Original title: The rice gene cannot be transferred to a kind of safe nutrition
Beijing Evening News (Reporter Zhang Hang) Recently, 61 academicians called for the industrialization of genetically modified rice, reigniting global discussions on the safety of genetically modified foods. According to a report from China Agricultural University, experts have completed a 90-day feeding trial on miniature pigs using genetically modified rice. The results show that GM rice is nutritionally and safely comparable to non-GM rice.
Currently, in China, only cotton, rice, corn, and papaya have received safety certificates for genetically modified crops, but they are not yet commercially available. Under the "Seed Law of the People's Republic of China," genetically modified crops must obtain production licenses, operating permits, and certification before they can be planted commercially. So far, only cotton and papaya have been approved for commercial planting, while genetically modified rice and corn remain under regulatory review.
Lin Yongjun, a professor at Huazhong Agricultural University and head of the National Major Science and Technology Project on insect-resistant transgenic rice, recently revealed that the Ministry of Agriculture has commissioned both China Agricultural University and the Chinese Academy of Medical Sciences to conduct safety tests on genetically modified rice. These include a 90-day pig feeding study and rhesus monkey trials.
Professor Huang Kunlun from the College of Food Science and Nutritional Engineering at China Agricultural University confirmed that the pig feeding trial for BT gene-resistant rice has been completed. The findings indicate that there are no significant differences in nutritional value or safety between genetically modified and non-genetically modified rice. He explained that pigs are often used in biomedical research due to their physiological similarity to humans, making them an ideal model for assessing the safety of GM rice for human consumption.
During the 90-day test, pigs fed both types of rice showed similar growth indicators, including body weight, length, chest circumference, and height. Blood tests and organ assessments also showed no significant differences, with all pigs developing normally. No pathological changes were observed in the heart, liver, kidneys, or reproductive systems. This supports the conclusion that GM rice is as safe and nutritious as its non-modified counterpart. These results align with previous studies on rats.
Huang explained that safety assessments are crucial before any genetically modified crop can enter the market. Since the commercialization of GM crops began in 1996, their global planting area has grown by about 10% annually, reaching 170 million hectares by 2012. Despite this, concerns over safety have persisted. Therefore, rigorous testing in nutrition, toxicology, and allergenicity is required before approval for large-scale production.
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