Comprehensive information of science and technology in this issue

Introduction: lvdayuan microbial incubator has passed the identification of a new microbial incubator, which was developed by Beijing lvdayuan Technology Co., Ltd and recently passed the expert identification presided over by Beijing Science and Technology Commission This set of equipment can package a variety of agricultural microbial technologies, covering ecological breeding, ecological planting, harmless treatment of livestock and poultry manure, organic fertilizer production, straw silage, feed fermentation and other fields, solving the key problems of agricultural microbial technology promotion and application This kind of microbial incubator and its supporting bacterial technology combine microelectronic technology and microbial technology ingeniously to simplify the complex microbial technology As long as the user presses a few buttons, the rest of the work can be automatically completed by the incubator, realizing the procedural operation Because users can produce all kinds of microbial preparations at any time according to different needs, thus ensuring the activity and effectiveness of the products, avoiding the costs of packaging, storage, transportation, distribution and other links, greatly reducing the cost of use, and providing a broad development space for microbial technology to serve agriculture The establishment of China's first individual cell cloned bovine embryo transfer center came from the Ministry of Agriculture recently China Agricultural University and Lutai economic and Technological Development Zone have signed a long-term cooperation agreement to jointly research and develop biotechnology At the same time, China's first individual cell cloned bovine embryo transfer center was established in Tangshan It is understood that as early as 2001, China Agricultural University and Lutai economic and Technological Development Zone began to cooperate to jointly establish a biotechnology experimental base In April 2002, China's first local high-quality dairy was born in Lutai economic and Technological Development Zone Since then, five high-quality cows were successively bred in this development zone This year, two cloned cows with the world's latest drug protein gene were bred At present, the survival rate of cloned cattle in Lutai economic and Technological Development Zone is at the leading level in China The establishment of China's first individual cell cloned bovine embryo transfer center will become the breeding base and bioengineering service center of cloned cows in North China New green feed additive: soybean isoflavone in recent years, with the increase of feed output, the market competition is more and more fierce, there are more and more problems in feed production and use In particular, the abuse of antibiotics, heavy metal salts and illegal drugs in feed has brought serious economic losses to the breeding industry, and more importantly, it directly or indirectly threatens human health High yield, high quality, high efficiency, no pollution "is the theme of sustainable development of animal husbandry in the 21st century It is an inevitable trend to produce safe and environmentally friendly feed The development of new green feed additives has become a hot topic in feed research Soybean isoflavone is one of the most promising Soybean isoflavone is a kind of secondary metabolite formed in the process of soybean growth In 1931, soybean isoflavones were isolated and extracted for the first time In 1962, Setchell and adlercreutz first confirmed that the structure of soybean isoflavones was similar to that of mammalian estrogen, and elaborated their possible anti-cancer effect A large number of studies since 1980 have shown that soybean isoflavone has obvious curative effect on the prevention and treatment of cancer, female climacteric syndrome and female senile osteoporosis In the 1990s, soybean isoflavone began to be used in animal production and showed good production effect, so it has been gradually paid attention by animal nutritionists Recently, the animal husbandry disinfector that can prevent and cure avian influenza has come out According to the news from Beijing Qinghua Yuandingyuan science and Trade Co., Ltd., a disinfector that can kill and prevent avian influenza virus and kill all kinds of bacteria and viruses - QQ disinfector is about to come out Using salt as raw material, QQ disinfector can produce chlorine containing disinfectant The chlorine containing disinfectant produced by this high-tech product is not only non-toxic, no side effects, but also easy to degrade, and will not cause secondary pollution to the environment The test by Beijing Center for Disease Control and prevention shows that the disinfectant produced by this product has good effect QQ sterilizer is widely used in the farm, which can be used for disinfection of livestock drinking water, poultry houses, environment, appliances, etc Recently, the highly pathogenic avian influenza caused by H5N1 serotype, which is rampant at home and abroad, is a kind of infectious disease of cold virus, and has been designated as a Class A infectious disease by the World Health Organization Although avian influenza virus is very infectious and harmful, according to Wang Delong, Vice Minister of the Ministry of health, the virus can be effectively killed by chlorine disinfectant The results show that chlorine containing disinfectant can kill avian influenza virus, hepatitis B virus, Escherichia coli, Staphylococcus aureus and so on, which is very effective in the prevention and control of avian influenza and environmental disinfectants The application of the disinfection equipment and technology in the farm and livestock industry will help to get rid of the current problems of avian influenza and other diseases, improve the production level and economic benefits, and play a great role in preventing small and medium-sized farms With China's accession to WTO and the continuous improvement of the scale and industrialization of animal husbandry in China, the international and domestic environment for the development of animal husbandry in China has changed significantly The development of rural economy and the increase of farmers' income put forward higher requirements for the development of animal husbandry In order to meet the requirements of animal husbandry development in the new situation, accelerate the transformation of animal husbandry production, management and growth mode, and improve the quality and efficiency of animal husbandry development, Henan Province took the lead in launching the animal husbandry information construction project of the province After three phases of construction, a relatively complete animal husbandry information network has been preliminarily established, realizing the provincial, municipal and county level networking, and realizing the actual situation of animal husbandry in the province Now it has built a new information platform and laid a solid network foundation Asia's proposed "veterinary network" against avian influenza At the just concluded expert meeting on veterinary and animal health in Asia, the food and Agriculture Organization of the United Nations (FAO) announced that it would set up the first "veterinary network" to help Asian countries fight against avian influenza, and planned to invest US $1.2 million to link laboratories in 23 countries in Asia into a network, to share information on the outbreak of avian influenza and fight against avian influenza together FAO said that the spread of avian influenza has no national boundaries, and individual countries cannot effectively control the spread of avian influenza The most effective way is to establish regional cooperation networks The "veterinary network" will help 23 countries in Asia to fight against avian influenza The main measures are: to connect relevant national laboratories of 23 countries into a network, to inform each other about the outbreak of avian influenza, so as to establish a national epidemic monitoring mechanism; to train medical technicians to promote exchanges between countries, improve the diagnosis level of avian influenza, and improve the collection of epidemiological data 。 FAO will establish three "veterinary networks" in Asia, which are respectively located in Southeast Asia, involving 10 countries such as Cambodia, Laos, Indonesia, Malaysia and Thailand, as well as South Asia and East Asia; China will participate in the "veterinary network" established by FAO in East Asia.