日韩午夜精品视频,欧美私密网站,国产一区二区三区四区,国产主播一区二区三区四区

www.shenbo75.com

China to Produce First Cloned Giant Panda


Chinese scientists will produce the world's first cloned giant panda in one or two years, Friday's Beijing Youth Daily reported.

Chen Dayuan, a researcher with the Research Institute of Animals under the Chinese Academy of Sciences (CAS) and a team leader on giant panda cloning, explained that they were just one step away from success.

"If everything goes right, the world's first cloned giant panda cub will be produced within one or two years," said Chen.

In a speech about "cloning and ethics" at a seminar held in Beijing Thursday morning, Chen explained in great detail the giant panda cloning program.

"It is necessary to carry out research on trans-species cloning technology because it is unrealistic to carry out intra-species cloning of giant pandas due to the scarcity of the giant pandas species and a difficulty of obtaining recipient egg cells," he went on.

According to Chen, his team has cultivated an embryo using a somatic cell from a just-dead adult female giant panda, integrating it first with a rabbit egg cell and later with a cat egg cell.

Analysis shows that the embryo cultivated is definitely the embryo of a giant panda.

"The embryo has been successfully implanted in a cat womb," said Chen, who admitted that he was unsure what new problems would arise from the growth process.

"We do not intend to replace the natural propagation of giant pandas with cloning," emphasized Chen, adding that he only hoped the technology of cloning could help in rescuing the endangered species.

There are now fewer than 1,000 giant pandas living in the wild, mostly in the mountainous areas in west China's Sichuan and Shaanxi provinces.

Chinese scientists have been attempting to create more pandas through artificial propagation since the early 1960s. But artificial propagation alone has not effectively stopped their decline.

(People's Daily May 24, 2002)

In This Series

Application Procedures for Loan of Giant Pandas

China Opens Giant Panda Museum in Panda Reserve

Scientists to Help Save Giant Pandas

Cataract Operation on Giant Panda Successful

Panda Project to Bear Positive Results

Methods to Improve Propagation of Pandas

Genomic Resource Bank Built for Endangered Animal Species

12 Giant Pandas Artificially Bred This Year

Test-tube Baby Panda Experiments Under Way

References

Archive

Web Link



Copyright ?2001 China Internet Information Center. All Rights Reserved
E-mail: webmaster@china.org.cn Tel: 86-10-68326688
主站蜘蛛池模板: 东光县| 扬州市| 通江县| 原阳县| 龙陵县| 托克托县| 绥宁县| 克山县| 高密市| 杭锦旗| 商洛市| 许昌县| 花莲市| 靖宇县| 怀化市| 屯门区| 彩票| 云林县| 泸定县| 临沧市| 富源县| 厦门市| 廊坊市| 同仁县| 商水县| 静海县| 泰安市| 清苑县| 上虞市| 平罗县| 朝阳区| 舞阳县| 保靖县| 彭州市| 山东| 河池市| 台山市| 龙海市| 灵石县| 阿拉尔市| 迁西县|