克隆羊阳阳迎来15岁生日 已成“老寿星”
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| 6月22日，在陕西杨凌西北农林科技大学克隆动物基地，对我国体细胞克隆技术发展产生重大影响的世界首批成年体细胞克隆山羊“阳阳”迎来了15岁生日。如今，早已五代同堂的“阳阳”静卧在地上，由于年老，“阳阳”满口牙齿全都掉光了，所以吃的很少，显得很苍老且无精打采。据一直看护“阳阳”的羊场工作人员介绍，一般普通山羊的寿命最高为16至18年，也就是说目前15岁的“阳阳”已算是山羊中的“老寿星”了。据了解，“阳阳”曾先后三次进京，参加过北京国际博览会、国家863高科技展，还在中央电视台做过专题节目。[中新网] Yangyang, a female goat cloned from an adult by Chinese scientists in 2000, celebrates her 15th birthday at the breeding base in Northwest University of Agriculture and Forestry Science and Technology, Xi'an, Northwest China's Shaanxi province, June 22, 2015. Goats usually have a life span of 16 to 18 years, and by this standard Yangyang can safely be called a long-lived goat. Yangyang looks listless and lacks appetite due to her age, her keeper said. Yangyang lives in a five-generation family. [China News Service] |
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