>Disclaimer:

These standards and names are a work in progress. We are constantly trying to better them for the benefit of the community. We understand that AFRMA/NFRS, etc have their own standards. We are an entirely seperate entity and have therefore used standards and names that make sense to us as a group. You are in no way, mean or form required to use these standards.

If you have any suggestions, please feel free to contact Nova on info@calicoexotics.com or Shanleigh on imagine.rattery@gmail.com

We try our best to only use “Good Science™”

BlackaaAgoutiA-
Chocolateaa bbGingerbreadA- bb
Russian Blueaa ddRussian Blue AgoutiA- dd
Blueaa ggSlateA- gg
American Minkaa ffAmerican CinnamonA- ff
Australian Minkaa amamAustralian CinnamonA- amam
UK Minkaa mmUK CinnamonA- mm
Champagneaa ppAmberA- pp
Cottonaa rrFawnA- rr
Russian Platinumaa bb ddRussian GingerbreadA- bb dd
Platinumaa bb ggGingerbread SlateA- bb gg
American Coffeeaa bb ffAmerican Spiced CoffeeA- bb ff
Australian Coffeeaa bb amamAustralian Spiced CoffeeA- bb amam
UK Coffeeaa bb mmUK Spiced CoffeeA- bb mm
Chocolate Champagneaa bb ppChocolate AmberA- bb pp
Chocolate Cottonaa bb rrChocolate FawnA- bb rr
Russian Silveraa dd ggRussian SlateA- dd gg
American Russian Doveaa dd ffAmerican Russian CinnamonA- dd ff
Australian Russian Doveaa dd amamAustralian Russian CinnamonA- dd amam
UK Russian Doveaa dd mmUK Russian CinnamonA- dd mm
Russian Champagneaa dd ppRussian AmberA- dd pp
Russian Cottonaa dd rrRussian Fawn A- dd rr
Blue Champagneaa gg ppBlue AmberA- gg pp
Blue Cottonaa gg rrBlue FawnA- gg rr
American Doveaa gg ffAmerican Cinnamon SlateA- gg ff
Australian Doveaa gg amamAustralian Cinnamon SlateA- gg amam
UK Doveaa gg mmUK Cinnamon SlateA- gg mm
American Mink Champagneaa ff ppAmerican Mink AmberA- ff pp
American Mink Cottonaa ff rrAmerican Mink Fawn A- ff rr
Australian Mink Champagne aa amam ppAustralian Mink AmberA- amam pp
Australian Mink Cottonaa amam rrAustralian Mink FawnA- amam rr
UK Mink Champagneaa mm ppUK Mink AmberA- mm pp
UK Mink Cottonaa mm rrUK Mink FawnA- mm rr
Champagne Cottonaa pp rrAmber FawnA- pp rr
Quicksilveraa bb dd ggQuicksilver AgoutiA- bb dd gg
American Mercuryaa bb dd ffAmerican Mercury AgoutiA- bb dd ff
Australian Mercuryaa bb dd amamAustralian Mercury AgoutiA- bb dd amam
UK Mercuryaa bb dd mmUK Mercury AgoutiA- bb dd mm
Albinoc/c
Himalayanc/c^h
Siamesec^h/c^h
Sepiac^hs/c^hs
Tonkinesec^hs/c^h
Martenc^m/c^m
Non-Pointed Martenc/c^m
Pointed Martenc^h/c^m
Sepia Martenc^hs/c^m
Burmeseaa c* BubuWheaten BurmeseA- c* Bubu
Sable Burmesec* BuBuSable Wheaten BurmeseA- c* BuBu
Genotype History Show Standard Points to Remember
aa This colour variety is very old and is one of the first mutations to be scientifically studied. In the book “Genetics of the Norway rat” it mentions that black was already scientifically described as far back as 1877 (Robinson, 1965). Black was already shown in the very first rat show in the Aylesbury Town Show in 1901 (Royer, 1996) To be a deep black all over, devoid of rusting and dullness. No silvering preferred, heavy silvering is a disqualifiable fault. Foot and belly colour to match top. Eyes black
Genotype History Show Standard Points to Remember
aa bb Chocolate was first bred in 1915 and was accepted in show standards in 1935 in the UK. In 1976 it was taken over by the NFRS, but withdrawn in 1978. In 1981 Chriss Lown reintroduced the colour and in 1983 it was again accepted in the NFRS standards (Mays, 1997). Chocolate was first scientifically described in 1932 (Robinson, 1965). Chocolate agouti is the agouti based version of the chocolate colour. Most clubs overseas do not recognize chocolate agouti since its colour is close to cinnamon and due to lack of popularity. To be a rich medium brown all over, devoid of rusting and dullness. No silvering preferred, heavy silvering is a disqualifiable fault. Foot and belly colour to match top. Eyes black.
Genotype History Show Standard Points to Remember
aa dd American Russian blues (from AFRMA) were first bred by Gari Hauser from rats purchased from Karla Barber in 1993 (Royer, 1999). There are many articles in science describing “blue” rat mutations, but it is not certain that they are in fact the same mutation as the Russian blue in fancy rats. Russian blue agoutis are the agouti version of these Russian blues. To be a steely blue-grey with heathering throughout. Devoid of rusting and dullness. No silvering preferred, heavy silvering is a disqualifiable fault. Foot and belly colour to match top. Eyes black.
Genotype History Show Standard Points to Remember
aa gg Due to the varying shades in all types of g locus blue, we have decided to use one genotype and name to describe them. Previously American Blue and Cape Slate were named separately with different genotypes.
GenotypeHistoryShow StandardPoints to Remember
aa amam   
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aa mm   
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aa momo   
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aa pp   
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aa rr   
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aa bb dd   
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aa bb gg   
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aa amam bb   
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aa bb mm   
