How to prevent feed from mold

1. Selection and cultivation of antibacterial feed crop varieties. Different feed crops have different susceptibility to mold. Therefore, the selection and cultivation of antibacterial feed crop varieties can reduce the damage of mold, which is also a direct way to prevent mold. The gradual expansion of bio-gene engineering can be used to cultivate anti-bacterial feed crop varieties. Lpq China Feed Industry Information Network - based on feed, serving animal husbandry

Second, choose scientific planting and harvesting techniques. Tests have shown that 80-90% of Aspergillus flavus isolated from peanuts can producemycin, which is higher than that of Aspergillus flavus isolated from other crops. Therefore, in the continuous planting of peanuts, peanuts are highly contaminated by Aspergillus flavus, and the content of aflatoxin is also high. The broken peanuts are easy to contaminate Aspergillus flavus and also facilitate the formation ofmycin. Planting techniques and scientific harvesting methods can reduce mycotoxin contamination. In addition, during the harvesting, storage and transportation process, insect bites, groin, and grinding should be avoided to avoid damage to the epidermis and outer shell of corn, peanuts and other grain feeds, and the broken kernels should be removed. Lpq China Feed Industry Information Network - based on feed, serving animal husbandry

Third, strictly control the moisture content of the stored feed. The main factors causing mildew in feed are humidity, temperature and oxygen concentration. If the humidity can be controlled, the mold can be effectively prevented. Under normal circumstances, it is the easiest way to store moisture below the safety line. Therefore, the feed crop should be dried quickly after harvesting, and the dryness must be consistent. The moisture in the rice should be controlled below 13%, the corn below 12.5%, and the peanut below 8%. Lpq China Feed Industry Information Network - based on feed, serving animal husbandry

Fourth, improve storage conditions and inhibit mold growth. Most of the mildew of the feed occurs during storage and transportation. Therefore, the use of mildew proof technology during storage and transportation is an important measure to prevent mildew in feed. Lpq China Feed Industry Information Network - based on feed, serving animal husbandry

1. Physical anti-mildew method. Mainly: control the temperature of the storage environment, closed oxygen storage, controlled atmosphere storage, low temperature ventilation storage and radiation method. According to the test, the threshed corn was placed in a lined plastic bag, and the bag mouth was filled as much as possible. Due to the respiration of corn itself, the oxygen in the bag is consumed. Not only is aflatoxin difficult to grow, but other molds are also restricted, which is an economical and simple method for preventing mildew. Nowadays, the low-temperature ventilation storage method is commonly used, and the combination of low temperature and mechanical ventilation is adopted to make the feed reach the safe moisture content, which is not only suitable for granular feed, but also has obvious application effect on powder with high moisture content. With the development of food radiation technology, radiation treatment will be applied to the storage of feed. Lpq China Feed Industry Information Network - based on feed, serving animal husbandry

2. Chemical anti-mildew method. It is to add anti-fungal agents to the feed. This method is suitable for dry feed production enterprises. As a feed anti-mold agent, it must not only inhibit the mold, but also be harmless to humans and animals, easy to use, reliable and inexpensive. Commonly used as antifungal agents are propionic acid and its salts, sorbic acid and its salts, sodium diacetate, ethoxyquin, fumaric acid, photohydroacetic acid, gentian violet, dimethyl fumarate, etc. . At present, the most used feed producers are propionic acid and its salts, followed by sorbic acid and its salts. For example, acetic acid treatment: the main role of acetic acid is to inhibit the biosynthesis of AF (succinate transaminase). The acetic acid is formulated into a 9-15% aqueous solution, and the solution is added in an amount of 3.5% of the fresh peanuts, mixed well with the peanuts, and stored in a polyethylene bag at 28-30 ° C and a relative humidity of 100%, within 90 days. Biosynthesis without AF. Lpq China Feed Industry Information Network - based on feed, serving animal husbandry

3. Comprehensive law. Enzymes and antioxidants, as antifungal agents, are new high-efficiency antifungal agents that have emerged internationally in recent years. Different from the anti-mildew principle of chemical anti-fungal agent, its principle of action is to replace the enzyme system in the mold with an enzyme, and to prevent the normal oxygen absorption of the mold by the antioxidant, thereby hindering the normal physiological function of the mold and achieving the anti-mildew effect. The enzyme used is 100-500 times stronger than the enzyme in the mold. When it is applied to the mold, the enzyme in the mold is destroyed and denatured, so that the mold can not absorb nutrients from the feed, plus the role of antioxidants, mold Sufficient oxygen is not available to inhibit its growth. Mold will not be resistant to this anti-fungal agent, and it is safe and reliable to use and has no adverse effects on the outside world. Lpq China Feed Industry Information Network - based on feed, serving animal husbandry

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