
Giant panda Mei Xiang at the Smithsonian’s National Zoo. (Skip Brown/Smithsonian’s National Zoo)
From Smithsonian’s National Zoo:
“A team of reproductive scientists, veterinarians and panda keepers at the Smithsonian’s National Zoo and Conservation Biology Institute performed an artificial insemination on giant panda Mei Xiang (may-SHONG) yesterday evening, March 28 at 9 p.m.
Scientists and keepers had been closely monitoring Mei Xiang’s behavior and hormones since she began displaying behavioral changes March 15, indicating she was entering her breeding season. Daily hormone reports showed Mei Xiang’s estrogen levels peaked the evening of March 27, which means she was ovulating and able to become pregnant. Female giant pandas are only in estrus, or able to become pregnant, for 24 to 72 hours each year.
Since the window when a giant panda can conceive a cub is so short, the Zoo’s panda team performed an artificial insemination on Mei Xiang. They artificially inseminated her using fresh semen from Tian Tian (t-YEN t-YEN) for the procedure. (more…)