlled at 8%~10%, and the carrier should not damage the activity of the active ingredients it carries; the pH of the carrier should be close to neutral. Commonly used carriers are: shell powder, wheat bran, corn, bran powder, defatted rice bran, stone powder, zeolite powder, salt and so on.
The diluent is a component that reduces the concentration of the active substance in the premix and separates the micro-particles from each other. It is an inactive substance like the carrier and plays a role in reducing the reaction between the active ingredients and conducive to the stability of the active ingredients. The requirements for the diluent are: the water content of the diluent should be less than 10%, no moisture absorption, no agglomeration; the particle size requirement is between 0.05~0.6mm; the surface should be smooth and have good fluidity; pH value requirements Between 5.5 and 7.5, there is no static charge; it must be edible, harmless and stable.
4. Raw material pretreatment
Vitamins are easily affected by factors such as oxygen, humidity, heat, light, metal ions, etc., which reduce their activity. In order to meet the requirements of the premix feed manufacturing process, all vitamin additives must undergo special pretreatment to maintain their stability and activity. Emulsification technology can be used to form particles, which are evenly dispersed in the matrix, and then the coating technology can be used to form gelatin-coated particles to make microcapsules. The particles treated in this way can resist mechanical operation, have good oxidation resistance and good mixing performance.
Trace element additives mainly refer to mineral salts and oxides such as copper, iron, manganese, and zinc. Some of these compounds have poor water solubility, and some are easy to absorb moisture and return moisture. Appropriate pretreatment must be carried out before application to change some of their physical properties, so that they can meet the requirements of processing technology and ensure product quality. The pretreatment technologies used mainly include drying treatment, addition of anti-caking agents, coating, granulation, and pre-crushing.
5. Use high-precision premix feed production equipment
Scientific premix feed formulas must be realized by accurate metering ingredients. To ensure accurate ingredients in strict accordance with the requirements of the formula, advanced metering equipment and reasonable technology are necessary. There are very high requirements. Therefore, management and regular calibration of related equipment should be strengthened. For drugs that are added in small amounts and affect safety, such as selenium, high copper and other additives, be especially careful in metering and dilution. The catfish dog chicken cattle goat poultry premix feed mixer is the most important feed equipment for making premix. Different types of premix feeds need to choose different cattle poultry pig fish premix feed mixing machine, such as double-spiral belt premix feed mixers, double shaft paddle horizontal premix feed mixers, etc. In general, the requirements for premix mixers are:
①High mixing efficiency and short optimal mixing time;
②High mixing uniformity;
③Reasonable structure, low residue in the machine and easy to be removed;
④ Easy to load and discharge;
⑤Good airtight performance and less leakage;
6. Mix well
Feed mixing is only a physical process, but due to obvious differences in the characteristics of raw materials such as density, equipment, mixing time, and suitable carriers or diluents must be selected scientifically. The premix feed production process is as simple as possible and strives to be uniform. For a high-quality premix, all its components should be evenly distributed. Take any sample for testing, and the ratio of its multiple components should be consistent with the formula. However, due to various factors, there will be differences between different sampling and different batches. The poor uniformity of the premix means that the actual intake of the animal does not conform to the prescribed supply amount of the formula, which directly affects the added effect and the feeding effect of the compound feed, especially for some safe doses and poisoned doses. In terms of micro-components, poor uniformity may cause unsafe use, so uniformity is an important quality indicator of premix. The index to measure the uniformity is the uniformity of mixing, expressed by the coefficient of variation. Taking China as an example, the standard stipulates that the coefficient of variation should be less than 7%.
7. Introduce HACCP management system
Today, when meat food safety is more and more important, it is very necessary to introduce HACCP management system in the production of premix. Firstly, analyze the hazards that may occur in the feed production and processing process, determine the critical control points, and formulate control standards, and then implement practical and effective control measures, establish detection methods and procedures, and find out whether the control measures are consistent with the set standards. If there are deviations, take effective corrective measures, timely adjust production processing and control methods, and fully verify the HACCP system. The implementation of HACCP can improve the quality control awareness and quality control level of premix feed processing line, and will surely promote the overall improvement of premix feed production levels.
More detail of poultry chicken broiler bird cow fish duck pig premix feed production making line process，please visit https://www.cn-pellet.com/solution/feed-production-line/premix-feed-production-line.html
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