还来问是不是？　

https://www.sfa.gov.sg/food-information/risk-at-a-glance/ractopamine-in-meat　

SFA has decided to adopt the maximum amount of ractopamine allowed in meat and other organs set by the CAC as the regulatory standard, after evaluating Singapore’s consumption of meat and organs against the acceptable daily intake of ractopamine established by JECFA. The maximum level of ractopamine allowed in muscle, kidney and liver for both cattle and pigs are 10 μg/kg, 90 μg/kg and 40 μg/kg respectively. Other developed countries such as Australia, Japan, Canada and USA have also adopted similar regulatory standards for ractopamine.