亚洲人成网站18禁止中文字幕,国产毛片视频在线看,韩国18禁无码免费网站,国产一级无码视频,偷拍精品视频一区二区三区,国产亚洲成年网址在线观看,国产一区av在线

Tools: Save | Print | " target="_blank" class="style1">E-mail | Most Read
Dame Panda to Set New Breeding Record
Adjust font size:

Twenty-year-old giant panda Qing Qing is expected to set a new record in giving birth this autumn after she has been found to be still sexually active.

Qing Qing, born in 1984, had already produced a record 13 offspring, including four sets of twins, in nine births since 1989, said Yu Jianqiu, deputy head of the giant panda breeding and research center in Chengdu, capital of southwest China's Sichuan Province.

 

Qing Qing gave birth to her 13th baby in September last year.

 

Yu said the center had included Qing Qing on the list of giant pandas expected to give birth this year. Researchers found Qing Qing had been oestrus since the beginning of spring.

 

A female giant panda can become pregnant once a year and give birth to at least one baby each time. It becomes sexually mature at the age of four or five, and becomes infertile when it is about20.

 

Yu said Qing Qing was expected to become pregnant naturally, but if this was unsuccessful, researchers would help her through artificial fertilization.

 

Chinese zoologists have been successful in improving the birth rate of giant pandas in captivity, with over 90 percent of artificially-bred pandas surviving.

 

Giant pandas are believed to have been around during the time of the dinosaurs. The rare creatures are regarded as "state treasures" by the Chinese people.

 

About 1,000 giant pandas still live in the wild, mostly in the high mountains around the Sichuan Basin, and 140 live in captivity. 

 

(Xinhua News Agency March 1, 2004)

Tools: Save | Print | " target="_blank" class="style1">E-mail | Most Read

Related Stories
 
SiteMap | About Us | RSS | Newsletter | Feedback

Copyright ? China.org.cn. All Rights Reserved E-mail: webmaster@china.org.cn Tel: 86-10-88828000 京ICP證 040089號

    1. <ul id="556nl"><kbd id="556nl"><form id="556nl"></form></kbd></ul>
      <thead id="556nl"></thead>

      1. <em id="556nl"><tt id="556nl"></tt></em>
        <ul id="556nl"><kbd id="556nl"><form id="556nl"></form></kbd></ul>

        <ul id="556nl"><small id="556nl"></small></ul>
        1. <thead id="556nl"></thead>

          亚洲人成网站18禁止中文字幕,国产毛片视频在线看,韩国18禁无码免费网站,国产一级无码视频,偷拍精品视频一区二区三区,国产亚洲成年网址在线观看,国产一区av在线 人妻无码久久影视 日韩久久久久久久久久久久 精品国产香蕉伊思人在线 无码国产手机在线a√片无灬 91在线视频无码