RELATIVE RESISTANCE OF GERBILS AND RATS TO ACUTE COBALT-60 IRRADIATION,
Abstract
Ninety Mongolian gerbils (Meriones unguiculatus) and 90 Sprague-Dawley rats (Mus norvegicus) were exposed to acute 60Co radiation to determine the relative radioresistance of the two species and the LD50/30 for the 12-week-old Mongolian gerbil. For each species, three groups of 6 animals were exposed at doses of 750, 850, 950, 1,050, and 1,150 R, at an approximate dose rate of 90 R/min. The gerbils were found to be significantly more radioresistant than the rats of comparable age. In a supplementary experiment to demonstrate more definitively the LD50/30 of the gerbil, this species was exposed to dose ranges of 950 to 1,350 R. The LD50/30 for the 10-1/2-week-old rat was observed to be 856 R, and the LD50/30 for the 12-week-old gerbil was 1,132 R. (Author)
Document Details
- Document Type
- Technical Report
- Publication Date
- Mar 01, 1969
- Accession Number
- AD0688375
Entities
People
- Arthur E. Gass Jr.
- William F. Belk
Organizations
- United States Air Force School of Aerospace Medicine