AFRMA Fancy Rats

AFRMA Fancy Rats - Odd-Eye

Rat Odd-Eye as recognized by the American Fancy Rat and Mouse Association. See Fancy Rat Genes for genetics.

Odd-Eye rats have 2 different colored eyes.

For complete details of these Standards including points, faults, and disqualifications, please refer to the AFRMA Show Regulations & Standards book.

Note: The pictures on this page are not meant to be true representatives of the animal’s color. Because of differences in monitors (CRT/LCD) and how the monitor is adjusted, the colors may be different. Seeing in person is always best.

ODD EYE - Odd-eye rats may be shown in any recognized color. The unique feature is one eye pink and one eye dark ruby or black. The markings, if any, to be judged at the judge’s discrection and may be in a recognized or unrecognized pattern. (Karen Hauser/Karen’s Kritters) [Standardized November 15, 1992] Note: Originated at Cal Poly Pomona, CA, Karen Hauser got rats January 24, 1983; Odd-Eye known as heterochromia iridium; usually seen in Capped-type markings, most common colors are Fawn or Beige, has also been seen in Lilac and Cinnamon; usually has white face and where the white is, is where the red eye is Fawn & White Capped Odd-Eye Standard owned and bred by Karen Robbins. Photo ©1995 Craig Robbins. Research articles on Heterochromia iridis: Restriction of Color in the Rat with Associated Sterility in the Male and Heterochromia in Both Sexes Laurence G. Gumbreck, et al. Journal of Experimental Zoology, Volume 180, Issue 3, June 1972, Pages 333–349. “Ocular Sites of Gene Expression in the Norway Rat” R. K. Harkins J. E. Allison R. M. Macy. Journal of Heredity, Volume 65, Issue 5, 1 September 1974, Pages 273–276.
Fawn & White Capped Odd-Eye Standard owned and bred by Lorryta Bowker. Photo ©1996 Craig Robbins.
Beige & White Capped Odd-Eye Standard owned by Gina Hendricks and bred by Hilloah Whealser. Photo ©2006 Karen Robbins.
Lilac Variegated Odd-Eye Standard owned by Michelle Gallati. Photo ©1989 Karen Hauser.
Cinnamon & White Capped Odd-Eye Standard owned and bred by Karen Robbins. Photo ©1996 Craig Robbins.
Fawn Blaze Berkshire Odd-Eye Rex owned and bred by Lisa Jarosek. Photo ©2012 Karen Robbins.
Powder Blue Blaze Berkshire Odd-Eye Rex owned by Lisa Jarosek, bred by Jozzette Hagemann. Photo ©2013 Karen Robbins.
Beige & White Capped Odd-Eye Dumbo owned and bred by Nicole Marlin. Photo ©2015 Karen Robbins.
Blue Blaze Berkshire Odd-Eye MV-Bristle Coat Dumbo owned and bred by Jeannine Porter. Photo ©2016 Karen Robbins.

For complete details of the Standards including points, faults, eliminations, and disqualifications, please refer to the AFRMA Show Regulations & Standards book.

Purchase the AFRMA Official Color Standards Rat book.

Updated March 27, 2023