2020-11-06 Back to List
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The main factors affecting the safety of chicken feed pellet include the quality of feed raw materials, the safe storage of feed raw materials, the control of the quantity of various additives in formula, the control of artificial addition in processing, the reasonable design of turn-key poultry chicken feed pellet production line processing technology and the proper selection of the chicken feed machine parameters, chicken feed production process management and feed storage management after processing. Only strict control of the manufacturing process of each link, can produce safe poultry chicken feed.
1.Control and safe storage of raw materials
Chicken feed raw material is the first control point to produce safe feed. Some poultry chicken pellet feed plant raw materials use large amount of pesticides because of insect pests, causing pesticide residues greatly exceed, so chicken feed mill factory should strengthen the detection of pesticide residues when receiving the raw materials. In addition, the waste water and waste gas discharged from industrial production also cause serious pollution to chicken feed raw materials.
The moisture of chicken feed raw material is the key to safe storage. Especially, some newly harvested plant materials cannot reach the standard of safe storage. In the process of storage, the raw materials are easily polluted by mould and produce a large amount of mycotoxin, which makes the quality of feed worse. Therefore, it is the most effective and active method to improve the storage conditions of raw materials and control the moisture of feed materials (the safe moisture is below 12%), as far as possible to reduce the contamination of mould. Many raw materials cannot be quite dry due to economic reasons. Using mildew inhibitor to control the growth of mould is an effective measure. However, the mildew inhibitor cannot remove the mycotoxin in the raw material, so it is necessary to take the mold control measures as early as possible before the mould contamination occurs.
At present, due to the shortage of poultry chicken feed raw materials, the adulteration of raw materials is very serious, bringing trouble to safe chicken poultry feed plant production. Therefore, when receiving raw materials, we must use strict tests to confirm if they meet the quality standards, and resolutely put an end to unqualified raw materials entering the chicken feed factory.
Most of raw material in feed is corn, which is usually stored in silos, especially in the steel silo. Due to the large day-and-night temperature difference, it is easy to cause moisture evaporation and the condensation of water vapor, the water content of some raw materials near the silo wall is high, and the long storage may cause mould. Therefore, we should strengthen the management of raw materials in silo and reduce the moisture of raw materials to ensure the safety of raw materials.
2.Cleaning of raw materials
In the production process of complete chicken feed processing plant, people often pay attention to the cleaning of large impurities and magnetic impurities in feed materials to ensure the safety of feed processing equipment, but the cleaning of small impurities often ignored. These small impurities are complex. It is a place for various harmful microorganisms to grow. When the moisture and temperature of raw materials are suitable for their growth, the nutrition of the raw materials is the culture medium, which makes it grow fast and produces a large number of harmful substances, posing a threat to the safety of feed. Therefore, small impurities should be removed in feed production to ensure the safety of feed and the quality of products.
3.Control of harmful components in raw materials
The raw materials used in chicken feed making are quite complex, and some have natural toxic substances, such as alkaloids, free gossypol, tannin and protease inhibitors in plant raw materials. Ammonia, thiamine in animal raw materials, and blood, fat, bone powder or meat-bone meal of mammals are harmful to chicken animals. Therefore, such raw material should be controlled according to the actual needs, we should use detoxified cake meal or control dosage for cotton and rapeseed meal. (Meat-bone meal is prohibited in ruminant feed pellet).
4.Control of various additives in the chicken feed formula
In addition to meeting the production performance requirements of poultry chicken, feed formula should be in accordance with the national standard of health, and the relevant laws and regulations of the state in the field of feed should be carried out. In order to save the cost of poultry chicken feed production line process and make full use of chicken feed resources, some unconventional feed ingredients are added. When using these raw materials, we must first ensure its safety, and take precautions against certain toxic materials.
With the development of biotechnology, the chicken feed proportion of genetically modified crops and its by-products is increasing gradually. High-oil corn, high lysine corn, low poisonous rapeseed meal and high methionine soybean have been used in feed production. These transgenic plants are used as feed ingredients, however, its effect on animal health and safety of animal products has not reached a consistent conclusion. Therefore, we need to be cautious when choosing genetically modified products as feed ingredients.
5.Artificial addition control
In order to add some small amounts of material, reduce the number of feed silos and save the cost of investment, we usually design artificial addition inlet. It is reasonable for chicken feed pelletizing line production process design. But mistakes in manual addition may pose a threat to safe feed production. In order to ensure the accuracy of manual addition, sound control technology and photoelectric combination method can be used to control additives in chicken feed plant process design. This technology can prevent additives from being missed or added repeatedly, and at the same time, management should be strengthened to prevent manual metering errors.
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