Chinese scientists have successfully bred partially green fluorescent pigs which they hope will boost stem cell research, Xinhua news agency said.

A research team at the Northeast Agricultural University in Harbin managed to breed three transgenic pigs by injecting fluorescent green protein into embryonic pigs, Xinhua quoted Professor Liu Zhonghua as saying.

"The mouth, trotters and tongue of the pigs are green under ultraviolet light," said Liu.

Genetic material from jellyfish was injected into the womb of a sow which gave birth to the three pigs 114 days later in Harbin, he said.

China celebrates the start of the Year of the Pig in February.