综合一区欧美国产,99国产麻豆免费精品,九九精品黄色录像,亚洲激情青青草,久久亚洲熟妇熟,中文字幕av在线播放,国产一区二区卡,九九久久国产精品,久久精品视频免费

A somatic cell-cloned calf named "Beibei" was born early yesterday morning in East China's Shandong Province, marking another breakthrough China has made in the field of cloning.

The female cloned calf was measured at 78 centimetres tall and 66 centimetres long, at a weight of 33 kilograms.

Sources with the Animal Embryo Engineering Centre of Laiyang Agricultural College in Shandong said that researchers have used ovulation embryo transfer technologies as well as a process called "vaperification" to produce Beibei.

Before Beibei, the centre had seen the successful birth of two cloned calves in November 2001, they were named "Kangkang" and "Shuang-shuang."

After inspections of the two calves revealed normal results, researchers with the centre acquired 13 embryos from the two cloned calves using the ovulation embryo transfer technology in January of this year.

The 13 embryos have all met international embryo transfer standards and then been preserved by vaperification, a technology that can freeze embryos in a short amount of time, said Dr Dong Yajuan with the centre.

Beibei was born after researchers transplanted part of the frozen embryos into the womb of a cow.

Insiders said the success of this experiment can provide technological support to the industrialization of embryo transfer technology.

Close

Today's Top News		Top National News
+Foreign Minister: ASEAN visit fruitful ( 2003-10-09) +Journalists need ethical check-up ( 2003-10-09) +Women question early retirement ( 2003-10-09) +Divisive remarks of Chen under fire ( 2003-10-09) +Natural disasters claim 1,911 lives this year ( 2003-10-09)		+Holiday 'golden' for tourism industry ( 2003-10-09) +Accession of ASEAN treaty marks trust ( 2003-10-09) +Government bans coal-fired power stations ( 2003-10-09) +Natural disasters claim 1,911 lives this year ( 2003-10-09) +Shed collapse kills 16, injures 5 others ( 2003-10-09)