Japan's response to BSE infection by examining feed

Introduction: the impact of BSE is so serious that it involves all aspects of production, circulation and consumption In order to deal with the occurrence and treatment of BSE, Japan is still studying and formulating new countermeasures, one of which is to conduct scientific inspection on feed The Ministry of agriculture, forestry and Fisheries analyzed and judged whether meat and bone meal, which is regarded as the source of BSE pollution, was mixed into the feed for cattle, and the development of this inspection technology is stepping up However, it is difficult to detect animal raw materials such as meat and bone meal in the feed, so comprehensive RNA analysis and microscopy should be carried out specifically After the most appropriate method is established, the composition of individual raw materials for compound feed should be inspected in the whole country as early as next year Ribonucleic acid test is to analyze whether the ribonucleic acid of cattle, pigs and other animals exists in the feed If ribonucleic acid is found, it indicates that the feed contains animal materials such as beef meat and bone meal The microscopic examination is to dye the beef slices of cattle and pigs contained in the feed to screen out the morphological characteristics of the bone slices According to the Research Institute of BSE strategy and technology of Japan's Ministry of agriculture and forestry, the reason for BSE infection is that abnormal free radical protein cannot be detected in feed, that is to say, it is very important to check whether the free radical protein exists in animal tissues and cells scientifically However, due to the fact that all kinds of raw materials such as minerals and plant proteins in the compound feed for cattle and pigs are added, and after high-temperature and high-pressure processing, all kinds of raw materials such as animal proteins in the feed are likely to change their characteristics, so it is very difficult to detect the animal raw materials in the compound feed correctly, so they must be transported flexibly Use comprehensive inspection technology It has been 11 years since the specific occurrence of BSE, that is, in Switzerland in Europe, the countermeasures against BSE have been carried out, but it can't be said that BSE has died Meat and bone meal, which is the source of BSE infection, has been proved to be related to infected cattle by strong evidence, but the explanation of its infection route is very difficult Europe, which first discovered BSE, originally made strict regulations on the distribution of meat and bone meal in the government administration, but the fact that it could not be completely controlled and managed was obvious But in this way, experts still think of as many comprehensive and feasible methods as possible to block the cavities where the meat and bone meal does not enter the cattle mouth OIE, which has a detailed study on BSE, said that after BSE was confirmed in 1990, Switzerland quickly banned the feeding of cattle with animal feed, including meat and bone meal According to statistics, the incubation period from BSE infection to real symptoms is generally within 10 years After banning the use of animal feed including meat and bone meal in feed, there was no record of BSE in Switzerland until 2000 But in 1995, cattle born after the ban on the use of meat and bone meal were found to be infected with BSE Since then, there have been several sporadic cases of BSE infection Switzerland is the first country to implement effective measures to deal with BSE in Europe, and it has made progress in the inspection of BSE, but still can not completely prevent the occurrence of BSE, which shows that there are unexpected holes in the administrative measures of BSE In the United Kingdom and other European countries, BSE is mainly detected by staining the animal bone in the feed and then confirming it with a microscope Up to now, the European Union has adopted a more reliable method than today, that is, to detect the animal protein in the feed after high temperature and high heat treatment This method has been evaluated with good performance In fact, BSE is caused by infection, and it is caused by feed pollution The methods used so far to track the infection of virus and kill it are not able to be solved It can only be imagined from a broader perspective that the effective work should be done by thoroughly integrating the inspection and supervision system of feed from the standpoint of a third party.