B

Inbr. F120.

Colour: Albino.

Genet: c.

Origin: Dr. P Swanson from Wistar stock now known to be King B strain, to Dempster at F43. To Harrington in 1971 at F85.

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Characteristics

Large body size (68g at 28 days). Poor maternal instincts, and reproduction; fertile. Aggressive towards handlers. High open-field activity and (unusually) high defecation (Harrington 1981) Colony in danger of dying out (Greenhouse et al 1991).

B/1

Inbr. F36 (NIH 1989).

Origin: No further information.

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Harrington G. M. (1981) The Har strains of rats: Origins and characteristics. Behav. Genet. 11, 445-467.

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