In vitro fertilization of cattle in China

Introduction: Professor Xu Rigan, academician of the Chinese Academy of engineering and a famous bioengineering expert, said in an interview that the in vitro fertilization technology of cattle under his leadership is now mature and has the requirements of industrial production, so it is urgent to find partners According to Professor Xu Rigan, bovine in vitro fertilization technology, also known as "in vitro bovine technology", is an important project in the national "863" high-tech development plan After nearly ten years of systematic and creative research, the experimental animal research center of Inner Mongolia University has summed up a complete set of mature technology process for industrialized production of bovine "test tube embryo", which is at the advanced level in the world In 1995, the research center established a modern laboratory in Australia in cooperation with the Animal Biotechnology Center of the school of veterinary medicine, University of Melbourne, Australia It has produced nearly 10000 high-quality and low-cost beef cattle and cow embryos, which have been transported to China Last year, they were transferred to more than 20 domestic cows for conception, and 15 cows have calved The rest will By August this year, all the babies were delivered Xurigan said that China's traditional artificial fertilization has only been developed into a variety for 20 years, and then it still faces the problem of degradation In vitro cattle technology can be used to get pure cattle in that year At present, it needs 30000 to 50000 yuan to introduce an adult cow into our country, and about 300 US dollars for each in vivo fertilized embryo However, the cost of using "in vitro cow technology" to produce an embryo is only about 100 yuan China is rich in recipient cattle resources, and the stock of Inner Mongolia cattle alone is more than 4 million This advantage of recipient cattle lays the foundation for large-scale transfer of Australian pure cattle embryos and production of improved and pure cattle Professor Xu Rigan said that at present, the annual average milk production of each cow in China is about 5000 kg, while that of a good breed cow in the world can reach 10000 kg, two or three heads; the average weight of each Mongolian yellow cow in China is about 300 kg, while that of the Australian pure breed heft cow can reach 800 kg within two years, and the meat price is also very expensive At present, China has imported 100 yuan per kilogram of fat beef and 140 yuan per kilogram of lactating calf meat In such a large market demand, if we can use IVF technology to produce good breed, pure breed cows and beef cattle, it will not only save a lot of foreign exchange and produce considerable economic benefits, but also play a positive role in improving the existing cattle breeds and promoting the development of cattle industry Therefore, it is necessary to establish a large-scale and intensive demonstration pasture On the one hand, it can expand the base group of pure cattle, and gradually establish a set of high-tech biological breeding and production system for improved cattle; on the other hand, it can provide the base with improved cattle, embryos, and related technical training or technical services, so that the "test tube cattle technology" is really going to industrialization At present, Inner Mongolia University has a farm covering an area of about 80 mu in the southern suburb of Hohhot, which is an ideal pasture base If 5 million yuan can be invested, a pasture with 500 pure cattle can be established, and all investment can be recovered within 3 to 4 years after the scale is formed After that, the annual net profit can reach more than 2 million yuan.