Two leading panda breeding organizations in Sichuan province jointly issued videos with 24 newborn pandas on Tuesday to celebrate the Lunar New Year, which falls on Saturday.

In the videos, 14 keepers from the China Conservation and Research Center for the Giant Panda and 10 of their counterparts from the Chengdu Research Base of Giant Panda Breeding held pandas born last year, wishing all their viewers well during the Year of the Dragon.

It has been a tradition for both the center and the base to show newborn pandas to visitors on major holidays, said Qiu Yu, an information officer with the center.

Thirty-four pandas were born at the center and base last year, but 10 were not shown in the videos recorded on Sunday, he said.

The global captive panda population stands at 728, with 46 born last year in China and overseas, said Zhang Yue, deputy director of the wildlife conservation department of the National Forestry and Grassland Administration, at a news conference on Jan 25.

China began artificially breeding pandas in the 1960s. At the beginning of this century, it resolved three major panda breeding problems, and the captive population gradually expanded, he said.

It used to be difficult for captive pandas to become ruttish and mate, and for their cubs to survive, said Zhang Hemin, a senior panda expert who started studying the bears in 1983.

At first, researchers did not have a correct understanding of the habits of pandas.

Thinking they preferred a solitary life, researchers kept each panda isolated in a tiny den and only fed them bamboo.

Pandas in a captive environment became depressed and had difficulty becoming ruttish.

Researchers decided to start giving captive pandas more opportunities to socialize.

Male and female pandas were soon placed into each other's dens so that each would become familiar with the scents of the opposite sex.