This undated photo shows two cloned Shaziling piglets, delivered via surrogate mother, in Xiangtan, Central China's Hunan province. [Photo/Xiangtan municipal livestock breeding station/Handout via ...

CHANGSHA -- Two cloned piglets born in Central China's Hunan province are expected to promote China's pork industry and diabetes treatment research while preserving a 4,000-year-old local breed ...

A majority of those with a birth defect died within a week of being born. While the average litter lost two piglets - with the usual litter made up of 10 babies.