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转基因三文鱼首次登上人类餐桌

2017-08-07 07:02:25   中国青年网

本报综合消息

该公司首席执行官Ron Stotish说,第一批商品转基因三文鱼的市场价格为5.90美元/磅(0.45公斤)。此种转基因三文鱼原是一种普通的大西洋三文鱼,一般只在春夏季节的温暖水流中发育生长,3年左右才能长大上市。研究人员对其植入了两种基因,一种是太平洋奇努克三文鱼的生长激素基因,另一种是大洋鳕鱼的抗冻蛋白基因。大洋鳕鱼是绵鳚科的一种,血液中含有抗冻蛋白,可以在冰封的寒带海域生存。转入了这两种基因后,即便在寒冷情况下转基因三文鱼也能快速生长,只要18个月就能长大,而且个头也比同类非转基因三文鱼要大,因而可以更快、更多地满足人们的消费需求。

Stotish说,如今转基因三文鱼正在进入加拿大人的餐桌,这次的声明肯定也会再次引起反对。由于转基因三文鱼生长在陆地封闭的孵化场中,所以不会遇到许多经常殃及海洋中网箱养殖三文鱼的病原体和寄生虫。

AquaBounty Technologies公司在加拿大爱德华王子岛的养殖场孵化鱼卵,在巴拿马的陆地水箱中饲养。该公司还计划在加拿大爱德华王子岛再扩建一个场地,该计划已于今年6月得到地方当局同意建设的批准。

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