1 Background In recent years, with the increasing emphasis on feed safety and food safety, people have a deep understanding of the adverse consequences of antibiotic feed additives, and the feed industry is increasingly cautious and standardized on the use of feed additives. In 2015, after the introduction of the new “Environmental Law†and “Food Safety Law†in the “most strict historyâ€, issues such as “healthy farming, food safetyâ€, “antibiotic substitution†and “post-antibiotic era livestock and poultry health†were Pushing the cusp of the cusp, "no anti-resistance", "environmental diet", "cleaning diet" and other compliance with the development of the times, the diet representing the trend of feed development gradually occupied the mainstream. 2 Traditional definition of green feed additives The word “green†is derived from food, meaning that the procedures from the soil to the people's table are strictly controlled. Only products with a growing environment, production process, and packaging quality that conform to the specifications can be called. It is "green food." With the development of society and the improvement of people's quality of life, feed additives for animals have also begun to seek green, healthy and environmentally friendly. Green additives in livestock and poultry feed include: microecological preparations, enzyme preparations, Chinese herbal medicines, oligosaccharides, antimicrobial peptides and plant extracts. Green feed additive refers to a product added to the feed to improve the palatability and utilization of the feed, inhibit the infection of harmful bacteria in the gastrointestinal tract, and enhance the disease resistance and immunity of the body. These products, regardless of the length of use, will not produce toxic side effects and harmful substances, and can improve the quality and quality of livestock and poultry products, which is beneficial to consumers' health and will not cause pollution to the environment. 3 Attribute characteristics of green feed additives "It is a three-point drug", and additives are no exception. Low-dose, long-term addition of inferior additives or chemicals not only poisons livestock and poultry, but also causes environmental pollution when residues are removed from the body, thus potentially harmful to human health. . The author has been focusing on the research, development, promotion and application of green natural extracts. Based on years of market experience, I believe that only the following attributes can be called green feed additives: 3.1 This is the "blood" of green feed additives. It is not a green product that is a green feed additive, nor a product derived from green plants is a green feed additive. The Ministry of Agriculture has strict regulations and restrictions on green feed additives and their sources. The products must have the approval and number of the Ministry of Agriculture. There is the certification of China Green Office, and further said that the environment of the production area should also meet the standard, that is, the air, soil, water source and other indicators of the production area must meet the prescribed standards, and the “pure†of green feed additives should be guaranteed from the source. 3.2 Ecological This is the "heart" of green feed additives. Hong Kong's "Oriental Daily" reported on February 23: In 2013, China's antibiotic use amounted to 162,000 tons, accounting for half of the world's total consumption, of which 52% for veterinary use, 48% for human use, and more than 50,000 tons per year were released. In the natural environment. Researchers at Shanghai Fudan University collected nearly 5,000 urine samples from children in Jiangsu, Zhejiang and Shanghai, and found that nearly 80% of the body had at least one antibiotic. At the same time, the researchers further analyzed and confirmed that the widespread use of antibiotics in animals in the environment is closely related to childhood obesity. Children exposed to low-dose antibiotics left in the environment for a long time, which indirectly promotes lipogenesis. Antibiotics or inferior additives are not only harmful to livestock and poultry. If they are not fully metabolized into the environment, they will pollute the air, soil and water sources we rely on to harm our bodies. It sounds like a joke, but it is a reality of eyesight. We use antibiotics or inferior additives, use livestock and poultry as an intermediate, and then endanger ourselves, forming a vicious circle. Therefore, in accordance with the concept of “respect for nature and recycling developmentâ€, green feed additives should not only be added to the diet, but also harmless to animals. Even if they are not fully utilized and degraded, they will be excreted into the environment and will not cause harm to the environment. It does not affect the purity of air, soil and water. 3.3 Value This is the “face†of green feed additives. Any kind of feed additive, whether it is to promote the growth of livestock and poultry, to ensure the health of the body, to improve the body's immunity, or to improve the carcass quality of livestock and poultry, should have a clear value, and can not only rely on the concept of speculation, to be able to It is actually bringing practical benefits to the farm, feed mill or consumer. This kind of benefit should be directly reflected in the livestock or in the feed, and can be captured by us through the senses, such as improving the selling phase to make the animal's coat smooth. To improve immunity, the animal is full of energy, and the quality is improved to make the product taste better. If there is no "value" support, any feed additive product will become a wood without a foundation. If it is barely accepted by the user, it will be removed immediately if it does not meet the user's expectations. 3.4 Standardization of This is the “limb†of green feed additives and an essential part of its journey. First, there must be corresponding sensory, physicochemical and biological standards. Users can be identified through sensory, chemical analysis and even biological means. Second, there are strict regulations on the use of objects, application range, dosage and compatibility, and cannot be blind. Abuse; third, the corresponding standards have been formulated in the packaging, transportation and storage to protect them from pollution and affect the effect. In a word, green feed additives should be “controllable and measurableâ€, which can be quantified and controllable, so that “there is a law to follow, and there are laws to followâ€, so that users can clearly understand and use clearly. 4 Eucommia's past and present "Compendium of Materia Medica" records: "In the past, there was a Du Zhong service to get this into a fairy, because of the name." According to legend, there was a doctor named Eucommia in the ancient times who often helped the poor. One day he went to the mountains to collect medicine. Occasionally, he saw a number of white silk "bone bones" like "gluten" in the bark of a tree. He wants people to eat this "bone and bone", will be as strong as a tree? So, he made up his mind to try, a few days later, not only no adverse reactions, but consciously spirited, waist and legs are relaxed, he took After a while, the result of the miracle appeared, not only light and healthy, black hair, but also became a fairy. When people know this kind of plant, they call it "Sixian" and "Sizhong", and then simply call it "eucommia". In the Eastern Han Dynasty, the "Shen Nong's Herbal Classic" divided the drugs into "upper, middle and lower" products by "supporting life, nourishing and treating diseases". The top grade is non-toxic, the middle product is less toxic, the lower product is more poisonous, and the eucommia is non-toxic. And listed as the top grade, "Compendium of Materia Medica" also records: "Duzhong young leaves are edible." Since ancient times, the skin and leaves of Eucommia ulmoides are the best products of medicine and food. They are also the first choice for liver and kidney, waist and knee, detoxification and strong bones. Now Eucommia ulmoides can be used as medicine, Eucommia ulmoides can prevent disease and cure diseases, Eucommia seed oil and male flowers have also been included in the new resource food by the Ministry of Agriculture. In 1992, Professor Takahashi of the University of Japan fed the squid with Eucommia leaves and found that the neutral fat of Eucommia ulmoides was reduced by more than 20%, the collagen was increased by 1.3 times, and the muscle cell components were increased by 1.6 times. Feeding broilers reached The same effect as the squid, the taste is soft and tender; feeding the laying hen can increase the egg production rate of the aged chicken by 28% and the cholesterol content of the egg by more than 20%. Jiangxi Duzhong Yinhe Company used pigs to feed pigs with eucommia leaves, and the 18% amino acid content in pork increased by more than 20%. 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