美国科学家在经过基因修饰的玉米中发现了一种如同鸡蛋清中含有的一种蛋白质—抗生脘(Avidin)。美国农业研究局化学家Karl J.Kramer及同事已经证明,这种蛋白质是一种强有力的生长抑制剂。生物素是害虫生长发育所必需的,而抗生脘能够限制生物素的利用效率,使害虫停止发育而死亡。在鸡蛋清中抗生脘可能起类似的作用—保护鸡的胚胎免受致病有机物的侵害。作为生物杀虫剂,抗生脘好于玉米中的Bt菌,因为它能给更广谱的害虫以 American scientists discovered a protein that is found in genetically modified corn, like avidin, in egg white. American Institute of Agricultural Research chemist Karl J. Kramer and colleagues have shown that the protein is a potent growth inhibitor. Biotin is necessary for the growth and development of pests, and antibiotics can limit the utilization of biotin efficiency, so that pests stop development and death. Antibiotics may play a similar role in egg whites - protecting chicken embryos from pathogenic organisms. As a biopesticide, antibiotics are better than Bt in corn because they give a broader spectrum of pests