Microecological preparations, enzyme preparations and natural plant extracts are the most promising new feed additives at present, but the preparation process still needs to be perfected, the quality standards need to be unified, feed additives on animal nutrition and physiology, intestinal micro-ecology, immune function Research on the effects of such factors and their mechanisms needs to be strengthened. It is an inevitable trend for the development of additives to make full use of low-quality, low-cost, wide-ranging feed resources that humans cannot directly use, and to introduce modern biotechnology transformation and large-scale preparation of new bio-sourced feed additives with technical content.
Feed additives are divided into nutritional additives and non-nutritive additives. Their basic functions are to maintain animal health, promote animal growth, and improve various animal performance. In order to pursue economic returns, in the past, the role of feed additives in promoting animal growth has been over-emphasized, while ignoring the long-term hazards such as drug residues and pathogen resistance caused by animal products. With the ban on the use of hormones and antibiotics as feed additives in the EU, the United States and other regions and countries, especially since China's accession to the WTO has increased the pressure on food safety and environmental protection, the development of new safe feed additives has received increasing attention. A new feed additive newly developed by O-Phosphorylethanolamine. Safe feed additives should have no drug residues in the animal production process, no toxic side effects, no harm to animal production, and animal products are harmless to human health; animal waste does not pollute the environment. The new feed additives that have been developed and are being developed mainly include microecological preparations, enzyme preparations, low molecular weight sugars, and Chinese herbal preparations. In order to rationally develop and apply these new additives, it is necessary to make a comparative analysis of their respective development prospects and practical application effects.