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Blue Rat Genetics by Debbi J. Needham

At Odd Fellows Rattery blue rats were introduced into many of our lines of huskies and Siamese.
There are two common kinds of blue rats, Russian Blue and American Blue. These rats are genetically different.
To be blue, both kinds must have two recessive blue genes (homozygous) to turn the coat blue - or gray, as some call it not in the
hobby. The two genetically different kinds of blue will produce black rats if bred together.
American blues tend to be very light powder or sky blue to dark slate blue. The genetic symbol is gg.
Russian blue rats are usually very medium blue to dark Russian blue as seen in cats. The genetic sign is dd.
In our husky Russian blue rats, the blue color is diluted, so they appear as light or lighter than American Blue rats.
Platinum rats are genetically homozygous for blue (gg or dd) and homozygous for beige (rr).
That is they inherited the genetics for both blue and beige color.
Silver rats are genetically homozygous blue (gg or dd) and champagne (pp).

American Blue Rats

BdB Neptune, Dark American
Blue Self - Bred with OFR
Moona to produce black rats.

OFR Chloe, Dumbo light
American Blue Velveteen Self -
Bred from OFR Sasha and OFR
Princeton.

OFR Princeton, Dumbo light
American Blue Velveteen Self -
Bred from RSKL Rhodie and
OFR Sparky.

OFR Mandy II, Russian Blue
Husky - Bred from OFR Moses
Jr. X OFR Thalassa.

OFR Moses Jr (left), Black
Husky, son of OFR Moses (right)
Russian Blue Odd Eye.

OFR Bluebell, blue hooded.
Bred from OFR Princess Blue
and D61 Aremes, beige capped
velveteen.

OFR Solace, Dumbo Blue Point
Himalayan. Born from OFR
Sparky and OFR Sasha.

OFR Moona, Dilute, pink eyed,
Russian blue hooded.

RSKL Rhodie, Silver satin.

WWR Mediterranean, Blue.

OFR Sasha, Himalayan, blue
carrier. Born from OFR Gidgit
and WWR Mediteranean.

OFR Ping, Smoked Blue.

OFR Princess Blue, Blue.

OFR Gidgit,
Himalayan, blue
carrier. Born from
OFR Princess Blue
and OFR Favorite.

Blue Rat Genetics by Debbi J. Needham
2010 Repost - 1st posted ~ 2003

Russian Blue rats