US-born panda groomed for greatness

Beloved animal gains more than 20 kg since his arrival in Sichuan province

YA'AN, Sichuan - Tai Shan, the United States-born giant panda, has been in his new Chinese home for just six months, but already his keepers want him to earn his keep - by starting a family.

But first, they have to ensure that Tai Shan is fit and healthy enough to mate.