BBC News Online: World: Asia-Pacific

Scientists cross pigs with spinach

The GM pigs produced less fat than normal

Researchers at Kinki University near Osaka inserted genetic material from spinach into a pig, which they say will produce healthier pork.

Research team leader Akira Iritani said the pigs with the spinach gene had produced less fat than normal.

"It is confirmed for the first time in the world that a plant gene is functioning properly in a living mammal, not in a cultured cell," said Professor Iritani.

Safety issues

The experiment involved inserting the spinach gene into a fertilised pig egg, which was then implanted in a female pig's womb to produce genetically modified piglets.

The FAD2 gene was found to convert about a fifth of the piglets' saturated fatty acids into healthier linoleic acids.

Professor Iritani said he hoped to prove the genetically modified pork was safe to eat.

"I know genetically modified food has met poor public acceptance, but I hope safety tests will be conducted to make people feel like eating [the GM pork] for the sake of their health," he said.

Professor Iritani said only about 1% of GM piglets survived after being born, although breeding among GM pigs would ensure the spinach gene was passed on.