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aa bb momo   
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aa bb pp   
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aa bb rr   
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aa dd gg   
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aa amam dd   
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aa dd mm   
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aa dd momo   
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aa dd pp   
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aa dd rr   
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aa amam gg   
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aa gg mm   
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aa gg momo   
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aa gg pp   
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aa gg rr   
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aa amam Pepe   
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aa mm Pepe   
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aa momo Pepe   
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aa amam pp   
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aa mm pp   
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aa momo pp   
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aa amam rr   
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 aa mm rr   
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aa momo rr   
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aa pp rr   
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aa bb dd gg    
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aa amam bb dd   
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aa bb dd mm   
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aa bb dd momo   
Genotype History Show Standard Points to Remember
A- The agouti colour is the original colour of the Norway rat. In genetics it is referred to as “wild type”, basically meaning that it is the natural colour which is not mutated by any genes. Most wild rats are also agouti in colour except that their coats are duller since domesticated agoutis are selected for a richer coat colour. The first time agouti appeared at a rat show was at Cheltenham, England in 1902, shown by Douglass and Vale (Royer, 1995). Colour to be a rich chestnut brown with dark grey/black at the base of the hair. Coat to be evenly ticked with black guard hairs. Belly colour to be silver gray. Eye color is black.
Genotype History Show Standard Points to Remember
A- bb Previously unstandardised. Called Chocolate Agouti under all other clubs. Colour to be a rich pecan brown with dark brown at the base of the hair. Coat to be evenly ticked with dark brown guard hairs. Belly colour to be light silver gray. Eye color is black
GenotypeHistoryShow StandardPoints to Remember
A- dd   
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A- gg   
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A- amam   
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A- mm   
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A- momo   
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A- pp   
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A- rr   
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A- bb dd   
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A- bb gg   
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A- amam bb   
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A- bb mm   
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A- bb momo   
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A- bb pp   
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A- bb rr   
GenotypeHistoryShow StandardPoints to Remember
A- dd gg   
GenotypeHistoryShow StandardPoints to Remember
A- amam dd   
GenotypeHistoryShow StandardPoints to Remember
A- dd mm   
GenotypeHistoryShow StandardPoints to Remember
A- dd momo   
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A- dd pp   
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A- dd rr   
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A- amam gg   
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A- gg mm   
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A- gg momo   
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A- gg pp   
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A- gg rr   
GenotypeHistoryShow StandardPoints to Remember
A- amam Pepe   
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A- mm Pepe   
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A- momo Pepe   
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A- amam pp   
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A- mm pp   
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A- momo pp   
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A- amam rr   
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A- mm rr   
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A- momo rr   
Genotype History Show Standard Points to Remember
Genotype History Show Standard Points to Remember
Genotype History Show Standard Points to Remember
A- pp rr
Genotype History Show Standard Points to Remember
A- bb dd gg
Genotype History Show Standard Points to Remember
A- amam bb dd