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.
Above Counter Pressed Kitchen Sink
Stainless steel sink is a best optimization for the kitchen use with best durability and addorability. Stainless steel pressed topmount single and double bowl sink can provide the kitchen user more room to finish different cleaning jobs at the same time, and make job more organized with stainless steel sink with double . And its different installation ways like undermount, top mount, drop in, and apron front can satisfy your kitchen cabinet design needs. A good stainless steel sink can make your kitchen life more easy and with pleasure!
Pressed Kitchen Sinks,Above Conter Pressed Kitchen Sink,Topmount Pressed Kitchen Sink
Guangdong Huayou Hardware Products Co.,Ltd , https://www.gdhuayouhardware.com