Could genetically engineered farm animals release genes into wild populations?
The question heads the list of concerns in a new report on biotechnology which, conversely, argues that there is no evidence as yet that cloned livestock are unsafe to eat. The report, produced by the National Academy of Science at the request of the American Food and Drug Administration which is preparing legislation on cloned cattle, raises science-based concerns regarding animal biotechnology. As is the case with any new technology, it is almost impossible to state that there is no concern, and in certain areas of animal biotechnology we did identify some legitimate ones, said John Vandenbergh, chair of the committee appointed by NAS. The committees greatest concern is the potential for bred animals to escape and reproduce in the natural environment. GM insects, fish and animals that can escape easily and become feral are especially of concern, particularly if they are more successful at breeding and competing for food. On the other hand, genetic engineering can have adverse effects
