日本岩手县三陆的北里大学水产系川内浩司助教授,成功地进行了从鲑鱼脑下垂体中提取生长激素的试验.提取生长激素的试验是使用从津轻石川(河流——译者)捕起的鲑鱼进行的.从约一千五百尾鲑鱼的脑下垂体中用“酸·丙酮提取法”分离提取约70克生长激素.将提取的激素注射到罗非鱼(Tilapia)体内,20天后与没有注射激素的鱼进行对比,生 A professor at Department of Fisheries, Kitasato University, Mitaka, Iwate Prefecture of Japan, succeeded in extracting somatotropin from salmon pituitary gland. The test for extracting growth hormone was used to catch up from Tsugaru Ishikawa Of salmon fish from about one hundred and fifty salmon pituitary gland by “acid · acetone extraction method” to extract about 70 grams of somatropin extracted hormone injection Tilapia (Tilapia) body, After 20 days with no injection of fish hormone contrast, students