Three groups were given ordinary rat food and water with increasing doses of Roundup, reflecting various concentrations of the herbicide in the food chain.
The other six were fed rat food of which 11, 22 or 33 percent comprised NK603 corn, either treated or not with Roundup when the corn was grown.
The researchers found that NK603 and Roundup both caused similar damage to the rats' health, whether they were consumed together or on their own.
Premature deaths and sickness were concentrated especially among females. Males which fell sick suffered liver damage, developed kidney and skin tumours and digestive problems.
At the 14-month stage of experiment, no animals in the control groups showed any signs of cancer, but among females in the "treated" groups, tumours affected between 10 and 30 percent of the rodents.
法国政府本周三要求健康监管机构开展针对转基因玉米的一项调查,这有可能导致欧盟暂停进口这种转基因玉米。此前一项研究表明,转基因玉米会使实验鼠患上肿瘤。
法国农业部长史蒂芬-勒弗尔、环境部长黛尔菲那-巴多,以及社会事务部部长玛利索尔-图雷纳均表示,已要求法国健康安全局对这项研究成果进行调查。
他们在一份联合声明中说,“根据法国健康安全局的意见,政府将敦促欧盟采取一切必要措施,保护人类和动物健康。
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