Continued from page 1
b: Brown - The rabbit is brown based, meaning
base colour is chocolate or lilac.
C LOCUS
"C" is
next "letter". This "letter" tells
rabbit whether or not to have red colouring, as well as how deep and dark
base colouring is. The genes are as follows:
C: Full Colour - The red colouration of
fur is full expressed, and
base colouring is also fully expressed.
c(chd): Chinchilla Dark - All red colouration is removed from
coat, but
base colouring is still fully expressed.
c(chl): Chinchilla Light - All red colouration is removed from
coat, and
base colouring is lightened, causing darker shading around
head, ears, tail, feet, and legs.
c(h): Californian - All red colouration is removed, and
base colouration is restricted to
nose, ears, feet, legs, and tail. The eyes are red.
c: Albino - All colour is restricted, leaving a pure white rabbit with red eyes.
D LOCUS
Next in
genetics alphabet is "D". This "letter" determines how much pigment is in each hair shaft. The less pigment there is,
lighter
colour is. The genes are as follows:
D: Dense - Full amount of pigment
d: Dilute - The pigment is less, causing
colour to look diluted.
E LOCUS
The "letter" "E" controls
banding, or colour rings (remember in agoutis where you can see
rings when you blow into
coat?) of a rabbit. The genes are as follows:
E(s): Steel - The undercolour is extended and "takes over"
colour, leaving a mostly solid coloured rabbit with some gold or silver tipped hairs.
E: Full-Extension - The rabbit has normal colour, and
bands are not disturbed.
e(j): Japanese - This takes
bands and actually seperates
band colour into different hair shafts. This is how Tricolourr and Harlequin are produced.
e: Non-Extension - There is no colour extension, leaving only what would be
intermediate band in a normal coloured rabbit. This is how Oranges, Frosed Pearls, and Tortoises are produced.
EN LOCUS
The "En" "letter" controls a different type of pattern. The genes are as follows:
En English Spotting - The rabbit is white with coloured spots.
en: Solid - The rabbit has no spots.
V LOCUS
"V" is
next "letter" in
genetic alphabet, and for most breeds, no more of
alphabet is needed to know
variety. This tells whether or not
rabbit is a Blue Eyed White.
V: Non-Vienna - Normal coloured rabbit.
v: Vienna - Blue Eyed White.
W LOCUS
This "letter" is rarely included in
genotype because it is not very important in most varieties, though all varieties DO use it.
W: Non-Wideband - Normal colouring.
w: Wideband - The red colour becomes very intense,
intermediate band widens, and
red colour "takes over" all tan pattern and agouti markings so that instead of being cream or white, they are red.
SI LOCUS
This "letter" is another that is rarely included in
genotype. All non-silver rabbits do not need this included in their genotype in order to let
viewer know that
rabbit is not silver.
Si: No-Silver - Normal colouring.
si: Silver - Silver-white hairs are scattered throughout
normal colouring.
DU LOCUS
This "letter" is usually only used when refering to
breeds Dutch, Dwarf Hotot, and Hotot.
Du: Non-Dutch - Normal colouring.
du(d): Dutch Dark - Dutch markings, mostly coloured rather than white.
du(w): Dutch White - Dutch markings, mostly white rather than coloured.
Genotypes
In order to have a full knowledge of
variety of a rabbit, just by looking at
genotype, a full genotype, using all of these loci. For example, a Chestnut Agouti would be denoted as A_ B_ C_ D_ E_ enen V_ W_ Si_ Du_. The spaces just mean that a recessive gene could be there, hidden by
dominant gene. However, most people know that
shortened form of
genotype, A_ B_ C_ D_ E_ enen, also means Chesntut Agouti.

Breeder and exhibitor of show rabbits for 11 years, member of the American Rabbit Breeders Association, and fan of all animals.