美国一所大学的专家发明了一种能大大加快鱼类 生长的“阉”鱼技术。即采用外科手术从性成熟的鱼体内取出精巢或卵巢,经研磨制成混合溶液再注射到幼鱼体内(或用溶液添加在饵料中饲喂幼鱼)。经过这样处理的幼鱼,生殖系统受到抑制,失去了生育能力,因 Experts at a U.S. university invented a “castration” fish technology that greatly accelerates fish growth. That is, surgical removal of the testis or ovary from a sexually mature fish body is performed by grinding to form a mixed solution and then injected into the juvenile body (or the juvenile fish fed in the bait with a solution). After this treatment of juveniles, the reproductive system is inhibited, lost fertility, because