Along with the population growth, the increasing demand for food for humans has required the growing growth of the livestock industry and the demand for animal feed is increasing. According to Alltech 2019, in the last 5 years, the growth rate of animal feed in the world is 14.5% and in 2019 it is 3% higher than 2018, reaching 1.1 billion tons. In Vietnam, in the last 5 years, the growth rate of food production has reached nearly 10% / year. As the demand for animal feed increases, the competition between human food and animal feed is getting fiercer. Challenges to the feed industry are posed by consumers and society more and more, higher and more difficult. That is how to get enough food for humans and animals, give the animal the least food and produce the most product, the quality of the product should be high, the environment is least affected, and the rights of animals. respect.