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Inbred Strains of Mice: CC57BR


Inbr: F83. Chocolate. Genet: a, b. Origin: Medvedev, 1943 from BALB/cN female x C57BL/N male.


No spontaneous mammary tumours, but about 60% when the milk agent is introduced. Primary lung tumours 22%. Incidence of all other tumours less than 1% (Heston, 1963). Life-span about 18 months (Medvedev, 1969). High spontaneous locomotor activity (9/9). Short time of immobility in a forced swimming test (7/9) (Nikulina et al 1991). Clonidene induces a strong aggressive behavioural response (3/9) (Nikulina and Klimek, 1993).

Heston W. E. (1963) Genetics of neoplasia, in Methodology in mammalian genetics (Burdette W. J., ed), pp. 247-268. Holden-Day, San Francisco. \par

Medvedev N. N. (1969) Inbreeding, fertility and viability. Sov. Genet. 5, 376-387. \par

Nikulina E. M., Skrinskaya J. A., and Popova N. K. (1991) Role of genotype and dopamine receptors in behaviour of inbred mice in a forced swimming test. Psychopharmacology 105, 525-529. \par

Nikulina E. M. and Klimek V. (1993) Strain differences in clonidine-induced aggressiveness in mice and its interaction with the dopamine system. Pharmacol. Biochem. Behav. 44, 821-825. \par

Updated 9 Apr. 1998
Michael FW Festing
MRC Toxicology Unit, Hodgkin Building,
University of Leicester, UK

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