Accession Number : AD0676985

Title :   DRY BACTERIA CULTURES FOR COMBATING RODENTS,

Corporate Author : ARMY BIOLOGICAL LABS FREDERICK MD

Personal Author(s) : Bobovich, V. T.

Report Date : SEP 1968

Pagination or Media Count : 10

Abstract : The possibility of obtaining and storing the cultures of the Isachenko and Merezhkovski bacteria has been principly established; they can be stored for many years, dried in a vacuum in a frozen state. During storage for a year, in a vacuum at room temperature, the vitality of the cells remain at a level which is sufficient for use in preparations of the deratization practice. This is in regard to government specifications. Storage of the dry cultures without the vacuum leads to their death in 3-6 months. The pathogenicity of the dry cultures, stored in a vacuum at room temperature, can be compared with the pathogenicity of the liquid cultures. Diurnal (24 hour) cultures, vivicated from an 8 year dry culture, do not deviate from the pathogenicity of the ordinary liquid culture. A varification of the effectiveness of the dry cultures in agricultural conditions gave positive results. (Author)

Descriptors :   (*RODENTICIDES, EFFECTIVENESS), FREEZE DRYING, VACUUM, STORAGE, USSR.

Subject Categories : Toxicology
      Hygiene and Sanitation

Distribution Statement : APPROVED FOR PUBLIC RELEASE