A joint research team of Japanese Kirin Brewery researchers and a U.S. venture company has successfully cultivated anti-mad cow disease cattle through genetic technology. According to the “Yomiuri Shimbun†reported on the 31st, the abnormality of the protein Plion is the cause of cattle infection in mad cow disease, which is already widely known. The anti-mad cow disease that the researchers successfully operated on the gene was born without Prion protein. Therefore, this cow does not have the possibility of infecting mad cow disease. The researchers also plan to use this cow to develop new drugs for the treatment of hepatitis C, pneumonia and rheumatoid arthritis, each of which is expected to have a market size of tens of billions of yen. Antibodies used in pharmaceutical products can also be produced by cows infected with mad cow disease, but it is easy for consumers to form a bad impression. For this reason, it was decided to breed anti-mad cow cattle. Kirin Brewery is investigating the injection of genes responsible for human immunity into the bovine body and mass production of antibodies used in pharmaceuticals. New research results are helpful for the expansion of the pharmaceutical industry. According to relevant sources, researchers have not yet planned to popularize mad cow cattle as a meat-eating cow.