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美国International Minerals & themicals公司(IMC,在伊利诺斯州 Northbrook)计划投资5000万美元,建设大量生产重组猪促生长素(porcine somatotropin,PST)的工厂。预计在1989年春工厂建成之前,能得到美国食物与药品管理局(FDA)的认可。IMC 公司预定大量生产的重组PST是委托美国Biogen公司研究开发出来的。宾夕法尼亚州立火学动物营养学助教授 T.D.Etherton 在1987年3月召开的美国猪会议上发表了将 Biogen 公司生产的重组 PST 注射给猪的成果。据称,用 PST 后饲料效率可提高
The United States International Minerals & theyicals Inc. (IMC, Northbrook, IL) plans to invest US$50 million to build a large number of plants that produce recombinant porcine somatotropin (PST). It is expected that it will be approved by the U.S. Food and Drug Administration (FDA) before the completion of the factory in the spring of 1989. IMC plans to mass-produce the reorganization PST is commissioned by the United States Biogen research and development. T.D. Etherton, assistant professor of animal nutrition at the State of Pennsylvania, presented the results of the injection of the recombinant PST produced by Biogen in pigs at the American Pig Conference in March 1987. It is said that the feed efficiency can be improved after using PST