Talks on the issue ended Tuesday with EU member states and the European Parliament each blaming the other, EUobserver reported.
Both had agreed on the need to ban all food products from cloned animals, but failed to reach agreement on the issue of labeling food products from the offspring of cloned animals.
Members of the European Parliament insisted on the need to immediately cover all products under the additional labeling requirement while member states were concerned that onerous new rules would be difficult to enforce.
"Measures regarding clone offspring are absolutely critical because clones are commercially viable only for breeding, not directly for food production," Socialist MEP Gianni Pittella and far-left MEP Kartika Liotard said in a joint statement after the talks broke down.
"No farmer would spend 100,000 euros ($141,000) on a cloned bull, only to turn it into hamburgers," the two MEPs leading parliament's negotiating team said.
Meanwhile, the scientist behind the first mammal to be cloned from an adult cell, Dolly the sheep, said cloning for food is hard to justify.
"If you were making cloned animals to make a genetic change to produce a protein that could treat human disease, that might be ethically acceptable," Ian Wilmut of Edinburgh University said.
"On the other hand, if you were producing more meat, or slightly better quality meat, the advantage would not be very great."
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