Application of Ozone Water Treatment for the Breeding of Laboratory Animals Free from Pathogenic Germs M. Bataller, R. Pérez-Rey, C. Mora, E. Limonta, A. Aquino, C. Cosmes(1), D. Porras(1), O. Mosqueda(1) Ozone Research Center, Cuba. 1 - Biotechnology and Genetic Engineering Center, Cuba. The development of biotechnology and pharmaceutical industry in last years in Cuba has increased the consumption of laboratory animals free from pathogenic germs, which are bred in barrier conditions and require the supply of very high microbiological quality water. This paper present the use of ozone water treatment through an automated system. It was designed, manufactured by Ozone Research Center and put on to work in Biotechnology and Genetic Engineering Center. The results obtained show the efficiency of ozone to achieve this aim and the economical advantages it has in comparison with the thermal treatment. Source: 2nd International Symposium on Ozone Applications Havana, Cuba - Mach 24-26, 1997.