Rat Genetics, Shows and Prizes.

Show Winners

Girls

Gr. Ch. Bella


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June 2003

* Grand Champion Rat

* Best Self ticked Rat

* Best/First in Self Ticked Rat-Agouti

July 2003

* Second in Ticked Rat-Agouti self

September 2003

* Second in Ticked Rat-Agouti self
Cayos Opalton

June 2003

* Best Pet Rat/First place Pet Rat class

July 2003

* Second in Pet Rat class

Victoria

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May 2003

*Best/First in Self Rat Ticked -Silver fawn

June 2003

*Best/First in Self Rat Ticked -Silver fawn

July 2003

* Best/First in Self Rat Ticked -Silver fawn

September 2003

* Best/First in Self Rat Ticked - Silver fawn

April 2004

* Best/First Head Rat Female
Cayos Mount Isa




May 2003

* Best/First in Marked Rat-Berkshire

June 2003

* Third in Marked Rat-Berkshire

Febuary 2004

* Second in Best Eyes

Cayos Darling River
NO PHOTO AVAILABLE

June 2003

* Best/First in Marked Rat- DU Vari/Hood class

July 2003

* Best/First in Marked Rat- DU Vari/Hood class

September 2003

* Third in Marked Rat - DU Vari/Hood class

Royaloaks Fleur Delecour



August 2003

* Second in Kitten class

September 2003

* Second in Marked Rat - Irish

Hermione Granger

September 2003

* Third in Marked Rat - Hooded

Cayos Moaning Myrtle



,

Febuary 2004

* Third in Most Matched Pair with brother Seamus

* First in Pro Hart

Boys

Keegar

March 2003

* Third in Marked Rats-Hooded

Cayos Gibson Desert



March 2003-

* 2nd in Self Rat- PEW class

May 2003-

* 3rd in Self Rat - PEW class

June 2003-

* 2nd in Self Rat- PEW class

September 2003-

* 1st in Self Rat- PEW class

Cayos Little Boy

NO PHOTO AVAILABLE

September 2003

* First Marked Rat- DU Vari/Hood

Malfoy

Photo to come

September 2003

* Second Kitten class

Cayos Seamus Finnaginn



Febuary 2004

* Third Most Matched Pair with his sister Myrtle

Cayos Charlie Weasley



Febuary 2004

* Third Senior Pet Section

Website Awards.

Website Awards We've won

2003 Web Awards



Thank you to KuddlyKorner4u

http://kuddlykorner4u.com



Thank you to Pier Rat's.

http://www.pierrats.com



Thank you to Ratz 4 ever

www.freewebs.com/ratz4ever/

Thank you to the Canadian Web Awards

http://www.canadianwebawards.com

Thank you to Karen Coffey for this award.

http://www.myratties.fsnet.co.uk

Apply for a Royal Stuart Rattery web Award.

To apply for the Royal Stuart Rattery web award click on the icon bellow.

