https://web-archive-2017.ait.org.tw/zh/beef-fact-20120326.html
Ractopamine is a safe and effective U.S. Food and Drug Administration (FDA)-approved feed supplement that has been used by hog and beef producers for many years to produce leaner meat more efficiently
In an effort to meet growing global demand for U.S. pork, Tyson Fresh Meats, the beef and pork subsidiary of Tyson Foods, Inc. (NYSE: TSN), today announced plans to prohibit the use of ractopamine in
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