The Lewis rat was raised by Doctor Lewis, from where also comes and the name of the breed, is a product of Wistar breed. They are white, well-behaved, and have low fertility. They endure couple sudden pathologies. Lewis rats can endure high frequencies of neoplasms, with their lifespan decided by this.
The more typical are adenomas of the pituitary and the adrenal cortex in the two sexes, endometrial carcinomas and mammary gland tumors in feminine, and C-cell adenomas of the Thyroid Gland and tumors of the haemopoietic system in masculine.
A Lewis rat is likely to acquire a spontaneous transplantable lymphatic Leukemia.
In addition to all of this, they sometimes form sudden glomerular Sclerosis.
Our catalog for Lewis rat Plasmas, Serums, Antigens.