Web Award

Rat Colour Genetics

A, Agouti	The A or Agouti gene controls the banding on the rat's coat. An agouti rat is basically a black rat with the golden brown band on the hair. Without the dominant A agouti gene, you have a pair of recessive genes, written as aa. aa produces a plain black rat. In colour standards we often see rat colours divided up into those with the Agouti gene "on", and those with the A gene "off" or recessive. Colours such as Silverfawn and Cinnamon are banded colours, because they have the Agouti banding "on" either AA or Aa. Colours like Black, Mink and Champagne have a pair of recessive Agouti genes, aa. The aa Agouti genes are not active, so there is no banding or ticking on the hair
C, Albino:	The C gene controls the full colour of the animal. A cc rat is an albino, no colour appears at all. Where the gene is present as CC or Cc, it has no effect on the colour. A mutation of the C gene, ch, produces the Siamese and Himalayan colours.
H, Marking:	The H gene controls marking or pattern on the coat. HH is a self or unmarked rat. hh is a hooded rat, with other variations producing the other markings
B, Black:	The B gene is a mutation of the black. Two recessive B genes, bb, produce a Chocolate coloured rat.
M, Mink:	Mink or M is also a diluting gene, producing the brown/blue colour
D, Dilution:	The D gene dilutes the colour of the animal, a dd in combination with the aa dilutes the basic black colour to a blue. The dd mutation has been found in Australian domesticated rats in 2001
R, Red or Ruby eyes	The R gene acts on the colour of the rats' eyes. A rat with two recessive genes, rr, will have ruby coloured eyes. This also affects the colour of the rat's coat
P, Pink eyes:	The pink P gene is what produces the pink eye. This also affects the colour of the coat.
S, Silvering	S is what can produce silvering or silver guard hairs on a coloured rat. Two recessive, ss, genes gives the silvering to Silvered Black, Silvered Mink etc. This is not the gene which gives us the Silverfawn colour. Silverfawn, as you'll see in the descriptions, is a "pink eyed agouti".
Re, Rex:	The Rex affects the texture of the rats coat. One dominant rex gene, also written as Rere, produces a fluffy or even curly coat. Homozygous rex, ReRe, produces a rat which has a very coarse coat without much hair
kk, Kinky	The recessive rex which affects the texture of the coat. This genotype produces a slightly longhaired rat, thus becoming progressively more curly throughout their life. A kinky rat has whiskers and also guard hairs of normal length but which are also wavy or curled.

aa, Black	Eye colour Black. The rat should be a solid black colour, without rusting or white hairs and devoid of dinginess.
aamm, Mink	Mid-grey brown colour, devoid of silvering, patches and dinginess. Eye colour Black
aadd, Blue	Should be a deep, evenm steel blue colour, without any brown colourisation. Eye colour Black
aammrr, Dove	Must be even dove grey colour, devoid of any fading or patchiness. Eye colour Ruby
aarr, Buff	Even cream colour with a grey hue. Eye colour Ruby.
aapp, Champagne	Light beige in colouring, without any sign of dullness or greyness. Eye colour Pink.
Black Eyed White	This rat is to be as white as possible. Eye colour Black
cc, Pink Eyed White	This rat is to be as white as possible Eye colour Pink

AA or Aa , Agouti	Must be golden chestnut brown in colouring, has dark grey to black base fur. Belly should be a silver grey colour. Eye colour Black
A-mm, Cinnamon	Warm Red Brown with black guard hairs. Belly should be a light silver grey Eye colour Black
A-dd , Blue agouti	Should be medium fawn colour, evenly ticked with mid-blue guard hairs. Base colour should be blue down to the skin.Belly should be a silver colour. Eye colour Black
A-rr , Argente	Warm orange colour, evenly ticked with grey guard hairs. Base colour should be cream down to the skin. Belly colour should be pale brown. Eye colour Ruby
A-pp, Silver fawn	Pale orange brown colour, evenly ticked with white (silver) guard hairs. Base colour is to be silver down to the skin. Belly should be white. Eye colour Pink

Helpful hints....

* Some genes are dominant and some genes are recessive, a rat might carry two dominant genes, two recessive genes, or even one of each. (example: AA,aa, or Aa)

* Australia has both Agouti and black rats, therefore, both genotypes (AA and Aa) can be found in Australia.

There is no phenotypical difference between an Agouti rat with the genotype Aa (heterozygous) and an Agouti rat with the genotype AA (homozygous), only a genetic difference.

Aa is an Agouti rat which carries black and AA is just an Agouti, that isn't carrying anything.

* There are several genes that cause dilutions, the red eyed dilution is just one of the many.
The red eye dilution does effect the coat Colour, however, this is not quite so dramatic.
The pink eyed dilution also effects coat Colour etc...there are many genes that can cause dilutions.

* A Tyrosinase also known as an albino has the same gene symbol as mice and humans which is Tyr. Most of the time many genes among species are given the same symbol. For example, the dd symbol for blue is also used for cats, dogs and rabbits. Quite often genes with the same symbol are alike (dd in cats and dogs have a similar effect as dd in rats.) As dd was discovered first it was of course it became the symbol. The other gene symbol for blue rats was rbrb.

* The reason why the Olfactory marker protein mice and rats have the same genotype, which is Omp, is stated above in last point.