Healthy and active children of cloned goats

Introduction: at the special animal husbandry exhibition of the 8th Yangling agricultural hi tech achievement Expo, a pair of healthy and lively "longfengfetal" goats "Huanhuan" and "Qingqing" were particularly noticeable Their mother was the first batch of somatic cloned goats "Yangyang" in the world The smooth birth of the two little guys proves to the world that Yang Ling is the base of animal cloning in China and China is a powerful country in animal cloning technology Earlier this year, "Yangyang" naturally mated with a cloned embryo goat born in 1995 On August 8, Yangyang successfully gave birth to a pair of "dragon and phoenix" goats At that time, "Yangyang" was just one year old The success of natural mating and breeding between Chinese cloned sheep and cloned sheep has created a world miracle Animal cloning technology is known as "biological atomic bomb" by biological scientists, and countries are competing for development Animal cloning technology includes embryo cloning and somatic cell cloning Compared with that, somatic cell cloning is more difficult It is to take a little tissue from the adult animal body, separate a cell, transfer the nucleus to the enucleated egg to form a cloned embryo, and then transfer it to the animal receptor for pregnancy and childbirth Mature animal cloning technology is widely used in biology, animal husbandry, animal medicine and medical experiments, which can improve the accuracy of experimental results; it can be used to copy genetically modified animals, which can overcome the genetic defects of sexual reproduction; it can be used to preserve animal genetic resources, which can reduce or replace the population of conservation; it can be used to copy rare and endangered animals, which can make the protection of wild animals become passive It can be used to clone human organs such as skin, blood, heart, kidney, liver and lung, which will bring revolutionary changes to human medicine and health In 1990, the scientific research group of animal cloning technology of northwest agricultural and Forestry University mastered the technology of embryo cloning and bred the first batch of cloned goats in the world In 1995, 45 embryo cloned goats were bred by using embryo cloning technology, forming the largest embryo cloned sheep in the world In June 2000, they produced the world's first batch of somatic cloned goats "Yuanyuan" and "Yangyang", marking that China's embryo engineering research and development strength has reached the international advanced level Later, supported by this technology, Northwest Agricultural University established Keyuan clone Co., Ltd., which is mainly engaged in embryo engineering of livestock and international breeding of improved varieties, and has now become an important base for the industrialization of biotechnology in China It is reported that the base is currently carrying out the research and development of transgenic technology for dairy sheep and cows, and a batch of genetic engineering products with independent intellectual property rights in China will come out soon (author:) share to feed Weibo share to: