At present, the maximum residue levels (MRL) of ractopamine in pigs and cattle formulated by the Codex Alimentarius Commission (CAC
) are: muscle 10μg / kg, fat 10μg / kg, liver 40μg / kg, kidney 90μg / kg, daily The allowable intake (ADI) is 0-1 μg / kg. Countries around the world have different regulations for the application of ractopamine in the aquaculture industry. In 24 countries and regions including the United States, Canada, Japan, Mexico, Brazil, and Australia, ractopamine can be used as a lean meat extract in livestock and poultry farming to increase the protein content and lean meat rate of animals; but in the EU, China, Russia and other countries, such drugs are completely banned in animal husbandry. The use of β-stimulant animal products is not allowed in Taiwan, China.