Abstract
Summary
1. Significant differences in sleeping time have been demonstrated between various strains of mice, inbred and non-inbred, when injected with 125 mg per kilo body weight of hexobarbital. 2. Three different levels of genetic homozygosity were represented in the various strains tested. The most closely inbred strains (A/L, DBA/2, A/He, BALB/c, C57L, C57BL/6, C57BR/cd, C3HfB, BRSUNT, SWR) showed the least variation, the less closely inbred strain (CFW) showed more variation, and the non-inbred Swiss strain showed the most variation.
Get full access to this article
View all access options for this article.