The Daily Item, Sunbury, PA

News

September 5, 2013

National Zoo: 2-week-old panda cub is female

WASHINGTON — It's a girl!

The Smithsonian's National Zoo announced Thursday that its 2-week-old giant panda cub is female and her father is National Zoo panda Tian Tian.

Panda mother Mei Xiang was artificially inseminated with sperm from Tian Tian, as well as a panda named Gao Gao at the San Diego Zoo. It takes time to determine a cub's gender, and a DNA sample was collected to determine the paternity of the cub born Aug. 23.

A second stillborn cub delivered a day later was also female and also sired by Tian Tian, officials said. The cubs were fraternal twins.

Keepers performed a den check Thursday morning and all the signs show that the mother and cub continue to be healthy, Senior Curator Brandie Smith said. The cub also is starting to develop dark markings in her fur around the eyes, ears and back.

"It's got a fat little belly. It's very active. It's very vocal," Smith said. "If it needs anything, it definitely lets Mei Xiang and the rest of us know that it needs something."

Zookeepers were able to perform one quick physical examination of the cub when it was 2 days old. Since then, Mei Xiang has become more protective and hasn't allowed humans to grab her cub again.

The 10-day mark was critical for survival, Smith said. At that point, keepers started to gain more confidence about the cub's health.

"We watch her grow stronger and healthier every single day," Smith said. "So we're finally starting to really celebrate."

China owns the pandas at the National Zoo. The cub is expected to stay with her mother for a little more than two years until she is weaned and will stay at the zoo for about four years. Mei Xiang's only other surviving cub, a male named Tai Shan, was born in 2005 and was returned to China in 2010.

Mei Xiang gave birth to a cub last year after several years of failed breeding, but the cub died after six days. Its lungs hadn't fully developed and likely weren't sending enough oxygen to its liver.

Having a successful panda birth now, after years when Mei Xiang and Tian Tian failed to reproduce, has already given zoo scientists new confidence in the Washington pandas' reproductive health. The zoo had considered swapping out one or both of the pandas for a more viable pair.

"It's a confirmation that Mei Xiang is a really healthy female and of course a healthy mother," said Smithsonian Reproductive Biologist Pierre Comizzoli.

Giant pandas are considered critically endangered in the wild. Breeding them in captivity has proved difficult, especially in Washington. The new cub's gender, though, does not have a significant impact on the survival of the species, Smith said.

"Because the population is so small, every single animal is important," she said. "So males or females, just getting numbers on the ground is what's important."

Following Chinese tradition, the cub will be named after it is 100 days old.

Four American zoos have giant pandas, and several cubs have been born in the United States. But the bears hold a special place at the National Zoo. China gave the zoo its first set of pandas in 1972 to commemorate President Richard Nixon's historic visit to the country, and pandas have remained a symbol of diplomacy between the two countries.

The zoo's first panda couple, Ling Ling and Hsing Hsing, had five cubs during the 1980s, though none lived more than a few days.

 

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