1. Insect pests are contaminated.
Insect pests can cause loss of feed nutrients or leave toxins in the feed. In the case of suitable temperature and high humidity, mites are more harmful to feed. Rodent damage not only causes loss of feed, but also causes feed pollution and spreads diseases.
2. Microbial contamination.
The feed breeds harmful microorganisms such as Aspergillus flavus, Gibberella and Fusarium, which produce toxins such as aflatoxin, gibberellin and gibberellin which are harmful to livestock and poultry. Among them, aflatoxin is the most toxic.
3. Anti-nutritional factor pollution.
Anti-nutritional factors in feed mainly include protease inhibitors, carbohydrate inhibitors, mineral element bioavailability inhibitors, antagonistic vitamin action factors, and stimulating animal immune system action factors. Their presence can interfere with the digestion, absorption and utilization of feed nutrients by livestock and poultry.
4. Harmful chemical contamination.
It mainly includes three types of harmful chemical substances such as pesticide pollution, industrial “three wastes†pollution, and nutritive mineral additive pollution.
5. Non-nutritive additive contamination.
The effects of antibiotics, hormones, antioxidants, anti-mold agents and sedatives have a great effect on preventing diseases, improving feed utilization and growth rate, but if the principles of use are not strictly adhered to and the safe use and withdrawal time are controlled, the drugs and Its metabolites remain in meat, eggs, and milk, and pollute the environment through livestock waste.
6. Cross-contamination of poisons generated during processing.
Improper control of the processing technology, complex additives in the feed in the special processing such as crushing, conveying, mixing, granulating, puffing, etc. will undergo degradation reactions, redox reactions, etc., to produce some complex compounds.
In addition, contaminant contamination in feed production is also an important factor affecting feed hygiene and quality. Therefore, in the process of feed processing, care should be taken to clean the equipment to avoid decomposition and residue of the feed during transportation and mixing.
UV accelerated aging test chamber
A UV accelerated aging test chamber is a specialized piece of equipment used to simulate the effects of long-term exposure to ultraviolet (UV) radiation on various materials and products. It is commonly used in industries such as automotive, aerospace, cosmetics, and electronics to evaluate the durability and performance of materials under accelerated aging conditions.
The chamber typically consists of a controlled environment with UV lamps that emit high-intensity UV radiation, simulating the UV exposure that materials would experience over an extended period. The UV lamps produce a spectrum of UV light, including UVA, UVB, and UVC, which can be adjusted to mimic specific environmental conditions.
The test specimens or products are placed inside the chamber, and the UV lamps are turned on to initiate the aging process. The chamber may also incorporate other environmental factors such as temperature, humidity, and airflow to simulate real-world conditions more accurately.
The accelerated aging process allows manufacturers to assess the effects of UV radiation on the materials' physical, chemical, and mechanical properties. It helps determine the degradation, discoloration, embrittlement, cracking, or other changes that may occur over time due to UV exposure.
UV accelerated aging test chambers are essential for quality control, product development, and compliance with industry standards and regulations. They enable manufacturers to evaluate the performance and lifespan of materials, optimize formulations, and make informed decisions about product design, materials selection, and UV protection measures.
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